Logistic Regression Model for Predicting Stone-Free Rate After Minimally Invasive Percutaneous Nephrolithotomy

Does the presence of hydronephrosis have effects on micropercutaneous nephrolithotomy?

“…Furthermore, operative time is an important factor which may affect surgical outcomes and anesthesia-related complications. Several published clinical trials focusing this issue demonstrated that many factors such as hydronephrosis may influence the operation time and success rate of percutaneous nephrolithotomy surgery [5,10,11]. Recently, Akman et al reported their retrospective clinical study evaluating the variables those influenced operative time for standard PNL procedures in their large series consisting of 1,897 cases.…”

Clinical Efficacy, Safety, and Costs of Percutaneous Occlusive Balloon Catheter-Assisted Ureteroscopic Lithotripsy for Large Impacted Proximal Ureteral Calculi: A Prospective, Randomized Study

“…In the prospective study that assesses mini-PNL outcomes, Zhu concluded that obstruction or hydronephrosis could decrease the stone-free rate. 20 Binbay et al 21 also found that the presence of hydronephrosis was associated with the residual stone burden. In our study, all patients had hydronephrosis of a varying degree.…”

Pyelocaliceal Distribution of Kidney Stones Used as an Outcome Predictor in Percutaneous Nephrolithotomy After Being Evaluated with Preoperative and Postoperative CT Scan

“…[10][11][12][13][14][15] Thomas and colleagues developed the Guy Stone score to grade the complexity of each case based on X-ray findings. 13 Smith and colleagues 14 proposed a nomogram that might predict the PCNL result in accordance with clinical and radiological data that support the idea that lithiasis burden is the most accurate factor to predict the SFR.…”

“…17 Some authors define stone burden as the maximum diameter in the kidney, ureter, and bladder radiograph (KUB), 10 while others define stone burden as the maximum diameter in the CT. 11 Others measure the stone area (mm 2 ) in the KUB, 14 whereas Jeong and colleagues 15 measure the stone volume (mm 3 ) in the CT.…”