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目的:探讨微通道经皮肾镜取石术(MPNL)治疗肾下盏结石的方法、疗效,以及适应证的选择。方法:采用MPNL治疗肾下盏结石79例,结石大小为10~31mm,平均(19.0±4.6)mm。在X线或B超引导下,采用分步或一期手术行MPNL弹道碎石或钬激光碎石取石。结果:73例一次手术取净结石(取净率92.4%),4例两次手术后取净结石,总无石率97.5%。手术时间22~96min,平均(38±13)min。无输血,无严重并发症发生。结论:MPNL是治疗肾下盏结石的一种疗效好、安全性高的手术方法;对于直径大于10mm,特别是直径>20mm的肾下盏结石,MPNL可作为首选的治疗方法。
Objective: To investigate the method, efficacy and indications of microchannel percutaneous nephrolithotomy (MPNL) for the treatment of lower calyx stones. Methods: 79 cases of inferior calyceal calculus were treated with MPNL. The stone size was 10 ~ 31mm, with an average of (19.0 ± 4.6) mm. Under the guidance of X-ray or B-ultrasonography, MPNL ballistic lithotripsy or holmium laser lithotripsy were performed by step or phase operation. Results: Totally 73 neoplasms were surgically removed (92.4% of total neoplasms). Four neoplasms were taken after two surgeries and the total stoneless rate was 97.5%. The operation time was 22-96 minutes, with an average of (38 ± 13) min. No blood transfusion, no serious complications. CONCLUSIONS: MPNL is a safe and effective surgical method for the treatment of lower calyx stones. MPNL is the preferred treatment for lower calyx stones greater than 10 mm in diameter and especially> 20 mm in diameter.