AbstractBackground: Congenital heart disease encompasses a wide range of anomalies, that result from abnormal fetal development of heart and great vessels. Ductus arteriosus is a normal fetal vascular structure that allows blood from right ventricle to bypass the high resistance pulmonary vascular bed and pass directly to systemic circulation. Following birth the ductus closes, and in some patients if it does not close, left to right shunting occurs, causing volume overload of left heart, followed by its further sequel. Material and Methods: The study was conducted on all the patients, operated for patent ductus arteriosus in the Department of Cardio Vascular and Thoracic surgery. Results: A total of 79 patients mostly in 1st decade of life, irrespective of age, sex, presentation and surgical outcome were included in the study. 24 patients (30.37%) had history of preterm delivery. Systodiastolic murmur was audible in majority, and echocardiographic evidence of patent ductus arteriosus was present in all. Multiple ligation of the patent ductus was the surgical procedure of choice, long term results in survivors were excellent. Conclusion: Patent ductus arteriosus is a common congenital anomaly, presentation is suggestive, clinical examination is diagnostic, echocardiography is confirmative, multiple ligation is the operation of choice and long term results in survivors areexcellent.