Measurement of right ventricular volume in healthy term and preterm neonates.
Arch Dis Child Fetal Neonatal Ed
; 87(2): F89-93; discussion F93-4, 2002 Sep.
Article
em En
| MEDLINE
| ID: mdl-12193512
ABSTRACT
BACKGROUND:
Pulmonary hypertension is associated with worse perinatal outcomes in infants with respiratory disorders. In such infants right ventricular dysfunction may result in poor pulmonary blood flow.OBJECTIVE:
To evaluate the practicability and repeatability of echocardiographic measurements of right ventricular volume in healthy term and preterm neonates, and to follow changes in right ventricular volume over the first 2 days of life.METHODS:
Serial echocardiographic examinations were performed on day 0, 1, and 2 on healthy term and preterm neonates. Two methods of estimating right ventricular volume were assessed the ellipsoid approximation and Simpson's stacked discs methods. Systolic and diastolic volumes on days 1 and 2 were compared with baseline values on day 0. Term and preterm volumes were compared at the same time points.RESULTS:
Thirty five infants were recruited, 18 term and 17 preterm. Right ventricular volumes were significantly lower on day 1 and day 2 than baseline in both term and preterm infants. Median (interquartile range) end systolic and diastolic volumes for term infants on days 0, 1, and 2 were 1.04 (0.88-1.44), 0.82 (0.70-1.03), 0.92 (0.72-0.97) ml/kg and 2.21 (2.10-2.75), 2.05 (1.81-2.38), 1.91 (1.81-2.13) ml/kg respectively. In preterm infants the values were 1.09 (0.91-1.16), 0.72 (0.54-0.91), 0.61 (0.54-0.76) ml/kg and 2.09 (1.71-2.25), 1.47 (1.23-1.98), 1.43 (1.22-1.78) ml/kg respectively.CONCLUSION:
Right ventricular volume decreases over the first 2 days of life in healthy term and preterm infants.
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Base de dados:
MEDLINE
Assunto principal:
Recém-Nascido Prematuro
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Coração
Idioma:
En
Ano de publicação:
2002
Tipo de documento:
Article