A patent ductus arteriosus (PDA) is a persistent connection between the aorta and the pulmonary artery resulting in left to right shunting. This connection is supposed to close shortly after birth ...

Background: Echo is unable to quantify volume of patent ductus arteriosus(PDA) shunt and has limited repeatability for assessing systemic perfusion. Phase Contrast MR(PCMR) can reliably assess ...

ratio >1.3 or the narrowest diameter of the PDA shunt on color Doppler echocardiography >1.5 mm). The first dose of ibuprofen is administered, and then two consecutive doses of 5 mg/kg are given ...

Both of these are confounded when there is an atrial shunt, hence limiting the use of relative ventricular output as a measure of PDA significance. This shows the measurement of the color Doppler ...

[13] By the time the PDA became clinically apparent (mean 72 ... when the systemic circulation is particularly vulnerable to the effects of shunting through the DA. This data on SVC flow also ...