Patent Ductus Arteriosus (PDA) | 合法醫療器材資訊網

SurgeryclosesthePDAwithstitchesorclips.Thisstopstheextrabloodfromgettingintothelungs.Prematurebabiesmusthavethissurgery.Whatarepossible ...

Patent ductus arteriosus (PDA) is a heart defect found in the days or weeks after birth. The ductus arteriosus is a normal part of fetal blood circulation before a baby is born. It’s an extra blood vessel that connects 2 arteries: the pulmonary artery and the aorta. The pulmonary artery carries blood from the heart to the lungs. The aorta carries blood from the heart to the body. Before birth, the ductus arteriosus lets blood go around (bypass) the lungs. This is because the baby gets oxygen from the mother.

All babies are born with this opening between the aorta and the pulmonary artery. But it often closes on its own shortly after birth, once the baby breathes on its own. If it stays open (patent), it is called patent ductus arteriosus. With PDA, extra blood flows to the lungs. If the PDA is large, too much blood goes to the lungs. The blood vessels and the l...