The definition of the safest width of healthy renal margin to achieve oncological efficacy and therefore of the safest resection technique (RT) during partial nephrectomy (PN) continues to be widely debated. The aim of this study is to evaluate the prevalence of positive surgical margins (PSM), loco-regional recurrence (LRR) and renal recurrence (RER) rates after simple enucleation (SE) and standard partial nephrectomy (SPN) for malignant renal tumors. A systematic review of the English-language literature was performed through August 2016 using the Medline, Web of Science and Embase databases according to the PRISMA criteria. A systematic review and meta-analysis was performed in those studies that defined the exact anatomical location of recurrence after PN. Overall, 33 studies involving 11,282 patients were selected for quantitative analysis. At a median follow-up of 43 (SE) and 52 (SPN) months, the pooled estimates of the prevalence of PSMs, LRR and RER were 2.7% (95% CI: 1.5-4.6%, P<0.001) and 0.4% (95% CI: 0.1-2.2%, P=0.018), 2.0% (95% CI: 1.4-2.8%, P<0.001) and 0.9% (95% CI: 0.5-1,7%, P=0.04), 1.5% (95% CI: 0.9-2.3%, P=0.001) and 0.9% (95% CI: 0.5-1,7%, P=0.40) in patients undergoing SPN and SE, respectively. Our systematic analysis and meta-analysis demonstrates that SE is noninferior to SPN regarding PSM, LRR and RER rates in patients undergoing PN for malignant renal tumors. Further studies using standardized reporting tools are needed to evaluate the role of resection techniques for oncologic outcomes after PN.
Background: Holmium laser enucleation of the prostate (HoLEP) is considered a safe and effective treatment in case of bladder outlet obstruction (BOO). Despite technical execution has evolved over time, from the standard three-lobes to the more recent en-bloc approaches, data comparing these two techniques are missing. The aim of the present study was to describe our en-bloc HoLEP with early apical release technique and compare peri- and postoperative results with the classical three-lobe approach in a single referral center. Materials and Methods: We prospectively analyzed all consecutive cases between 2017 and 2019 divided according to the type of approach. Patients were preoperatively studied through instrumental assessment and clinical evaluation, using validated questionnaires and then postoperatively at specific time frames. Linear regression analysis was performed to evaluate possible predictor of continuous variables. All the procedures were carried out by one single expert surgeon. Results: Overall, 168 patients were included, of which 81 were treated with classical three-lobes and 87 with en-bloc with early apical release technique. The two cohorts were comparable related to preoperative features and postoperative complication rate. Mean enucleation time (ET), lasing time, amount of energy delivered, and overall operative time were significantly lower in en-bloc procedures ( p < 0.05). Stepwise multivariable linear regression showed that en-bloc strategy can significantly predict shorter ET and lower energy delivered. Stress incontinence rate at 1-month follow-up was found to be significantly reduced in the en-bloc group, compared with the counterpart. Conclusions: Both techniques are effective and safe treatment options for BOO, since peri- and postoperative surgical and functional outcomes were favorable. En-bloc strategy may significantly decrease ET and the amount of energy delivered leading to a reduced early stress incontinence rate compared with the standard approach.
20 September 2018 in The Journal of Sexual Medicine
Introduction: The effectiveness of phosphodiesterase type 5 (PDE5) inhibitors over the conservative management of Peyronie’s disease (PD) has been widely questioned. Aim: To determine the role of sildenafil 25 mg film formulation twice a day (S25 b.i.d.) in the improvement of curvature after treatment of collagenase of Clostridium hystoliticum (CCH) in penile curvature owing to PD. Methods: From April 2017 to April 2018, 161 consecutive patients were treated with S25 b.i.d. + CCH or CCH alone. Adjustment variables consisted of age, penile curvature, and the 15-question International Index of Erectile Function (IIEF-15) questionnaire at baseline using 1:1 propensity-score matching. Overall, 50 patients were considered subdivided into the following: 25 patients who received S25 b.i.d. + CCH (group A) and 25 who received CCH alone (group B). Patients received CCH injection using a shortened protocol and vacuum device in both groups. Main Outcome Measure: The primary outcome of the study was the change in penile curvature after treatment, and secondary outcomes were the change in sexual function (IIEF-15) and in the Peyronie’s Disease Questionnaire (PDQ) and its subscores, PDQ-PS (psychosexual symptoms), PDQ-PP (penile pain), and PDQ-SB (symptom bother). Results: Overall, mean penile curvature was 47.0° (SD 21.88), the mean IIEF-EF (erectile function) was 23.56 (SD 4.10), and the mean PDQ was 27.06 (SD 13.55). After the treatment, we observed a mean change for penile curvature of 25.6 (SD 9.05) in group A and –25.6 (SD 9.7) in group B (P < .01), for IIEF-EF of 2.28 (SD 2.33) in group A and 1.36 (SD 1.77) in group B (P = .03), for PDQ-PS of –3.04 (SD 2.95) in group A and of –2.12 (SD 2.06) in group B (P = .11), for PDQ-PP of –1.0 (SD 4.48) in group A and of –0.88 (SD 2.04) in group B (P = .60), for PDQ-SB of –5.84 (SD 4.58) in group A and of –4.16 (SD 4.45) in group B (P = .60), and for Female Sexual Function Index of 3.8 (SD 2.45) in group A and of 2.72 (SD 2.28) in group B (P = .14). We found a rate of global satisfaction of 70.83% in group A and of 84.0% in group B (P = .27). Clinical Implications: Addition of S25 b.i.d. to CCH is superior to CCH alone for improving penile curvature and erectile function. Strength & Limitations: This is the first study comparing sildenafil + CCH vs CCH alone for the treatment of PD. Lack of randomization and direct verification of appropriate use of penile modeling could be considered limitations. Conclusion: In this study, combination therapy was superior in terms of penile curvature and erectile dysfunction improvement.
Several studies have investigated the role of inflammation in promoting tumorigenesis and cancer progression. Neoplastic as well as surrounding stromal and inflammatory cells engage in well-orchestrated reciprocal interactions to establish an inflammatory tumor microenvironment. The tumor-associated inflammatory tissue is highly plastic, capable of continuously modifying its phenotypic and functional characteristics. Accumulating evidence suggests that chronic inflammation plays a critical role in the development of urological cancers. Here, we review the origins of inflammation in urothelial, prostatic, renal, testicular, and penile cancers, focusing on the mechanisms that drive tumor initiation, growth, progression, and metastasis. We also discuss how tumor-associated inflammatory tissue may be a diagnostic marker of clinically significant tumor progression risk and the target for future anti-cancer therapies.