Extraperitoneal robot assisted laparoscopic prostatectomy with Versius system: single centre experience.

INTRODUCTION: Versius Surgical System (CMR Surgical, Cambridge, UK) is a novel tele-operated robotic surgical system designed to assist surgeons for minimally invasive surgery which is gaining momentum in the world of robotic surgery. We describe our single centre experience with Versius and report the advantages and challenges posed by this new robotic system in a series of 53 extraperitoneal robotic assisted laparoscopic prostatectomies (eRALP) for prostate cancer (PCa). MATERIALS AND METHODS: Data of 53 eRALP performed with Versius in our centre were collected and analysed, Descriptive statistics were used to report our results. RESULTS: In 16 months we performed 53 eRALP: 18 (34%) with PLND, 33 (62%) nerve sparing cases. Mean setup time was 15 min, mean console time was 100 min and mean operative time was 130 min. We observed a substantial reduction of console time and set-up time after only 5 procedures. In the first 4 procedures, the dissection of the neurovascular bundle was performed laparoscopically, to switch back to robotic assisted approach afterwards. No major system failures were observed. No major intra-operative and post-operative complications occurred. Mean follow-up time was 9 months (range 3-15 months); no patients experienced biochemical recurrence or metastatic progression over this period, 8 (15%) patients had adjuvant radiotherapy based on unfavourable pathology report (positive surgical margins or positive limphnodes). CONCLUSION: This represents to our knowledge the largest extraperitoneal RALP case series with Versius, and it aims to provide solid clinical proof of the safety, effectiveness and versatility of this innovative system. In our experience, this platform represents a good option for every urologic surgeon who wants to start a robotic programme and it appears particularly suitable for urologists with a large laparoscopic expertise.

Increased aquaporin 1 expression in the tunica albuginea of Peyronie's disease patients: an in vivo pilot study.

Peyronie's disease (PD) is a localized disorder of the connective tissue of the tunica albuginea (TA) whose etiology has not been elucidated. Although several studies have implicated genetic susceptibility and/or mechanical trauma as triggering events for PD, the underlying molecular mechanisms remain largely unknown. Aquaporin 1 (AQP1) is a water channel protein potentially implicated in connective tissue resistance to mechanical stress, acting primarily by increasing tension within the collagen network. Although it represents a potentially attractive molecular target in PD, to date no studies had ever addressed whether AQP1 is detectable and/or differentially expressed in the TA of these patients. Herein the present study, through immunohistochemical and biochemical approaches, we were able to detect AQP1 expression in the TA of control and PD affected patients. We demonstrated that AQP1-like immunoreactivity and expression are significantly increased in plaques of PD patients Vs controls, implying that AQP1 overexpression might be the consequence of a localized maladaptive response of the connective tissue to repeated mechanical trauma. In summary, these data support the idea that AQP1 might represent a potentially useful biomarker of mechanical injury in the TA and a promising target for the treatment of PD.

Treatment of bilateral varicocele and other scrotal comorbidities using a single scrotal access: our experience on 34 patients.

INTRODUCTION: Varicocele is the main cause of infertility in male and the most correctable cause of it too. In this study, we present our experience on 34 patients affected by bilateral varicocele and other scrotal comorbidities treated underwent surgery with a scrotal access. MATERIALS AND METHODS: 34 patients were enrolled with clinical palpable and infraclinical (ultrasonic doppler scanning) bilateral varicocele and other comorbidities like right hydrocele, left hydrocele, bilateral hydrocele, and epididymal cyst. They all underwent scrotal bilateral varicocelectomy under local anesthesia. RESULTS AND DISCUSSION: At 6 months, no other complications were reported. No case of testicular atrophy was observed. None had recurrence of varicocele. All scrotal comorbidities were treated as well. CONCLUSION: Scrotal access with local anesthesia is a safe and useful technique to treat patients with bilateral varicocele and other scrotal comorbidities.

Controversies in urethral reconstruction.

Urethral strictures are a frequent source of lower urinary tract symptoms in men. Open urethroplasty is regarded as the gold-standard treatment for urethral stricture disease. The treatment for urethral strictures is a continually evolving process and there is renewed controversy over the best approach to take in reconstructing the urethra, since the superiority of one approach over another has not yet been clearly defined. Anterior urethroplasty can be treated, with low morbidity, in an outpatient surgical setting, thus decreasing the impact of urethroplasty. In order to improve outcome in adult patients when the penile shaft is involved, reconstructive urethral surgeons have learned to apply the principles of delicate tissue handling, and the development of minimally invasive techniques. Genital or extra-genital skin has been used as a free graft or harvested as a flap for some time, thanks to its location, hairless skin and durability. Since the early 1990s, the use of oral mucosa was introduced in genital reconstructive surgery and has become popular for urethral reconstructions. Urethral reconstructive surgery is changing rapidly and this change has posed problems for surgeons who see the principles that previously defined their profession becoming obsolete or unworkable. New techniques and new engineered material are a part of our future.

Surgical challenge in patients who underwent failed hypospadias repair: is it time to change?

INTRODUCTION: Our purpose was to evaluate patients who underwent failed hypospadias repair. PATIENTS AND METHODS: We evaluated 4 different groups of patients who underwent failed hypospadias repair. Group 1: patients who underwent only urethral surgery; group 2: patients who underwent only corpora cavernosa surgery; group 3: patients who underwent urethral and corpora cavernosa surgery; group 4: patients who underwent complex reconstructive surgery. Success was defined as a functional urethra without fistula, with glandular meatus and acceptable esthetic appearance of the genitalia. RESULTS: Out of 1,176 patients, group 1 included 301 patients (25.5%), group two 60 patients (5.2%), group three 166 patients (14.1%) and group four 649 patients (55.2%). The mean follow-up was 60.4 months. Out of 1,176 cases, 1,036 (88.1%) were considered successful and 140 (11.9%) failures. CONCLUSION: In the majority of patients (55.2%) with failed hypospadias repair, urethral reconstruction is associated with complex surgical procedures to fully resurface glands, penile shaft and genitalia.

Evaluation of a new, rapid, qualitative, one-step PSA Test for prostate cancer screening: the PSA RapidScreen test.

To increase the acceptance rate and reduce the cost of the screening programme for prostate cancer, a new qualitative and one-step test for prostate-specific antigen (PSA), called PSA RapidScreen, has been evaluated. PSA RapidScreen test is a chromatographic lateral flow immunoassay, which generates a positive or negative result for PSA values >or=or <4 ng/ml, respectively. Capillary blood samples from 188 men were evaluated. Two independent observers interpreted the test at 10, 15, 20 and 25 min. A total of 10 women were tested as controls. Parallel serum samples were simultaneously collected and tested with an ordinary quantitative assay (Elecsys 2010, Roche). Sensitivity, specificity, accuracy, negative and positive predictive values of the test were 97.6, 90.4, 94, 98 and 89%, respectively. PSA RapidScreen tests on female capillary samples were negative. Reproducibility of the test was 99.5%, while interobserver variation was 5%. Specificity of the test was altered by variations in the reading time. Quantitative assessment of the intensity of the band correlated with the PSA value (r=0.87; t=23.97; P<0.001). PSA RapidScreen is a rapid, simple and reproducible one-step test. The low cost and the speed of the test make it a powerful and convenient tool for prostate cancer screening programmes.