R. Kiruthika, S. Mohamed Fahrudeen, K. Raghunandhan, A Prospective Observational Study on the Prevalence of Dilatation Cardiomyopathy in Chronic Alcohol use in A Tertiary Care Hospital, Research Journal of Medical Sciences, Volume 19,Issue 4, 2025, Pages 154-157, ISSN 1815-9346, makrjms.2025.4.154.157, (https://makhillpublications.co/view-article.php?doi=makrjms.2025.4.154.157) Abstract: Chronic alcoholism is prevalent in Western societies. However, the concerning aspect is that it is also escalating to epidemic levels in developing nations, including our own. The primary issue with chronic alcoholism is that numerous consequences on bodily systems are typically irreversible. Considering the comprehensive effects of alcohol on the heart, numerous studies unequivocally demonstrate that any potential benefits are minor, temporary, and uncertain, while the detrimental effects are undeniably significant. Study data were obtained from the Department of General Medicine at Sri Muthukumaran Medical College and Research Institute, Chennai, Tamil Nadu, from April 2024 to March 2025. The inclusion criteria consist of patients with normal weight, aged 21 to 50 years, who are attending the medical outpatient department. Exclusion criteria include patients having a history of ischemic heart disease, ECG alterations indicative of ischemic heart disease, and patients with specific medical conditions. Systemic hypertension Diabetes mellitus Bronchial Asthma Renal disease, significant nutritional problems, hepatic disease, hypercalcemic conditions Hypercholesterolemia, thyroid disorders, and other endocrine abnormalities. In this investigation of seventy instances of chronic alcoholism, twelve instances of dilated cardiomyopathy were observed. While there are various causes of dilated cardiomyopathy, specific factors are excluded from consideration (notably, peripartum dilated cardiomyopathy is irrelevant to this study as it only involves males). Patients with ischemic heart disease are excluded from this study. The findings of this study approximately align with the Seychelles research conducted by Victoria Hospital. The prevalence in this study was 20%. The prevalence rate is significantly elevated compared to the incidence of alcoholic dilated cardiomyopathy in the general population, which is twenty per one hundred thousand. Keywords: Alcoholic dilated cardiomyopathy