However, VLPP measurement is still controversial, and the VLPP value can be affected by various factors, such as bladder volume, catheter insertion, catheter size, patient position, and pelvic organ prolapsed.
Cough-induced LPP (CLPP) is another way to test for stress incontinence, especially when the measurement of VLPP is impossible because not enough pressure can be produced from the Valsalva maneuver.
The volume in the bladder should not affect the VLPP as long as the detrusor pressure is kept at a level that does not affect the urethra.
The purpose of this study was to compare the VLPP and CLPP in urodynamically proven SUI women at different bladder volumes to evaluate whether the bladder volume can affect the LPP, to examine the relationship between VLPP and CLPP, and to determine if LPP would be changed by the incontinence severity to evaluate whether the bladder volume can affect the LPP.
A total of 228 women with urodynamically proven SUI who underwent serial VLPP and CLPP measurements at bladder volumes of 150, 200, 250, and 300 mL between January 2009 and December 2011 were included in this study.