Therapeuticevaluation by standard channel and tiny channel of percutaneous nephrolithotomy in the therapy of renal calculi

Objective To compare the therapy effect and safety by PCNL(24F) and MPCNL(16F) in the therapy of renal calculi.Methods 530 patients(PCNL group 220 cases,MPCNL group 310 cases).The indicators of operative time and stone-free rate and complications are comparatively analyzed in two groups patients.Results Operation time in PCNL group significantly was shorter than MPCNL group(P 0.001).When kidney effusion1.5cm,Ⅰ period calculi net rate in MPCNL group was higher than PCNL group(P 0.05).Hemoglobin decline rate of postoperative: PCNL group was significantly higher than MPCNL group(P 0.05).When kidney effusion1.5cm,Ⅰ period calculi net rate in PCNL group obviously higher than MPCNL group(P 0.05).Hemoglobin decline rate of postoperative: PCNL group for 7.4% and MPCNL group for 6.6%(P 0.05).To compare the differences of aerage hospital time and infection in two groups postoperative was not statistically significant(P 0.05).Conclusion PCNL(24F) and MPCNL(16F) in the therapy of renal calculi have different advantages.Appropriate selection procedures or both combined application can improve operative efficacy.