Schena et al screened for congenital heart disease in neonates using a pulse oximeter. The authors are from multiple institutions in Italy.

Patient selection: neonate


Evaluation: oxygen saturation in percent and perfusion index using a pulse oximeter


Positive screening tests - one or more of the following:

(1) postductal (foot) SpO2 <= 95%

(2) > 3% difference in SpO2 between pre (hand) and post (foot) ductal sites

(3) single site perfusion index < 0.90


A positive test is repeated in 30 minutes. If the test was still positive then the patient is referred for echocardiography.

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