Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1994 Sep;11(3):139-43.
doi: 10.1136/emj.11.3.139.

Mechanism of closed chest cardiopulmonary resuscitation investigated by transoesophageal echocardiography

A C Pell  1 , U M Guly, G R Sutherland, D J Steedman, P Bloomfield, C Robertson
Affiliations

Mechanism of closed chest cardiopulmonary resuscitation investigated by transoesophageal echocardiography

A C Pell et al. J Accid Emerg Med. 1994 Sep.

Abstract

Transoesophageal echocardiography (TOE) was performed during closed chest cardiopulmonary resuscitation (CPR) in 18 subjects in cardiac arrest. Compression of all four cardiac chambers resulted in forward flow in the pulmonary and systemic circulations, retrograde pulmonary vein flow and incomplete mitral valve closure. Antegrade pulmonary vein flow and left ventricular filling occurred exclusively during the relaxation phase. These findings support the cardiac pump theory of CPR and are incompatible with the thoracic pump mechanism. TOE merits further investigation as a device to monitor and guide resuscitation efforts during CPR.

PubMed Disclaimer

References

    1. JAMA. 1976 Sep 13;236(11):1246-50 - PubMed
    1. Am J Physiol. 1978 Aug;235(2):H231-6 - PubMed
    1. Circulation. 1980 Feb;61(2):345-52 - PubMed
    1. Circulation. 1981 Nov;64(5):985-91 - PubMed
    1. Circulation. 1984 Jul;70(1):86-101 - PubMed