Key result
Acoustic monitoring of electromechanical activation time detects LVEF <50% with up to 96% sensitivity.
Why the study?
The study evaluated the diagnostic value of electromechanical activation time in quantifying left ventricular systolic dysfunction among LBBP and RVAP patients using a mobile acoustic cardiography monitoring system.
Does electromechanical activation time (EMAT) measured by a mobile cardiac acoustic monitoring system accurately detect LVEF < 50% in pacemaker-dependent patients?
Population
105 pacemaker-dependent patients
Comparison
LBBP vs RVAP
Design
Prospective single-center observational study
Authors
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May support mobile EMAT screening for low LVEF in paced patients; hypothesis-generating and requires prospective validation.
Observational (n=105)
No
Does electromechanical activation time (EMAT) measured by a mobile cardiac acoustic monitoring system accurately detect LVEF < 50% in pacemaker-dependent patients?
p-value: p=<0.001
EMAT measured by a mobile acoustic monitoring system can accurately identify left ventricular systolic dysfunction in pacemaker patients, with optimal cutoffs varying by pacing type.
Huang et al. (2022) conducted an observational in Left ventricular systolic dysfunction in pacemaker-dependent patients (n=105). Mobile cardiac acoustic monitoring (EMAT) was evaluated on Association between electromechanical activation time (EMAT) and reduced LVEF (< 50%) (p=<0.001). Electromechanical activation time via mobile acoustic monitoring detected LVEF <50% with high accuracy, using cutoffs of ≥151 ms in RVAP (96% sensitivity) and ≥110 ms in LBBP (75% sensitivity).
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