Quality of Cardiopulmonary Resuscitation When Directing the Area of maximal Compression by Transesophageal Echocardiography During Cardiac Arrest in Swine (Sus scrofa)
Abstract
There have been no studies to determine ideal location of chest compressions during CPR, and standard hand placement is often not directly over the heart; chest compressions are often over the ascending thoracic aorta.Hypothesis:Chest compressions located over left ventricle (LV) will result in improved CPP or ROSC in a swine model of cardiac arrest.Methods:Transthoracic echo was used to mark the location of the aortic root and center of LV on animals (n=26) which were randomized to chest compressions in one of two locations.After 10mins of VFib, BLS with mechanical CPR was performed for 10mins followed by ACLS for an additional 10mins.During BLS the area of maximal compression was verified using TEE.CPP was recorded every 2mins.Results:CPP was higher in the LV group at mins 24 (p=0.003), 28 (p=0.049), and 30 (p=0.002) which were during ACLS.9 of the LV group (69%) achieved ROSC compared to 0 of the aortic root group (p<0.001).Conclusion:In our swine model, chest compressions performed directly over LV resulted in an increase in CPP during ACLS and a greater proportion of animals with ROSC.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 30, 2013
- Accession Number
- ADA596637
Entities
People
- Joe Sontgerath
- Kenton Anderson
- Leeann Zarzabal
- Maria G. Castaneda
- Susan M. Boudreau
- Toni M. Vargas
- Vikhyat S Bebarta
Organizations
- 59th Medical Wing