Urethral resistance pressure is the pressure existing in urethra during urination or other conditions generated by the detrusor muscle. It forces urine into and through the urethra in order for micturition.[1] In the urethra, part of that pressure is converted to dynamic (forward) pressure which helps voiding happen. On the other hand, static (lateral) pressure helps preventing involuntary dribbling. Decline in urethral resistance pressure is one of the contributing factors is some forms of incontinence for example stress incontinence as a result of atrophy in menopause.[2]
Decline in urethral resistance pressure is commonly associated with decline in bladder outlet.[3]
Urethral retro-resistance pressure (URP) is a new clinical measure of urethral function measured by a new urodynamic measurement system. URP is the pressure required to achieve and maintain an open sphincter.[4]
^Bissada, N.K.; Finkbeiner, A.E. (1978). Lower urinary tract function and dysfunction: diagnosis and management. Appleton-Century-Crofts. ISBN 9780838556917. Retrieved 2018-06-10.
^Chew, D.J.; DiBartola, S.P.; Schenck, P. (2010). Canine and Feline Nephrology and Urology - E-Book. Elsevier Health Sciences. ISBN 9781437723595. Retrieved 2018-06-10.
^The Toronto Notes 2012: Comprehensive Medical Reference and Review for the Medical Council of Canada Qualifying Exam Part 1 and the United States Medical Licensing Exam Step 2. 2012. ISBN 9780980939774.
^Slack, M.; Culligan, P.; Tracey, M.; Hunsicker, K.; Patel, B.; Sumeray, M. (2004). "Relationship of urethral retro-resistance pressure to urodynamic measurements and incontinence severity". Neurourology and Urodynamics. 23 (2): 109–14. doi:10.1002/nau.20010. PMID 14983420. S2CID 6174947.
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