There exist varied opinions regarding the role of Calcium in Coronary Artery Disease. Some studies have suggested that increase in serum Calcium is responsible for Coronary Artery Disease events while others have observed hypocalcemia to be a risk factor for Coronary Artery Disease mortality and Calcium supplementation in these patients could re-establish the normal cardiac function. Aim of our study was to evaluate the role of Calcium in Coronary Artery Disease patients with and without Myocardial Infarction and its relationship with serum Lactate Dehydrogenase. 200 subjects included in the study were categorized into 50 normal healthy individuals as Group I, 50 Coronary Artery Disease patients without Myocardial Infarction as Group II, 50 Coronary Artery Disease patients with Myocardial Infarction and having no ST segment elevation as Group III (a) and 50 Coronary Artery Disease patients with Myocardial Infarction and having ST segment elevation as Group III (b). These subjects were investigated for serum Calcium and Lactate Dehydrogenase. Lactate Dehydrogenase was significantly raised in the Coronary Artery Disease patients when compared to normal healthy individuals. A negative correlation was observed between serum Calcium and Lactate Dehydrogenase.
