Key result
Converting atrial tachycardia to sinus rhythm is linked to ~16% higher peak VO2 post-CHD surgery.
Why the study?
Does conversion of atrial tachycardia to sinus rhythm improve exercise performance in patients after congenital heart disease surgery?
Population
10 patients aged 9-25 years 8-20 years after congenital heart disease surgery
Comparison
Exercise during sinus rhythm vs atrial tachycardia
Follow-up
1-232 days (mean, 34 days)
Authors
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May support rhythm restoration to boost exercise capacity in congenital heart disease; leaves open need for larger randomized trials.
Observational (n=10)
Does conversion of atrial tachycardia to sinus rhythm improve exercise performance in patients after congenital heart disease surgery?
Absolute Event Rate: 28.7% vs 24.7%
p-value: p=<0.01
Conversion of atrial tachycardia to sinus rhythm improves exercise performance in patients after congenital heart disease surgery by improving heart rate adaptation to exercise.
Wessel et al. (1989) conducted an observational in Atrial tachycardia after congenital heart disease surgery (n=10). Conversion to sinus rhythm vs. Atrial tachycardia (before conversion) was evaluated on Peak VO2 (p=<0.01). Conversion of atrial tachycardia to sinus rhythm improved peak VO2 (mean 28.7 vs 24.7; p<0.01) and exercise time in patients with prior congenital heart disease surgery.
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