The survival time of patients with an unclosed arterial duct is mainly related to the diameter of the defect, the presence of complications and other factors, and cannot be generalized. Some of the younger patients with ductus arteriosus will heal spontaneously within 1 year of age, at which point the survival time is the same as normal. If the ductus arteriosus does not heal spontaneously and if surgery is performed before the development of serious complications such as pulmonary hypertension, the patient’s subsequent survival time will not be significantly affected as long as the surgery goes well and the prognosis is good. If a patient with an unclosed ductus arteriosus develops complications such as pulmonary hypertension, survival time is usually variable. Larger ductus arteriosus in particular is very aggressive and often results in death in infancy if left untreated. If an arteriovenous catheter is found to be unclosed, the patient should be closely observed and promptly seek medical attention from the cardiovascular medicine department of a local tertiary care hospital. Usually pay more attention to rest, avoid too much strain, and do not get too excited emotionally.