The diagnosis of patent ductus arteriosus with reversal of flow ... It is impossible to state at what age the right-to-left shunt in our patient first began. However, at the age of twenty-two ...

Cite this: Current Controversies in the Diagnosis and Treatment of Patent Ductus Arteriosus ... [1] Early shunts are "balanced," or right to left. Early shunting is predominantly left-to-right.

A patent ductus arteriosus (PDA) is a persistent connection ... Thus in systole there is an average of a 95 mmHg gradient causing a left to right shunt and during diastole there is a 75 mmHg ...

There was a large left-to-right shunt through a ductus ... Cardiac catheterization indicated a small patent ductus arteriosus, minimal pulmonary-artery hypertension, normal pulmonary vascular ...

This article presents common misconceptions about the physiologic significance of early ductal shunting and reviews the evidence regarding the preferential use of echocardiography rather than ...