상황
Algorithm to guide diagnostic and therapeutic decisions in neonates with hypoxemia suspected to have duct-dependent congenital heart disease.
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01Interpretation of PaO2 after hyperoxia test
>150 mmHg likely non-cardiac, <100 mmHg likely cyanotic CHD.
02
Echocardiographic identification of duct-dependent lesions such as HLHS, TGA, or PA/IVS.
03
Immediate start of prostaglandin E1 infusion if duct-dependent lesion confirmed.
Emergency departments, NICUs, and general pediatric wards evaluating cyanotic newborns, especially in settings where echocardiography is available.