A Prospective Study of Risk of Arrythmias in Patients with Myocardial Infarction in a Tertiary Care Center.

Unlabelled: Acute Coronary Syndrome (ACS) is an emerging epidemic in India. Conduction blocks occur in about 15-20% of patients with acute MI, studies have shown that arrhythmias are important predictors of poor outcome in patients with ACS and are associated with higher in hospital mortality.In this study an attempt is made to know the association of arrhythmias in patients of acute MI.

Heart rate variability in middle-aged men with new-onset hypertension.

Background: It has been well established that hypertension is associated with autonomic dysregulation. Studies investigating HRV have established that hypertension is characterized by sympathetic overactivity and or attenuation of parasympathetic modulation of the heart.

Methods: We examined short-term heart rate variability (HRV) as well as conventional indices of cardiovascular autonomic function including heart rate variation during deep breathing (HRVdb), 30: 15 ratio, pressor response to quiet standing and isometric handgrip in 35 male subjects (39 +/- 7 year, mean +/- SD) with new-onset hypertension (resting BP 155 +/- 17/101 +/- 8 mm Hg) and 17 age-matched normotensive men (resting BP: 111 +/- 7/71 +/- 5 mmHg).