Cite this: Current Controversies in the Diagnosis and Treatment of Patent Ductus Arteriosus in Preterm Infants - Medscape - Aug 01, 2003. The DA of a very preterm infant has minimal constriction ...

As a result, the DA is more likely to remain patent and the resulting shunt may have important hemodynamic consequences. [4] Doppler echocardiography has given us a window to evaluate the real ...

In recent decisions, the U.S. Court of Appeals for the Federal Circuit affirmed the inherent powers of district courts to investigate and address potential party misconduct in patent litigations ...

If the ductus does not close, the result is a patent (meaning “open”) ductus arteriosus. A PDA allows oxygen-rich blood (blood high in oxygen) from the aorta to mix with oxygen-poor blood in the ...