Objective To explore the effect of multi-channel minimally invasive percutaneous nephrolithotomy in the treatment of patients with complex renal calculi in Ⅰ stage.Methods Totally 80 patients with complex renal calculi were divided into two groups according to different treatment methods.Control group was treated with single-channel minimally invasive percutaneous nephrolithotomy,while observation group was treated with multi-channel minimally invasive percutaneous nephrolithotomy.Intra-operative related conditions,postoperative comfort,pain degree and postoperative complications were compared between the two groups.Results Compared with the control group,the observation group had shorter operative time,less intra-operative blood loss,shorter postoperative hospital stay,and higher stone clearance rate in Ⅰ stage (P ＜ 0.05).There was no significant differences in the degree of pain and comfort between the two groups at 12 and 48 h after operation (P ＞ 0.05).The total incidence rate of complications in the observation group was 5 ％,which was significantly lower than 25％ of the control group (P ＜ 0.05).Conclusion For the patients with complex renal calculi,multi-channel minimally invasive percutaneous nephrolithotomy can improve the clearance rate of calculus and reduce the incidence of postoperative complications.

Objective To explore the effect of multi-channel minimally invasive percutaneous nephrolithotomy in the treatment of patients with complex renal calculi in Ⅰ stage.Methods Totally 80 patients with complex renal calculi were divided into two groups according to different treatment methods.Control group was treated with single-channel minimally invasive percutaneous nephrolithotomy,while observation group was treated with multi-channel minimally invasive percutaneous nephrolithotomy.Intra-operative related conditions,postoperative comfort,pain degree and postoperative complications were compared between the two groups.Results Compared with the control group,the observation group had shorter operative time,less intra-operative blood loss,shorter postoperative hospital stay,and higher stone clearance rate in Ⅰ stage (P ＜ 0.05).There was no significant differences in the degree of pain and comfort between the two groups at 12 and 48 h after operation (P ＞ 0.05).The total incidence rate of complications in the observation group was 5 ％,which was significantly lower than 25％ of the control group (P ＜ 0.05).Conclusion For the patients with complex renal calculi,multi-channel minimally invasive percutaneous nephrolithotomy can improve the clearance rate of calculus and reduce the incidence of postoperative complications.