The history and potential of abdominal pressure as an adjunct to standard cardiopulmonary resuscitation (CPR) is reviewed. Abdominal pressure during CPR may be either static or phasic. Static abdominal pressure redirects limited blood flow generated by chest compressions toward the heart and brain, and away from the abdominal organs and lower extremities, thus boosting coronary perfusion pressure. Phasic abdominal pressure applied whenever chest pressure is released, in counterpoint to the rhythm of chest compression—so called interposed abdominal compression (IAC)-CPR—generates blood flow by an independent abdominal pump mechanism that augments the systemic perfusion created by chest compressions. New imaging data are presented in the form of cardiac angiograms during CPR in anesthetized dogs, illustrating the effects of interposed abdominal compressions added to otherwise standard CPR. The benefits vs. risks of IAC-CPR are discussed.
blood flow, CPR, IAC-CPR, interposed abdominal compression CPR, mechanisms, radiography, ventriculograms, x-ray
Date of this Version
Babbs, Charles F. and Blevins, William E., "Abdominal Binding and Counterpulsation in Cardiopulmonary Resuscitation" (1986). Weldon School of Biomedical Engineering Faculty Publications. Paper 112.