Abnormal Left Ventricular Filling and Postoperative Atrial Fibrillation After Cardiac Surgery

Journal of Atrial Fibrillation
Florian RaderDouglas Einstadter

Abstract

Objective: Diastolic dysfunction has been associated with the development of atrial fibrillation (AF) in the community and recently in the postoperative setting. We hypothesized that abnormal left ventricular filling predicts AF after cardiac surgery, a common marker of poor outcomes. Methods: Cohort study of 233 consecutive patients, who underwent coronary artery bypass grafting (CABG) and/or valve surgery. Early and late mitral inflow velocity (E, A) and deceleration time (DT) and early mitral annular velocity (e?) were obtained from echo within 6 months prior to cardiac surgery. Associations with postoperative AF were studied with multivariable logistic regression. Results: Postoperative AF occurred in 65 (28%) of patients, who were on average older, more likely to have had prior episodes of AF, had larger inferior vena cava diameter and shorter DT (189 ± 62ms vs. 214 ± 63ms, p=0.007). Multivariable adjusted analyses demonstrated only DT (odds ratio [OR] 0.65 (95% confidence interval [CI] 0.40-0.97), older age (OR 2.62 (95% CI 1.68 - 4.10) and prior episodes of atrial fibrillation (OR 7.20, CI 1.41-36.8) to be independent predictors of postoperative AF. Patients with a DT ≤ 200ms (n=117) had a significantly longer length of ...Continue Reading

Citations

Feb 17, 2021·The International Journal of Cardiovascular Imaging·Reham Mohamed DarweeshMohamed Khaled

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