Is a 4mm patent ductus arteriosus severe?

May 16, 2023 Source: Cainiu Health

Dr. Sun Qifeng

Introduction

A 4 mm patent ductus arteriosus (PDA) is generally considered more severe. This condition is one of the more common types of congenital heart disease in children, and normally closes spontaneously within the first year of life. A PDA measuring 4 mm in length represents a relatively large defect. Because of this 4 mm unclosed artery, blood may flow from the aorta into the pulmonary artery, leading to increased blood volume in the pulmonary circulation.

Patent ductus arteriosus (PDA) with a 4mm opening is generally considered quite significant. Details are as follows:
This condition is one of the more common types of congenital heart disease in children, and normally closes spontaneously within the first year of life. A 4mm patent ductus arteriosus represents a relatively large opening. Because of this 4mm persistent connection, blood may shunt from the aorta into the pulmonary artery, leading to increased blood flow in the pulmonary circulation. This excess flow can result in pulmonary hypertension, cardiac overload, or impaired normal heart function. If patients experience recurrent colds, fever, weight loss, or similar symptoms, they should promptly seek care at a reputable hospital and undergo surgical treatment—such as PDA ligation—under a doctor's guidance. This surgery is generally safe, and most patients recover fully within about a month.
After surgery, patients are advised to have regular follow-up check-ups at the hospital and engage in appropriate physical exercise to help restore their immune resistance. Regarding diet, it is recommended to consume more fresh fruits and vegetables, while avoiding spicy, stimulating, and greasy foods.

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