Siroky M B, Olsson C A, Krane R J
J Urol. 1980 Feb;123(2):208-10. doi: 10.1016/s0022-5347(17)55859-0.
Using the previously demonstrated statistical relationship between urinary flow rate and bladder volume we tested 53 patients with clinically evident outflow obstruction by uroflowmetry. Of these patients 32 were tested before and after a successful operation for outflow obstruction. In 98 per cent of the maximum flow measurements in obstructed patients the nomogram values were less than minus 2 standard deviations, indicating a clear separation from the normal population. After operative relief of the obstruction repeat uroflowmetry demonstrated all values to be in the normal range. Furthermore, in each patient the peak flow rate value increased an average of 2.7 standard deviations (minimum increase of 1.5 standard deviations). No significant correlation could be demonstrated between the size of the prostatic resection and the degree of urinary flow impairment. The use of a flow rate nomogram appears to differentiate reliably normal from obstructed individuals and also is highly useful in the postoperative followup of urinary outflow obstruction.
利用先前证实的尿流率与膀胱容量之间的统计学关系，我们通过尿流率测定法对53例临床上有明显流出道梗阻的患者进行了检测。其中32例患者在成功进行流出道梗阻手术前后接受了检测。在梗阻患者最大尿流率测量值的98%中，列线图值小于负2个标准差，表明与正常人群有明显差异。梗阻解除术后再次进行尿流率测定显示所有值均在正常范围内。此外，每位患者的最大尿流率值平均增加2.7个标准差（最小增加1.5个标准差）。前列腺切除的大小与尿流受损程度之间未显示出显著相关性。使用尿流率列线图似乎能够可靠地区分正常人和梗阻患者，并且在尿流出道梗阻的术后随访中也非常有用。
