夜间阴茎勃起生物电阻抗容积测定的临床应用

【目的】开展夜间阴茎勃起 (nocturnalpeniletumescence,NPT)测定 ,客观区分勃起功能障碍 (erectiledysfunction ,ED)类型。【方法】利用夜间生物电阻抗容积测定 (nocturnalelectrobioimpedancevolumetricassessment,NEVA)系统对 10 8例不同原因导致ED的患者进行NPT测定。睡前将测定电极粘附在阴茎和髂部 ,记录夜间睡眠状态下阴茎血容量变化、勃起次数和勃起维持时间等 ,并根据测定数据和曲线特征对ED进行分型诊断。【结果】 6 2例自觉有晨间勃起患者的NPT测定结果显示夜间勃起平均 3 8次 /例。 46例自觉没有晨间勃起的患者中 2 9例出现勃起波形 ,平均 2 6次 /例 ;另外 17例NPT测定结果证实没有夜间勃起 ,其中重度动脉供血不足 4例 ,中度动脉供血不足 6例 ,轻度动脉供血不足 7例 (伴静脉漏者 3例 )。【结论】应用NEVA系统可以定量地评估夜间阴茎血容量、长度、粗细变化和勃起维持时间 ,可以鉴别动脉性ED和静脉性ED ,NPT测定是目前区分心理性ED和器质性ED的最有效方法

Clinical Application of the Nocturnal Penile Tumescence Test of Electrobioimpedance Volumetric Assessment

To distinguish the types of erectile dysfunction(ED) with nocturnal penile tumescence (NPT). 108 ED patients with different causes were tested with NPT monitor of nocturnal electrobioimpedance volumetric assessment (NEVA). Before sleeping electrodes were placed on the penis and hip of patient to record the changes of blood volume and erectile episode and duration, then the diagnosis of ED types could be made on the basis of the measure figures and curve characters. The NPT records of 62 patients with morning erection showed data that the average erectile number every night were 3 8 times per case. Those of 46 patients without morning erectile showed that only 29 patients could erect in the night and the average erectile number every night were 2 6 times per case; the other 17 patients had different abnormalities including 4 cases with severe insufficient artery blood supply, 6 cases with moderate insufficient artery blood supply and 7 cases mild insufficient artery blood supply (3 of them with venous leakage). Conclusion] The arterial and venous ED could be distinguished with NEVA by evaluating the change of blood volume, length and thickness of penile and duration of erectile in the night quantitatively. NEVA is one of the most effective methods to differentiate the organic ED from psychological ED today.