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Computer analysis of the electromyogram of the external urethral sphincter
Author(s) -
Morita Takashi,
Kondo Shun,
Tsuchida Seigi
Publication year - 1983
Publication title -
neurourology and urodynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.918
H-Index - 90
eISSN - 1520-6777
pISSN - 0733-2467
DOI - 10.1002/nau.1930020110
Subject(s) - medicine , electromyography , pudendal nerve , phentolamine , urethral sphincter , external anal sphincter , anesthesia , sphincter , urology , urethra , physical medicine and rehabilitation , anatomy , surgery , anal canal , rectum , propranolol
The electromyograms of canine external urethral sphincter were recorded and analyzed with a microcomputer (Nihon Koden Co., ATAC 450). There was no observable change in the electromyographic activity of the external urethral sphincter in response to an α‐blocker (phentolamine) or a β‐blocker (propanolol). However, there was complete abolition of electromyographic activity following the administration of neuromuscular blocking agents (suxamethonium or pancuronium). The opinions that the α‐adrenerpic system acts predominantly on the external urethral sphincter via the pudendal nerve cannot be supported by the data obtained in this study.