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目的 探讨影响体外震波碎石术 (ESWL )治疗肾盏结石因素。方法 应用 MZ- ESWL - VI型 X线定位碎石机治疗肾盏结石 4 8例 ,碎石前根据 KUB及 IVP测量肾盏肾盂夹角、肾盏长度和肾盏颈宽度。ESWL后随访 1个月至半年 ,分析肾盏解剖因素与结石排净率关系。结果 上盏结石排净率为 6 4 .7% ;中盏结石排净率为 5 1.19% ;下盏结石排净率为 5 8.3%。 18例结石残留或结石无变化中有 13例发生于盏颈狭窄、肾盏肾盂夹角 <90°或肾盏过长的情况下。结论 ESWL治疗肾盏结石 ,结石排净率与肾盏肾盂夹角是否 <90°、肾盏是否过长、盏颈有无狭窄等因素相关。
Objective To investigate the factors influencing the treatment of calyceal calculus by extracorporeal shock wave lithotripsy (ESWL). Methods Forty - eight cases of calyceal calculus were treated with MZ - ESWL - VI X - ray lithotripter. The angle of renal calluses, the length of renal calyx and the width of renal calyx were measured by KUB and IVP before gravel. Followed up for 1 month to 6 months after ESWL, the relationship between calyceal anatomy and stone clearance rate was analyzed. Results The discharge rate of upper calculus stones was 64.7%; the discharge rate of medium calculus stones was 5 1.19%; the discharge rate of lower calculus stones was 53.3%. Thirteen of 18 patients with residual stones or no change in calculus had cervical stenosis with an angle of renal calyx <90 ° or a long cornea. Conclusion ESWL treatment of calyceal calculus, stone clear rate and renal calyx renal pelvis angle is less than 90 °, the calyx is too long, there is no narrow neck and other factors.