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Patent Ductus Arteriosus

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Symptoms of Patent Ductus Arteriosus (PDA)

 Most Patent Ductus close spontaneously however if they remain open large amount of blood flows to the lungs and causes pulmonary hypertension.


Bullet Most of the premature infants born with Patent ductus arteriosus have spontaneous closure. It is rare in full term babies.

Bullet Respiratory tract infections are common.

Bullet Large amount of blood flow to the pulmonary artery can damage the artery wall.

Bullet Pulmonary hypertension can be a complication that can result in the reversal of the blood flow. Shunting happens from the pulmonary artery to the aorta decreasing the oxygen content in the blood supplying the body. This is called Eisenmenger’s syndrome.

Bullet Large PDAs or untreated PDAs can cause Congestive Heart Failure. Infants present with poor weight gain, failure to thrive or breathing difficulties. Some children may have cyanosis (bluish discoloration of skin, nails, tongue, etc).

Bullet Subacute Bacterial Endocarditis [SBE] develops in patients with small patent ductus arteriosus. It can be prevented and treated with antibiotics. In early days, when antibiotics were not so widely used, SBE used to cause death in about half the patients with PDA.

Bullet Congestive Heart Failure [CHF] is another major complication of a large or untreated PDA. A moderate sized shunt causing persistent increase of volume overload can even cause death in adults. In children, about 30% of death occurs due to CHF.

Bullet Symptoms of heart failure occur much sooner and severe in premature babies than in full term babies.

Bullet Some of the symptoms of heart failure are

  • Tachypnea - Rapid breathing.
  • Dyspnea – Breathing Difficulties
  • Tachycardia – Rapid heart beat (more than 100 beats per minute).
  • Poor feeding
  • Failure to thrive

Bullet Diaphoresis – Profuse Sweating

Bullet Clubbing – Fingers and toes become round and thick. When the PDA is repaired, clubbing disappears.

Bullet Pounding Heart Beats in the extremities can at times be felt or seen through the skin.


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    What are some therapy options for improving a hoarse, high pitched voice as a result of Left Vocal Cord Paralysis.
    speechpath Saturday, February 9, 2013
    My son is 6 years had an operation of PDA he is fine,eats well though still thin but strong and active.its now 3month
    victor6 Thursday, January 31, 2013
    Without treatments, Disease Patent Ductus Arteriosus[PDA] may progress from left-to-right(acyanotic heart) shunt to right-to-left shunt(cyanotic heart) called Eisenmenger syndrome, which has a grave outcome.
    tjavailable Friday, January 28, 2011
    Pls clarify why did the PDA problem occurs for the child?
    What are all reasons for PDA Problem?

    My Baby had at three months baby, cardiologist surgery and clear that problem..But I have one doubt in future anyother problem occurs for child...pls reply me as soon as possible.....

    Kavivarshini Tuesday, November 10, 2009
    What the reasons for PDA Problem occurs to child?

    Kavivarshini Saturday, November 7, 2009
    My daughter had this PDA problem in 3months baby. then cardiologist surgery for my baby. She is well. now she is 1 1/2 years old...I know in future anyother problem occurs for my daughter.
    Kavivarshini Saturday, November 7, 2009
    I would like to know the same thing. My daughter has a pda and doesn't eat. Tube fed. How is the success rate with eating after her pda is fixed?
    ProudMother Thursday, July 16, 2009
    Regarding PDA - cardiac catheterization route - could you please let me know the risk factor and sucess rate.


    SureshViswanathan Friday, January 30, 2009
    My name is Tracey, I am 44 years old, and at age 6 I had a PDA closure with no complications. I have led a healthy and happy life. I am married and have three beautiful children.
    soccermom7 Sunday, March 20, 2011

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