Key result
Atrial fibrillation in male chronic heart failure patients was associated with a significantly lower peak VO2 compared to sinus rhythm (13.8 vs 17.1 ml/kg/min; p<0.01).
Why the study?
Does atrial fibrillation reduce peak oxygen uptake in male chronic heart failure patients?
Observational (n=111)
Does atrial fibrillation reduce peak oxygen uptake in male chronic heart failure patients?
Absolute Event Rate: 13.8% vs 17.1%
p-value: p=<0.01
Atrial fibrillation is associated with a 20% lower peak VO2 in male chronic heart failure patients, highlighting the importance of preserved atrial contraction or regular rhythm for exercise performance.
Authors
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AF may limit exercise capacity in male HF; hypothesis-generating and requires prospective confirmation before practice change.
Pardaens et al. (1997) conducted an observational in chronic heart failure (n=111). Atrial fibrillation vs. Sinus rhythm was evaluated on peak oxygen uptake (peak VO2) (p=<0.01). Atrial fibrillation in male chronic heart failure patients was associated with a significantly lower peak VO2 compared to sinus rhythm (13.8 vs 17.1 ml/kg/min; p<0.01).
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