Balloon dilator in ultrasound-guided minimally invasive percutaneous nephrolithotomy lithotomy Applications

JIANG Tao; JIN Yi

doi:10.3969/j.issn.1009-2811.2013.01.013

Abstract： Objective We evaluated the effectiveness and safety of balloon dilation in ultrasound-guided minimally invasive PCNL for the treatment of renal calculi. Methods Ninety-eight patients with renal calculi were enrolled and divided into two groups. These patients underwent ultrasound-guided PCNL and were performed with sequential fascial dilators (Group I, n = 48) or balloon dilators (Group II, n = 50). Preoperative and postoperative evaluations of calculi included color ultrasound, plain abdominal radiography, and computed tomography. Intraoperative blood loss was evaluated by analyzing the decrease in hemoglobin compared with the baseline level. Manipulation speed was measured by tract establishment duration and operation duration. Results The two groups were compared in terms of age, gender, calculi location, and calculi burden (P > 0.05, all). Tracts in all patients were successfully established in the first attempt, and no rupture of the colon or pleura occurred. Balloon dilation was significantly superior to sequential fascial dilation in shortening the cannulation duration (F = 100.390, P = 0.000) and operation duration (F = 4.038, P = 0.047),increasing the stone-free rate ( = 4.443,P = 0.035), avoiding rupture of the renal collection system ( = 5.488,P = 0.019), and reducing intraoperative blood loss (F = 9.201,P = 0.003). Conclusion Compared with sequential fascial dilation, balloon dilation is more applicable in ultrasound-guided minimally invasive PCNL.