A simple way to decompress the left ventricle during venoarterial bypass
Details
Serval ID
serval:BIB_303AAB18A1B3
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
A simple way to decompress the left ventricle during venoarterial bypass
Journal
Thoracic and Cardiovascular Surgeon
ISSN
0171-6425
Publication state
Published
Issued date
2008
Peer-reviewed
Oui
Volume
56
Number
6
Pages
337-341
Language
english
Abstract
OBJECTIVE: The aim of this investigation was to improve the hemodynamics during venoarterial bypass by remote decompression of the left ventricle (LV). METHODS: Venoarterial bypass was established in 5 bovine experiments (69+/-10 kg) by the transjugular insertion of a self-expanding cannula (smartcanula) with return through a carotid artery. Cardiogenic shock was simulated with ventricular fibrillation induced by an external stimulator. Left ventricular decompression was achieved by switching to transfemoral drainage of the pulmonary artery (PA) with a long self-expanding cannula. RESULTS: Initial pump flow was 4.7+/-0.9 l/min and the aortic pressure accounted for 75+/-21 mmHg. After induction of ventricular fibrillation, the pump flow dropped after 11+/-8 min to 2.5+/-0.1 l/min. Transfemoral decompression increased the pump flow to 5.6+/-0.7 l/min, while the RV pressure decreased from 27+/-9 to 3+/-5 mmHg, the PA pressure decreased from 29+/-7 to 5+/-4 mmHg, the LV pressure decreased from 29+/-6 to 7+/-2 mmHg, and the aortic pressure increased from 31+/-3 to 47+/-11 mmHg. CONCLUSIONS: Remote drainage of the pulmonary artery during venoarterial bypass allows for effective decompression of the left ventricle and provides superior hemodynamics.
Keywords
Animals, Blood Pressure, Cardiopulmonary Bypass, Catheterization, Peripheral, Cattle, Decompression, Surgical, Disease Models, Animal, Drainage, Extracorporeal Membrane Oxygenation, Heart Ventricles, Hemodynamics, Pulmonary Artery, Shock, Cardiogenic, Ventricular Fibrillation, Ventricular Pressure
Pubmed
Web of science
Create date
22/01/2009 12:01
Last modification date
20/08/2019 14:14