Role of the transversus perinei profundus muscle on voiding: The meaning of UPmax in patients with paralyzed urethral sphincter

Eiji Iwatsubo, Yasuki Sakamoto, Masatoshi Eto, Joichi Kumazawa

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Urodynamic study of 66 patients with caudal injury and of 7 patients who underwent saddle block was evaluated by putting emphasis on the maximal pressure of the urethra (UPmax). The static pressure of 49.7 ± 10.8 cm H2O in the membranous urethra of the patients with completely paralyzed sphincter raised the question that some active muscle that functions to open the membranous urethra must have been working during physiological urination. Urodynamic findings of detrusor sphincter relationship, monitored by pressure and electromyogram (EMG) measurement, suggested that the combined reflections of the pelvic floor muscle and urethral sphincter are present. We concluded that this would be induced by the transversus perinei profundus muscle contraction and the urodynamic interpretation would be re-integrated on the role of this muscle on active urethral opening mechanism.

Original languageEnglish
Pages (from-to)169-175
Number of pages7
JournalNeurourology and Urodynamics
Volume15
Issue number3
DOIs
Publication statusPublished - May 20 1996
Externally publishedYes

Fingerprint

Urethra
Urodynamics
Muscles
Pressure
Pelvic Floor
Urination
Electromyography
Muscle Contraction
Wounds and Injuries

All Science Journal Classification (ASJC) codes

  • Clinical Neurology
  • Urology

Cite this

Role of the transversus perinei profundus muscle on voiding : The meaning of UPmax in patients with paralyzed urethral sphincter. / Iwatsubo, Eiji; Sakamoto, Yasuki; Eto, Masatoshi; Kumazawa, Joichi.

In: Neurourology and Urodynamics, Vol. 15, No. 3, 20.05.1996, p. 169-175.

Research output: Contribution to journalArticle

@article{aad779e7711e448d83cd07d85aed28f1,
title = "Role of the transversus perinei profundus muscle on voiding: The meaning of UPmax in patients with paralyzed urethral sphincter",
abstract = "Urodynamic study of 66 patients with caudal injury and of 7 patients who underwent saddle block was evaluated by putting emphasis on the maximal pressure of the urethra (UPmax). The static pressure of 49.7 ± 10.8 cm H2O in the membranous urethra of the patients with completely paralyzed sphincter raised the question that some active muscle that functions to open the membranous urethra must have been working during physiological urination. Urodynamic findings of detrusor sphincter relationship, monitored by pressure and electromyogram (EMG) measurement, suggested that the combined reflections of the pelvic floor muscle and urethral sphincter are present. We concluded that this would be induced by the transversus perinei profundus muscle contraction and the urodynamic interpretation would be re-integrated on the role of this muscle on active urethral opening mechanism.",
author = "Eiji Iwatsubo and Yasuki Sakamoto and Masatoshi Eto and Joichi Kumazawa",
year = "1996",
month = "5",
day = "20",
doi = "10.1002/(SICI)1520-6777(1996)15:3<169::AID-NAU1>3.0.CO;2-D",
language = "English",
volume = "15",
pages = "169--175",
journal = "Neurourology and Urodynamics",
issn = "0733-2467",
publisher = "Wiley-Liss Inc.",
number = "3",

}

TY - JOUR

T1 - Role of the transversus perinei profundus muscle on voiding

T2 - The meaning of UPmax in patients with paralyzed urethral sphincter

AU - Iwatsubo, Eiji

AU - Sakamoto, Yasuki

AU - Eto, Masatoshi

AU - Kumazawa, Joichi

PY - 1996/5/20

Y1 - 1996/5/20

N2 - Urodynamic study of 66 patients with caudal injury and of 7 patients who underwent saddle block was evaluated by putting emphasis on the maximal pressure of the urethra (UPmax). The static pressure of 49.7 ± 10.8 cm H2O in the membranous urethra of the patients with completely paralyzed sphincter raised the question that some active muscle that functions to open the membranous urethra must have been working during physiological urination. Urodynamic findings of detrusor sphincter relationship, monitored by pressure and electromyogram (EMG) measurement, suggested that the combined reflections of the pelvic floor muscle and urethral sphincter are present. We concluded that this would be induced by the transversus perinei profundus muscle contraction and the urodynamic interpretation would be re-integrated on the role of this muscle on active urethral opening mechanism.

AB - Urodynamic study of 66 patients with caudal injury and of 7 patients who underwent saddle block was evaluated by putting emphasis on the maximal pressure of the urethra (UPmax). The static pressure of 49.7 ± 10.8 cm H2O in the membranous urethra of the patients with completely paralyzed sphincter raised the question that some active muscle that functions to open the membranous urethra must have been working during physiological urination. Urodynamic findings of detrusor sphincter relationship, monitored by pressure and electromyogram (EMG) measurement, suggested that the combined reflections of the pelvic floor muscle and urethral sphincter are present. We concluded that this would be induced by the transversus perinei profundus muscle contraction and the urodynamic interpretation would be re-integrated on the role of this muscle on active urethral opening mechanism.

UR - http://www.scopus.com/inward/record.url?scp=0029968386&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029968386&partnerID=8YFLogxK

U2 - 10.1002/(SICI)1520-6777(1996)15:3<169::AID-NAU1>3.0.CO;2-D

DO - 10.1002/(SICI)1520-6777(1996)15:3<169::AID-NAU1>3.0.CO;2-D

M3 - Article

C2 - 8732983

AN - SCOPUS:0029968386

VL - 15

SP - 169

EP - 175

JO - Neurourology and Urodynamics

JF - Neurourology and Urodynamics

SN - 0733-2467

IS - 3

ER -