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Patent Ductus Arteriosus (Bypass)

What is Patent Ductus Arteriosus and how can it be corrected?

A patent ductus arteriosus (PDA) is an open vessel that courses between the aorta and the pulmonary artery present in all babies before birth, which helps to distribute oxygen from the mother to the baby's organs and allows blood flow to avoid the lungs. When the baby is born, the lungs expand, their blood vessels relax to accept more flow, and the ductus arteriosus usually closes on its own within the first hours or days of life.
When, the ductus arteriosus does not close on its own, the condition is referred to as a patent (open) ductus arteriosus and is commonly seen in premature babies and sometimes in infants.

How is PDA corrected through bypass?

  • An incision is made in the groin and the femoral vein is accessed and connected to the bypass machine which will manage blood circulation once the heart and lungs are stopped.
  • The left chest is opened. The aorta is clamped above and below the ductus.
  • The aorta is opened, and a synthetic patch is sewn over the orifice of the ductus.
  • The patient is then taken off the bypass machine and the heart is started again to circulate blood through the lungs and body.
  • The breastbone is rejoined with wires and all incisions are sewn closed.
  • At the termination of the procedure, chest tubes remain in the thoracic cavity to evacuate air and drain any residual fluid.

 

 
 
Panel Of Specialist

Cardiology
Dr. Zainal Hamid
MBBS, FRCP, MRCP (UK) 

Cardiothoracic
Dr. N. Arunachalam
MBBS, FRCS (Edin), AM (Mal)