Effects of Left Ventricular Versus Traditional Chest Compressions in a Traumatic Pulseless Electrical Activity Model
| Autor: | Kenton L. Anderson, Jacqueline C. Evans, Susan M Boudreau, Joseph K. Maddry, Jeffrey D. Morgan, Maria G Castaneda |
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| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
Cardiac output Swine medicine.medical_treatment Heart Ventricles Hemodynamics 030204 cardiovascular system & hematology Return of spontaneous circulation 03 medical and health sciences 0302 clinical medicine Internal medicine medicine Pressure Animals Humans Cardiopulmonary resuscitation business.industry Public Health Environmental and Occupational Health 030208 emergency & critical care medicine General Medicine medicine.disease Cardiopulmonary Resuscitation Advanced life support Heart Arrest Disease Models Animal medicine.anatomical_structure Blood pressure Ventricle Echocardiography Pulseless electrical activity Cardiology business |
| Zdroj: | Military medicine. 187(3-4) |
| ISSN: | 1930-613X |
| Popis: | Background Prehospital cardiopulmonary resuscitation has commonly been considered ineffective in traumatic cardiopulmonary arrest because traditional chest compressions do not produce substantial cardiac output. However, recent evidence suggests that chest compressions located over the left ventricle (LV) produce greater hemodynamics when compared to traditional compressions. We hypothesized that chest compressions located directly over the LV would result in an increase in return of spontaneous circulation (ROSC) and hemodynamic variables, when compared to traditional chest compressions, in a swine model of traumatic pulseless electrical activity (PEA). Methods Transthoracic echocardiography was used to mark the location of the aortic root (traditional compressions) and the center of the LV on animals (n = 34) that were randomized to receive chest compressions in one of the two locations. Animals were hemorrhaged to mean arterial pressure Results Six of the LV group (35%) achieved ROSC compared to eight of the traditional group (47%) (P = .73). There was an increase in aortic systolic blood pressure (P Conclusions In our swine model of traumatic PEA, chest compressions performed directly over the LV improved blood pressures during BLS but not ROSC. |
| Databáze: | OpenAIRE |
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