Juliana Laze

Correlation between benign prostatic hyperplasia and inflammation.

Purpose of reviewThis review aims to evaluate the available evidence on the role of prostatic inflammation in the pathogenesis and progression of benign prostatic hyperplasia (BPH). Recent findingsAlthough there is still no evidence of a causal relation, accumulating evidence suggests that inflammation may contribute to the development of BPH and lower urinary tract symptoms (LUTS). Inflammatory infiltrates are frequently observed in prostate tissue specimens from men with BPH and the presence or degree of inflammation has been found to be correlated with prostate volume and weight. The inflammatory injury may contribute to cytokine production by inflammatory cells driving local growth factor production and angiogenesis in the prostatic tissue. This proinflammatory microenvironment is closely related to BPH stromal hyperproliferation and tissue remodeling with a local hypoxia induced by increased oxygen demands by proliferating cells which supports chronic inflammation as a source of oxidative stress leading to tissue injury in infiltrating area. SummaryAlthough the pathogenesis of BPH is not yet fully understood and several mechanisms seem to be involved in the development and progression, recent studies strongly suggest that BPH is an immune inflammatory disease. The T-cell activity and associated autoimmune reaction seem to induce epithelial and stromal cell proliferation. Further understanding of the role of inflammation in BPH and clinical detection of this inflammation will expand the understanding of BPH pathogenesis and its histologic and clinical progression, allow risk stratification for patients presenting with BPH-related LUTS, and suggest novel treatment strategies.

Ten-year Outcomes of Sexual Function After Radical Prostatectomy: Results of a Prospective Longitudinal Study

BACKGROUND The long-term impact of radical prostatectomy (RP) on sexual function (SF) and erectile function (EF) has important implications related to the risk-to-benefit ratio of this treatment. OBJECTIVE To determine the long-term effect of RP on male SF and EF over 10 yr of follow-up. DESIGN, SETTING, AND PARTICIPANTS This was a prospective, longitudinal outcomes study in 1836 men following RP at a university hospital. Men were invited to complete the University of California, Los Angeles, Prostate Cancer Index SF survey at baseline, 3, 6, 12, 24, 96, and 120 mo postoperatively and a survey at 4 and 7 yr postoperatively assessing global changes in their EF over the preceding 2 yr. INTERVENTION All men underwent open RP. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS Multiple, generalized linear regression models were used to evaluate the association between time following RP and SF and EF scores controlling for age, prostate-specific antigen, Gleason scores, stage, nerve sparing, race, and marital status. RESULTS AND LIMITATIONS After an expected initial decline, time-dependent improvements in SF and EF were observed through 2 yr postoperatively. Overall, SF and EF were both generally stable between 2 and 10 yr following RP. The subgroups of younger men and men with better preoperative function were more likely to maintain their EF and SF through 10 yr following RP. The primary limitation is the potential bias attributable to nonresponders. CONCLUSIONS The recovery of EF can extend well beyond 2 yr. There is a significant association between younger age and better preoperative function and the likelihood of experiencing improvements beyond 2 yr. Assessing the comparative effectiveness of treatment options for localized prostate cancer must examine SF beyond 2 yr to account for delayed treatment effects and the natural history of SF in the aging male population.

Long-term continence outcomes in men undergoing radical prostatectomy for clinically localized prostate cancer

BACKGROUND Urinary incontinence is a common short-term complication of radical prostatectomy (RP). Little is known about the long-term impact of RP on continence. OBJECTIVE To elucidate the long-term progression of continence after RP. DESIGN, SETTING, AND PARTICIPANTS From October 2000 through September 2012, 1788 men undergoing open RP for clinically localized prostate cancer by a single surgeon at an urban tertiary care center prospectively signed consent to be followed before RP and at 3, 6, 12, 24, 96, and 120 mo after RP. A consecutive sampling method was used and all men were included in this study. INTERVENTION Men underwent open RP. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS Regression models controlled for preoperative University of California, Los Angeles-Prostate Cancer Index urinary function score (UCLA-PCI-UFS), age, prostate-specific antigen level, Gleason score, stage, nerve-sparing status, race, and marital status were used to evaluate the association of time since RP with two dependent variables: UCLA-PCI-UFS and continence status. RESULTS AND LIMITATION The mean UCLA-PCI-UFS declined between 2 yr and 8 yr (83.8 vs 81.8; p=0.007) and marginally between 8 yr and 10 yr (81.8 vs 79.6; p=0.036) after RP, whereas continence rate did not significantly change during these intervals. Men ≥ 60 yr old experienced a decline in mean UCLA-PCI-UFS between 2 yr and 8 yr (p=0.002) and a marginal decline in continence rate between 2 yr and 10 yr (p=0.047), whereas these variables did not change significantly in men <60 yr old. These outcomes are for an experienced surgeon, so caution should be exercised in generalizing these results. CONCLUSIONS Between 2 yr and 10 yr after RP, there were slight decreases in mean UCLA-PCI-UFS and continence rates in this study. Men aged <60 yr had better long-term outcomes. These results provide realistic long-term continence expectations for men undergoing RP.

Post-Prostatectomy Incontinence During Sexual Activity: A Single Center Prevalence Study

PURPOSE The prevalence and mechanism of incontinence during sexual activity after radical prostatectomy has not been well described. We determined the prevalence and severity of incontinence during sexual activity with time and the relationship between incontinence during sexual activity and stress urinary incontinence in the absence of sexual activity. MATERIALS AND METHODS A total of 1,459 men with prostate cancer underwent radical prostatectomy between October 2000 and December 2007, as performed by 1 surgeon. Patients completed UCLA-PCI preoperatively, and 3, 6, 12 and 24 months postoperatively. We analyzed the frequency distribution of incontinence during sexual activity and stress urinary incontinence with time. We also examined the relationship between incontinence during sexual activity and stress urinary incontinence by chi-square analysis. RESULTS The percent of patients who reported any bother from incontinence during sexual activity was 44.4% at 3 months, which decreased to 36.1% at 24 months. The percent of patients reporting major bother from incontinence during sexual activity was 22.4% and 12.1% at 3 and 24 months, respectively. Bother from incontinence during sexual activity and from stress urinary incontinence were strongly associated at all times (p<0.001). More than half of the men with major bother due to incontinence during sexual activity also reported bother from stress urinary incontinence. However, more than 10% of those with no stress urinary incontinence problem reported major bother from incontinence during sexual activity. CONCLUSIONS Incontinence during sexual activity is a persistent problem for some men after radical prostatectomy. Significant incontinence during sexual activity may occur in the absence of stress urinary incontinence during nonsexual activities. Effective management of this problem requires further investigation.

Patient Centered Outcomes in Prostate Cancer Treatment: Predictors of Satisfaction Up to 2 Years After Open Radical Retropubic Prostatectomy

PURPOSE Few groups have examined satisfaction after prostate cancer treatment. We determined 1) predictors of satisfaction between 3 months and 2 years after open radical retropubic prostatectomy, and 2) whether these factors are time dependent. MATERIALS AND METHODS This prospective cohort study included 1,542 men who underwent radical retropubic prostatectomy from October 2000 to July 2008. The primary outcome was satisfaction self-assessed at 3, 6, 12 and 24 months. We used multivariate logistic regression and repeated measures analysis to determine predictors of satisfaction, adjusting for demographic and clinical characteristics. RESULTS Median followup was 24 months. About 93% of the men were satisfied. On multivariate analysis men were significantly less satisfied at 3 months when the urinary catheter was indwelling for 3 weeks or greater (OR 0.23, 95% CI 0.10-0.54), or they required intervention for anastomotic stricture (OR 0.23, 95% CI 0.11-0.49) or experienced 4-point or greater worsening in American Urological Association symptom score (OR 0.26, 95% CI 0.13-0.49). At 6 months worsening urinary function (OR 0.34, 95% CI 0.13-0.88) and biochemical failure (OR 0.15, 95% CI 0.05-0.43) were significantly associated with satisfaction. Worsening sexual function became significant at 12 and 24 months. These associations were confirmed on repeated measures analysis. CONCLUSIONS Most men were satisfied after radical retropubic prostatectomy. Satisfaction determinants showed a nonsignificant trend toward time dependence. Postoperative factors, such as the duration of indwelling Foley catheterization, were associated with short-term satisfaction while sexual and urinary function, and biochemical failure were associated with long-term satisfaction. Based on high satisfaction rates open radical retropubic prostatectomy is an excellent treatment for prostate cancer.

Radical Prostatectomy Improves and Prevents Age Dependent Progression of Lower Urinary Tract Symptoms

PURPOSE The prevalence of lower urinary tract symptoms increases with age and impairs quality of life. Radical prostatectomy has been shown to relieve lower urinary tract symptoms at short-term followup but the long-term effect of radical prostatectomy on lower urinary tract symptoms is unclear. MATERIALS AND METHODS We performed a prospective cohort study of 1,788 men undergoing radical prostatectomy. The progression of scores from the self-administered AUASS (American Urological Association symptom score) preoperatively, and at 3, 6, 12, 24, 48, 60, 84, 96 and 120 months was analyzed using models controlling for preoperative AUASS, age, prostate specific antigen, pathological Gleason score and stage, nerve sparing, race and marital status. This model was also applied to patients stratified by baseline clinically significant (AUASS greater than 7) and insignificant (AUASS 7 or less) lower urinary tract symptoms. RESULTS Men exhibited an immediate worsening of lower urinary tract symptoms that improved between 3 months and 2 years after radical prostatectomy. Overall the difference between mean AUASS at baseline and at 10 years was not statistically or clinically significant. Men with baseline clinically significant lower urinary tract symptoms experienced immediate improvements in lower urinary tract symptoms that lasted until 10 years after radical prostatectomy (13.5 vs 8.81, p <0.001). Men with baseline clinically insignificant lower urinary tract symptoms experienced a statistically significant but clinically insignificant increase in mean AUASS after 10 years (3.09 to 4.94, p <0.001). The percentage of men with clinically significant lower urinary tract symptoms decreased from baseline to 10 years after radical prostatectomy (p = 0.02). CONCLUSIONS Radical prostatectomy is the only treatment for prostate cancer shown to improve and prevent the development of lower urinary tract symptoms at long-term followup. This previously unrecognized long-term benefit argues in favor of the prostate as the primary contributor to male lower urinary tract symptoms.

The effect of surgical intervention for stress urinary incontinence (UI) on post-prostatectomy UI during sexual activity

Study Type – Therapy (case series)

Clinical evaluation of a novel method for the measurement of prostate‐specific antigen, AccuPSATM, as a predictor of 5‐year biochemical recurrence‐free survival after radical prostatectomy: results of a pilot study

Study Type – Diagnostic (validating cohort)

Long-Term Satisfaction and Predictors of Use of Intracorporeal Injections for Post-Prostatectomy Erectile Dysfunction

PURPOSE Intracorporeal injections have low use rates and high discontinuation rates. We examined factors associated with intracorporeal injection use, long-term satisfaction with intracorporeal injection and reasons for discontinuation in men treated with radical prostatectomy. MATERIALS AND METHODS Between October 2000 and September 2003, 731 men who underwent open radical retropubic prostatectomy were enrolled in a prospective outcomes study. The 8-year followup evaluation included the UCLA-PCI, and a survey capturing intracorporeal injection use, satisfaction and reasons for discontinuation. Logistic regression was used to determine associations between intracorporeal injection use and preoperative variables. RESULTS The 8-year self-assessment was completed by 368 (50.4%) men. Of these men 140 (38%) indicated prior or current intracorporeal injection use, with only 34 using intracorporeal injection at 8 years. Overall, 44% of the men were satisfied with intracorporeal injections. Reasons for discontinuation included dislike (47%), pain (33%), return of erection (19%), inefficacy (14%) and no partner (6%). Men trying intracorporeal injections had greater preoperative UCLA-PCI sexual function scores (75.2 vs 65.62, p = 0.00005) as well as greater decreases in this score at 3 months (p = 0.0002) and 2 years (p = 0.003). Higher preoperative sexual function scores were independently associated with the use of intracorporeal injections in a model adjusted for age, marital status, nerve sparing status and body mass index (OR 1.021, 95% CI 1.008-1.035). CONCLUSIONS Men pursuing intracorporeal injections have better baseline erectile function and experience greater deterioration in erectile function during the early postoperative period. Despite the high efficacy of injections, many men discontinue intracorporeal injections due to dislike or discomfort. Satisfaction rates for intracorporeal injections indicate their long-term role in restoring sexual function in men with post-prostatectomy erectile dysfunction.

Blood loss during radical prostatectomy: impact on clinical, oncological and functional outcomes and complication rates

Study Type – Outcomes (cohort)