Boston Children's Hospital
Unrecognized coarctation of the aorta (CoA) is a life-threatening component of congenital heart disease (CHD) in which narrowing of the aorta causes obstructed blood flow to the lower half of the body; it can occur in isolation or in combination with other defects. CoA is the type of CHD most likely to be missed by current newborn screening. An evolving coarctation (during closure of the ductus arteriosus) can be challenging to diagnose until often devastating end-organ injury manifests, even in the ICU setting. This study will evaluate currently used tools, such as four extremity blood pressures and pulse oximetry, and the investigators will test new tools - resonance Raman spectroscopy (RRS) and photoplethysmography analysis- to assess the adequacy of oxygen delivery in newborns who are at risk for aortic arch obstruction. The investigators hypothesize that combining an assessment of commonly used non-invasive monitoring tools, new components of these traditional tools, and RRS, will have improved sensitivity in detecting critical impairments to tissue oxygen delivery in newborns with suspected critical aortic arch obstruction.
Coarctation of the aorta (CoA) is a potentially life-threatening form of congenital heart disease (CHD) in which an anatomic narrowing of the aortic arch may cause critical aortic arch obstruction (AAO) following closure of the ductus arteriosus (DA). CoA accounts for 6-8% of all CHD and occurs in about 1 in every 1800 babies born in the United States each year. Despite this prevalence, CoA frequently eludes detection on both prenatal imaging and CHD screening. If undiagnosed, infants may present with catastrophic shock, often leading to mortality or severe morbidities. In many cases, the anat…
Inclusion Criteria: * Infants with echocardiography-based possible or definite aortic arch obstruction and \<1 month postnatal age admitted to the CICU * Clinical team assent to approach family, (3) parent/guardian informed consent. Inclusion criteria includes infants with concurrent other congenital heart disease, or simple Coarctation of the aorta or arch hypoplasia Exclusion Criteria: * Known carrier status for resistant organisms. Resistant organisms are defined as MRSA and VRE.
Infants will have monitoring three times a day with resonance Raman spectroscopy device during arch watch period. They will have continuous monitoring with pulse oximetry and near infrared spectroscopy. They will have intermittent blood pressure monitoring.
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