Cardiac Valve Annulus Diameters in Extremely Preterm Infants : A Cross-Sectional Echocardiographic Study
| Autor: | Jan L. M. Strengers, Maria H. Wesseling, Mirella M C Molenschot, Arthur Adams, Allard E. van Ark, Willem B. de Vries, Johannes M.P.J. Breur |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Aortic valve
Male medicine.medical_specialty Intraclass correlation Birth weight Gestational Age 030204 cardiovascular system & hematology Pediatrics Reference values 03 medical and health sciences 0302 clinical medicine Cardiac valves 030225 pediatrics Internal medicine Mitral valve medicine Birth Weight Humans Infant Very Low Birth Weight Pediatrics Perinatology and Child Health Netherlands Body surface area Extremely preterm infants Original Paper Tricuspid valve business.industry Infant Newborn Gestational age Perinatology Heart Valves and Child Health Low birth weight medicine.anatomical_structure Cross-Sectional Studies Echocardiography Infant Extremely Premature Pediatrics Perinatology and Child Health Cardiology Linear Models Female medicine.symptom business Developmental Biology |
| Zdroj: | Neonatology, 114(3), 198. S. Karger AG |
| ISSN: | 1661-7800 |
| Popis: | Background: With the increasing incidence of births of very preterm very-low-birth-weight infants, there is a demand for echocardiographic reference values of cardiac dimensions. Objectives: The aim of this study was to provide reference values of cardiac valve annulus diameters in a cohort of extremely preterm very-low-birth-weight neonates and to correlate these with patient characteristics. Methods: Valve diameters of 376 infants of < 32 weeks’ gestation and with a birth weight of ≤2,000 g were measured using 2-dimensional echocardiography. Correlations between valve diameters and patient characteristics (birth length/weight, body surface area, gestational age, and sex) were assessed. Birth weight was used to establish linear regression models. Inter- and intraobserver agreement was assessed through intraclass correlation coefficient (ICC) analysis. Results: Substantial variability was found (aortic valve mean [standard deviation; range]: 5.0 mm [0.6; 3.7–6.5]; pulmonic valve: 5.8 mm [0.8; 3.4–7.9]; mitral valve: 8.0 mm [1.0; 5.5–10.5]; tricuspid valve: 7.6 mm [1.2; 4.9–10.6]). There was a moderate correlation between birth weight and valve diameter (R2 aortic valve: 0.36; pulmonic valve: 0.20; mitral valve: 0.24; tricuspid valve: 0.24). Adequate intraobserver (ICC range 0.74–0.91) and interobserver agreement (ICC range 0.77–0.89) was found. Conclusions: Our study provides ready-to-use reference values for cardiac valve annulus diameters for extremely preterm infants. |
| Databáze: | OpenAIRE |
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