Effects of body mass index on the outcomes of percutaneous nephrolithotomy

WOS: 000407352000017PubMed ID: 28537701Objective: To examine the the effect of body mass index (BMI) on PNL results and complications with a large number of patients. Materials and Methods: A total of 958 patients were included in the study, who underwent percutaneous nephrolithotomy in our clinic between 2008 and 2015. Patients were divided into 2 groups according to their body mass index. Patients with a BMI = 30 kg/m2 were classified as group 2 (n: 282). Achieving stone-free status or having residual stones of <= 4 mm were considered as operational success. Results: The mean age was 47.9 years for group 1 and 48.9 years for group 2 patients. At postoperative first month CT analysis, residual stone was not observed in 466 patients (69%) of group 1 and 20 (72%) patients of group 2. There was no significant difference between the groups in terms of stone-free status (p=0.348). There was no significant difference between two groups complications. Also, there was no difference between the groups for requiring additional intervention (p=0.924). No other complications were observed in the patients. Conclusions: BMI does not affect the outcomes of percutaneous nephrolithotomy as well as complication rate

Percutaneous Nephrolithotomy in Patients with Positive Urine Cultures: Do Complications Increase?

WOS: 000435448100004Objective: Our aim in this study to determine whether positive urine culture is a risk factor for infectious complications in patients undergoing percutaneous nephrolithotomy (PNL). Materials and Methods: A total of 958 patients, who underwent PNL in our clinic between 2008 and 2015, were included in the study. The patients were divided into two groups with respect to preoperative urine culture results. Group 1 included 126 patients with nonsterile urine culture. As the control group, 130 patients were randomly selected among patients with preoperative negative urine culture and named as group 2. The groups were compared in terms of demographic data, postoperative complications and additional interventions. Results: The mean age was 51.4 +/- 1.05 years in group 1 was and 48.7 +/- 1.08 years in group 2. On postoperative 1st month computed tomography, postoperative residual stone fragments were observed in 27 patients (21%) in group 1 and 26 patients (20%) in group 2. The groups were similar in terms of treatment success (p=0.878). No significant difference was found between the groups in terms of postoperative fever (p=0.46), sepsis development and intensive care need (p=0.733). Conclusion: PNL would not increase infectious complications in patients with positive urine culture

Our percutaneous nephrolitotomy experience in patients with horseshoe kidney

Objectives: Horseshoe kidney is the most common renal congenital fusion anomaly. Kidney stone formation is more common in horseshoe kidneys and some of them requires surgical procedure. So we want to evaluate the results of PNL in patients with horseshoe kidney anomaly. Matherial and method: Between January 2009-January 2014 PNL operation was performed in 6 patients with horseshoe kidney anomaly in our clinic. Success of surgery and postoperative/peroperative complications were evalutaed retrospectively. Results: No severe complications occured in any patient caused by surgery. Three patients became stonefree. One patient had less than 4 mm. residual stone, two patients had more than 4 mm. residual stone. Conclusion: PNL is safe surgical method and it can be performed successfully in patients with horseshoe kidney anomaly

Outcomes of Six Patients Who were Treated with Selective Embolisation Due to Arteriovenous Fistula Following Percutaneous Nephrolithotomy

Objective: Arteriovenous fistula (AVF) is a rare yet serious complication of percutaneous nephrolithotomy (PCNL). The aim of this study was to investigate the preoperative characteristics and postoperative outcomes of patients treated with single-session selective embolisation following a diagnosis of AVF after PCNL. Methods: Data from 1,200 patients who underwent PCNL in our department between January 2008 and December 2014 were retrospectively reviewed. Overall, six patients who experienced delayed haematuria and were diagnosed with AVF formation were included. Patient characteristics, stone burden, PCNL procedure, and perioperative and postoperative parameters were evaluated. Results: Six patients with a mean age of 52 years (range: 42-57) were admitted to hospital with delayed intermittent haematuria following PCNL. All pre-PCNL stones in these patients were staghorn in type. Four patients (66%) had multiple access. Three patients needed blood transfusion due to development of hypotension. Following the diagnosis of AVF via angiography, all six patients were treated with selective embolisation during the same session. No additional treatment was required and no complications detected. Conclusion: AVF formation is one of the causes of delayed haemorrhage after PCNL. Multiple accesses, staghorn stones, and upper calyx entry increase the risk of bleeding and AVF formation. Patients with risk factors should be informed about delayed bleeding and possible complications of PCNL