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Abstract
This study was undertaken to determine the effect of interposed abdominal compressions
(IAC) during cardiopulmonary resuscitation (CPR) on gastric insufflation when the
airway is not secured with an endotracheal tube. A canine model was used in which
a common ventilation pressure was applied to separate cuffed esophageal and tracheal
tubes. Gas entering the stomach was collected by a pre-placed gastrostomy tube leading
to a bell spirometer. Gas entering the lungs was measured with a Wright Respirometer® in series with the endotracheal tube. During standard CPR, measurable gastric gas
volume was collected in 28 of 30 trials (mean 215 ± 93 ml/ventilation). During IAC-CPR,
in which abdominal pressure was maintained during ventilation after every 5th chest
compression, measurable gastric gas was collected in 15 of 30 trials (mean 40 ± 11
ml/ventilation). Interposed abdominal compressions as an adjunct to standard CPR may
not only be of hemodynamic benefit, but may also reduce the incidence of gastric insufflation
and attendant complications.
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Article Info
Publication History
Accepted:
September 24,
1984
Received in revised form:
September 24,
1984
Received:
August 6,
1984
Footnotes
☆Supported in part by research grant HL-29398 and Research Career Development Award HL-00587 (Dr. Babbs) from the National Heart, Lung, and Blood Institute, U.S. Public Health Service.
☆☆Presented at the Fifth Purdue Conference on CPR and Defibrillation. West Lafayette, Indiana, September 25–26, 1984.
Identification
Copyright
© 1985 Published by Elsevier Inc.
