Objective To evaluate urinary dynamics effect on benign prostatic hyperplasia(BPH) patients accompanied with diabetic mellitus(DM). Methods A total of BPH patients with lower urinary tract symptoms were Studied. These patients were divided into 2 groups:Group A consisted of 96 BPH patients while Group B consisted of 45 BPH patients combined with DM.The results of urodynamic analysis between the two groups were compared.Between the two groups,there was significant difference in the maximum cystometry capacity,the value of bladder complicance,the maximum detrusor pressure during voiding and the postvoid residual Urine capacity(P<0.05),While no significant differencethe in instability bladder.Conclusion The influence of DM on the function of the bladder in BPH patients is significant. h is important to decide which patient adapted to be operated and it may predict the prognosis of the operation by using the urodynamics study.%目的探讨BPH合并糖尿病患者的尿动力学变化.方法对45例BPH伴糖尿病患者和96例单纯性BPH患者进行尿动力学检测，并比较两组检测结果.结果糖尿病组和对照组比较，最大尿流率、膀胱感觉功能、膀胱顺应性、排尿期最大逼尿肌压力及排尿后残余尿量与对照组比较差异有统计学意义(P<0.05).不稳定膀胱发生率方面差异无统计学意义(P>0.05).结论 BPH伴糖尿病患者膀胱功能障碍更严重，应尽早联合治疗，以避免延误病情.
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