Key result
Combining ivabradine with metoprolol significantly lowered mean heart rate during daily activity and improved exercise capacity and symptoms compared to metoprolol monotherapy.
Why the study?
Does combining ivabradine with metoprolol succinate improve heart rate control and symptoms in patients with refractory inappropriate sinus tachycardia?
Does combining ivabradine with metoprolol succinate improve heart rate control and symptoms in patients with refractory inappropriate sinus tachycardia?
The addition of ivabradine to metoprolol succinate significantly improves heart rate control, exercise capacity, and symptoms in patients with inappropriate sinus tachycardia refractory to beta-blocker monotherapy.
No takes yet. Share an insight, caveat, or question.
May support ivabradine addition for refractory IST; leaves open confirmation by randomized trials before practice change.
Ptaszyński et al. (2013) studied Inappropriate sinus tachycardia (n=20). Ivabradine in combination with metoprolol succinate vs. Metoprolol succinate monotherapy was evaluated on Mean heart rate during daily activity, exercise capacity, and IST-related symptoms. Combining ivabradine with metoprolol significantly lowered mean heart rate during daily activity and improved exercise capacity and symptoms compared to metoprolol monotherapy.
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