Fetal biophysical predictors of pulmonary hypertension severity, management, and treatment in infants born with congenital diaphragmatic hernia

C. Chase Binion, Chris B. Agala, Ashley H. Ebanks, Amy Marzinsky, Sean E. McLean, Congenital Diaphragmatic Study Group
University of North Carolina Chapel Hill School of Medicine. University of Virginia School of Medicine. McGovern Medical School at the University of Texas Health Science Center and Children’s Memorial Hermann Hospital.
United States

American Journal of Surgery
Am J Surg 2024; 236:
DOI: 10.1016/j.amjsurg.2024.115821

Abstract
Background: Pulmonary hypertension (PHTN) causes significant morbidity and mortality in patients with congenital diaphragmatic hernia (CDH). Currently, there is no routinely obtained prenatal prognostic marker to reliably predict postnatal CDH-associated PHTN severity.
Methods: The CDH Study Group (CDHSG) registry was queried for infants born from 2015 to 2021 with a graded (1-4) PHTN diagnosis. Fetal observed-to-expected lung volume to head circumference ratio (o/e LHR), percent predicted lung volume (PPLV), and total lung volume (TLV) were classified by severity.
Results: Of 4056 patients, 1047 and 785 infants had prenatal ultrasound or magnetic resonance imaging, respectively. Both moderate and severe o/e LHR were associated with increased odds of postnatal development of moderate (OR 2.913) and severe PHTN (OR 4.924).
Conclusions: In infants with CDH, prenatal predictor severity was associated with higher severity of PHTN and increased ECLS usage. Overall, patients with worse prenatal prognostic indicators were less likely to receive pulmonary vasodilator treatment.

Category
Class III. Pulmonary Hypertension Associated with Lung Hypoplasia
Diagnostic Testing for Pulmonary Vascular Disease. Non-invasive Testing
Diagnostic Testing for Pulmonary Vascular Disease. Risk Stratification

Age Focus: Pediatric Pulmonary Vascular Disease

Fresh or Filed Publication: Fresh (PHresh). Less than 1-2 years since publication

Article Access
Free PDF File or Full Text Article Available Through PubMed or DOI: No

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