Outcomes and complications of radical cystectomy with ileal conduit urinary diversion: A comparison between open, semi-robotic and totally robotic surgery.

BACKGROUND: It was aimed to compare open versus robotic-assisted radical cystectomy (RARC) with intracorporeal ileal conduit (ICIC), versus RARC with extracorporeal ileal conduit (ECIC) formation for bladder cancer. MATERIALS AND METHODS: Open, RARC-ECIC and RARC-ICIC groups were compared in terms of patient demographics, operative and postoperative parameters, pathological parameters, complications and functional outcomes. RESULTS: Mean operative times were lower in the RARC-ECIC group (p = 0.004). Mean estimated blood loss was significantly lower (p < 0.01) in the robotic groups. The blood transfusion was lower in RARC-ICIC groups (p < 0.001). Rates of stage pT3-4 disease were the highest in the RARC-ICIC group (p = 0.004). LOS was significantly shorter in the RARC-ICIC group (p = 0.01). Numbers of Clavien 3-5 complications were lower in the robotic groups (p = 0.012). CONCLUSIONS: RARC and ICIC is a complex procedure involving an increased operation time but with the advantages of lower estimated blood loss, transfusion rates, complications and hospital stays compared with open surgery.

Relationship between oxidative stress and detrussor overactivity: a case control study.

PURPOSE: We analyzed the role of oxidative stress in detrusor overactivity (DO) by measuring serum total antioxidant capacity (TAC), total oxidant status (TOS), binding capacity of exogenous cobalt to human albumin (IMA), serum advanced oxidation protein products (AOPP), paraoxonase (PON), and arylesterase. MATERIALS AND METHODS: The study included 38 female patients diagnosed with DO and 29 healthy female subjects forming the control group. Serum total antioxidant capacity (TAC), total oxidant status (TOS), binding capacity of exogenous cobalt to human albumin (IMA), serum advanced oxidation protein products (AOPP), paraoxonase (PON), and arylesterase were analyzed. The results of serum TAC, TOS, IMA, AOPP, PON, and arylesterase of the subjects in both groups were compared. RESULTS: There was no difference between the groups in terms of age. When compared to the control group, serum TAC and IMA levels were statisticaly lower (P  < 0,001)  and higher (P = 0,003), respectively. However, TOS, AOPP, PON, arylesterase levels were similar in both groups ( p > 0.05 ). CONCLUSION: There seems to be an association between DO and oxidative damage according to our results, this can be measured by analyzing TAC and IMA in this patient group.

The comparison of an acellular matrix graft with an autologous venous graft in the surgical treatment of Peyronie's disease.

The aim of this study was to evaluate acellular porcine pericardium (APP) and compared the results with those obtained from venous grafts in the surgical management of Peyronie's disease (PD). An APP (Group 1) and an autologous saphenous vein graft (Group 2) were used in 27 and 26 patients, respectively for Peyronie's correction. The patients' age, body mass index (BMI), operation time, duration of follow-up, preoperative and postoperative IIEF-5 scores, plaque size and loss of sensation were evaluated in both groups. There were no differences between the two groups in terms of age, BMI, follow-up period, and preoperative and postoperative IIEF-5 scores. The postoperative IIEF-5 scores were higher than the preoperative IIEF-5 scores in both groups. The operation time was significantly longer in Group 2 than in Group 1. The duration of sensation loss was shorter in Group 1 compared to Group 2. Penile shortening was similar in both groups.

Treatment approaches to small renal masses in patients of advanced age (≥75 years).

The elderly population is increasing in Turkey and across the world. With the frequent use of imaging modalities, the detection rate of coincidental small renal mass has also increased. Since small renal masses are generally not malignant, most of them can be followed up by active surveillance. In the current study, we examined the treatment options that can be offered to elderly patients with small renal masses. The optimum treatment method for patients of advanced age presenting with renal masses should be determined based on the presence of comorbidities such as age, renal function, and tumor characteristics.

Does steep Trendelenburg positioning effect the ocular hemodynamics and intraocular pressure in patients undergoing robotic cystectomy and robotic prostatectomy?

PURPOSE: To examine the effect of steep Trendelenburg position (ST) on intraocular pressure (IOP), resistive index of the central retinal artery, and venous impedance index of the central retinal vein during robotic prostatectomy and cystectomy. METHODS: A total of fifty-three male patients were included into the study (prostatectomy: 43, cystectomy: 10). During robotic surgery, the effect of the ST on IOP, resistive index of the central retinal artery (CRA-RI), and venous impedance index of the central retinal vein (CRV-VI) was prospectively examined. The measurement times of IOP are as follows: T1: before anesthesia while supine and awake; T2: anesthetized and supine; T3: anesthetized and ST; T4: anesthetized, ST, and intraperitoneal insufflation; T5: anesthetized in ST at the end of the procedure with CO2; T6: anesthetized in ST after desufflation; and T7: anesthetized supine before awakening. RESULTS: There was no difference between the IOP values of the right and left eyes in both groups. The highest IOP values were reached at T4 and T5. CRA-RI values were different, while CRV-VI values were similar at T1 and T4. CONCLUSIONS: Despite staying in the ST for a long time provided that the ophthalmologic examination was normal, ocular complication risk is low in robotic prostatectomy and cystectomy.

Impact of robotic partial nephrectomy with and without ischemia on renal functions: experience in 34 cases.

OBJECTIVE: In this study we aimed to compare renal functions in patients who underwent robotic partial nephrectomy (RPN) with on-clamp and zero- ischemia techniques. MATERIAL AND METHODS: Between 2009 and 2015, 12 off-clamp and 22 on-clamp RPN procedures were performed on a total of 34 patients in two centers. The main outcome parameters examined were serum creatinine, and estimated glomerular filtration rate (eGFR) during preoperative, immediate postoperative periods, and at postoperative 3rd months. RESULTS: There were no statistically significant differences between on-clamp and zero- ischemia groups regarding age, ASA score, BMI, PADUA and R.E.N.A.L. nephrometry scores, operation time and tumor size (p>0.05). Significant differences were found in the duration of hospital stay (3.8±0.9 days vs. 3.0±0.9 days) and amount of blood loss (85.9±49.6 mL vs. 183.3±176.2 mL) between the on-clamp and zero-ischemia groups (p<0.05). Statistically significant differences were found between preoperative and immediate post-operative periods, in terms of eGFR and serum creatinine levels in both groups. Moreover, statistically significant differences were found between preoperative and postoperative 3rd month periods, in the on-clamp group in terms of eGFR and serum creatinine levels. In the zero-ischemia group, the decrease in eGFR and serum creatinine levels at postoperative 3rd month relative to the preoperative period was not statistically significant. CONCLUSION: Off-clamp RPN technique is superior, in short-term outcomes involving renal functions, compared to on clamp approach. However, long- term data regarding the renal functions should be evaluated to arrive at a definitive decision.

Robotic partial nephrectomy for clinical stage T1 tumors: Experience in 42 cases.

The aim of this study was to evaluate outcomes of robotic partial nephrectomy (RAPN) procedures. At two centers, 42 patients underwent RAPN. Radius, Exo/Endophytic, Nearness, Anterior/Posterior, Location (R.E.N.A.L.) nephrometry and PADUA scores of patients were calculated by computed tomography (CT) or magnetic resonance imaging (MRI). Intra- and perioperative (0-30 days) complications were evaluated using modified Clavien classification. A four-arm da Vinci-S robotic surgical system was used and outcomes were evaluated retrospectively. Mean age of the patients was 52.3 ± 6.5 years. Mean tumor size was 3.1 ± 1.0 (1.4-6.6) cm. R.E.N.A.L. nephrometry and PADUA scores were 6.0 ± 1.5 and 7.5 ± 0.9, respectively. Mean surgical time was 127.7 ± 18.7 minutes and estimated blood loss was 100 ± 18.1 cc. Mean warm ischemia time was 16.0 ± 8.9 (0-30) minutes. Intraoperative complications did not develop in any patient. Median hospital stay was 3.0 (2-6) days. Except for 17 patients, hilar clamping was performed in 25 patients. Histopathology results included 34 renal cell carcinoma (22 clear cell, 7 chromophobe cell, 4 papillary cell, and 1 clear papillary cell). Oncocytoma (n = 4), adenoma (n = 1), fibroadipose tissue (n = 1), papillary epithelial hyperplasia (n = 1), and chronic pyelonephritis (n = 1) were present. Surgical margins were negative in all patients. During a median follow-up period of 15.5 ± 10.9 (3-46) months, neither local recurrence nor distant metastasis was detected. In conclusion, RAPN is a safe, minimally invasive surgical approach, with excellent surgical and oncological outcomes in T1 kidney tumors. Zero ischemia off-clamp RAPN is also safe in selected masses with the advantage of avoiding complete renal ischemia.

Removing the specimen with traction during robotic radical prostatectomy does not cause a positive surgical margin.

BACKGROUND/AIM: The aim of this study was to gauge whether removal of a specimen with traction during robot-assisted laparoscopic radical prostatectomy causes a positive surgical margin or not. MATERIALS AND METHODS: One hundred and sixty-nine patients with localized prostate cancer who underwent robot-assisted laparoscopic radical prostatectomy from 2009 to 2011 were included in the study. After dividing the patients into two groups, we recorded their characteristics and pre-op/post-op evaluations. RESULTS: There were 111 and 58 patients in groups 1 (with traction) and 2 (without traction), respectively. We evaluated the patients' ages, follow-up time, body mass index (BMI), prostate-specific antigen (PSA) values, pre-op and post-op Gleason score values, pathological stage, positive surgical margin rates, and biochemical PSA recurrence rates. There was no statistically significant difference between the groups for age, pre-op PSA values, BMI, pre-op and post-op Gleason scores, positive surgical margin rates and biochemical recurrence rates. There was a significant difference between prostate weight, tumor volume, and clinical stage. CONCLUSION: Removing the specimen with traction during robot-assisted laparoscopic radical prostatectomy does not cause a positive surgical margin. The incision should be as small as possible for cosmetic appearance.

Evaluation of oxidative stress status and antioxidant capacity in patients with painful bladder syndrome/interstitial cystitis: preliminary results of a randomised study.

PURPOSE: This study aimed to investigate oxidative stress in etiopathogenesis by analyzing serum total antioxidant capacity (TAC), total oxidant status (TOS), binding capacity of exogenous cobalt to human albumin (IMA), serum advanced oxidation protein products (AOPP), paraoxonase (PON), arylesterase, IgE, and C-reactive protein (CRP) in bladder pain syndrome/interstitial cystitis (BPS/IC). METHODS: The study included 16 female patients diagnosed with BPS/IC and 25 healthy female subjects forming the control group. A bladder biopsy was performed on all patients in the BPS/IC group by carrying out cystoscopy with hydrodistention under general anesthesia. The results of serum TAC, TOS, IMA, AOPP, PON, arylesterase, IgE, and CRP of the subjects in both groups were compared. RESULTS: The mean age of the 16 female patients in the BPS/IC group was 43.6 ± 14.5 years, and the mean age of the 25 healthy subjects in the control group was 42.0 ± 10.3 years. According to the criteria of International Society for the Study of Interstitial Cystitis (ESSIC), eight patients were classified as Type 2A, three patients as Type 2B, four patients as Type 2C, and one patient as Type 3C. In the BPS/IC group, while TAC was found significantly lower than in the control group, IMA, IgE, and CRP were found significantly higher (P < 0.05). When binary logistic regression analysis was performed, the created model was determined to have 81.3 % sensitivity and 80 % specifity. CONCLUSIONS: In the etiology of BPS/IC, mechanism of oxidative damage comes into prominence. In the diagnosis of BPS/IC, IgE, CRP, and TAC are not specific markers when used separately; however, a higher specifity and sensitivity could be reached when used jointly in the suspected patients.

Comparison of arterial blood supply to the testicles in the preoperative and early postoperative period in patients undergoing subinguinal varicocelectomy.

OBJECTIVE: Varicocele, which is the abnormal dilatation of internal spermatic veins, is known as the most surgically correctable cause of male infertility. In the evaluation of testicular arterial and venous blood supply, the scrotal colour Doppler ultrasound (CDU) is a valuable diagnostic method. The aim of this study was to investigate how the testicular blood flow is affected after varicocelectomy, and the place of scrotal CDU in the follow-up after varicocelectomy. MATERIAL AND METHODS: Thirty male patients who were diagnosed with left-sided varicocele were prospectively included in the study. Before the varicocelectomy, semen analyses were carried out, and peak systolic velocity (PSV), end-diastolic velocity (EDV), resistive index (RI) and pulsatility index (PI) were measured by CDU. In the third postoperative month, scrotal CDU and semen analysis were performed again and compared with the preoperative results. RESULTS: The arterial flow parameters PSV and EDV increased significantly, and the resistance parameters RI and PI decreased significantly, compared with the preoperative values. Sperm concentration, progressive motility and normal morphology improved in the postoperative semen analysis compared with the preoperative results. The increases in all three parameters were statistically significant. No statistically significant difference in vascular parameters was seen between the patients with improved and unimproved semen analysis. CONCLUSIONS: As confirmed by the results of semen analysis and CDU, testicular blood flow increases after varicocelectomy, resulting in the recovery of the haemodynamics of the testicle. CDU, which is generally used for diagnosis in the varicocele, can also be a valuable method of determining treatment success after surgery.

Outcomes of robot-assisted laparoscopic transperitoneal pyeloplasty procedures: a series of 18 patients.

OBJECTIVE: We evaluated outcomes of our robot-assisted laparoscopic transperitoneal pyeloplasty (RALP) procedures. MATERIAL AND METHODS: Between July 2011 and March 2014, 18 RALP procedures were performed at our instutition. Ureteropelvic junction obstruction (UPJO) diagnosis was made based on clinical presentation and intravenous urography. All patients underwent basal and diuretic isotopic renography to evaluate the degree of obstruction and impaired renal function. Anderson-Hynes dismembered pyeloplasty technique was used with a transperitoneal approach by using the da Vinci-S 4-arm surgical robot. Outcomes were assessed retrospectively. RESULTS: Mean patient age was 31.3±11.7 (13-62) years. Male: female ratio was 9: 9. All procedures were primary surgeries. Of 18 patients, 10 (55.5%) had a crossing vessel and 8 (44.5%) had intrinsic obstruction. Mean operative time was 150.4±17.2 (115-185) minutes. Mean anastomosis time was 21.4±5.5 (10-33) minutes. Mean blood loss during the operation was 33.6±17.3 (10-60) cc. Mean hospital stay was 2.6±1.0 (1-6) days. No conversion to open surgery was required. No intraoperative and perioperative (0-30 days) complication occurred. Readmission rate during perioperative period was 0%. Median follow-up was 16.6±10.3 (3-35) months. Postoperative intravenous urography and renography showed improved results in all cases. CONCLUSION: Due to our experience, RALP is a safe and feasible minimally invasive approach in patients with UPJO with excellent surgical and functional outcomes.

Low ERCC1 expression is associated with prolonged survival in patients with bladder cancer receiving platinum-based neoadjuvant chemotherapy.

PURPOSE: Excision repair cross-complementation group 1 enzyme (ERCC1) plays a key role in the removal of platinum induced DNA adducts and cisplatin resistance. Prognostic role of ERCC1 expression in the neoadjuvant setting in bladder cancer has not been reported before. We evaluated the prognostic role of ERCC1 expression in bladder cancer receiving platinum-based neoadjuvant chemotherapy. MATERIALS AND METHODS: Thirty-eight patients with muscle invasive bladder cancer who received neoadjuvant platinum-based chemotherapy were included. Clinical and histopathologic parameters along with immunohistochemical ERCC1 staining were examined and correlated with response rates and survival. RESULTS: Pathologic complete response rates were similar between patients with low and high ERCC1 expression. Median disease-free survival (DFS) was 9.3 vs. 20.5 months (P = 0.186) and median overall survival (OS) was 9.3 vs. 26.7 months (P = 0.058) in patients with high ERCC1 expression compared with those with low expression, respectively. In multivariate Cox regression analysis: pathological complete response (pCR) after chemotherapy (hazard ratio (HR) 0.1, 95% CI 0.012-0.842, P = 0.034) and high ERCC1 expression (HR 3.7, 95% CI 1.2-11.2, P = 0.019) were significantly associated with DFS. Patient age (>60 vs. ≤ 60 years) (HR 3.4, 95% CI 1.2-9.4, P = 0.018), the presence of pCR (HR 0.11, 95% CI 0.014-0.981, P = 0.048) and high ERCC expression (HR 6.1, 95 CI 1.9-19.9, P = 0.002) were significantly associated with OS. CONCLUSIONS: Our results showed that high ERCC1 expression was independently associated with shorter disease-free and overall survival in patients with bladder cancer who received neoadjuvant platinum-based chemotherapy. ERCC1 may represent a potential predictive marker for platinum-based treatment in bladder cancer.

Frequency of HCV infection in renal cell carcinoma patients.

Chronic infections with hepatitis C virus (HCV) are frequently pronounced in the etiology of malignancies especially in hepatocellular carcinoma. The association between HCV and risk of renal cell carcinoma (RCC) development has been stated recently. The authors retrospectively evaluated hepatitis serology for HCV and HBV in patients who had RCC diagnosis between 2005 and 2010 in six oncology centers. Control group was also included from the three different published studies that hepatitis serology studied in healthy people that has been living in the same geographic regions. Histologically confirmed 903 RCC cases and 5,267 healthy subjects were included the study. Median age at diagnosis of RCC was 58 (range: 26-89). There was no increase in HCV positivity in RCC patients compared to healthy control group (1.7 vs. 1.5%; P = 0.77). Frequency of HBsAg positivity was 4.4 and 4.1% in RCC and control groups, respectively (P = 0.65). There is no increase in frequency of HCV and HBsAg positivity in RCC patients. HCV positivity in RCC patients were not different from the healthy people.

Prevalence of scrotal calculi and their relationship with pain.

PURPOSE: The purpose of this study was to determine the frequency of scrotal calculi in men referred for scrotal ultrasonography (US), to identify any associated pathologies, and to investigate if any relationship exists between scrotal lithiasis and pain. MATERIALS AND METHODS: This was a retrospective study in which 4084 scrotal US examinations in 3435 men were evaluated. Scrotal US was performed using a high-frequency linear transducer. Forty patients were questioned as to whether scrotal pain was present. Patients were asked to grade their scrotal pain intensity using the Numerical Rating Scale. RESULTS: Sixty-seven of the 3435 patients with scrotal US examinations had scrotal calculi with a mean size of 3.7 ± 1.4 mm (range, 1.6-7 mm). Twenty patients with scrotal calculi had no scrotal pain. Nine patients with scrotal pain (22.5%) had no US or clinical abnormalities except scrotal calculi. CONCLUSION: The frequency of scrotal calculi was 1.95%. Approximately one-quarter of patients with scrotal calculi and pain had no additional abnormalities. Therefore, scrotal calculi should be considered in the differential diagnosis of scrotal pain.

Robot-assisted laparoscopic nerve-sparing radical cystoprostatectomy with bilateral extended lymph node dissection and intracorporeal studer pouch construction: outcomes of first 12 cases.

PURPOSE: We report our initial experience with robot-assisted laparoscopic neurovascular bundle (NVB) sparing radical cystoprostatectomy (RALRC), bilateral extended lymph node dissection (BELND) with intracorporeal Studer pouch construction for invasive bladder cancer. PATIENTS AND METHODS: After initially performing >50 cases of robot-assisted laparoscopic radical prostatectomies (RALRP), between December 2009 and April 2010, we performed 12 RALRC procedures with BELND. Bilateral (n=10) and unilateral (n=1) intrafascial NVB preservation was performed in 11 patients; nonnerve-sparing RALRC was performed in 1 patient. RESULTS: Patient characteristics and surgical and postoperative parameters were mean patient age (y): 60 (43-80); American Society of Anesthesiologists score: 2 (1-3); body mass index (kg/m(2)): 24.5 (19.3-31.2); preoperative International Index of Erectile Function (IIEF) score: 25 (5-65); operative time (h): 10 (8.1-11.5); intraoperative blood loss (mL): 455 (100-700); lymph node (LN) yield: 21.3 (8-38); hospital stay (d): 10.7 (9-16); lodge drain removal (d): 10 (9-15). Five patients received neoadjuvant chemotherapy. Surgical margins were negative in all patients. Postoperative pathologic stages were: pT(0) (n=2), pT(1) (n=1), pT(2a) (n=2), pT(2b) (n=2), pT(3a) (n=4), and pT(4a) (n=1). Positive LNs and incidental prostate cancer were detected in five and three patients, respectively. Perioperative death rate was zero. Right external iliac vein injury occurred in one patient during the performance of BELND; surgery was converted to an open procedure and the injury was repaired. Colonic fistula developed in one patient at postoperative day 40; the patient died from cardiac disease at day 60. At a mean follow-up of 7.1 ± 2.3 months, three patients died from metastatic disease. Of the available seven patients, six were fully continent and one had mild daytime incontinence. CONCLUSIONS: Although RALRC with bilateral intrafascial NVB preservation, BELND, and intracorporeal Studer pouch formation is a complex procedure, it can be performed with excellent short-term surgical and pathological outcomes and satisfactory functional results after considerable experience gained with RALRP procedures.