Determination of cardiac reserve in preterm infants.
Turk J Pediatr
; 53(3): 308-13, 2011.
Article
em En
| MEDLINE
| ID: mdl-21980813
ABSTRACT
We aimed in this study to determine the cardiac reserve in preterm infants with phonocardiogram. One hundred and fifty-four preterm infants participated in this study. The ratio of the first heart sound to the second heart sound (S1/S2), the ratio of diastolic to systolic duration (D/S) and the cardiac contractility change trend after stimulation (CCCTS) were measured in all infants. The preterm neonatal S1/S2 decreased with increasing gestational age, but the differences between each gestational stage were not significant (p > 0.05), while the D/S significantly increased with increasing gestational age (p < 0.05). After crying induced by vaccination, the D/S was significantly lower than that in quiet state at each gestational stage (p < 0.05). The CCCTS increased with increasing gestational weeks, but the differences between each gestational stage were not significant (p > 0.05).
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fonocardiografia
/
Recém-Nascido Prematuro
/
Coração
Limite:
Humans
/
Newborn
Idioma:
En
Revista:
Turk J Pediatr
Ano de publicação:
2011
Tipo de documento:
Article