超声尿动力学对尿道最大关闭压和腹压漏尿点压及膀胱颈移动度的研究

目的应用超声尿动力学技术研究静态和动态尿道关闭压及膀胱颈移动度的关系。方法对40例真性压力性尿失禁和22例正常入进行超声和尿动力学同步观察，标化测定静态最大尿道关闭压、腹压漏尿点压和膀胱颈移动度。结果真性压力性尿失禁腹压漏尿点压与尿道最大关闭压呈明显的线性相关(r=0.49,P=0.001),其回归方程y=21.90+0.88x。压力性尿失禁尿道最大关闭压、腹压漏尿点压均值显著低于正常组(P＜0.01)。膀胱颈部移动度显著高于正常组(P＜0.01)。腹压漏尿点压＞55cmH

Study on Maximum UrethralClosure Pressure,Abdominal Leak-point Pressure and Mobility of Vesical Cervix bySonographic Urodynamics

Objective: To study maximum urethral closurepressure(MUCP)，abdominal leak-point pressure (ALPP) and mobility of vesical cervix in female genuine stress incontinence (GSI) by sonographic urodynamic. Methods：Forty patients with GSI and 22 normal women underwent simultaneous sonographic urodynamic examinations.The MUCP,the ALPP and the mobility of vesical cervix were measured with the standardized method.Results:There was a marked linear correlation between the ALPP and the MUCP (r=0.49,P=0.001),the linear regression equation:y=21.90+0.88x(x:MUCP,y:ALPP).The ALPP and MUCP in GSI group were markedly lower than those in the control group(P<0.01).According to the ALPP.the GSI patients were devided into two subgroups,ALPP≤55cm H2O pressure group(A) and＞55cm H2O pressure group(B).The rate of patients with the mobility of vesical cervix ≤1.5cm was 72% in A(vs 40% in B，n=18),while the rate of patients with the mobility of vesical cervix＞1.5cm was 59% in B(vs 27% in A,n=22).There was a significant difference between the subgroups (P＜0.05).Conclusions:The damage of static and dynamic urethral closure function was the principal pathologic change in ALPP≤55cmH2O GSI group,while the hypermobility of vesical cervix was the main change in ALPP＞55cm H2O GSI group.The abdominal leak-point pressure corresponded with the basic urethral closure function in GSI.