Experimental Venoarterial Extracorporeal Membrane Oxygenation Induces Left Ventricular Dysfunction
2016 (English)In: ASAIO journal (1992), ISSN 1058-2916, E-ISSN 1538-943X, Vol. 62, no 5, 518-524 p.Article in journal (Refereed) Published
Venoarterial extracorporeal membrane oxygenation (VA-ECMO) has experienced an increased use in acute cardiac failure. There are some reports on negative effects of VA-ECMO on cardiac function, such as left ventricular (LV) dilatation and cardiac stun, but the support in the literature is scarce. This study investigates the effects of experimental VA-ECMO on LV function in both peripheral and central cannulation. Ten pigs were randomized to VA-ECMO by either peripheral cannulation through the femoral vessels or central cannulation in the right atrium and ascending aorta. Left ventricular performance was measured with pressure-volume catheters during 5 hours of VA-ECMO. The LV enddiastolic and end-systolic volumes increased comparably in both groups during ECMO. Left ventricular ejection fraction, stroke work, and maximum rate of pressure change decreased comparably in both groups as a function of time on ECMO. The site of cannulation had no impact on the LV response to ECMO. In conclusion, VA-ECMO increased LV volumes and reduced LV function, irrespective of cannulation site in this experimental model. Reduced LV ejection fraction and stroke work indicated LV dysfunction during ECMO.
Place, publisher, year, edition, pages
2016. Vol. 62, no 5, 518-524 p.
extracorporeal membrane oxygenation, cannulation, left ventricle, left ventricular assist device
Cardiac and Cardiovascular Systems
IdentifiersURN: urn:nbn:se:uu:diva-310680DOI: 10.1097/MAT.0000000000000392ISI: 000387874900006PubMedID: 27195745OAI: oai:DiVA.org:uu-310680DiVA: diva2:1062929