Dynamics of pulmonary venous flow in fetuses with intrauterine growth restriction.
Prenat Diagn
; 35(3): 249-53, 2015 Mar.
Article
em En
| MEDLINE
| ID: mdl-25388941
ABSTRACT
OBJECTIVE:
To test the hypothesis that the pulmonary vein pulsatility index (PVPI) is higher in fetuses with growth restriction (IUGR) than in normal fetuses.METHODS:
Twenty-two fetuses with IUGR and twenty-one (21) fetuses with appropriate growth for gestational age from healthy mothers were studied. PVPI was calculated by Doppler echocardiography [maximal velocity (systolic or diastolic peak) - pre-systolic peak / mean velocity]. Obstetric ultrasound was used to assess fetal biometry and Doppler to assess the uterine, umbilical and middle cerebral arteries PI. Statistical analysis used t test and Pearson's correlation.RESULTS:
Mean gestational age was 31.5 +/- 2.1 weeks in the control group and 31.4 +/- 3.1 weeks in IUGR (P = 0.91). The PI of uterine and umbilical arteries were higher in IUGR than in controls (P < 0.001). Mean PVPI in IUGR fetuses was 1.31 +/- 0.41, and in controls it was 0.83 +/- 0.11 (P < 0.001).CONCLUSION:
The pulsatility index of pulmonary venous flow in fetuses with growth restriction is higher than in normal fetuses, probably as a result of left atrial dynamics alteration secondary or not to fetal left ventricular diastolic dysfunction. © 2014 John Wiley & Sons, Ltd.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Veias Pulmonares
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Fluxo Pulsátil
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Circulação Pulmonar
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Retardo do Crescimento Fetal
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Coração Fetal
Tipo de estudo:
Diagnostic_studies
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Observational_studies
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Prevalence_studies
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Risk_factors_studies
Limite:
Adolescent
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Adult
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Female
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Humans
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Pregnancy
Idioma:
En
Revista:
Prenat Diagn
Ano de publicação:
2015
Tipo de documento:
Article
País de afiliação:
Brasil