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- Title
Noninvasive Detection of Left-Ventricular Systolic Dysfunction by Acoustic Cardiography in Atrial Fibrillation.
- Authors
Dillier, Roger; Kobza, Richard; Erne, Susanne; Zuber, Michel; Arand, Patricia; Erne, Paul
- Abstract
Objectives. Assessment of left ventricular (LV) systolic function in patients with atrial fibrillation can be difficult. Acoustic cardiography provides several parameters for quantifying LV systolic function. We evaluated the ability of acoustic cardiography to detect LV systolic dysfunction in patients with and without atrial fibrillation. Design. We studied 194 patients who underwent acoustic cardiography and cardiac catheterization including measurement of angiographic ejection fraction (EF) and maximum LV dP/dt. LV systolic dysfunction was defined as LV maximum dP/dt < 1600 mmHg/s. Acoustic cardiographic parameters included electromechanical activation time (EMAT) and the systolic dysfunction index (SDI). Results. Acoustic cardiography detected systolic dysfunction with high specificity and moderate sensitivity with similar performance to EF (sensitivity/specificity without afib: EMAT 30/96, SDI 40/90, EF at 35% 30/96; sensitivity/specificity with afib: EMAT 64/82, SDI 59/100, EF at 35% 45/82). Conclusions. Acoustic cardiography can be used for diagnosis of LV systolic dysfunction in atrial fibrillation.
- Subjects
ATRIAL fibrillation; LEFT heart ventricle; CARDIAC contraction; CARDIOGRAPHY; ELECTROMECHANICAL devices; ANGIOGRAPHY
- Publication
Cardiology Research & Practice, 2011, p1
- ISSN
2090-8016
- Publication type
Article
- DOI
10.4061/2011/173102