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Newborn pulse oximetry screening for critical congenital heart defects
1Barcelona Institute for Global Health, University of Barcelona, Barcelona, Spain. sophjullien@gmail.com.
Insights
Pulse oximetry screening accurately detects critical congenital heart defects (CCHDs) in newborns. This cost-effective method offers significant benefits, with minimal harms from false positives, preventing serious consequences of missed diagnoses.
Area of Science:
- Neonatal screening
- Cardiology
- Public health
Background:
- Critical congenital heart defects (CCHDs) pose a significant risk to newborns.
- Early detection of CCHDs is crucial for timely intervention and improved outcomes.
- Pulse oximetry is a non-invasive method for assessing oxygen saturation.
Purpose of the Study:
- To evaluate the effectiveness of pulse oximetry for detecting CCHDs in newborns.
- To assess the impact of screening timing and testing site on accuracy.
- To identify potential harms and limitations of pulse oximetry screening.
Main Methods:
- Conducted a comprehensive literature search up to August 13, 2019.
- Included key terms and manual searches in selected sources.
- Summarized existing recommendations, evidence strength, and systematic review findings.
Main Results:
- Pulse oximetry screening demonstrates consistent accuracy for CCHD detection, complementing antenatal ultrasound and clinical examination.
- Early diagnosis via pulse oximetry is beneficial and cost-effective.
- Potential harms from false positives are minor; missing CCHDs has serious consequences. Testing site had no significant impact on accuracy.
Conclusions:
- Pulse oximetry screening is a valuable tool for early CCHD detection in newborns.
- The benefits of early diagnosis outweigh the minimal risks associated with screening.
- Consistent accuracy and cost-effectiveness support the widespread implementation of pulse oximetry screening.
Abstract:
We looked at existing recommendations and supporting evidence addressing the effectiveness of pulse oximetry effective for detecting critical congenital heart defects (CCHDs) in newborns. We also looked at the impact of timing of oximetry and the site of testing in the accuracy of screening, and at the potential harms and limitations of pulse oximetry screening,We conducted a literature search up to the 13th of August 2019 by using key terms and manual search in selected sources. We summarized the recommendations and the strength of the recommendation when and as reported by the authors. We summarized the main findings of systematic reviews with the certainty of the evidence as reported.Current evidence supports consistent accuracy for detection of CCHDs in newborns by pulse oximetry screening in addition to antenatal ultrasonography and clinical examination. Overall, early diagnosis of CCHD with pulse oximetry is judged to be beneficial and cost-effective, and potential harms associated with false-positive tests are not serious, while missing CCHDs and other serious diseases detected by hypoxaemia in absence of pulse oximetry screening can lead to serious consequences. The site of testing (post-ductal versus pre- and post-ductal) had no significant effect on sensitivity nor specificity for detection of CCHDs.
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