scholarly journals Breathing synchronized electrical stimulation of the abdominal muscles in patients with acute tetraplegia

2012 ◽  
Vol 57 (SI-1 Track-R) ◽  
Author(s):  
T. Schauer ◽  
R. Stephan ◽  
A. Niedeggen ◽  
T. Liebscher ◽  
J. Dorien ◽  
...  
Keyword(s):  
Electrical Stimulation ◽  
Abdominal Muscles ◽  
Stimulation Of

scholarly journals Breathing-synchronised electrical stimulation of the abdominal muscles in patients with acute tetraplegia: A prospective proof-of-concept study

2016 ◽  
Vol 39 (6) ◽  
pp. 628-637
Author(s):  
Thomas Liebscher ◽  
Thomas Schauer ◽  
Ralph Stephan ◽  
Erik Prilipp ◽  
Andreas Niedeggen ◽  
...  
Keyword(s):  
Electrical Stimulation ◽  
Abdominal Muscles ◽  
Proof Of Concept ◽  
Concept Study ◽  
Stimulation Of

scholarly journals Optimal electrode placement for noninvasive electrical stimulation of human abdominal muscles

2007 ◽  
Vol 102 (4) ◽  
pp. 1612-1617 ◽  
Author(s):  
Julianne Lim ◽  
Robert B. Gorman ◽  
Julian P. Saboisky ◽  
Simon C. Gandevia ◽  
Jane E. Butler
Keyword(s):  
Electrical Stimulation ◽  
Magnetic Stimulation ◽  
Esophageal Pressure ◽  
Abdominal Muscle ◽  
Electrode Placement ◽  
Abdominal Muscles ◽  
Gastric Pressure ◽  
Residual Capacity ◽  
Injured Patients ◽  
Stimulation Of

Abdominal muscles are the most important expiratory muscles for coughing. Spinal cord-injured patients have respiratory complications because of abdominal muscle weakness and paralysis and impaired ability to cough. We aimed to determine the optimal positioning of stimulating electrodes on the trunk for the noninvasive electrical activation of the abdominal muscles. In six healthy subjects, we compared twitch pressures produced by a single electrical pulse through surface electrodes placed either posterolaterally or anteriorly on the trunk with twitch pressures produced by magnetic stimulation of nerve roots at the T10 level. A gastroesophageal catheter measured gastric pressure (Pga) and esophageal pressure (Pes). Twitches were recorded at increasing stimulus intensities at functional residual capacity (FRC) in the seated posture. The maximal intensity used was also delivered at total lung capacity (TLC). At FRC, twitch pressures were greatest with electrical stimulation posterolaterally and magnetic stimulation at T10 and smallest at the anterior site (Pga, 30 ± 3 and 33 ± 6 cmH2O vs. 12 ± 3 cmH2O; Pes 8 ± 2 and 11 ± 3 cmH2O vs. 5 ± 1 cmH2O; means ± SE). At TLC, twitch pressures were larger. The values for posterolateral electrical stimulation were comparable to those evoked by thoracic magnetic stimulation. The posterolateral stimulation site is the optimal site for generating gastric and esophageal twitch pressures with electrical stimulation.

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