目的 探讨45°半坐卧位对良性前列腺增生患者膀胱压力容积测定的影响。方法 按照入选标准和排除标准选取临床确诊为良性前列腺增生(Benign Prostatic Hyperplasia,BPH)患者。按照二阶段交叉设计的方法将入选患者随机分入A、B两组。A组患者先进行45°半坐卧位膀胱压力容积测定(Cystometry,CMG),再进行平卧位CMG,B组患者先进行平卧位CMG,再进行45°半坐卧位CMG。统计以下CMG参数:膀胱初始感觉容量、膀胱初始尿意容量、膀胱最大容量及逼尿肌过度活动发生率。结果 与平卧位相比,45°半坐卧位对膀胱初始感觉容量、膀胱初始尿意容量、膀胱最大容量的测定无影响,且能提高逼尿肌过度活动的检出率(45°半坐卧位37.21% vs.平卧位11.63%,P=0.006)。结论 45°半坐卧位能代替平卧位作为CMG的检查体位。

Objective To investigate influence of 45 degree semi-reclining position in cystometry in patients with benign prostatic hyPerplasia(BPH). Methods Patients with BPH were enrolled according to the inclusion and exclusion criteria. They were divided into two groups randomly by two stage cross-over design. Group A took the 45 degree semi-reclining position firstly then supine position, while group B used a reverse order.CMG parameters included volume of first sensation to void (FS), volume of first urge to void (FU), maximum cystometric capacity (MCC) and detrusor overactivity(DO). Results 45 degree semi-reclining position had no effect on volume of FS、volume of FU、MCC, and could increase the detection rate of DO(45 degree semi-reclining Position 37.21% vs. supine 11.63%,P=0.006). Conclusion 45 degree semi-reclining position may be used as a substitution for supine in FC.