Drach G W, Layton T N, Binard W J
J Urol. 1979 Aug;122(2):210-4. doi: 10.1016/s0022-5347(17)56333-8.
We performed 126 studies of replicate voiding in 7 individuals and 552 observations in normal, abnormal or treated male populations with a disposable device that measures peak flow and volume voided. These observations have led us to suggest that a voided volume of 150 ml. be used as the minimum acceptable volume for studies of male subjects in which peak flow is used to define normal versus abnormal voiding. At volumes greater than 150 ml. a straight line describes the relationship between volume voided and peak flow as accurately as the previously suggested hyperbolic curve. Increasing age of men again reveals progressive decrease in peak flow rate no matter what volume is voided. Comparison of peak flow rate, volume voided and age by 3-dimensional graphing was attempted but was found unsuccessful for clinical use. However, 3 biaxial linear graphs may be used to chart effectively the 3 parameters (age, volume and peak flow) and thereby judge normality or abnormality of peak flow rate for any age and volume voided.
我们使用一种可测量峰值流速和排尿量的一次性装置，对7名个体进行了126次重复排尿研究，并对正常、异常或接受治疗的男性群体进行了552次观察。这些观察结果使我们建议，在以峰值流速来定义正常排尿与异常排尿的男性受试者研究中，将150毫升的排尿量作为可接受的最小体积。在大于150毫升的体积下，一条直线与先前建议的双曲线一样准确地描述了排尿量与峰值流速之间的关系。无论排尿量多少，男性年龄的增长都会再次显示出峰值流速的逐渐下降。我们尝试通过三维绘图比较峰值流速、排尿量和年龄，但发现其不适合临床应用。然而，三个双轴线性图可用于有效地绘制这三个参数（年龄、体积和峰值流速），从而判断任何年龄和排尿量下峰值流速的正常或异常情况。
