Atrioventricular (AV) nodal reentrant tachycardia (AVNRT) is an irregular heart rhythm that can cause excessively fast heart rates. Though not usually serious, early diagnosis can help prevent severe ...
Patients with postural orthostatic tachycardia syndrome treated with ivabradine have better heart-rate control when standing. HealthDay News — Ivabradine lowers heart rate (HR) and relieves symptoms ...