Fate of Irrigating Fluid during Urethral Pressure Profile Measurement

Simultaneous recording of urethral pressure and cross sectional area profile.

A new technique for simultaneously recording urethral closure pressure and cross sectional area profile is described. The cross sectional area of the urethra could be measured using the field gradient principle. The procedure was performed readily in male patients and the recordings can be graphically presented during measurement. A high degree of reproducibility using this method was obtained....

Pressure-driven flow of a micro-polar fluid: measurement of the velocity profile

Impact of urethral catheterization on uroflow during pressure-flow study

Objective To investigate the impact of urethral catheterization on uroflow by comparing urodynamic parameters of free uroflowmetry versus pressure-flow study in adult patients with benign prostatic hyperplasia, female stress incontinence, lumbosacral spinal injury or spina bifida. Methods Each patient was required to perform pressure-flow study immediately following free uroflowmetry. Maximum f...

[Analysis of the absorcion's factors of irrigating fluid during transurethral resection of the prostate].

OBJECTIVES In this study it was our intention to evaluate the relation between the reabsorption of irrigating fluid and three variables: time of the intervention, volume of solution of glicina employee and weight of the fragments, during the RTU of prostate fulfilled to low hydraulic pressure. MATERIAL AND METHOD We study 74 patients that RTU of prostate was performed with suprapúbica derivat...

Micropuncture measurement of lung microvascular pressure profile during hypoxia in cats.

To determine the lung microvascular pressure profile during hypoxia, we micropunctured the subpleural microcirculation of isolated perfused cat lungs. Our procedures involved exsanguinating a cat, then cannulating its pulmonary artery, left atrium, and trachea. Using the cat's own blood, we perfused the lungs at pulmonary artery and left atrial pressures of 18 and 9 cm water, respectively, to o...