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Outcome and cost analysis of implementing selective Coombs testing in the newborn nursery

Journal of Perinatology volume 32, pages 966–969 (2012)Cite this article

Subjects

Abstract

Objective:

(1) To determine whether infants born to O+ mothers who had selective cord-blood testing would have higher rates of clinically significant hyperbilirubinemia compared with those newborns who had routine cord-blood testing. (2) To determine the amount of cost savings by implementing a policy of selective cord-blood testing in newborns born to O+ mothers.

Study Design:

We conducted a retrospective pre/post intervention chart review on all infants in the normal newborn nursery at Loyola, born to blood type O+ women between 1 April 2008 and 1 April 2009. The pre-intervention group (routine testing) included infants born within 6 months before implementation of a new policy. The post-intervention group (selective testing) included infants born within 6 months following the implementation of a new policy. Data were collected for each of these groups regarding clinically significant hyperbilirubinemia.

Result:

All 250 of the infants in the routine testing group had a cord-blood type and Coombs done, whereas 42 of 164 (25%) infants in the selective group had testing done. By the end of the 6 months following the policy change, only 8% of infants were undergoing cord testing. When comparing routine vs selective testing, there was no statistically significant difference in the 24-h serum bilirubin, rate of phototherapy during the birth hospitalization, rate of readmission for hyperbilirubinemia or peak serum bilirubin level at readmission. The 92% reduction of cord-blood typing and Coombs testing would lead to a cost saving of $4100 per year to our hospital and $18 900 per year to our patients, and 95 h per year of technician time to perform these tests. When extrapolated to Illinois births in 2008, this would lead to an annual cost saving of almost $800 000 to Illinois hospitals and about $3.6 million to patients.

Conclusion:

Selective newborn cord testing of infants born to O+ mothers can decrease the use of resources and costs without increasing the risk of clinically significant hyperbilirubinemia.

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Acknowledgements

We thank Kelly Dorsey, MD, Karen Cavanaugh, MD, and Julie Holt for their help in data collection. We also acknowledge Regina Harders, PhD, for her statistical expertise.

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  1. Department of Pediatrics, Loyola University Medical Center, Maywood, IL, USA

    R Shahid & S Graba

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  1. R Shahid
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  2. S Graba
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Correspondence to R Shahid.

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Shahid, R., Graba, S. Outcome and cost analysis of implementing selective Coombs testing in the newborn nursery. J Perinatol 32, 966–969 (2012). https://doi.org/10.1038/jp.2012.26

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