A meta analysis on the treatment of renal calculus by percutaneous nephroscope set and retrograde intra renal surgery

This meta analysis was focused on the comparison using percutaneous nephroscope set and retrograde intra renal surgery to treat renal calculus. The data were obtained from PubMed and Web of Science databases. The published time of literature were from March, 2014, the language included Chinese and English. The literature selection strategies were based on the evaluation and meta analysis on the preferred reporting items. The subgroup analysis comparison criteria were percutaneous nephrolithotomy (PCNL) minimally invasive percutaneous procedures (MIPPs), which included the comparison among mini-PCNL, micro-PCNL and RIRS. The research objects were selected from adult population. The searching words included: percutaneous nephrolithotomy, retrograde intrarenal surgery, percutaneous lithotripsy, RIRS, miniPCNL, micropercutaneous nephrolithtomy, flexible ureteroscopy. The efficiency of calculus removal, complication rate and hemoglobin decline rate after treatment were compared. PCNL had higher efficiency of calculus removal, but also had relatively higher complication rate, hemorrhage and longer hospitalization time. The standard efficiency of calculus removal for PCNL was higher than that of RIRS, while RIRS was better than MIPPs. Considering the complication and low efficacy, if the calculus was less than 2 cm, we should consider the use of RIRS standard treatment.