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目的探讨不同频率体外冲击波碎石术(extracorporeal shock wave lithotripsy,ESWL)治疗输尿管单发结石的疗效和安全性。方法行ESWL治疗的输尿管单发结石患者268例,根据ESWL冲击波频率分为低频组142例和高频组126例,分别应用频率60、90Hz冲击波进行治疗。术后随访3个月,比较2组术后1、4周及3个月排石率、排净率及并发症发生率。结果低频组术后4周、3个月结石排净率(69.0%、85.9%)高于高频组(56.3%、75.4%)(P<0.05),术后疼痛或肾绞痛发生率(2.8%)低于高频组(8.7%)(P<0.05)。结论 60 Hz频率冲击波可提高ESWL治疗输尿管单发结石术后结石排净率,降低疼痛或肾绞痛发生率。
Objective To investigate the efficacy and safety of extracorporeal shock wave lithotripsy (ESWL) in the treatment of single ureteral calculi. Methods A total of 268 patients with ureteral calculi treated with ESWL were divided into two groups according to the frequency of ESWL shock wave: 142 cases in the low-frequency group and 126 cases in the high-frequency group. The patients were treated with shock waves of 60 and 90 Hz respectively. The patients were followed up for 3 months. The rate of stone discharge, clearance rate and complication rate were compared between the two groups at 1, 4 and 3 months after operation. Results The rates of stone clearance (69.0%, 85.9%) at 4 weeks and 3 months after operation in the low frequency group were significantly higher than those in the high frequency group (56.3%, 75.4%, P <0.05) 2.8%) was lower than the high-frequency group (8.7%) (P <0.05). Conclusion The 60 Hz shock wave can increase the rate of stone removal after ESWL treatment of ureteral calculi and reduce the incidence of pain or renal colic.