PDA Device Closure:

PDA Device Closure or Patent ductus arteriosus closure is a procedure done to close an opening in a normal blood vessel.

January 10, 2023

PDA Device Closure or Patent ductus arteriosus closure is a procedure done to close an opening in a normal blood vessel.
Some facts about PDA Device Closure:
  • Oxygenated blood is supplied to the whole body and Pulmonary artery carries deoxygenated blood to the lungs in a normal human heart.
  • Both blood vessels are separated from each other.
  • There is a small duct that connects the aorta and the pulmonary artery when a baby is in the womb which is called as Ductus Arteriosus.
  • Pure blood is supplied from the placental connection with its mother.
  • This ductus arteriosus gets closed within one to two days and in some conditions, up to one year when the baby gets birth.
  • There lies a defect when the opening doesn't close and Aorta and pulmonary artery still has an open connection between them.
  • The oxygen-rich blood from aorta gets leaked into the pulmonary artery because of this resulting in an overpressure to the lungs
  • It may cause permanent damage to the lung blood vessels over time.
  • A bounding pulse, fast breathing, not feeding well, shortness of breath and sweating while feeding are symptoms in babies with a large PDA.
  • PDA is more often found in premature babies and generally accompanied by Down's syndrome and some genetic abnormalities
Preparation for PDA Device Closure:
  • Your cardiologist should be informed if you have ever had a problem with sedation or if you have allergies.
  • Health problems, like diabetes or kidney problems should also be informed to your cardiologist.
  • Tell your cardiologist if you are pregnant or think you may be pregnant.
  • Eating or drinking anything after midnight the night before the procedure of PDA Device closure should be avoided.
  • An echocardiogram test will be done to decide the suitability of PDA for device closure.
  • A special echocardiogram known as transesophageal echocardiogram (TEE) may be used in addition to a echocardiogram to assess the finer details of the ASD.
  • The exact location of the defect and the distance from other important parts of the heart like aorta and heart valves are measured as a reasonable distance from all these vital structures is required to place the device in order to avoid immediate and long term complications.
Procedure for PDA Device Closure:
  • Chest X-ray and EKG is done to diagnose the patent ductus arteriosus.
  • A contrast dye is also administered in a catheterization if required.
  • This ductus arteriosus is either sewed or closed by a PDA Device Closure method.
  • Typically surgery is used to close a PDA in premature and small babies.
  • The minimally invasive route will be taken by your cardiothoracic surgeon to make an incision in the left side of your chest, between the ribs.
  • The PDA will be closed by tying it with suture which is a thread like material or by placing a small metal clip permanently around it to squeeze it closed.
  • A surgical patch is sometimes used.