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Persistent Ductus Arteriosus

August 30, 2012  by: Dr. Simran Kaur  Points: 8   Category: Health  Earning $0.10   Views: 344

Persistence of the patency of the vessel named ductus arteriosus which leads from the bifurcation of the pulmonary artery to the aorta just distal to the origin of left subclavian artery.

         

Persistence of the patency of the vessel named ductus arteriosus which leads from the bifurcation of the pulmonary artery to the aorta just distal to the origin of left subclavian artery. Usually this vessel is found in foetus but it closes by birth. Whereas in case of persistent ductus arteriosus disease, this vessel does not close even after birth.

Causes-

1. It is mostly found in premature newborns. They are at having more risks of having persistent ductus arteriosus.

2. Maternal rubella.

3. It is more common in females.


Symptoms-

1. Difficulty in breathing with collapsing pulse.

2. Growth retardation and reduced development in children suffering from persistent ductus arteriosus.

3. Hyperdynamic apex beat.

4. Loud first heart sound.

5. Pulmonary hypertension.

6. Continuous machinery murmur and multiple ejection clicks are heard within this murmur.

7. In right to left shunt that is in reversed shunt, there develops central cyanosis and clubbing but only in lower limbs. Continuous murmur becomes quieter and later disappears.

8. Whereas in large left to right shunt, there is presence of left ventricular third heart sound and mid-diastolic flow murmur at apex.


Investigations-

1. Chest x-ray.

2. ECG.

3. Echocardiography.

4. Cardiac catheterisation.




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