Hemodynamic Effects and Clinical Outcomes of Left Atrial Veno-Arterial Extracorporeal Membrane Oxygenation (LAVA-ECMO) in Cardiogenic Shock
Recommended Citation
Villablanca PA, Fadel RA, Giustino G, Jabri A, Basir MB, Cowger J, Alaswad K, O'Neill B, Gonzalez PE, Gyzm GG, Frisoli T, Lee J, Aurora L, Gorgis S, Nemeh H, Apostolou D, Alqarqaz M, Koenig GC, Aronow HD, Fuller B, Aggarwal V, and O'Neill W. Hemodynamic Effects and Clinical Outcomes of Left Atrial Veno-Arterial Extracorporeal Membrane Oxygenation (LAVA-ECMO) in Cardiogenic Shock. Am J Cardiol 2024.
Document Type
Article
Publication Date
2-1-2025
Publication Title
The American journal of cardiology
Abstract
Left atrial veno-arterial extracorporeal membrane oxygenation (LAVA-ECMO) in CS is a novel mechanical cardiocirculatory support strategy that provides robust cardiocirculatory support and simultaneous left and right atrial venting via a multi-fenestrated transeptal catheter. We performed a single-center retrospective analysis of all patients aged ≥ 18 years with CS who underwent LAVA-ECMO at a quaternary care institution from 2018-2023. Clinical outcomes as well as pre- and post-hemodynamics were evaluated. A total of 68 patients were analyzed (75% male, 72% white, median age 63). Indications for LAVA-ECMO were CS due to myocardial infarction (29.4%), biventricular failure (26.5%), and/or valvular heart disease (26.5%). Trans-septal puncture was guided by intracardiac echocardiography (86.8%) or transesophageal echocardiography (13.2%). Arterial cannulation was performed via transcaval access in 25% of the cases. Post-LAVA-ECMO cannulation was associated with substantial improvement in the hemodynamics within 24 hours post cannulation, including reduction in right atrial pressure (absolute mean difference: -5.0 mmHg, p<0.001), mean pulmonary artery pressure (-9.0 mmHg, p<0.001), pulmonary capillary wedge pressure (-10.0 mmHg, p<0.001), and LV end-diastolic pressure (-14.0 mmHg, p<0.001). Survival to decannulation occurred in 69.1%, while 30-day survival from cannulation was 51.5%. In-hospital all-cause mortality was 51.5%. Only 5 patients (7.4%) required additional MCS (4 Impella, 1 VAV-ECMO). There were no complications related to transeptal placement of the venous ECMO cannula. In conclusion, LAVA-ECMO, a MCS strategy providing bi-atrial drainage, appears to also provide simultaneous LV venting as demonstrated by improved invasive hemodynamics. Although the procedure itself appears safe, with no direct complications to interatrial septal cannulation, post-cannulation complications remain high, and further studies are needed to evaluate the full safety profile of LAVA-ECMO compared to alternative MCS strategies.
Medical Subject Headings
Humans; Extracorporeal Membrane Oxygenation; Male; Shock, Cardiogenic; Female; Middle Aged; Retrospective Studies; Hemodynamics; Aged; Heart Atria; Treatment Outcome
PubMed ID
39547341
ePublication
ePub ahead of print
Volume
236
First Page
79
Last Page
85