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[Application of one-stop diagnosis and treatment plan in percutaneous nephrolithotomy for patients with complex renal calculi].

OBJECTIVE: To evaluate the safety and efficacy of preoperative computed tomography urography (CTU) three-dimensional reconstruction, intraoperative radiology and ultrasound guidance followed by percutaneous nephrolithotomy (PCNL) in the treatment of complex renal calculi.

METHODS: We summarized the clinical data of 210 patients with complex renal calculi treated at our hospital from December 2008 to December 2011 in this retrospective study. In the one-stop diagnosis and treatment group (n = 119), the optimal puncture approach was designed according to CTU imaging and three-dimensional reconstruction. Percutaneous track was established by ultrasound and radiology guided puncture. PCNL was performed with EMS system. The control group (n = 91) underwent PCNL without radiological guidance. The success rate of puncture, mean accessing time, mean operative duration, intraoperative volume of blood loss and stone-free rate after one operative session were observed. Post-operative follow-ups were conducted until June 2012.

RESULTS: Compared to the control group, the one-stop diagnosis and treatment group showed a higher success rate of puncture [98.3% (117/119) vs 92.3% (84/91), P = 0.037], a shorter operative duration [97.8 ± 13.20 vs 110.0 ± 14.73 min, P = 0.043] and a higher stone-free rate after one operative session [92.4% (110/119) vs 83.5% (76/91), P = 0.037]. No significant difference was detected in the mean accessing time[15.3 ± 3.7 vs 13.9 ± 3.9 min, P = 0.398] or intraoperative volume of blood loss [195.8 ± 84.15 vs 263.3 ± 82.06 ml, P = 0.059]. No severe complications occurred. No recurrence of calculi was noted during the follow-up period.

CONCLUSION: One-stop diagnosis and treatment plan (CTU 3-D reconstruction plus radiology, ultrasound guidance followed by PCNL) may identify the puncture path, improve the successful rate of puncture and stone-free rates and reduce the complications of PCNL.

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