前列腺移行区与全前列腺体积比和尿动力学的关系

The relationship between the transitional zone index and urodynamics

目的:探讨前列腺中央叶和全腺体积比值与尿动力学的关系。方法:采用B型超声横断位、矢状断位检查膀胱充盈及排尿过程中的尿动力学改变,临床诊断为BPH的患者50例。结果:BPH患者的中央叶与全腺体积的比例与尿动力学改变有密切关系,当中央叶和全腺体积的比值增大时,最大流率(Qmax)降低,尿道开放压(Popen)和最大尿流率时膀胱尿道压(Pmax)升高,说明有梗阻的存在,但当中央叶与全腺体积比例超过0.5时,Qmax降低,Popen和Pmax反而降低。结论:中央叶指数与尿动力学梗阻变化的程度成正比,指数超过0.5时,尿动力常表现为逼尿肌代偿功能下降。

Objective：To study the relationship between urodynamics and the transitional zone index （TZI） .Methods：Tbe clinical data of 50 cases of BPH diagnosed by videourodynamics and clinical data. Results：TAI is closely related to the changes of urodynmics. Reduced Qmax and increased Popen and Pmax improved the existence of obstruction. But Popen and Pmax reduced following Pmax when the ratio is over 0.5. Conclusion： It is a relationship between urcdynamics and the transitional zone index （TZI）, function declined when the ratio is over 0.5.