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Surface diaphragmatic electromyogram changes after laparotomy
Author(s) -
Berdah Stéphane V.,
Picaud Robert,
Jammes Yves
Publication year - 2002
Publication title -
clinical physiology and functional imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.608
H-Index - 67
eISSN - 1475-097X
pISSN - 1475-0961
DOI - 10.1046/j.1365-2281.2002.00406.x
Subject(s) - medicine , diaphragmatic breathing , laparotomy , diaphragm (acoustics) , electromyography , diaphragm muscle , surgery , anesthesia , physical medicine and rehabilitation , anatomy , respiratory system , pathology , physics , alternative medicine , acoustics , loudspeaker
The aim of this human study was to objective diaphragmatic electromyogram (EMG) changes after supraombilical laparotomy. The surface diaphragmatic EMG was recorded in patients (before and after laparotomy), and in healthy volunteers, during standardized inspiratory efforts sustained at –30 cmH 2 O (Müller manoeuvres). The quantitative EMG analysis showed significant postoperative modifications: the root mean square (RMS) increased and the median frequency (MF) decreased. These modifications are compatible with an altered diaphragmatic excitability and/or a reduced central drive to the diaphragm.