Patient Selection for Urinary Diversion


Diversion type

Advantages

Disadvantages

All diversions

Drain kidneys effectively

Made out of own bowel tissue

Mucous in urine

Most are colonized with bacteria

Risk of symptomatic infections

Risk of kidney stones

Ureteral strictures

Metabolic complications

Ileal conduit

Simplest, quickest to perform

Familiar to most surgeons

Easiest for others to care for

Only option if kidney function is poor

Must wear a bag on skin at all times

High risk of parastomal hernia

Problems with appliance fit, urine leak, skin irritation

Stomal stenosis

Orthotopic neobladder

Only slightly longer surgery than conduit

Void per urethra, most “natural”

No external appliance or stoma

Initial significant incontinence, may not resolve

 Nighttime incontinence common long-term

 Most patients wear pads at least some of the time

May require self-catheterization (men 10%, women >50%)

Neobladder stones (uncommon)

Continent cutaneous diversion “Indiana pouch”

Dry immediately

May be able to sleep through night

No external appliance

Significantly longer surgery

Have to catheterize to empty

Risk of stoma problems – difficulty catheterizing or leak, about 20%

Many urologists and ER physicians don’t know how to manage complications

Stones in reservoir



Second, patients and their families need help to identify their own priorities and tolerance for the disadvantage of each type of diversion. This is an iterative process as they understand the pros and cons and try to prioritize those for themselves. This may require several discussions over time. Providing written materials, encouraging patients to talk to others who have been through the various procedures, and encouraging open family discussions are all helpful. It is also useful to have a trained physician extender who can help answering specific questions and guide the patient through the process.

Finally, it is important that we physicians recognize how much our own bias can influence the decision. Physicians are trained to be persuasive, and it is relatively easy to influence patients’ decisions just based on how the options are presented to them and the inflections of the advice delivered. There are marked differences in the rate of continent diversion at various institutions, even at those with specialists who have extensive experience in continent diversion [33]. Nationally less than 20% of patients undergo continent diversion, compared to 60–75% at some high-volume centers [34]. One center reported a marked decrease in continent diversion over a 5-year timespan, almost certainly reflecting physician bias rather than any radical difference in their patient population [35]. Many urologists today have had little exposure to continent diversion in training or after and may not want to refer the patient out to a center where that option may be offered [36]. There is also a significant financial disincentive for surgeons to perform a procedure that takes extra time when there is not a concomitant increase in reimbursement [37].


Conclusions

Continent urinary diversion is not new or experimental and should be considered as a potential option for each patient undergoing cystectomy and urinary diversion. There are few absolute contraindications which only exclude a minority of patients undergoing cystectomy today. The ultimate decision about the best diversion for a specific patient requires consideration of both cancer-related and patient-related factors and requires truly shared decision-making between patients, their physicians, and their families.




References



1.

Hautmann RE, Paiss T. Does the option of the ileal neobladder stimulate patient and physician decision toward earlier cystectomy? J Urol. 1998;159:1845.CrossRefPubMed


2.

Gerharz EW, Mansson A, Hunt S, Skinner EC. Quality of life after cystectomy and urinary diversion: an evidence based analysis. J Urol. 2005;174:1729–36.CrossRefPubMed


3.

Ahmadi H, Lee CT. Health-related quality of life with urinary diversion. Curr Opin Urol. 2015;25(6):562–9.CrossRefPubMed


4.

Hautmann RE, Abol-Enein H, Davidsson T, et al. International Consultation on Urologic Disease – European Association of Urology Consultation on Bladder Cancer 2012. Eur Urol. 2013;63(1):67–80.CrossRefPubMed


5.

Winters B, Cai J, Daneshmand S. Short-term change in renal function in patients undergoing continent versus non-continent urinary diversions. UroToday Int J. 2013;6(2):art 20.


6.

Skinner EC, Fairey AS, Groshen S, Daneshmand S, Cai J, Miranda G, Skinner DG. Randomized trial of Studer Pouch versus T-pouch orthotopic ileal neobladder in bladder cancer patients. J Urol. 2015;194(3):433–40.CrossRefPubMed

Oct 20, 2017 | Posted by in UROLOGY | Comments Off on Patient Selection for Urinary Diversion

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