Recumbent position versus prone position in percutaneous nephrolithotomy in China: a Meta analysis

Abstract

Objectives To systematically review the clinical therapeutic efficacy and safety of recumbent position versus prone position in percutaneous nephrolithotomy (PCNL) in China. Methods CBM, CNKI, VIP and CSPD without language restriction from their establishment to October 2015 were searched to collect the controlled trials about recumbent position versus prone position PCNL in the treatment of upper urinary tract stones in China, and the references of those controlled trials were also searched by hand. After study selection, assessment and data extraction conducted by two reviewers independently, were analyzed by Cochrane Collaboration's RevMan 5.3 software. Results Six studies were included. Compared with the prone position PCNL, recumbent position PCNL had shorter operation blood loss, complication incidence rate, but no significant difference was found with regard to operative time, stone clearance rate. Conclusions Recumbent position PCNL is a safe and effective method for upper uretera1 calculi. Compared with prone position PCNL, recumbent position PCNL can reduce operation blood loss, complication incidence rate, without increasing other complications. Because of the small number of the included studies, which weakens the strength of the evidence of our results, there is a moderate possibility of selection bias, performance bias and publication bias in this Meta-analysis. More high-quality and large-sample studies are needed to provide further evidences in evidence-based medicine. Key words: Key words Kidney Calculi; Nephrostomy, Percutaneous; Posture; Meta-Analysis