Prediction of the risk of surgical complications in patients undergoing monopolar transurethral resection of bladder tumour - a prospective multicentre observational study.

INTRODUCTION: The aim of the study was to identify predictors of surgical complications of transurethral resection of bladder tumour (TURBT). MATERIAL AND METHODS: We prospectively recruited 983 consecutive patients undergoing TURBT within 7 months in six academic institutions. All patients were followed up from the surgery up to 30 days postoperatively with at least one telephone contact at the end of the observation. The primary study endpoint was any intra- or postoperative surgical complication. For the identification of predictors of complications, univariate and multivariate logistic regression models were used. Trial registration: ClinicalTrials.gov (NCT03029663). Registered 24 January 2017. RESULTS: Surgical complications were noticed in 228 (23.2%) patients, including 83 (8.4%) patients with more than one complication and 33 cases of Clavien-Dindo grade 3 complications (3.3%). The most common in-hospital complications were bleeding (n = 139, 14.1%) and bladder perforation (n = 46, 4.7%). In a multivariate analysis, nicotine use, high ASA score, and the presence of high-grade tumour were the most significant predictors of high-grade complications. The stage of the disease was the strongest predictor of bleeding, while the presence of muscle in the specimen and resident surgeon were the strongest predictors for bladder perforation. CONCLUSIONS: TURBT poses a significant risk of surgical complications, the majority of which are of low grade.

Preoperative pyuria predicts the presence of high-grade bladder carcinoma in patients with bladder tumors.

INTRODUCTION: Preoperative identification of high-grade bladder cancer presence can optimize patient management. The aim of this study was to assess the association between preoperative pyuria and the pathological features of bladder cancer. MATERIAL AND METHODS: This retrospective analysis enrolled 943 patients undergoing transurethral resection of a bladder tumor. Patients were divided into two study groups based on the presence of pyuria in preoperative urine analysis, defined as the presence of >5 leukocytes in the high power field. Pyuria status as a potential predictive factor was then confronted with pathological features based on standard microscopic examination of the surgical specimen. RESULTS: Among 943 recruited patients, 294 (31.2%) presented with pyuria. Patients with pyuria were older (71 vs. 68 years, p <0.05), had higher rates of large (≥3 cm) tumors (37% vs. 26%, p <0.05), and more frequently presented concomitant hematuria (58% vs. 24%, p <0.05). In case of recurrent tumors patients with pyuria more often received intravesical chemotherapy in the past (4.8% vs. 1.4%, p <0.05). Regarding oncological data, patients with pyuria had significantly higher tumor stage and grade. On multivariable analysis pyuria was independently associated with high-grade tumors (OR 1.97, 95% CI 1.45-2.67). Specificity and negative predictive value of pyuria as a biomarker of high-grade tumors were 76% and 68%, respectively. CONCLUSIONS: Preoperative pyuria can be regarded as a predictor of the presence of high-grade bladder carcinoma in patients with bladder tumors.

Endoscopic intact removal of medium-size- or multiple bladder stones with the use of transvesical laparoendoscopic single-site surgery.

OBJECTIVES: To determine the feasibility and safety of performing transvesical laparoendoscopic single-site surgery (T-LESS) in patients with medium-size, hard stones or multiple stones with high burden. METHODS: In this case series study, 12 patients (11 males and one female) with a mean age of 66.8 years were operated on from February 2016 to May 2017 due to bladder calculi, using the T-LESS approach with a single-port device (Tri-Port + , Olympus, Germany). Indications for this procedure were hard, medium-size, solitary stones after previous unsuccessful endoscopic lithotripsy or the presence of multiple high-burden stones. In two patients, additional procedures (diverticulectomy or a ureterocele incision) were performed simultaneously. RESULTS: All stones were removed intact. No serious complications were observed. The mean operative time was 46 min and the postoperative hospital stay was 22 h. The mean diameter of the largest stone and the mean stone volume of each case were 24 mm and 11 cm3, respectively. At the mean follow-up time of 15 months, there was significant improvement of the symptoms. CONCLUSIONS: The T-LESS technique is an efficient, safe and minimally invasive procedure for intact bladder stone removal in selected patients. The method avoids the risk of urethral injury. Nevertheless, further investigation is needed to assess the wider applicability of the procedure.

Transvesical laparoendosopic single-site surgery as a valuable option to remove eroded materials from the bladder: single-center experience and a review of the literature.

INTRODUCTION: Currently, polypropylene materials are used widely for the treatment of various urogynecologic disorders. This type of treatment can be complicated, although rarely, with erosions of the polypropylene implants into the bladder or the urethra. There is no established treatment for such complications. We present our experience in transvesical laparoendoscopic single-site surgery (T-LESS) removal of eroded materials, and a review of the literature in this field. MATERIALS AND METHODS: From June 2015 to May 2017 eight females, with an average age of 66.5 years (range 55-80 years), were referred to our Center because of the erosion of polypropylene material in the bladder, after anti-incontinence or pelvic organ prolapse treatment. Patients were diagnosed with ultrasound and cystoscopy. Seven bladder erosions and one bladder and urethral penetration were found. Patients were qualified for removal with the T-LESS approach. The Tri-Port + disposable set and standard laparoscopic instruments were used. The eroded materials were dissected and cut away, and the defects of the bladder wall were closed with barbed sutures. The peri-operative efficacy and safety of the method were assessed, and the patients were scheduled for follow-up visits at 6 weeks and every 3 months thereafter. The patients were offered a cystoscopic exam during the 7-10 month period after the operation. RESULTS: The procedures were completed successfully in all patients. No blood loss or complications were observed. The mean operative time was 54.5 min, and the average hospital stay was 30 h. During a follow-up at 11 months, all patients were cured, except for one who presented urethral erosion. CONCLUSIONS: The T-LESS technique for removal of eroded meshes is a safe and effective method. The precise access to the bladder minimizes morbidity, and suturing the bladder wall defects may reduce the risk of recurrence.

Single-session Transvesical Laparoendoscopic 1-Port Removal of 2 Bladder Diverticula in a Female Patient.

BACKGROUND: Bladder diverticula are usually encountered in males, and they are a rarity in women, especially in the absence of obstruction. Open surgery, as well as laparoscopic or robotic, or single-port surgery have been applied successfully to remove bladder diverticula.1-3 To the best of our knowledge, no single-port diverticulectomies have been performed in women. OBJECTIVE: To present the case of using the transvesical laparoendoscopic single-port surgery (T-LESS) for excision of 2 bladder diverticula in a woman. MATERIALS: In August 2016, we carried out the T-LESS access on a 67-year old woman to remove 2 symptomatic bladder diverticula in 1 session. The patient was placed in the lithotomy position and was under general anesthesia. The procedure was performed transvesically (percutaneous intraluminal approach) with a single-port device (Tri-Port+) via a 1.5-cm incision made 3 cm above the pubic symphysis. Standard 10-mm optic and straight laparoscopic instruments were used. The diverticula were dissected and removed from the bladder with a combination of standard laparoscopic and endoscopic instruments introduced through the TriPort+ or the urethra. The bladder wall openings were closed by running absorbable 2/0 polyglactin sutures. An 18F Foley catheter was left in place for 6 days. RESULTS: The operation lasted 120 minutes. Blood loss was minimal, and no complications were observed. The postoperative period was uneventful. The patient was discharged within 19 hours of surgery. During a 9-month follow-up, the patient reported the significant improvement in the severity of symptoms. Laboratory examination results were all within the normal range. CONCLUSION: The T-LESS procedure can be considered as a valuable option for diverticulectomies in female patients because of its minimal invasiveness, short hospital stay, and fast recovery time.