Key result
Conversion to sinus rhythm in horses with atrial fibrillation significantly increased mean left ventricular fractional shortening from 31% to 35.34% (P = .004).
Why the study?
Does conversion to sinus rhythm improve echocardiographic parameters in horses with atrial fibrillation?
Observational (n=41)
Does conversion to sinus rhythm improve echocardiographic parameters in horses with atrial fibrillation?
Absolute Event Rate: 35.34% vs 31%
p-value: p=.004
Conversion to sinus rhythm in horses with atrial fibrillation improves left ventricular fractional shortening, suggesting that the arrhythmia compromises ventricular function.
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AF associated with reduced LV fractional shortening in horses; leaves open effects of cardioversion on ventricular function.
Marr et al. (1995) conducted an observational in Atrial fibrillation (n=41). Conversion to sinus rhythm vs. Pretreatment (atrial fibrillation) was evaluated on Mean left ventricular fractional shortening (p=.004). Conversion to sinus rhythm in horses with atrial fibrillation significantly increased mean left ventricular fractional shortening from 31% to 35.34% (P = .004).
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