The purpose of this review is to identify clinical risk factors for prostate cancer and to assess the utility and limitations of our current tools for prostate cancer screening. Prostate-specific antigen is the single most important factor for identifying men at increased risk of prostate cancer but is best assessed in the context of other clinical factors; increasing age, race, and family history are well-established risk factors for the diagnosis of prostate cancer. In addition to clinical risk calculators, novel tools such as multiparametric imaging, serum or urinary biomarkers, and genetic profiling show promise in improving prostate cancer diagnosis and characterization. Optimal use of existing and future tools will help alleviate the problems of overdiagnosis and overtreatment of low-risk prostate cancer without reversing the substantial mortality declines that have been achieved in the screening era.

Today, the majority of men with newly diagnosed prostate cancer will present with low-risk features of the disease. Because prostate cancer often takes an insidious course, it is debated whether the majority of these men require radical treatment and the accompanying derangement of quality of life domains imposed by surgery, radiation, and hormonal therapy. Investigators have identified various selection criteria for "insignificant disease," or that which can be monitored for disease progression while safely delaying radical treatment. In addition to the ideal definition of low risk, a lack of randomized trials comparing the various options for treatment in this group of men poses a great challenge for urologists. Early outcomes from active surveillance cohorts support its use in carefully selected men with low-risk disease features, but frequent monitoring is required. Patient selection and disease monitoring methods will require refinement that will likely be accomplished through the increased use of biomarkers and specialized imaging techniques.

Objective

To report urethroplasty outcomes in men who developed urethral stricture after undergoing radiation therapy for prostate cancer.

Methods

Our urethroplasty database was reviewed for cases of urethral stricture after radiation therapy for prostate cancer between June 2004 and May 2010. Patient demographics, prostate cancer therapy type, stricture length and location, and type of urethroplasty were obtained. All patients received clinical evaluation, including imaging studies post procedure. Treatment success was defined as no need for repeat surgical intervention.

Results

Twenty-nine patients underwent urethroplasty for radiation-induced stricture. Previous radiation therapy included external beam radiotherapy (EBRT), radical prostatectomy (RP)/EBRT, EBRT/brachytherapy (BT) and BT alone in 11 (38%), 7 (24%), 7 (24%), and 4 (14%) patients, respectively. Mean age was 69 (±6.9) years. Mean stricture length was 2.6 (±1.6) cm. Anastomotic urethroplasty was performed in 76% patients, buccal mucosal graft in 17%, and perineal flap repair in 7%. Stricture was localized to bulbar urethra in 12 (41%), membranous in 12 (41%), vesicourethra in 3 (10%), and pan-urethral in 2 (7%) patients. Overall success rate was 90%. Median follow-up was 40 months (range 12-83). Time to recurrence ranged from 6-16 months.

Conclusion

Multiple forms of urethroplasty appear to be viable options in treating radiation-induced urethral stricture. Future studies are needed to examine the durability of repairs.

Purpose

We describe the etiology, presentation, treatment and outcomes of men diagnosed with an acquired urethral diverticulum.

Materials and methods

We retrospectively analyzed the records of men with an acquired urethral diverticulum in an 11-year period (2000 to 2011) at a tertiary care reconstructive practice. Patient demographics, history, presentation, anatomical details such as diverticulum size and location, management and outcomes were recorded. Technical success was defined as unobstructed urination without urinary tract infection.

Results

A total of 22 men with an acquired urethral diverticulum were included in analysis. Median age at presentation was 48.5 years (range 18 to 86). Most commonly, patients presented with recurrent urinary tract infection, urinary dribbling, incontinence or a weak urinary stream. Of the 22 men 12 (54.5%) underwent urethral diverticulectomy and urethroplasty, 3 (13.5%) underwent ileal conduit urinary diversion and 7 (32%) were treated nonoperatively. Select cases were managed conservatively when the urethral diverticulum was confirmed in a nonobstructed urethra, it was small or asymptomatic and it could be manually emptied after voiding. At a mean followup of 2.3 years there was a 91% urethral diverticulum recurrence-free rate.

Conclusions

Acquired male urethral diverticula are rare but should be considered when there is recurrent urinary tract infection, obstructive voiding symptoms, a history of hypospadias, urethral stricture or trauma, or prolonged urethral catheterization. Treatment options may include surgical excision of the urethral diverticulum or urinary diversion. Some patients may be adequately treated nonoperatively with post-void manual decompression.

Purpose

The rectal sphincter preserving transperineal approach has been increasingly used successfully. We analyzed our experience with this surgical approach. A secondary aim was to evaluate the surgical outcome of energy ablative rectourethral fistulas without a concomitant interposition muscle flap.

Materials and methods

We identified all patients with rectourethral fistula who underwent rectal sphincter preserving transperineal repair from 1998 to 2011. Re-approximation of the urethral mucosa, posterior anastomotic urethroplasty or partial/total prostatectomy with urethrovesical anastomosis was performed for urinary closure. The fistula cohort was divided into 2 groups, including postoperative and energy ablative fistulas, respectively. Success after perineal rectourethral fistula repair was defined as resolution after the first attempt at repair.

Results

A total of 23 patients underwent rectal sphincter preserving, transperineal rectourethral fistula repair. In the postoperative fistula cohort the fistula was successfully resolved in all 10 patients. A dartos interposition muscle flap was used in 2 of 10 patients. In the energy ablative cohort the fistula was successfully closed in 8 of 13 patients. An interposition muscle flap was not placed in 8 patients with an energy ablative fistula, of whom success was achieved in 5. Two of the 5 patients with an energy ablative fistula and a successful outcome without a concomitant interposition muscle flap had urinary extravasation, necessitating temporary catheterization.

Conclusions

Rectal sphincter preserving transperineal repair is a successful surgical method to repair postoperative and energy ablative rectourethral fistulas. An interposition muscle flap should be considered in the setting of energy ablative rectourethral fistulas to increase successful outcomes.

Active surveillance is an increasingly recognized treatment option for men with low-risk prostate cancer. Despite encouraging evidence for oncologic efficacy and reduction in morbidity, several barriers contribute to the underuse of this management strategy. Consistent selection criteria as well as identification and validation of triggers for subsequent intervention are essential. Incorporation of novel biomarkers as well as advanced imaging techniques may improve surveillance strategies by better defining eligibility as well as improving prompt detection of disease progression.

Objective

To characterize complications of prostate cancer therapy and operative management in patients referred to our institution for surgical intervention.

Materials and methods

Data was abstracted from a retrospectively collected single surgeon database at a large tertiary care referral-based medical center. Variables included age, prostate cancer therapy, complication(s) and their management, and number of operations. Descriptive statistics were used.

Results

From 2006-2010, 890 patients underwent genitourinary surgery, of which 139 were to treat complications arising from prostate cancer therapy. Complications stemmed from radical prostatectomy (RP) monotherapy, RP and external beam radiation therapy (EBRT) or brachytherapy (BT), EBRT only, BT only, and combination EBRT and BT. Complications included urinary incontinence (UI), urethral strictures, bladder neck contractures, and fistulas. UI and bladder neck contractures were more common in patients treated with RP or RP with EBRT or BT. Strictures and fistulas were common in patients treated with EBRT or BT. Interventions included direct vision internal urethrotomy, artificial urinary sphincter, urethral reconstruction, UroLume urethral stent, urethral sling, repair of fistulas, and balloon dilation. Forty eight percent of patients required multiple operations. The median number of interventions was two.

Conclusions

We operatively managed patients treated with non-surgical and surgical modalities for prostate cancer. Complications included UI, fistulas, strictures, and bladder neck contractures. These were managed with a variety of operative interventions. As more men undergo treatment for localized disease, more will inevitably have complications stemming from interventions.

Objective

To describe how demographic and diagnostic characteristics of men with prostate cancer in the United States have changed since 1999, using data from the Cancer of the Prostate Strategic Urologic Research Endeavor (CaPSURE) registry.

Methods

The medical records of patients enrolled in CaPSURE between 1999 and 2011 were evaluated. Baseline demographics, disease features, and imaging use were assessed. Mantel-Haenszel chi-square was used to test for trends across diagnostic years.

Results

Between 1999 and 2011, a total of 9572 patients were diagnosed with prostate cancer and enrolled in CaPSURE at community (36), academic (3), and Veteran's Affairs (4) hospitals. Over the study period, mean age at diagnosis decreased, P <.01. In 2008-2011, a significant increase in diagnostic Gleason 7 or higher was observed relative to 1999-2001 (50% vs 36%, P <.01), congruent with recent guideline modifications of the Gleason classification system. An increase in the mean number of diagnostic biopsy cores (13.3 vs 8.3, P <.01) was also observed. A significant decrease in use of any imaging modality was seen (19% vs 45%, P <.01). Average pretreatment urinary and bowel function scores did not change, although there were significant increases in sexual function observed overall (P <.01).

Conclusion

In the United States, several trends in the demographics and disease profile of men with newly diagnosed prostate cancer were observed over the past 12 years. Decreased imaging use and increased number of cores taken during diagnostic biopsy are in line with national urologic guidelines on prostate cancer diagnosis and management.

Purpose

A variety of clinical and imaging findings are used by clinicians to determine utility of renal angioembolization (AE) in managing renal trauma. Our purpose was to investigate specific criteria that clinicians who manage high-grade renal trauma (HGRT) utilize in decision-making for primary or delayed AE.

Methods

A total of 413 urologists and interventional radiologists (IRs) who practice at level 1 or 2 trauma centers within the United States were provided an original survey via email on experience and opinions regarding the utility of AE for HGRT. We described overall practice patterns and assessed differences by clinician type, using the Fisher's exact test.

Results

A total of 79 (20 %) clinicians completed the survey. All clinicians had AE capability for HGRT management. A higher proportion of IRs reported using AE for grade I-II (33 vs. 3 %, p = 0.002), grade III (65 vs. 26 %, p = 0.001), and penetrating injuries (83 vs. 58 %, p = 0.02). A greater proportion of urologists reported using AE for grade V injuries (81 vs. 56 %, p = 0.03). Clinicians most commonly cited computed tomography evidence of active arterial bleeding (97 %), or arteriovenous fistula/pseudoaneurysm (94 %) as indications for primary AE, and 62 % identified concurrent visceral injury as factor that would necessitate surgical intervention.

Conclusion

In a survey of clinicians, we report that IRs and urologists utilize AE differently when managing HGRT, as a higher proportion of IRs use AE to manage lower grade as well as penetrating injuries. Validation studies are needed to establish algorithms to identify patients with HGRT who would benefit from selective renal AE.