Audio-Digest Foundation: urology

Main Written Summaries Listing | Urology: 2005 Listings
Audio-Digest FoundationUrology


Volume 28, Issue 11
November 1, 2005

The following is an abstracted summary, not a verbatim transcript, of the lectures/discussions on this audio program. If, after reviewing this written summary, you would like to hear the contents and/or earn CME/CE credit, simply visit the Audio-Digest Foundation website

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CONCEPTS IN CANCER CARE

POSTPROSTATECTOMY URINARY INCONTINENCE —Elise De, MD, Assistant Professor of Surgery, Urological Institute of Northeastern New York, Albany
Introduction: types of male incontinence—intrinsic sphincteric deficiency (ISD; usually idiopathic); urge urinary incontinence; mixed incontinence; incontinence rates following—radical retropubic prostatectomy (RRP) 2% to 78% (depending on definition of incontinence); transurethral resection of prostate (TURP) 1% to 2% (associated with compromised internal sphincter and damaged external urethral sphincter); evaluation—history; physical examination; when planning surgery, perform urodynamic evaluation, ie, cystometrography; uroflometry
Options for managing ISD: conservative options—should be discussed during patient consultation; improve quality of life in men waiting for definitive therapy; candidates with—mild incontinence (ie, 1-3 pads per day) can receive bulbourethral sling or bulking agents; severe incontinence can receive AMS 800 artificial urinary sphincter (AUS), double- cuff, or transcorporeal sphincters
Injection therapy: collagen—achieves 20% overall postprostatectomy dry rate at 12 mo; indicated in men who have minimal incontinence, refuse other forms of surgery, require preoperative temporizing measure, or are too ill for surgery; Macroplastique—silicone polymer; in Europe, equalled efficacy of AUS for minimal incontinence; Durasphere— implantable beds; difficult to use
Male bulbourethral sling: candidates have—mild incontinence; failed injection therapy; normal detrusor compliance or function; areflexia; commitment to performing clean intermittent postoperative catheterization; limited manual or mental capacity; refused implantation of AMS 800 AUS; poor candidates have—severe urinary incontinence; undergone prior AUS implantation or intense irradiation; absolute contraindications—severe osteoporosis; infectious complications; osteomyelitis; obstruction; standard male sling—placement similar to that used with female pubovaginal sling; approach more difficult in men with previous hematoma, lymphocele, or anastomotic leak; associated with 56% dry rate and 27% revision rate
InVance sling: bone-anchored; provides compression and partial outlet obstruction; achieves continence rate of 75% to 85%; to assess outcome—check retrograde leak point pressure with perfusion sphincterometry; use cough test in patients under spinal anesthesia
AMS 800 AUS: improvements—transition to narrow cuff backing reduced erosion and reoperation rates; kink-resistant tubing; better connection system; sterile technique—avoids catastrophic infection; mandates 10-min scrub for patient, 5-min scrub for staff, and double gloving
Standard 2-incision (perineal and inguinal) technique: retract exposed urethra and bulbocavernosus muscle laterally; to avoid perforating urethra at septum, carefully dissect between urethra and corporal body; use 2-cm aperture to facilitate visualization and fitting of measurement tape; dissect toward bulb; reservoir placement—inguinal or midline incision (midline preferred in men who have undergone prior surgery); requires use of isotonic filling solutions (injectable saline reduces error risk); pass tubing; place pump, make connections, and deactivate device; place 12- to 14-F Foley catheter for 24 hr; patient must spend 3 to 6 wk at home before device activated
Single transverse penoscrotal incision technique: place 3- to 4-cm incision below penoscrotal junction; retract scrotum to reach urethral bulb; theoretically, approach eliminates discomfort, facilitates visualization of interface between urethra and corpora, and facilitates pump placement in obese men; points—if patient had anastomotic leak or hematoma postprostatectomy, be prepared to perform double-incision technique; trim excess tubing to decrease bulk; small scrotum or inflexible scrotal wall complicates exposure
Observations: results—approach provides better results than sling procedure for severe incontinence; special cases— perform cystoscopy preoperatively; with contracture, perform transurethral resection (TUR) and place AUS 3 mo later with confirmation of stability; with refractory stricture, place UroLume device; when other options fail, close bladder neck with or without augmentation; bottom line—patient satisfaction uniformly good
Problems: early postoperative complications include—urinary retention (managed with brief catheterization); scrotal hematoma (managed conservatively); scrotal urinoma (surgery necessary to find unrecognized urethral injury); long-term complications—erosion; persistent incontinence or infection; pump migration and leaks; erosion—risk factors include previous surgery, radiation exposure, prior erosion, steroid use, and urethral catheterization; with single-cuff system, infection risk may require removing entire device (surgeon can reimplant device later); with double-cuff system, if 1 cuff erodes, convert implant to single-cuff system; role of radiation in erosion debatable; persistent incontinence following initial placement—may indicate insufficient urethral compression; to manage, downsize cuff or place tandem cuffs; additional factors—with detrusor overactivity, evaluate situation before operating to alter device; if incontinence recurs after period of successful control, patient may have accidentally deactivated device and requires reeducation on proper use; manage fluid loss from system by exploration and replacement; clogged resistor or cuff atrophy requires surgical repair; bottom line—with double-cuff technique, patient satisfaction remains high
Infection: mandates removal of device; conservatively, device can be replaced at 3 to 6 mo; Mulcahy salvage protocol—rate of salvage 87%; uses 7-step antibiotic irrigation procedure; requires all drapes and instruments be changed; once new device in place, close without drains and administer long-term antibiotic therapy
Transcorporeal AUS placement: indications include poor coaptation of proximal cuff at bulb, prior erosion, and urethral damage at optimal cuff site; points—84% of men require 1 pad per day at 17 mo; penile prosthesis cannot be used to manage erectile dysfunction
BLADDER CANCER MANAGEMENT: HIGHLIGHTS FROM THE SOCIÉTÉ INTERNATIONALE D’UROLOGIE (SIU) CONSENSUS CONFERENCE Mark Soloway, MD, Professor and Chairman, Department of Urology, University of Miami School of Medicine, Miami
Diagnosis, staging, and epidemiology: bladder cancer more common in men; risk factors—cigarette smoking; occupation; chronic urinary tract infection (UTI); schistosomiasis; radiation exposure; point—relatively stable mortality rates mandate investigation into risk and screening; recommended grading system—does not categorize papilloma as cancer; classifies tumors as low-grade or high-grade; must be used by pathologist; make sure pathology report—incorporates information pertinent to grading system; indicates whether pathologic specimen contains muscle tissue; upper tract evaluation— unnecessary in patients with low-grade Ta disease; periodic monitoring recommended for high-grade tumors; diagnosis— fluorescent cystoscopy (data insufficient to recommend use); TUR (minimally invasive and underutilized); bladder perforation (prognosis poor, especially when located intraperitoneally); bladder perforations—unacceptable; adversely affect prognosis; avoid bladder perforations by—not overdistending bladder; being careful when in diverticulum; assessing obturator reflex; not going deep when managing Ta lesion; reducing cautery current during surgery; staging—do not subdivide T2a and T2b, and T3a and T3b disease; with transitional cell carcinoma (TCC) of prostate, prognostic differences mandate subdividing disease in urethra, ducts, and stroma; with high-grade tumor—improve staging accuracy with second TUR at 1 to 4 wk after initial resection
Markers: early detection in high-risk population—helps prevent progression; may reduce cost; depends on developing markers with high positive and negative predictive value, ie, ideal marker simple, reliable, and accurate; hematuria— inexpensive and sensitive marker; poor specificity limits screening value; urinary cytology—ideal for detecting high- grade disease; bladder wash provides better yield than voided cytology; markers approved by Food and Drug Administration (FDA)—blood tumor antigen (BTA); urinary nuclear matrix protein 22 (NMP22); UroVysion test; points— patients with Ta disease do not require cystoscopic evaluation every 3 mo; markers more sensitive than cytology for low- grade disease, less sensitive than cytology for high-grade disease
Low-grade Ta disease: identifiable on endoscopy; when managing low-grade disease—office cauterization with fulguration indicated when cytology negative and Ta disease suspected; routine upper tract imaging and mucosal biopsy unnecessary; administer intravesical chemotherapy (ie, mitomycin and epirubicin) post-TUR to decrease risk for additional tumor (approach contraindicated if bladder perforated); bacillus Calmette-Guérin (BCG) contraindicated
High-grade Ta disease and carcinoma in situ (CIS): associated with 20% risk for progression; determining timing and selection of treatment difficult; errors in clinical judgment may kill patient; cystectomy—at diagnosis, associated with 95% cure rate; postponed too long, reduces cure rate by 30% to 40%; indicated for patient with high-grade disease following early failed BCG therapy; intravesical chemotherapy—mandatory in recovery room after TUR and for patient with solitary high-grade Ta lesion; once pathology report confirms presence of high-grade Ta or T1 disease or CIS, perform second TUR and administer BCG; CIS—initial treatment involves cystectomy vs continued BCG therapy and monitoring; if management fails, perform cystectomy
T1 disease: pathologic specimen must contain muscle tissue; continuous flow resection critical for performing good endoscopy; emphasize importance of complete TUR and re-resection 4 wk later; administer single-dose intravesical chemotherapy after TUR; maintenance BCG—standard approach; duration unclear; upper tract monitoring—necessary; intervals unclear; pathology report—helps quantify and substage T1 disease; indicates depth of tumor penetration into lamina propria; patients with high-risk T1 disease—require cystectomy; do not get BCG or second TUR
Muscle-invasive disease: improvement in survival rates minimal
T2 disease: treatment selection difficult; problem areas—delayed treatment adversely affects survival, ie, many patients with muscle-invasive cancer have treatment delayed due to misdiagnosis; many older patients with muscle-invasive bladder cancer never offered cystectomy, ie, data suggest only 5% of patients 75 to 80 yr of age in United States undergo cystectomy; survival rates have remained in 30% to 40% range over past 30 yr
Management: chemotherapy provides modest improvement in outcomes; surgery—perioperative mortality <3% for major medical centers; need for more extensive lymph node dissection under investigation; prostate-sparing surgery not considered standard practice; partial cystectomy infrequently used; upper tract monitoring—high-risk tumors cannot be identified at right time, regardless of frequency of monitoring program
Urinary diversion: factors to consider when selecting approach include patient’s age, tumor status, comorbidity, motivation, and renal function; contraindications to continent diversion—poor patient motivation; poor potential for maintaining intermittent catheterization; neobladder—free refluxing neobladder preferred option, ie, if afferent limb relieves pressure on upper tract, err on side of having no obstruction; potential complications manageable; ileum bowel segment of choice for forming orthotopic neobladder; points—most patients who wake up at night are continent; in most cases, nocturnal incontinence cannot be altered by neobladder; hypercontinence—can occur; not worst problem to have, ie, almost everyone adapts well to clean intermittent catheterization (CIC) to avoid appliance; ileal conduit—preferred in older individuals; complication rate equals that of orthotopic neobladder
Transitional cell cancer (TCC) of prostate: high-grade tumor at bladder neck or multifocal CIS—biopsy prostatic urethra; differentiate disease going from bladder to prostate from disease starting in urothelium and entering ducts and stroma; options—invasion into prostatic substance (initiate chemotherapy; survival poor with cystectomy alone); stromal invasion (treat with cystoprostatectomy and possibly chemotherapy); noninvasive CIS of urothelium (consider TUR followed by BCG); invasion into ducts (cystoprostatectomy preferred; TUR and BCG possible); caveat—data on proper management of TCC of prostatic urothelium limited: neoadjuvant chemotherapy—data suggest cisplatin-based chemotherapy administered prior to cystectomy provides modest benefit and decreases morbidity; should be considered in anyone with high-risk disease (recommendation based on dramatic increase in pT0 rate seen with neoadjuvant chemotherapy)
Bladder preservation: benefits quality of life; problems—tendency to understage bladder cancer; lack of randomized trials; factors favoring bladder preservation—T2 disease (as opposed to T3 or T4 disease); small tumor; no hydronephrosis; options—combination of chemotherapy and radiation therapy acceptable; evidence supporting use of neoadjuvant chemotherapy inadequate
Metastatic disease: points—combination of gemcitabine (Gemzar) and cisplatin probably equals efficacy of methotrexate, vinblastine, doxorubicin (Adriamycin), and cisplatin (MVAC) with less toxicity; high-dose MVAC may be better than standard MVAC; carboplatin less effective than cisplatin for treating patients who have urothelial cancer; recommendation—if patient has good renal function, encourage medical oncologist to avoid carboplatin and administer cisplatin with gemcitabine or in MVAC
Radiation therapy: acceptable when used concurrently with chemotherapy and thorough TUR to treat select patients; not contraindicated by CIS; approach in high-risk patients considered candidates for cystectomy—initiate neoadjuvant chemotherapy, reevaluate situation, and administer full-dose radiation therapy with cisplatin; survival rates equal those seen with radical cystectomy
Additional concerns: squamous cell carcinoma—chemotherapy role minor; perform cystectomy and urinary diversion; adenocarcinoma—approach approximates that used for squamous cell carcinoma; partial cystectomy acceptable for urachal adenocarcinoma; small cell carcinoma—incidence increasing; if diagnosed on TUR, treat with chemotherapy followed by cystectomy or radiation

Educational Objectives

The goal of this program is to educate the listener about current concepts in the management of urologic cancer. After hearing and assimilating this program, the clinician will be better able to:
1. Assess current alternatives for managing postprostatectomy incontinence.
2. Perform successful artificial urinary sphincter implantation and bulbourethral sling surgery to control postprostatectomy incontinence.
3. Review current Société Internationale d’Urologie (SIU) consensus conference guidelines for managing bladder cancer.
4. Discuss SIU recommendations for the diagnosis and staging of bladder cancer.
5. Use SIU guidelines to implement appropriate treatment protocols for all stages of bladder cancer.

Discussed on This Program

BCG, intravesical (Bacillus Calmette-Guérin) [Pacis, TheraCys, TICE BCG]
Carboplatin [Paraplatin]
Cisplatin (CDDP) [Platinol-AQ]
Doxorubicin [Adriamycin PFS, Adriamycin RDF]
Epirubicin HCl [Ellence]
Gemcitabine HCl [Gemzar]
Methotrexate (amethopterin; MTX) [Methotrexate LPF, Rheumatrex Dose Pack, Trexall]
Mitomycin (mitomycin-C; MTC) [Mutamycin]
Vinblastine sulfate (VLB) [Velban]

Suggested Reading

Anger JT et al: Anastomotic contracture and incontinence after radical prostatectomy: a graded approach to management. J Urol 173:1143, 2005; Fassi-Fehri H et al: Treatment of postoperative male urinary incontinence by InVance prosthesis: preliminary results. Prog Urol 14:1171, 2004; Gousse AE et al: Two-stage management of severe postprostatectomy bladder neck contracture associated with stress incontinence. Urology 65:316, 2005; Manoharan M, Soloway MS: Optimal management of the T1G3 bladder cancer. Urol Clin North Am 32:133, 2005; Nieder AM et al: Cystoprostatectomy and orthotopic ileal neobladder reconstruction or management of bacille Calmette Guerin-induced bladder contractures. Urology 65:909, 2005; Petrou SP: Treatment of postprostatectomy incontinence: is the bulbourethral sling a viable alternative to the artificial urinary sphincter? Curr Urol Rep 3:360, 2002; Schaal CH et al: Longitudinal urethral sling with prepubic and retropubic fixation for male urinary incontinence. Int Braz J Urol 30:307, 2004; Soloway MS: Where are the ‘poster boys’ for bladder cancer? BJU 91:769, 2003;

Faculty Disclosure

In adherence to ACCME guidelines, the Audio-Digest Foundation requests all lecturers to disclose any significant financial relationship with the manufacturer or provider of any commercial product or service discussed. For this issue, the faculty reported nothing to disclose.


Dr. De gave her scientific presentation at Current Concepts in Men’s Health 2005, presented August 12 to 14, 2005 in Bolton Landing, New York, by Albany Medical College and the Urological Institute of Northeastern New York; Dr. Soloway gave his scientific presentation at the 60th Annual Meeting of the Canadian Urological Association held June 26 to 29, 2005 in Ottawa, Canada. The Audio-Digest Foundation thanks the speakers and the sponsors for their cooperation in the production of this program.


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