Blood pressure connected to eye health in young children
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Young children with narrow retinal artery diameters were more likely to develop higher blood pressure, and children with higher blood pressure levels were more likely to develop retinal microvascular impairment during early childhood, according to a new study published today in Hypertension, an American Heart Association journal. This is the first study to show this connection in children.

In previous studies, analysis of blood vessels in the retina has shown promise as a predictor of CVD risk among adults. In the study titled, ”Retinal Vessel Diameters and Blood Pressure Progression in Children,” researchers sought to predict the development of high blood pressure in children over four years based on retinal blood vessel measurements.

Researchers screened 262 children ages six to eight from 26 schools in Basel, Switzerland for baseline blood pressure and retinal arterial measurements. Both measures were taken again in 2018. Blood pressure measurements at both baseline and follow-up were performed in a sitting position after a minimum of five minutes of rest and were categorized based on the American Academy of Pediatrics’ blood pressure guidelines.

Results from the analysis indicate:

-- Children with narrower retinal vessel diameters at baseline developed higher systolic blood pressure at follow-up
-- Retinal vessel diameters could explain 29 -31% of the changes in systolic blood pressure progression between 2014 and 2018
-- Children with higher blood pressure levels at baseline developed significantly narrower arteriolar diameters at follow-up, depending on weight and cardiorespiratory fitness
-- Initial blood pressure measures explained 66-69% of the change in retinal arteriolar diameter from baseline to follow-up.

“Early childhood assessments of retinal microvascular health and blood pressure monitoring can improve cardiovascular risk classification. Timely primary prevention strategies for children at risk of developing hypertension could potentially counteract its growing burden among both children and adults,” said researchers.

Source: https://newsroom.heart.org/news/blood-pressure-connected-to-eye-health-in-young-children
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