Clinical research of multi-channel minimally invasive percutaneous nephrolithotomy in combination with Yag laser in complex renal calculi

Abstract

Objective To investigate the effect of multi-channel minimally invasive percutaneous nephrolithotomy in combination with Yag laser in complex renal calculi operation. Methods Eighty six complex renal calculi patients were divided into two groups, study group (46 cases) was treated with multi-channel minimally invasive percutaneous nephrolithotomy combined with Yag laser, control group was treated with single-channel minimally invasive percutaneous nephrolithotomy combinated with extracorporeal shock wave treatment. Comparison of gravel removed time, stone clearance rate,postoperative hemoglobin decreasing rate, blood transfusion rate of surgery,length of stay time and operative complications were done between the two groups, the results were analysed statistically. Result The gravel removed time was (102±23) min in study group, and ( 121 ± 28) min in control group, there was no significant difference between the two groups(P ＞ 0.05 ). In study group, postoperative hemoglobin decreasing rate was 6.5%(3/46), blood transfusion rate of surgery was 17.4% (8/46), stone clearance rate was 82.6%( 38/46 ), length of stay time was (5.6 ± 1.7) d,while those in control group was 12.5%(5/40),22.5%(9/40),72.5%(29/40), (7.4 ± 1.8) d,respectively. There was statistical significance between the two groups(P＜ 0.05 ). Conclusion Multi-channel minimally invasive percutaneous nephrolithotomy in combination with Yag laser in the treatment of complex renal calculi has the shorter operation time, less blood loss,less complications and higher stone clearance rate, and is worthy of promotion. Key words: Kidney calculi; Nephro stomy,percutaneous; Yag laser