Timing

RESULTS: The study included a total of 98 consecutive pa- tients, with 49 patients in each group. No statistically signi fi cant differ-ences were observed in terms of stone volume (p [ 0.085), stone density (p [ 0.5590), location of renal access (p [ 0.108), surgery duration (p [ 0.38), blood loss (p [ 0.54), or laboratory changes after surgery (p [ 0.60). 91.84 precent of obese patients were stone- free per CT scan at follow- up, compared to 77.5 percent of normal- weight patients (p [ 0.089). According to Clavien Dindo classi fi cation, six patients in the non-obese group experienced grade II (10%) and grade III (2%) complications, as opposed to fi ve patients in the obese group with grade I (2%), grade II (6%), and grade III (2%) complications. CONCLUSIONS: There was no signi fi cant correlation between body mass index and the or safety of ultrasound- guided PCNL. Although more challenging, a higher BMI should not be an impediment to performing this approach. This method is safe, with no increased incidence of postoperative complications or compromise in stone- free status post- operatively, and can diminish or even avoid both patient's and medical team's exposure to ionizing radiation.