Pulse oximetry screening for critical congenital heart diseases at two different hospital settings in Thailand

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Abstract

OBJECTIVE:

To evaluate the predictive abilities of pulse oximetry screening (POS) for critical congenital heart disease (CRIT.CHD) at two different hospital settings in Thailand.

STUDY DESIGN:

The study was conducted in healthy newborns at Ramathibodi Hospital (RH), a university hospital and Maharat Nakhon Ratchasima Hospital (MH), a regional hospital. Positive POS was defined as oxygen saturation (SpO2) < 95% or difference between pre- and postductal SpO2 >3%.

RESULTS:

Of 11 407 live births, 10 603 (92.9%) newborns were enrolled with a follow-up rate at 1 month of 78.3%. Incidence of CRIT.CHD (per 1000 live births) at RH and MH were 5.7 and 2.7, respectively. POS could detect three newborns who would have had a missed diagnosis. Sensitivity of POS for CRIT.CHD at RH was 82.3% vs 100% at MH. Overall specificity was 99.9% and false-positive rate was 0.009%. Combination of POS and physical examination (PE) enhanced detection ability to 100% at both hospitals.

CONCLUSION:

POS combined with PE improved detection of CRIT.CHD. Routine POS is useful in personnel-limited settings.

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