Perfil de presión uretral

Abstract

The “urethral pressure profile” is a graph indicating the intraluminal pressure along the length
 of the urethra and the “urethral closure pressure profile” is given by the substraction of
 intravesical pressure (pves) from urethral pressure (pura). Both aim to represent the ability
 of the urethra to prevent involuntary leakage of urine on efforts or exertion. The continuous
 measurement of pves also allows the detection of detrusor contractions. In this article we will
 refer to its terminology, the necessary equipment to carry it out, the examination technique,
 its morphology in women and men, and the stress urethral pressure profile in women. The
 most important parameter is the “maximum urethral closure pressure”, which is the maximum
 difference between pura and pves; a value ≤ 20 cm H2O participates in the urodynamic definition
 of intrinsic sphincter deficiency (together with an abdominal leak point pressure ≤ 60 cm H2O).
 However, it must be taken into account that the different techniques used for its measurement
 has led to inconsistent results, which makes their acceptance in clinical practice difficult.