Hemorrhoids



Hemorrhoids


Marvin L. Corman




And the men that died not were smitten with the emerods; and the cry of the city went up to heaven.

—1 Samuel 5:12*


*It is always stimulating to receive comments from readers of prior editions, especially those that are not merely flattering but from which I may learn of mistakes and omissions. The following communication was received from Professor Samuel Argov in Haifa, Israel.

–MLC


I read the Bible in its original Hebrew, and, being a colorectal surgeon, I have investigated the story of the Holy Ark, the Philistines, and the Israelites, as narrated in Samuel 1, Chapters 5, 6. It would appear that the Philistines were struck by an epidemic which is almost certainly bubonic plague, caused by Yersinia pestis. As is well-known, the disease is transmitted by mice and rats through their fleas. The epidemic swept quickly through the population (Samuel 1, Chapters 5, 11, 12). It is difficult to conceive of an epidemic of hemorrhoids. The fact that the Philistines gave an offering of five golden mice implies that they knew the pathogenesis of the plague (Samuel 1, Chapter 6, verse 4). This confusion of interpretation arises from an early incorrect translation of the Hebrew word Tchorim by the vulgata and later copiers to mean hemorrhoids. In actuality, the original Hebrew word Tchorim meant a ball or bubo. The mistake was carried forward into modern Hebrew. Even today in Israel, everyone uses the biblical term for the wrong disease.

Hemorrhoid disease affects more than 1 million Americans per year.37 It has been estimated that over a period of 3 years, approximately 4.4% of the US population will have symptoms attributed to hemorrhoids.142 Although the condition is rarely life threatening, the complications of therapy can be. This fact led to the beatification of St. Fiachre, the patron saint of gardeners and hemorrhoid sufferers.239,269 From the patient’s perspective, the complaint of “hemorrhoids” simply represents the diagnosis for a host of anal problems, including itching, a lump, pain, swelling, bleeding, and protrusion. In most physicians’ office practices, it is as likely that an individual’s symptoms will be attributable to another cause as they are to hemorrhoids.

Hemorrhoid complaints are one of the most common afflictions of Western civilization. The problem can occur at any age and can affect both sexes. It has been estimated that at least 50% of individuals older than the age of 50 years have at some time experienced symptoms related to hemorrhoids. Johanson and Sonnenberg analyzed data from governmental sources and concluded that the prevalence rate in the United States is 4.4%.142 In their study, Whites were affected more frequently than African Americans, and there was an increased frequency in those of higher socioeconomic status. It is also more common in rural than in urban areas. Some reports have commented on the relative rarity of the condition in rural Africa.43

The following have been suggested as factors that contribute to the development of hemorrhoids:



  • Heredity


  • Anatomic features


  • Nutrition



  • Occupation


  • Climate


  • Psychological problems


  • Senility


  • Endocrine changes


  • Food and drugs


  • Infection


  • Pregnancy


  • Exercise


  • Coughing


  • Straining


  • Vomiting


  • Constrictive clothing


  • Constipation19,79






FIGURE 11-1. The three primary hemorrhoidal groups.






FIGURE 11-2. Anatomy of the anal region.

Burkitt and Graham-Stewart refute most of these concepts and provide their own theories of pathogenesis (see the following section).43 This report and those of others have clarified the anatomy and attempted to establish the etiology on a more scientific footing.


▶ ETIOLOGY AND ANATOMY

In 1975, Thomson published his master’s thesis based on anatomic and radiologic studies and introduced the term vascular cushions.290 According to this theory, the submucosa does not form a continuous ring of thickened tissue in the anal canal, but rather a discontinuous series of cushions; the three main cushions are found in the left lateral, right anterior, and right posterior positions (Figure 11-1). The submucosal layer of each of these thicker regions is rich with blood vessels and muscle fibers, the latter known as the muscularis submucosa (Figure 11-2).225,312 These fibers, arising from the internal sphincter and from the conjoined longitudinal muscle, are important in maintaining adherence of mucosal and submucosal tissues to the underlying internal sphincter and in supporting the blood vessels of the submucosa. It is postulated that the cushions, by filling with blood during the act of defecation, protect the anal canal from injury. The muscularis submucosa and its connective tissue fibers return the anal canal lining to its initial position after the temporary downward displacement that occurs during defecation.

The anal cushions receive their blood supply primarily from the terminal branches of the superior hemorrhoidal artery (i.e., superior rectal artery) and, to a lesser extent, from branches of the middle hemorrhoidal arteries.32,225 These branches communicate with one another and with branches of the inferior hemorrhoidal arteries, which supply the lower portion of the anal canal. The superior, middle, and inferior hemorrhoidal veins, which drain blood from the
tissues of the anal canal, correspond to each of the hemorrhoidal arteries.32,126,225






FIGURE 11-3. Longitudinal section through the anal canal of a newborn. Note the well-organized, firm connective tissue fibers that support the vessels within the hemorrhoidal pad and anchor them to the internal sphincter and conjoined longitudinal muscle. (Original magnification × 16; courtesy of Peter A. Haas, MD.)

Anatomic studies by Haas and colleagues reveal that anchoring and supporting tissue deteriorates with aging, and that this phenomenon becomes apparent in the third decade of life (Figure 11-3).124 This ultimately produces venous distension, erosion, bleeding, and thrombosis (Figure 11-4).

The following are the four major theories regarding the causes of hemorrhoids.

1. Abnormal dilatation of the veins of the internal hemorrhoidal venous plexus, a network of the tributaries of the superior and middle hemorrhoidal veins43,223






FIGURE 11-4. A: Early disintegration of the connective tissue fibers. Venous sinuses in the submucosa have lost their support and are moderately distended. (Original magnification × 16.) B: Complete breakdown of the anchoring and supporting connective tissue system. Mucosa and perianal skin are separated from the internal sphincter. (Original magnification × 20; courtesy of Peter A. Haas, MD.)

2. Abnormal distension of the arteriovenous anastomoses, which are in the same location as the anal cushions126,127

3. Downward displacement or prolapse of the anal cushions77,289

4. Destruction of the anchoring connective tissue system124

Other theories have been proposed to explain abnormal distension of hemorrhoidal vessels. For example, hemorrhoids may be caused by a backflow of venous blood from transient increases in intra-abdominal pressure. It is this observation and the relative infrequency of the condition in rural Africa that caused Burkitt (see Biography, Chapter 27) and Graham-Stewart to assert the importance of crude fiber in the daily food intake to avoid straining with defecation.43 They even suggested that because Napoleon was troubled by hemorrhoids at Waterloo, the course of history could have been changed but for a few ounces of bran. However, others have called the presumption of causality between straining or constipation and hemorrhoids into question.142

Pressure exerted on the hemorrhoidal veins by a fetus explains the exacerbation of the condition in pregnant women.176,226 Engorgement of vessels may result from a defect in venous drainage, which, in turn, may be caused by failure of the internal sphincter to relax as it should during defecation. Vascular distension may be attributed to augmented arterial flow; this would account for why some with hemorrhoids feel additional discomfort after a heavy meal. More blood is delivered to the digestive system through the mesenteric artery, of which the superior hemorrhoidal artery is a branch.281 Hemorrhoids, however, are not varicose veins. They are structures that are normally present but do not produce symptoms until the fibromuscular supporting tissue above the cushions deteriorates.34 This permits the cushions to slide, engorge, prolapse, and bleed.

Hemorrhoids may be caused by more than one factor. Although some evidence suggests that hemorrhoids are familial, it is not known whether this is caused by hereditary influences (e.g., weak-walled veins, atrophied or weakened
fibrocollagenous supporting tissue) or environmental factors (e.g., family members may have similar dietary or bowel habits).

Despite a vast literature on the subject of hemorrhoids, the pathogenesis and even the function of this tissue remain controversial. Furthermore, there still exists a difference of opinion as to the definition of hemorrhoidal disease. The high prevalence of anoscopic evidence of this pathologic entity and its problematic relationship to symptoms suggests that perhaps these findings may be more a consequence of the aging process than truly a disease entity.172

Wexner and Baig opine, however, that hemorrhoidal tissue performs three main functions besides that of the veins providing drainage of blood from the area.306 These functions theoretically include the following:



  • Maintenance of continence through the filling of the vascular cushions (15% to 20% of resting anal pressures)


  • “Protection” of the sphincter mechanism by providing a cushion


  • Augmentation of the anal closure mechanism306


Portal Hypertension and Rectal Varices

What is the relationship of hemorrhoids to portal hypertension? The most common manifestation of hemorrhage in patients with liver disease is upper gastrointestinal bleeding, not lower gastrointestinal bleeding. Numerous studies have failed to demonstrate an increased incidence of hemorrhoids in this population. However, rectal varices may be seen as enlarged portal-systemic collateral veins in patients with portal hypertension.304 This collateral circulation from the portal vein passes into the systemic circulation through the middle and inferior hemorrhoidal veins. In other words, hemorrhoids and rectal varices must be recognized as two separate entities. Hosking and colleagues evaluated 100 consecutive patients with cirrhosis and noted that 44% had anorectal varices.134 Goenka and associates performed a prospective study to evaluate the prevalence of this finding in 75 individuals with known portal hypertension.115 Sixty-seven (89.3%) were demonstrated to have lower gastrointestinal varices, the rectum being the most common site. There was no correlation, however, between the presence of these varices and the severity of esophagogastric mucosal changes of portal hypertension.

It is essential to differentiate anorectal varices from bleeding hemorrhoids because the treatment is so obviously different. Endoscopic ultrasonography and magnetic resonance imaging are noninvasive modalities for diagnosis and control after treatment.91

Bleeding from varices may be treated by transanal suture technique, by transhepatic inferior mesenteric venography and embolization, or by any one of the methods of portal-systemic shunting and decompression.91,135,205,304


▶ PHYSIOLOGY

The anal sphincters of many patients with hemorrhoids demonstrate an abnormal rhythm of contraction and exert a greater force of contraction than those of asymptomatic control subjects. Whether this sphincter abnormality is a cause or an effect of hemorrhoids is not known, but it may relate to any of the hypotheses outlined. An overactive sphincter could contribute to venous congestion, expose the anal cushions to greater shearing forces, or do both by constricting the anal canal.12,125 Objective anorectal manometric studies reveal increased anal canal pressure in patients with symptomatic hemorrhoids when they are compared with control subjects.88,129,284 Sun and colleagues performed a combined manometric and ultrasonographic study of the internal anal sphincter in 20 individuals with hemorrhoids and in 20 age-matched normal controls.283 As expected, mean basal anal pressures were significantly higher in the patients with hemorrhoids than in the control patients. The mean maximal residual pressure was significantly higher in these individuals. Furthermore, direct pressure measurement in the anal canal cushions of the patients with hemorrhoids demonstrated abnormally high median pressure in comparison with that in controls. However, ultrasonographic study of the anal canal revealed a clear image of the internal sphincter that could easily be measured and was essentially no different from that of controls. The authors conclude that the absence of any significant differences in internal sphincter thickness between subjects without hemorrhoids and patients with hemorrhoids suggests that the high anal pressure observed in those with hemorrhoids is of a vascular origin.283 This elevated pressure usually returns to normal levels following hemorrhoidectomy.

The hypothesis that this condition results from chronic constipation was investigated by Gibbons and colleagues, who studied bowel habits, anal pressure profiles, and anal compliance.110 Hemorrhoids were associated with significantly longer anal high-pressure zones and significantly greater maximal resting pressures at all levels of anal distension. However, constipated women had normal pressure profiles and pressures. The study affirmed that patients with hemorrhoids are not necessarily constipated, and that chronically constipated individuals do not necessarily have hemorrhoids.

Other physiologic studies have been performed on patients with enlarged, symptomatic hemorrhoids. Various abnormalities have been reported, including increased electromyographic activity, increased external sphincter fiber density, prolonged pudendal nerve terminal motor latencies, reduced anal electrosensitivity, reduced temperature sensation, and reduced rectal compliance.306


▶ CLASSIFICATION

Hemorrhoids are classified by location (i.e., external, internal, or mixed) or by degree (i.e., first, second, third, and fourth).101 External hemorrhoids arise from the inferior hemorrhoidal plexus and are covered by modified squamous epithelium. They occur below the pectinate line and may become thrombotic and ulcerate. Internal hemorrhoids occur above the pectinate line. They may prolapse, ulcerate, bleed, and/or thrombose. They may be reducible or irreducible. Internal hemorrhoids arise from the superior hemorrhoidal plexus and are covered by mucosa. Mixed hemorrhoids (i.e., external-internal) may be prolapsed, irreducible, thrombosed, or ulcerated. They arise from the inferior and superior hemorrhoidal plexus and their anastomotic connections.

A grading system has been established for hemorrhoids, but this classification applies only to the internal variety. In first-degree hemorrhoids, the veins of the anal canal are increased in number and size, and they may bleed at the time of defecation. They do not prolapse but merely project
into the lumen. Second-degree hemorrhoids present to the outside of the anal canal during defecation but return spontaneously to within the anal canal where they remain the rest of the time. Third-degree hemorrhoids protrude outside the anal canal and require manual reduction. Fourth-degree hemorrhoids are irreducible and constantly remain in the prolapsed state.


External Hemorrhoids

Two types of hemorrhoids are found at the external anal ori-fice. One occurs predominantly in the form of dilatation and engorgement of the veins beneath the skin, and the other is manifested as a thrombosis of these veins. When the clot forms, the patient becomes aware of its presence. The degree of pain depends on the size of the clot and the relationship it bears to the anal sphincters. A large clot will cause pain, but even if a clot is small, it can be quite uncomfortable if it lies within the anal musculature. Small, thrombosed hemorrhoids rarely ulcerate and bleed.

When the process spreads into external and internal tissue surrounding hemorrhoidal veins, considerable external swelling develops as edematous fluid fills the subcutaneous area at the anal margin. This may result in acute external and internal hemorrhoidal venous thrombosis and prolapse.


External Tags or Skin Tabs

External tags or skin tabs are deformities of the skin of the external anal margin and occur as redundant folds (Figure 11-5). These may be the residual of prior thrombosed hemorrhoids that have become organized into fibrous appendages. More than likely the patient will have no antecedent history that would suggest the origin of the tags. Women, however, will often state that the tags arose during pregnancy, especially during the third trimester, persisting following delivery.18

The practice of removing hemorrhoids in three primary groups usually leaves bridges of tissue between the sites of the hemorrhoidal masses. When hemorrhoid disease is extensive, some of the diseased veins remain beneath these bridges of skin; these, too, may become fibrous skin tags after the wounds have healed (discussed later in this chapter).


Internal Hemorrhoids

The usual internal hemorrhoid is not evident on visual inspection of the anal area, especially if the patient is not bearing down. When an individual strains, a bulging mass may appear that involves all or part of the anal canal. The full extent of pressure is exerted on the anorectal outlet only during defecation or straining. Therefore, a truly reliable examination cannot be made with the patient in either the recumbent or the inverted jackknife position. Optimally, to assess the full extent of the process, examination with the patient seated on a commode is preferred.






FIGURE 11-5. Anal tag (arrow). (From Pfenninger JL, Zainea GG. Common anorectal conditions: part II. Lesions. Am Fam Physician. 2001;64(1):77-88.)


Thrombosed Hemorrhoids

Thrombosed hemorrhoids (i.e., clotted hemorrhoids) are seen most often in patients who strain while defecating or when lifting heavy objects; those who have frequent bowel actions, such as occurs with inflammatory bowel disease or malabsorption; and those who sit for long periods (e.g., long-distance truck drivers, motorcycle policemen, airline pilots, operators of heavy construction equipment). Theoretically, direct trauma to the area creates an inflammatory response, which leads to thrombosis. Additionally, the Valsalva action during straining can lead to protrusion, which, if irreducible, can precipitate this complication. Stasis of the blood flow during straining is another possible explanation.

One of the most common etiologic associations of thrombosed hemorrhoids is the maintenance of a “library” in the toilet. Virtually every patient who experiences recurrent thromboses will harbor such a home resource. Death from Fournier’s gangrene has been reported in a nonoperated patient with thrombosed hemorrhoids,30 but this must be a unique occurrence and calls into question the issue of the person being immunocompromised.


▶ DIFFERENTIAL DIAGNOSIS


Polyp, Adenoma, and Carcinoma

Sessile, polypoid masses (e.g., adenomas), and carcinomas, which are easily palpated or seen, should be readily differentiated from hemorrhoidal tissue. Internal hemorrhoids uncomplicated by thrombosis, edema, prolapse, or other factors are usually simple to diagnose. However, biopsy and microscopic study of any suspicious lesion are essential to establish the diagnosis with certainty. The old adage, “when in doubt, biopsy,” is worth remembering.


Hypertrophied Anal Papilla

A firm mass that seems to arise from an attached pedicle in the region of the dentate line is most likely to represent a hypertrophied anal papilla (Figures 11-6 and 11-7; see Figure 12-3). Anoscopy will clarify any confusion by revealing that the pedicle arises from the dentate margin and that the entire lesion is invested by skin.


Rectal Prolapse

Rectal prolapse may be either partial, involving only the mucosal layer of the rectal wall, or complete, involving the full thickness. Partial prolapse may affect either part or all of the circumference of the anal outlet. Differentiating prolapsed internal hemorrhoids from partial or mucosal prolapse may be somewhat confusing at times, but internal hemorrhoids are separated by sulci that radiate peripherally from the center of the anal outlet, whereas mucosal prolapse usually exhibits a more uniformly concentric protrusion.
Often there is some element of mucosal prolapse when a circumferential rosette of hemorrhoids becomes irreducible and thrombosed (Figure 11-8). Complete rectal prolapse, however, should be readily distinguished by its concentrically arranged mucosal folds, which are strikingly different from the radiating sulci separating prolapsed internal hemorrhoids.






FIGURE 11-6. Anoscopic view of hypertrophied anal papilla. (Courtesy of Elliot D. Prager, MD.)






FIGURE 11-7. Prolapsed hypertrophied anal papilla. The fact that the lesion is covered by skin should eliminate confusion regarding the diagnosis.






FIGURE 11-8. Prolapsed, thrombosed hemorrhoids. These are irreducible and have an element of mucosal prolapse.


▶ SIGNS AND SYMPTOMS

The most common presenting complaint of patients with hemorrhoids is bleeding. This usually occurs during or after defecation and is exacerbated by straining and by frequent bowel actions. Blood can be evident on the paper, in the toilet bowl, or both. Occasionally, blood loss may be severe enough to produce profound anemia. Pain is usually not caused by hemorrhoids, unless the hemorrhoidal vein is thrombosed, ulcerated, or gangrenous. The most common cause of anal pain is fissure. Prolapse, either with spontaneous return or requiring manual reduction, is a common presentation of hemorrhoids. The hemorrhoids may also be irreducible. Pruritus ani is often attributed to hemorrhoids, but frequently the examination fails to reveal significant hemorrhoidal disease. That is why, unfortunately, many patients who undergo operative hemorrhoidectomy for this indication discover that the pruritic symptoms persist. Pruritus ani is a condition whose treatment includes diet, bowel management, anal hygiene, and perhaps medication (see Chapter 9).

Constipation is not a symptom of hemorrhoids, but defecation may be difficult when thrombosis or gangrene produces pain. Patients tend to avoid the toilet if hemorrhoidal symptoms are exacerbated by defecation; this can lead to refusal of the urge to pass stool and can result in constipation or even obstipation.


▶ EXAMINATION

Physical examination should include proctosigmoidoscopy and anoscopy. Colonoscopy or a barium enema study must be performed in all patients who have rectal bleeding when the source is not readily apparent from these examinations. In patients older than 50 years of age, an evaluation of the colon should be performed at some time, even if hemorrhoids are the apparent cause of the patient’s symptoms. This may be deferred if an individual’s symptoms or inconvenience preclude carrying out such studies at the time of the examination.

Kluiber and Wolff at the Mayo Clinic in Rochester, Minnesota reviewed in a retrospective fashion the incidence
of hemorrhoidal bleeding that produced anemia.158 The incidence of bleeding attributed to hemorrhoids that caused anemia was found to be 0.5/100,000 population per year in Olmsted County, Minnesota from 1976 to 1990. The authors found that recovery from anemia after definitive treatment by means of hemorrhoidectomy was quite rapid. From a mean hemoglobin concentration before treatment of 9.4 g/dL, it was found that the hemoglobin concentration increased to 12.3 g/dL after 2 months. By 6 months, the mean hemoglobin concentration was 14.1 g/dL. The authors concluded that failure to recover hemoglobin concentration should prompt further or repeated evaluation for other causes of the anemia.158


▶ GENERAL PRINCIPLES OF TREATMENT


Bleeding

Bleeding, if occasional and related to straining or to diarrhea, can often be managed without specific treatment of the hemorrhoids; in other words, treatment should be directed to the cause of the bleeding. Constipation may be controlled by appropriate dietary measures, a bowel management program, stool softeners, laxatives, or a combination of these. Moesgaard and colleagues, in a prospective double-blind trial of a bulk agent (i.e., psyllium) versus a placebo in patients with bleeding and pain at defecation, noted a statistically significant difference in improvement of symptoms during a 6-week period (P < .025).192 They recommended the use of a high-fiber diet as the initial approach to the treatment of patients with symptomatic hemorrhoids. Diarrhea or frequent defecation may be managed with antidiarrheal medications and diet. Attention should also be given to improvement of anal hygiene. No less a sage than Moses Maimonides wrote in the 12th century of the importance of the nonoperative management of hemorrhoids.


The use of commercial topical creams, lotions, and suppositories is worthy of comment. These preparations include Tucks pads and cream, Anusol cream and suppositories, Balneol lotion, Prax, ProctoFoam, Calmol 4, micronized purified flavonoid fractions, and the most ubiquitous self-medication employed by the average American for “symptomatic hemorrhoids,” Preparation H. Preparation H has been alleged in the past to contain shark liver oil as well as a “skin respiratory factor” of unknown formulation that is supposed to improve wound healing. Its active ingredient today is phenylephrine hydrochloride (0.25%), a vasoconstrictor that may lead to temporary relief of burning and itching. Subramanyam and colleagues created rectal ulcers by performing rectal biopsy on volunteer subjects, determined the speed of healing with use of this product in suppository form, and compared it with a placebo.282 Although healing was quicker and more complete in the Preparation H group, the number of patients in the study was too small to achieve statistical significance. In my personal opinion, Preparation H acts essentially to soothe skin irritation and is as effective for this purpose as virtually any topical cream, lotion, or ointment. Symptoms of pruritus ani may be ameliorated, but there is no evidence that Preparation H causes hemorrhoids to shrink. There are also commercially available mechanical devices and products that are used to facilitate cleansing of the anus, such as mini-bidets, the Shower Mini, and the Water-pic.


Suppositories have been employed since the civilization of ancient Egypt for three basic reasons:



  • To promote defecation


  • To introduce medications into the body


  • To treat anorectal disease19

It is difficult to assess the actual efficacy of suppositories regarding this last condition. Because the anorectal disease is often self-limited, resolution may occur irrespective of this treatment. Furthermore, the physician cannot gainsay the psychological benefit that vigorous promotional effort of such products produces for the patient. Finally, the bulletshaped suppository often used in the treatment of anal conditions cannot exert its primary benefit within the anal canal because it must advance at least as far as the rectum. To be truly useful, Banov suggested that the suppository be hourglass or collar button shaped to maintain effective contact with the anal mucosa.22 Such a modification has yet to be produced.

If bleeding persists despite the foregoing approaches, some form of interventional treatment should be offered. If the patient believes that bleeding is caused by hemorrhoids and does not seek medical attention, or if the surgeon accepts this diagnosis without attempting to address the bleeding, a neoplasm may develop and go unrecognized. Such a situation could jeopardize the opportunity for early diagnosis and treatment.


Prolapse

Prolapsed hemorrhoids that return spontaneously or are manually reducible can usually be treated by a number of the office procedures discussed later. Attempting reduction is important because persistent prolapse predisposes the patient to thrombosis and possibly even necrosis. If the prolapse is irreducible or if an external component is present, an excisional approach may be indicated.


Pain

If pain is caused by gangrenous, ulcerated, or thrombosed hemorrhoids, a surgical procedure is the best means of treatment. If symptomatic or extensive hemorrhoids are associated with an anal fissure, hemorrhoidectomy should be considered and the fissure treated by internal anal sphincterotomy (discussed later in this chapter; see also Chapter 12). A thrombosed external hemorrhoid that produces pain is ideally managed by local excision.

The physician should consider the value of warm sitz baths in the treatment of any anal problem. Subjectively, there is little question that pain is ameliorated by the application of heat. Studies suggest there may be an explanation for how heat contributes to this response. Dodi and colleagues performed anorectal manometry on volunteers and on patients with anorectal problems (e.g., hemorrhoids, anal fissure) and determined pressure changes after immersion in warm (40° C) and cold (5° C and 23° C) water.84 In all subjects, a statistically significant decrease in resting pressure was observed after immersion in the warm water. No change was seen when patients were exposed to the colder temperatures. Because individuals with certain anal conditions often have elevated pressures, the lowering of resting anal canal pressure probably produces the observed symptomatic improvement.


▶ AMBULATORY TREATMENT

In 1993, practice parameters for ambulatory anorectal surgery were established by the Standards Task Force of the American Society of Colon and Rectal Surgeons (ASCRS) and were subsequently revised in 2003.59,279 A disclaimer was incorporated recognizing that the guidelines were not inclusive of all proper methods and did not exclude other reasonable options. Their purpose is to provide information on which decisions can be made rather than dictate a specific form of treatment.59 Cataldo and coworkers authored another set of parameters in 2005 for the management of hemorrhoids on behalf of the ASCRS.46 Fundamentally, they concluded that the ultimate judgment regarding the propriety of any specific procedure falls within the purview of the treating physician. The subject of parameters and guidelines is discussed in other chapters where such management issues are addressed.

Gastroenterologists, internists, and family practitioners have all invaded the hitherto sacrosanct domain of the surgeon through the invasive treatment of hemorrhoids. This contemporary change seems reasonable when specialized training that nonsurgeons may receive in the management of other invasive techniques is considered.265 In fact, some of the tools that are advocated for the outpatient treatment of hemorrhoids are directly marketed to nonsurgeons by mail and at meetings and conventions. I believe that it is fitting and proper for any physician to perform many of the following discussed procedures, with the proviso that they are held to the same standards of care that are demanded of surgeons. Likewise, surgeons must be held to the very same criteria for competence as are gastroenterologists when they perform colonoscopy or colonoscopy-polypectomy.


Sclerotherapy: Injection Treatment of Hemorrhoids

The first attempt to obliterate hemorrhoids by means of injection was reported in 1869 by John Morgan. Morgan used iron persulfate to treat external hemorrhoids, varicose veins, and vascular lesions. In 1871, this unique form of therapy, using phenol and other chemical agents, was introduced in the United States. It was advertised as a “painless cure for piles without surgery (probably from the Latin, pila “a ball” presumably because of the shape).”10 Because specula were not available at that time, only prolapsed hemorrhoids were selected for treatment, with a single massive injection given to slough off the hemorrhoid. In 1879, Edmund Andrews, president of the Chicago Medical Society, presented a report of 3,295 patients, collected through correspondence, who had undergone injection therapy.10 Many of the patients had been treated by itinerant charlatans and inadequately trained physicians. Numerous complications, including severe pain, sloughing, and even death (nine cases), were reported. Despite these problems, Andrews believed that cautious application of the procedure was appropriate if the following criteria were met: internal hemorrhoids were treated, the patient was kept at bed rest for at least 8 hours after the procedure, and carbolic acid in oil or glycerine was employed. At about this time, Kelsey in the United States and Edwards in England recognized that the injection method was beneficial and substituted a
weaker solution of 5% to 7.5% carbolic acid in glycerine and water; this resulted in less sloughing.86,150 Phenol (5%) in almond or vegetable oil is still the primary sclerosing agent used in Great Britain today; 3 mL is usually injected into each hemorrhoid site.




The combination of quinine and urea hydrochloride, widely used as a local anesthetic agent before the introduction of procaine, was associated with the development of fibrous tissue proliferation and sometimes sloughing at the site of injection.287 In 1913, Terrell first used this substance in the injection treatment of internal hemorrhoids, with dramatic results. He concluded that a 5% solution was satisfactory from the standpoint of effectiveness and the patient’s safety.287 The historical implications of the development of the injection method are well described by Anderson in his 1924 review.8 Sclerosants include sodium morrhuate and sodium tetradecyl sulfate (i.e., Sotradecol), but the safest continues to be phenol (5%) in
vegetable oil. A new sclerosing agent has been recently described and advocated from a group in Japan, that of aluminum potassium sulfate/tannic acid.291 In essence, all the ambulatory, nonexcisional treatments of hemorrhoids produce fibrosis of the submucosa, thereby obliterating the redundant tissue.


Indications and Contraindications

The nonprolapsing internal hemorrhoid is most amenable to injection treatment. Sometimes, a large, slightly protruding hemorrhoid can be successfully treated in this manner. Injection usually affords only temporary relief of symptoms when hemorrhoids are voluminous, contain a great deal of fibrous tissue, or require digital replacement after defecation. External hemorrhoids should never be treated by injection. Internal hemorrhoids that are infected or contain thrombi likewise should not be injected. Hemorrhoids with evidence of inflammation, such as ulceration and gangrene, are also unsuitable for injection treatment. Tags, fistulas, tumors, and anal fissures are complicating conditions that contraindicate use of the injection method.


Technique

With the patient in the semi-inverted jackknife or left lateral (i.e., Sims’) position, an anoscope is inserted and the anal canal observed (Figure 11-9). The entire region is inspected so that, ideally, a diagram of the position of the hemorrhoids can be drawn on the patient’s chart (see Figure 11-1). This is especially useful when long intervals elapse between injections. The point at which each injection is made, the amount of solution used, and the date of the injection should be recorded on the chart, or at least clearly documented in the notes. The term o’clock should not be used to describe the location of the treatment or the location of the hemorrhoids. Left lateral is left lateral whether the patient is in the prone jackknife position, in the lithotomy position, or hanging from the chandelier. The use of the word o’clock mandates that the position of the patient be described, and this is inevitably absent in most office notes and communications.

Figure 11-10 shows the syringe and long, angled needle used for sclerotherapy. Although this type of needle is very well known to head and neck surgeons, its value for the colon and rectal surgeons is not generally appreciated. More to the point, however, is the fact that standard, straight, disposable needles are a requisite for every physician’s office. Still, the longer the needle that is used (e.g., a spinal needle), the better the visualization is of the pile site.

The needle is introduced through the mucous membrane into the center of the mass of veins (Figure 11-11). No antiseptic is necessary. Care must be taken to avoid bringing the point of the needle into contact with the sensitive margin of the pectinate line. Because of the extremely remote possibility that the needle could enter the lumen of a vein and that the solution could be injected into the circulation, some surgeons withdraw the plunger of the syringe to see whether blood appears. Unlike sclerotherapy for varicose veins, this technique requires that intraluminal injection be avoided, but in actuality it is virtually impossible to perform an intravenous injection.






FIGURE 11-9. Hemorrhoids in commonly seen locations in the anal canal as viewed through the anoscope. The X indicates the planned site for injection of the left lateral pile, in an insensitive area of the anal canal.






FIGURE 11-10. Syringe and angled hemorrhoid needle used for sclerotherapy. An angled needle permits better visualization than does a straight one. Alternatively, a fine-bore hypodermic needle can be employed.

After the needle is in position, 0.5 mL of sodium morrhuate, quinine, and urea hydrochloride, or Sotradecol is slowly injected submucosally into each pile site. Alternatively, the physician may employ a 5% solution of phenol in almond, vegetable, or arachis oil. A wheal should form, indicating that the injection was given in the proper plane. No more than 3 mL should be used in total if a commercial sclerosant is being used. Conversely, with the phenol in oil solution, 3 mL may be injected into each pile site. All hemorrhoids should be injected at the first treatment session.

A modification has been adopted by some gastroenterologists, that is, injection via a catheter passed through the channel of a colonoscope. Because gastroenterologists generally do not use anoscopy, they look at the anal canal (as best they can) through a retroflexed, long instrument. This technique is mentioned only to condemn it. However, having never attempted it, I can only imagine what a cumbersome exercise it must be to endeavor to perform sclerotherapy by this technique.







FIGURE 11-11. Sclerotherapy. If a wheal is not produced, the injection is too deep, and the needle should be withdrawn. An injection that is too superficial can cause necrosis of the lining of the anal canal.




Opinion

I believe injection treatment is a reasonable option for the management of a limited number of individuals who have symptomatic hemorrhoids, especially bleeding, and in whom rubber band ligation cannot be tolerated (see next section). Because of my concern for the complication of intractable burning and discomfort from multiple injections, only one treatment of all pile sites is advisable. If symptoms persist, an alternative approach should be offered.


Rubber Ring Ligation

Ligation of hemorrhoids was first described by Hippocrates in 460 BC, writing about using thread to tie off the hemorrhoids. Tissue necrosis and fixation can also be produced by rubber ring ligation.80,81 In 1954, Blaisdell described an instrument for ligation of internal hemorrhoids as an outpatient procedure.36 In 1962, Barron modified this instrument and presented two series reporting excellent results (Figure 11-12).24,25 The results of the ligation technique have been so gratifying that this approach has replaced surgical hemorrhoidectomy for approximately 80% of my patients and is the primary office procedure for hemorrhoid management by surgeons in the United States.69






FIGURE 11-12. Original Barron hemorrhoid ligator. (Courtesy of Theodore E. Eisenstat, MD.)

Any individual who has hemorrhoids manifested by bleeding, prolapse, or both is a candidate for this procedure. No anesthetic is required, but the rubber rings must be placed on an insensitive area, usually at or just above the dentate line. Skin tags or hypertrophied anal papillae cannot be treated by ligation because the patient would experience too much discomfort.

After a small cleansing enema has been given, proctosigmoidoscopy and anoscopy are performed. If the patient’s history is suggestive of colonic disease, colonoscopy or barium enema examination is completed before any treatment of the hemorrhoids is considered. Several treatments, spaced over 3- to 4-week intervals, may be required, depending on how many pile sites must be eliminated to alleviate the symptoms. Generally, I do not recommend multiple bandings in the first treatment session. I make exceptions to this policy based on patient insistence or convenience, lack of discomfort with a prior treatment, or the necessity of the patient to travel a considerable distance for subsequent therapy. However, multiple bandings are offered or routinely employed by some physicians.


Technique

Figure 11-13 shows the McGivney ligator; I prefer this instrument to the Barron ligator. It has a much more secure shaft, which may be rotated in a 360-degree arc to facilitate placement. All nonsuction instruments have the relative disadvantage of requiring two people to perform the procedure: one to maintain the anoscope or retractor in position and the other to hold the ligator and grasping forceps. Alternatively, the physician may use a suction hemorrhoidal ligator such as the Lurz-Goltner (Figure 11-14) or the McGown ligator (Figure 11-15). These instruments draw the hemorrhoid into the cup through suction and therefore do not require a grasping forceps. Because the Lurz-Goltner ligator is a side-application device, maneuvering the ligator onto the pile is quite easy. An end-suction instrument, such as the McGown ligator, is also very simple to use, but it requires slightly more manipulation to fit onto the hemorrhoid. Conversely, the disadvantage of the side-suction ligator is that mechanical problems occasionally prevent the instrument from working optimally. Treatment with a suction ligator seems to be associated with less patient discomfort, but this is perhaps

because the drum incorporates a smaller volume of tissue. This factor, of course, is a potential disadvantage because the open-barrel device can permit incorporation of very large hemorrhoids and even redundant rectal mucosa.






FIGURE 11-13. McGivney hemorrhoid ligator. This improved model has an offset handle for better vision; working length is 7 in. There are two thumb screws: one to assemble and secure the handle on the shaft and the other to permit rotation of the shaft in a 360-degree arc to facilitate placement on to the pile. (Courtesy of Miltex Instrument Co., Lake Success, NY.)






FIGURE 11-14. Lurz-Goltner suction hemorrhoidal ligator. (Courtesy of Scanlan International, St. Paul, MN.)






FIGURE 11-15. McGown one-hand hemorrhoidal ligator. This instrument has two interchangeable heads and a thumb suction activator. (Courtesy of George P. McGown, MD.)

Figure 11-16 shows an anal canal in which the ligator and alligator forceps have been inserted. I personally prefer to use the long alligator forceps because they securely grab the tissue, but more importantly they facilitate clear visualization of the site to be treated. However, most surgeons are familiar with and use Allis forceps. This short instrument is less than ideal because one’s hand is often in the way, but the angled Allis forceps help somewhat in ameliorating this difficulty.

The most prominent hemorrhoid is treated first. It is grasped with the forceps as illustrated in Figure 11-17A and pulled up through the drum of the ligator (Figure 11-17B). If the patient experiences pain, a slightly more proximal point is selected, and this step is repeated. If the patient is still very uncomfortable, the wise course is to abandon this method of treatment and consider one of the alternatives. The tissue is drawn into the drum until it is taut, and the trigger is released, expelling two rubber rings (Figure 11-17C). Two rings are advised in case one breaks; there is considerable variation in the form and force of the rubber rings available on the market.147 When the rings are in place, the anoscope is withdrawn (Figure 11-17D). As previously mentioned, if the physician uses the suction ligator, no grasping instrument is required.






FIGURE 11-16. Rubber ring ligation. Alligator forceps are used to grasp the hemorrhoid. The forceps pass through the drum of the ligator.

The patient rarely experiences pain so severe that removal of the rings is necessary, but if required, this can be done by interposing the end of a conventional disposable suture-removal scissors or the application of a crochet hook. George McGown (Pembroke Pines, FL) has designed a cutting hook for this sole purpose (Figure 11-18). Other methods for removing the rings, such as cutting with a scalpel, tend to precipitate bleeding. Removal of the rubber rings can be accomplished with minimal trauma within a few minutes after application. However, if the patient returns at a later time because of pain, the associated edema precludes the possibility of safe removal. Adequate analgesic medication, therefore, is the preferred option. This presupposes that sepsis is not the cause (see Complications).

A more recent modification of a rubber band ligator has been developed, that of a disposable instrument, the O’Regan System (Figures 11-19 and 11-20). This device is a self- contained syringe-like instrument that eliminates the need for wall suction and tubing. As with the reusable instrument, it requires only one person, but clearly the primary advantage is that of disposability. In an era of concern for reprocessing costs, occupational health issues, and the risks of cross-contamination, this alternative has real merit. The technique is illustrated in Figure 11-21.

Armstrong has developed a modified anoscope with lateral apertures at the left lateral, right anterior, and right posterior quadrants in order to enable synchronous exposure and concomitant multiple hemorrhoidal ligations (Figures 11-22 and 11-23).14 Another innovation that facilitates the performance of multiple ligations in one sitting is a multiple-banding instrument, the ShortShot Saeed Hemorrhoidal Multi-Band Ligator (Figure 11-24—Cook Medical, Bloom-ington, IN). This is a fully disposable suction ligating device that permits up to four bandings with the one instrument. A similar product called Haemoband is also available preloaded with four rubber bands and a multiaction handle that fires and reloads the bands (Haemoband Surgical, Belfast, Northern Ireland). And speaking of loading the bands, this may be an exercise in frustration as the rings fly across the room when one uses the conventional applicator to set the ring onto the barrel. A simple attachment, the “magic loading cone,” (George Percy McGown, Brooklyn, NY) has been developed to address this concern (Figure 11-25).


Care Following Treatment

Bowel actions should be maintained without the patient straining. Appropriate dietary instructions, bulk agents, or a stool softener should be considered. The individual should be forewarned that some bleeding may be noted initially and again when the rubber rings are dislodged.

One of the major advantages of rubber ring ligation is its convenience. The patient need not return at fixed intervals for further ligation. Nothing is lost if one chooses to return 3 months, 6 months, or even years later. Other areas subsequently can be treated equally well despite such delays. However, the patient should realize that if symptoms are


not completely relieved, it is probably because other hemorrhoidal areas need to be addressed, assuming of course that there is no other explanation for the bleeding. Conversely, if the individual experiences complete relief after the initial ligation, there is no need to continue therapy. Under these circumstances, the patient is advised to return if and when symptoms recur.






FIGURE 11-17. Rubber ring ligation. A,B: The hemorrhoid is grasped and firmly tethered. C: The tissue is drawn into the drum. If the patient tolerates the maneuver, ligation can be performed with minimal or no discomfort. D: The two rubber rings are released.






FIGURE 11-18. Rubber band cutter (model 30020). (Courtesy of George P. McGown, MD.)






FIGURE 11-19. O’Regan Disposable Banding System. This includes (from top): suction-ligating syringe with band pusher, rubber band applicator, and slotted anoscope with obturator. (Courtesy of CRH Medical Corporation Vancouver, British Columbia, Canada.)






FIGURE 11-20. O’Regan Disposable Banding System. Rubber band applicator with rings. (Courtesy of Medsurge Medical Products Corp., North Vancouver, Canada.)






FIGURE 11-21. Technique of ligation using the O’Regan Ligating System. Ligator positioned through lateral slot of anoscope (A). Plunger withdrawn and locked in first position to effect initial suction (continued)






FIGURE 11-21. (continued) (B); plunger withdrawn to second position to create maximum suction (continued)



Error in Diagnosis

A theoretical disadvantage of rubber ring ligation and all the nonexcisional methods for treating hemorrhoids is that no
pathologic specimen is obtained. Invasive epidermoid carcinoma or other tumor occasionally has been reported in an excised hemorrhoid specimen (perhaps in less than l% of cases). In the rare instance of its occurrence, such a lesion will obviously be missed. However, the physician should not condemn the procedure and limit its application because of an apparently reasonable, albeit truly unwarranted, concern. One must be mindful of the fact that the standard of care no longer requires submission of a pathologic specimen even when a surgical hemorrhoidectomy is performed. Cataldo and MacKeigan reviewed more than 20,000 hemorrhoid operations over a 20-year period.47 Only one example of an unsuspected carcinoma of the anus was diagnosed solely by microscopic analysis. The authors conclude that selective rather than routine pathologic evaluation of hemorrhoidec-tomy specimens should be the policy. I concur. As stated previously, however, if there is any doubt or concern about the presence of a lesion or the possibility of an underlying malignancy, biopsy should be performed.




Comment

Rubber ring ligation is an excellent alternative to surgical hemorrhoidectomy for most patients. However, one must understand that the results may not equal those that can be achieved by surgery. Nevertheless, because of the limited morbidity, adequate long-term effectiveness, convenience, and patient acceptability, I recommend this procedure as the primary outpatient therapy for bleeding and for reducible hemorrhoid prolapse. However, in the presence of an external component, hypertrophied anal papilla, associated fissure, or large (grade IV) hemorrhoids, surgical treatment is unquestionably more effective.


Cryosurgery

Cryosurgery is based on the concept of cellular destruction through rapid freezing followed by rapid thawing. The treatment of hemorrhoids by this technique had been advocated by Lewis and colleagues and by others as painless, effective, and especially recommended for those patients who are medically unable to undergo general anesthesia.64,111,171,307,309 The principle of cryosurgery is well described in these cited articles.


Technique

The following protocol has been recommended by most authors:



  • The procedure is explained, and the patient is advised of the probability of profuse drainage and considerable swelling. If necessary, an intravenous injection of a sedative is administered, and a local anesthetic is usually recommended.


  • The patient is placed in either the left lateral or prone jackknife position. The surgeon’s fingers, a plastic vaginal speculum, or a modified plastic proctoscope are used to isolate one primary hemorrhoidal plexus at a time. A metal instrument is not employed because it would conduct cold, and a water-soluble jelly is used to achieve good contact between the cryoprobe and the hemorrhoid.


  • The cryoprobe is applied. The tissue freezes around the tip. Thus, the distance between the tip and the outer border of the ice ball equals the depth of the ice ball. This allows the surgeon to determine visually how much tissue is being destroyed. Only that tissue encompassed within the ice ball allegedly will undergo irreversible cellular destruction. Changes at the boundary between the ice ball and normal tissue are reversible, and theoretically, no true cellular destruction occurs.

Theoretically, both internal and external hemorrhoids can be treated in one operation. The tip of the cryoprobe is placed in the center of either the internal or external hemorrhoidal plexus and remains there until the tissue to be destroyed is enveloped by the ice ball (Figure 11-26). The period of freezing varies according to the cooling power of the probe. With a liquid nitrogen probe at 196° C or a liquid nitrous oxide probe at —89° C, the application time is about 2 minutes per hemorrhoid area. The greater the vascularity of the hemorrhoid, the greater is the cooling power required to freeze it. Therefore, the liquid nitrogen probe is more effective for large hemorrhoids than is the nitrous oxide probe. When an adequate amount of tissue has been frozen, the probe is switched off, rewarmed, and detached from the hemorrhoid; each plexus in turn is treated the same way.


Care Following Treatment

Considerable swelling and edema occur within 24 hours of the procedure, but generally these effects do not interfere with normal bowel function and elimination. Drainage usually
starts several hours later; it is fairly heavy for the first 3 to 4 days but decreases during the following 2 to 3 weeks. Patients are instructed to use some form of sterile pad and to change the pad several times a day during the first 3 to 4 days.






FIGURE 11-26. Cryosurgical destruction. The cryoprobe is applied to a combined internal-external hemorrhoid.

Two to 3 hours after freezing, the tissue becomes swollen and erythematous. Within 72 hours, pale spots appear on the surface, and these coalesce to form irregular patches by the fourth day. By the fifth or sixth day, the whole hemorrhoidal area is pale; black, gangrenous areas may then appear. Necrosis is usually complete between postoperative days 7 and 9. Thereafter, the hemorrhoid begins to disintegrate and should come away completely by the 18th postoperative day, leaving, it is hoped, a normal-appearing anus.



Comment

When cryosurgical hemorrhoidectomy was first introduced, it was claimed to be painless, did not require an anesthetic, and was effective for external tags and hypertrophied papillae. Since that time, reports have confirmed that it is not painless—local or general anesthetic has been suggested by almost all observers—and that it is less effective, and in many ways ineffective, for the treatment of hypertrophied anal papillae and skin tags. For internal hemorrhoids, rubber ring ligation is demonstrably superior to cryosurgery. It is quicker and cheaper and requires no anesthetic. For the external component or hypertrophied papilla, excision after local infiltration rapidly removes the offending tissue. Complete healing takes place in 7 to 10 days. Cryosurgical destruction requires the use of relatively expensive equipment and is time consuming to perform—some authors recommend hospitalization or an outpatient setting. In addition, it results in profuse drainage and sometimes delayed healing. True, the initial postanesthetic pain may be somewhat less than with surgical hemorrhoidectomy, but this pain usually can be controlled with a mild analgesic (see later).


In my opinion, cryosurgery adds nothing to the treatment of hemorrhoids that is not available by other means at lower cost, at greater efficiency, with fewer complications, and with as good if not better results. Others must agree, because I have not been able to identify more recent references in peer-reviewed publications with this technique since the second edition of this text (1989). In fact, in a poll of members of the ASCRS at a national meeting in the year 2000, no individual was performing cryosurgical destruction of hemorrhoids at that time. Moreover, the genuine fear of causing severe tissue injury, scarring, deformity, and incontinence, as well as the plethora of lawsuits, have destroyed all semblance of enthusiasm within the profession.


Infrared Coagulation

In 1979, Neiger described a method for the treatment of hemorrhoids using infrared coagulation.200 Leicester and associates reported a prospective, randomized trial using this technique and found that it compared favorably with injection sclerotherapy and rubber ring ligation, except perhaps for the management of prolapse.168,169

The apparatus produces infrared radiation and is focused by a photoconductor (Figure 11-27). It was developed as an offshoot of laser technology, but it is not a laser (see Laser Surgery). Infrared light penetrates the tissue to a predetermined level at the speed of light and is converted to heat.210 The amount of tissue destruction can be regulated by direct visualization and by adjusting the pulse setting on the instrument.


Technique

The procedure is relatively simple and easy to learn. A sterile, disposable sheath is placed over the light guide. An anoscope is inserted, and the light guide is placed in direct contact with the mucosa at the base of the hemorrhoid (Figure 11-28). A 1- or 1.5-second pulse is usually used in the treatment of hemorrhoids, with the probe applied at the same site where the physician would normally inject. The radiation causes protein coagulation 3 mm wide and 3 mm deep. The manufacturer recommends the application of three to five pulses.219 Following coagulation, the tissue appears as a whitish, circular eschar. Over the following week, a dark eschar forms, ultimately leaving a slightly puckered, pink to red scar.210 The physician may elect to treat one area at a time or to ablate all evident hemorrhoids. Additional treatments may be repeated every 2 or 3 weeks if necessary. Although some authors can perform the procedure without a local anesthetic, particularly if the coagulator is applied above the dentate line, infiltrating the area with 0.5% bupivacaine (Marcaine) is often recommended. Of course, if an external tag is to be treated, a local anesthetic is required.






FIGURE 11-27. Infrared coagulator: power supply unit and applicator. (Courtesy of Redfield Corporation, Montvale, NJ.)






FIGURE 11-28. Application of the infrared coagulator probe to the hemorrhoid. (Courtesy of Digestive Disorders Associates, Annapolis, MD.)



Comment

I believe that infrared coagulation has rung the death knell for cryosurgery; the most outspoken enthusiasts for cryosurgery seem now to prefer photocoagulation. It is as if the option of freezing hemorrhoids is no longer available (see earlier comments), if the apparent void in journal articles is any indication. However, the equipment is expensive, and rubber rings are not. Moreover, even the manufacturer concurs that the technique is not recommended for the management of prolapsing hemorrhoids.

My own approach is to use infrared coagulation as the preferred alternative to injection therapy. Symptomatic hemorrhoids that are too small to band are optimally treated by this technique. I also occasionally offer it to patients for treatment of the external component (with a local anesthetic) when I do not wish to employ excisional therapy.


Ultroid

The Ultroid device is another tool for the ambulatory treatment of hemorrhoids. It is a monopolar, low-voltage instrument that includes a generator unit, an attachable handle, single-use sterile probes, a grounding pad, and a nonconductive anoscope (Figure 11-29). Some have commented that it is confusing to have two electrodes, yet the instrument is not bipolar.81 The Ultroid Hemorrhoid Management System delivers, according to the manufacturer, Ultroid Technologies (Tampa, FL), a very low direct current to the hemorrhoid, causing a reaction in the structure. Although some people experience immediate relief, the hemorrhoid shrinks over the next 7 to 10 days. There is no need for bowel preparation, anesthesia, or surgery. And there is allegedly no healing time because there is no cutting or tissue destruction: one apparently leaves the physician’s office and resumes normal activities. The company contends that the mode of action of this device is not thermal but rather is a consequence of the production of sodium hydroxide at the negative electrode. It strains credulity for me that this is the mechanism, but as I am not a biophysicist, I can merely offer healthy skepticism. The fact is that I have no experience with this device.






FIGURE 11-29. This Ultroid device with a generator source and handle uses disposable probes. (Courtesy of Ultroid Technologies, Inc., Tampa, FL.)


Technique

By means of the nonconductive anoscope (Figure 11-30), the probe tip is placed at the apex of the hemorrhoid, above the dentate line. The amperage is slowly increased to the level of patient tolerance as the probe is inserted into the hemorrhoid. The usual treatment range is 6 to 16 mA. The probe is left in position for approximately 10 minutes, or until the “popping” sounds cease. Once the treatment has been completed, the current is gradually decreased to zero. Failure to do this will result in pain on removal of the probe. One site is usually treated per session, usually because of time constraints
and the fact that the patient does not usually appreciate a prolonged anoscopy.






FIGURE 11-30. Nonconductive anoscope. (Courtesy of Ultroid Technologies, Inc., Tampa, FL.)



Comment

There is a paucity of articles in the surgical literature on the Ultroid device, perhaps because the device is also marketed to family practitioners and gastroenterologists. Personally, I am skeptical that this approach will be high on the list of options for surgeons in the ambulatory management of hemorrhoids. Most surgeons have neither the time nor the patience to stand around holding the probe for up to 10 minutes. Given the choice, it is unlikely that patients themselves will elect to have a “poker” in their anus for any more time than is necessary to get the job done.


Bipolar Diathermy

Like photocoagulation, BICAP is a method of treating hemorrhoids that is designed to produce tissue destruction, ulceration, and fibrosis by the local application of heat.81 The diathermy system was originally developed for the treatment of bleeding peptic ulcers and was later employed to palliate esophageal and rectal carcinomas.80 The disposable Circon ACMI BICAP hemorrhoid probe uses bipolar RF current to coagulate the blood vessels (Figure 11-31). The principle of action is the passage of current through tissue as it travels between adjacent electrodes located at the tip of the probe. The espoused, perhaps theoretical, advantage of this technique over other methods such as monopolar coagulation, laser coagulation, or photocoagulation is that the BICAP device maintains a short current path, thereby producing a limited depth of penetration even after multiple applications.


Technique

With the use of a disposable, nonconductive anoscope, the side of the probe tip is applied directly and firmly to the hemorrhoid above the dentate line.80 The generator is used on the infinity setting and is activated by a foot switch. A white coagulum approximately 3 mm deep is produced. All hemorrhoids are treated in one session, and no local anesthetic is usually required.

Jul 17, 2016 | Posted by in GASTROENTEROLOGY | Comments Off on Hemorrhoids

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