Ultrasound-guided percutaneous nephrolithotomy (PCNL) success rates in patients with elevated body mass index: a comparative study
We present a prospective analysis and comparison of ultrasound-guided PCNL in patients with normal and increased body mass index. We performed a prospective comparison of patients who underwent ultrasound-guided PCNL to remove renal stones by a single surgeon between 2020 and 2022. Patients with BMIs greater than 30 (mean 33.87—obese) were compared to those with BMI s less than 30 (mean 25.69—non-obese). Demographic, perioperative, and follow-up data were collected, analyzed, and included in this study. Total of 98 consecutive patients, with 49 patients in each group were analyzed. No statistically significant differen...
Source: Urolithiasis - September 9, 2023 Category: Urology & Nephrology Source Type: research
Timing of midstream urine culture before endourological procedure —can we do better?—A comparative study
In this study, we sought to investigate the role of positive UC in the 90 days prior to surgery (90PreOp) in predicting postoperative infectious complications in comparison to a single positive preoperative UC (PreOP). We compared the correlation between positive PreOp UCs and positive 90PreOp UCs with postoperative urosepsis, and a positive UC obtain proximal to obstru ction (Prox UC) during percutaneous nephrolithotomy, ureteroscopy and a placement of nephrostomy tube or ureteral stent. Data from 140 consecutive patients were collected. PreOp UCs were positive in 15 (11%) of patients versus 31 of 140 (22%) positive 90P...
Source: Urolithiasis - August 27, 2023 Category: Urology & Nephrology Source Type: research
Comparative analysis of re-entry malecot and nelaton catheters after standard percutaneous nephrolithotomy in adult patients: a cross-sectional study
In conclusion, if a second procedure is planned, a reentry malecot catheter may be preferred. Apart f rom this situation, nelaton catheters should be preferred because they are similar to reentry catheters in terms of effectiveness, and side effects and are more economical than reentry catheters in terms of cost. (Source: Urolithiasis)
Source: Urolithiasis - August 24, 2023 Category: Urology & Nephrology Source Type: research
Can radiological scores predict difficulties in removal of encrusted ureteral stents?
AbstractIn the present study, we aimed to report our single-center experience in encrusted ureteral stent management and to compare the utility of two different scoring systems in patient management. This is a retrospective study of patients who underwent various surgical procedures to remove encrusted ureteral stent. Encrusted stent grading was performed using KUB and FECal grading sytems. FECal grading system scored from Grade 1 to Grade 5 according to stone size, location, and degree of stent incrustation and the KUB score is the sum of the stone burden scores of three different parts of an encrusted stent within the ki...
Source: Urolithiasis - August 23, 2023 Category: Urology & Nephrology Source Type: research
Percutaneous nephrolithotomy in patients with incidental encountered purulent urine at initial puncture
AbstractWe are reporting the 39 patients ’ outcomes who underwent percutaneous nephrolithotomy and purulent urine encountered at the initial steps of surgery. Of 873 patients who underwent PCNL, 48 had purulent fluid during the initial puncture. After excluding those at risk for infection, we studied 39 patients’ preoperative and posto perative variables-including postoperative day (POD) 1, 3, 5 fevers. In group 1, 21 patients had a nephrostomy tube placed, and PCNL was postponed. In group 2, 18 patients had successful stone removal in the first session. All surgeries were successful, with no septic events during follo...
Source: Urolithiasis - August 19, 2023 Category: Urology & Nephrology Source Type: research
Optimal placement of flexible ureteral access sheath in retrograde intrarenal surgery
This study aims to explore the optimal location of flexible ureteral access sheath (f-UAS) in retrograde intrarenal lithotripsy (RIRS). RIRS model was built by AutoCAD 2011 software, and imported COMSOL 5.6 software to computer simulation. An RIRS model was constructed in vitro to analyze the distribution pattern of stone fragments and compare the weight of stone fragments carried out by the irrigation fluid when the f-UAS is in different positions. Computer simulation showed that the highest flow of irrigation fluid was in the channel of flexible ureteroscopy (f-URS) and in the lumen of f-UAS. From the f-URS to the renal ...
Source: Urolithiasis - August 17, 2023 Category: Urology & Nephrology Source Type: research
Correction to: Effect of a high-citrate beverage on urine chemistry in patients with calcium kidney stones
(Source: Urolithiasis)
Source: Urolithiasis - August 16, 2023 Category: Urology & Nephrology Source Type: research
Treatment of donors ’ asymptomatic small kidney stones and post-transplant outcomes: a meta-analysis
AbstractKidney donors with asymptomatic small kidney stones were increasingly accepted in kidney transplantation (KT) due to organ shortage and advances in endoscopic urology. However, recipients ’ clinical outcomes using these donors remained unclear. We conducted a meta-analysis to summarize transplant outcomes using these donors with asymptomatic small kidney stones. Finally, 15 retrospective studies were included. The prevalence of asymptomatic small kidney stones was 5.3% (95%CI 3.5– 7.8%). After transplantation, low incidence of urinary fistula (0%, 95%CI 0–1.0%), obstruction (0%, 95%CI 0–1.1%), relapse of ki...
Source: Urolithiasis - August 16, 2023 Category: Urology & Nephrology Source Type: research
Correction to: Effect of a high-citrate beverage on urine chemistry in patients with calcium kidney stones
(Source: Urolithiasis)
Source: Urolithiasis - August 16, 2023 Category: Urology & Nephrology Source Type: research
