Preterm birth and carotid diameter and stiffness in childhood |
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Authors: | Bonamy Anna-Karin Edstedt Andolf Ellika Martin Helena Norman Mikael |
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Institution: | Department of Woman and Child Health, Karolinska Institutet, Stockholm, Sweden. anna-karin.edstedt.bonamy@ki.se |
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Abstract: | BACKGROUND AND AIM: Low birthweight, either as a result of poor foetal growth or preterm birth, is a risk factor for stroke in adult life. Carotid stiffening, an early marker of atheromatous disease, has been found in low-birthweight children born at term. We hypothesized that carotid artery growth and dynamic properties are permanently affected by preterm birth. METHODS: Carotid artery stiffness and dimensions in 56 school children, 39 born very preterm (mean gestational age GA] 29 weeks) and 17 controls born at term, were studied by ultrasonic measurements of the pulsatile movements of the vessel wall. RESULTS: The carotid artery diameter was 6.4 mm both in children born preterm and at term (p=0.99). No difference in carotid stiffness was found. Within the preterm group, no differences could be seen between those born small for gestational age (SGA) or appropriate for gestational age (AGA). CONCLUSIONS: Carotid artery elasticity and structure are not altered after preterm birth. The mechanisms behind the increased stroke risk in adults born preterm remain unresolved. |
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Keywords: | Arterial distensibility Blood pressure Preterm Stroke |
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