Search

Objectives To describe the most recent data from phase I and II clinical trials of stereotactic body radiation therapy ( SBRT) using image-guided robotic radiosurgery, specifically the Cyberknife® ( Accuracy Incorporated, Sunnyvale, CA, USA)., To better determine thecurrent role of this type of radiosurgery in prostate cancer ( PCa) management., Materials and Methods Current clinical trials and relevant retrospective studies were identified from the literature, clinical trial databases, websites and conference abstracts., The indications, technical aspects, efficacy and toxicity of SBRT using the Cyberknife® system were summarized., Results The Cyberknife® system is an experimental treatment mostly used for localized PCa in stage cT1/ T2a-b N0 M0 with a Gleason score ≤7 and PSA level ≤20 ng/ mL. Hypofractionated radiation therapy was delivered in five fractions of 7-7.25 Gy for a total dose of 35-36.25 Gy., After treatment, the median PSA levelfell from 4.9-8.3 ng/ mL to 0.1-1.6 ng/m L at a median follow-up of 4-60 months., The biochemical progression-free survival rates ranged from 78.3 to 100%., Acute and late toxicities were mostly grade 1/2 rectal or urinary complications. Few grade 3 and no grade 4 toxicities occurred during follow-up; however, erectile dysfunction and testes toxicity were also reported., Conclusions The use of the Cyberknife® system is limited mainly by its pretreatment and maintenance costs., Despite encouraging preliminary results, longer-term follow-up and randomized controlled phase III clinical trials are necessary before the Cyberknife® system becomes a standard treatment method. [ABSTRACT FROM AUTHOR]

The aim of this article is to assess the outcomes of a low-intensity extracorporeal shock wave therapy (LiESWT) protocol for the treatment of Peyronie's disease (PD). Patients treated for PD were prospectively recorded, and data were retrospectively reviewed. Age, characteristics of fibrous plaques, concomitant treatments, International Index of Erectile Function (IIEF-5), Lue score, and pain score on Likert scale were collected. Patients in acute phase of PD and an angulation of <40° were included. The protocol consisted of 6 weekly sessions of 4000 pulses each, applied from different directions, with a maximal power of 20 W and 8 Hz frequency. We included 39 patients (median age: 56.8 years, interquartile range [IQR]: 35.8-62.2 years). The median number of sessions received per patient was 7.2. After treatment, the median Lue score decreased from 6.8 initially to 3.3 (P = 0.003), the median Likert pain score dropped from 1.8 to 0.7 (P = 0.004), the median plaque size was reduced from 2 cm to 1.2 cm (P = 0.08), and the median penile curvature diminished from 31° to 17° (P = 0.07). On univariate and multivariate analysis, the only predictors of success were younger age (odds ratio [OR] = 0.95, P = 0.03 and OR = 0.91, P = 0.04, respectively) and concomitant use of phosphodiesterase-5 inhibitors (PDE5i; OR = 0.92, P = 0.02 and OR = 0.93, P = 0.01, respectively). LiESWT had a favorable impact on Lue score and notably penile pain, curvature, plaque size, and erectile function in patients treated for PD during the early inflammatory phase, with no side effects. Younger age and concomitant use of PDE5i were the only success predictors., Competing Interests: None

Introduction: To assess the impact of statin use on biochemical recurrence (BCR) of prostate cancer after radical prostatectomy (RP)., Materials and Methods: Data from all men treated with robot-assisted laparoscopic RP (RALRP) for localized prostate cancer between 2009 and 2014 at our institution were prospectively collected: age, body mass index (BMI), statin-use status, preoperative prostate-specific antigen (PSA) level, clinical T stage, biopsy Gleason score (bGS), D'Amico risk group, pathological T stage, specimen Gleason score (sGS), multifocality, peri neural invasion, positive surgical margins and time to BCR. Univariate and multivariate analysis were performed to test associations between statin use and prognostic factors of prostate cancer and/or BCR., Results: Overall, 591 patients with a median follow up of 42.3 months [25.8-59.9] were included in the current study and split in two cohorts: statin users (n = 156) and statin non-users (n = 435). When comparing statin user and non-users, no significant difference was found in terms of clinical, biochemical and pathological characteristics except for BMI (median 29 versus 26, respectively; p = 0.04). Regarding BCR, there was no significant difference between men using statin versus those not using them (4.5% versus 4.6%, p = 0.65). In univariate analysis, statin use was not significantly correlated to any prognostic factors of prostate cancer recurrence. Furthermore, there was no significant difference in the 5 years biochemical-free survival rates between statin users and non-users (75% versus 73%; p = 0.7)., Conclusions: From the current study, statin daily intake was not significantly associated with any prognostic factors of prostate cancer and with BCR after RARLP.

Purpose: To assess the postsurgical survival of patients with urothelial carcinoma of the bladder with pT0 tumor at pathologic examination of cystectomy specimens., Methods: A multi-institutional, retrospective database was analyzed with data from 4758 radical cystectomy (RC) patients who underwent RC without neoadjuvant chemotherapy and who were diagnosed with pT0 on the basis of the pathologic specimen. Survival curves were estimated. A multivariate Cox model was used to evaluate the association between prognosis factors and disease recurrence or survival., Results: Overall, 258 patients (5.4%) were included in the study. The median age was 64 years. At last resection, 171 tumors were invasive (at least pT2), and 87 were not. Median follow-up was 51 months. At multivariate analysis, initial location of the tumor and absence of lymphadenectomy were associated with tumor recurrence (P = 0.03 and P = 0.005, respectively) and specific mortality (P = 0.005 and 0.001, respectively). The main limitation of the study is its retrospective design, which is due to the rarity of this situation. Cancer-specific and recurrence-free survival rates were 89 and 85%, respectively, at 5 years and 82 and 80%, respectively, at 10 years., Conclusions: Despite acceptable oncological outcomes, patients with a pT0 tumor at the time of RC are still at risk of recurrence and progression and should not be considered to be entirely cured. In this population, stringent follow-up according to current recommendations should be effective.