NIRS in Congenital Heart Defects - Correlation With Echocardiography

2019-10-02 07:21:34 | BioPortfolio


Neonatal patients with congenital heart defects (CHD) have changing physiology in the context of transitional period. Patients with CHD are at risk of low perfusion status or abnormal pulmonary blood flow. Near infrared spectroscopy has been used in neonatal intensive care units (NICU) to measure end-organ perfusion. The investigator plan on monitoring newborns with CHD admitted to the NICU with NIRS and echocardiography during the first week of life and correlate measures of perfusion from Dopplers to cerebral and renal NIRS.


Near infrared spectroscopy (NIRS) is a noninvasive technology that uses infrared light to measure Oxygen levels in tissue or organs. However, the use of this monitoring tool has not been the standard of care in the immediate post-natal life. The investigator wish to study this way of monitoring Oxygen, which consists of using a sticker on the skin of the forehead and the skin of the abdomen to continuously monitor the Oxygen content of the brain and the kidneys and compare NIRS values in the CHD population to echocardiographic measures of blood flow and heart function to see if/how this simple, non-invasive tool could help us to closely monitor Oxygen in babies with CHD.

The NIRS probe (sticker) will be put on the side of the abdomen (the flank to monitor the kidney saturation of oxygen) and on the forehead (to monitor the brain saturation of oxygen) for 7 days or until the baby is discharged home, has a procedure in cath-lab or has surgery. An echocardiography will take place daily (for up to 7 days, or up to discharge, or up to cardiac intervention) during the day and should last about 15- 20 minutes. Newborns will be recruited during the fetal consultation with the cardiologist or neonatologist; or will be recruited during their neonatal admission. Only newborns admitted to the NICU will be eligible to the study.

The investigator would like to better understand the way babies with cardiac conditions transition once they are born and into their first week of life. During that important time, there are a lot of changes that can impact the cardiac adaptation: vessels in the lungs that relax, vessels in the body that contract. Echocardiography and NIRS may help us better appreciate these changes by evaluating the delivery of oxygen to organs. Echocardiography may reveal some information about this adaptation by looking at the cardiac performance by ultrasound and blood flow patterns.

Approximately 100 participants from this hospital will take part in this study.

Study Design


Congenital Heart Defect


NIRS evaluation


Mcgill University Health Centre
H4A 3J1


Not yet recruiting


McGill University Health Centre/Research Institute of the McGill University Health Centre

Results (where available)

View Results


Published on BioPortfolio: 2019-10-02T07:21:34-0400

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Medical and Biotech [MESH] Definitions

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A congenital heart defect characterized by the narrowing or complete absence of the opening between the RIGHT VENTRICLE and the PULMONARY ARTERY. Lacking a normal PULMONARY VALVE, unoxygenated blood in the right ventricle can not be effectively pumped into the lung for oxygenation. Clinical features include rapid breathing, CYANOSIS, right ventricle atrophy, and abnormal heart sounds (HEART MURMURS).

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A congenital heart defect characterized by downward or apical displacement of the TRICUSPID VALVE, usually with the septal and posterior leaflets being attached to the wall of the RIGHT VENTRICLE. It is characterized by a huge RIGHT ATRIUM and a small and less effective right ventricle.

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