Prenatal diagnosis · 2014
Dynamics of pulmonary venous flow in fetuses with intrauterine growth restriction.
СтатьяНаблюдательное исследованиеПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Bravo-Valenzuela Nathalie J M, Zielinsky Paulo, Huhta James C, Acacio Gregório L, Nicoloso Luiz H, Piccoli Antonio, Busato Stefano, Klein Caroline
Аннотация
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.
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.
Предметные рубрики MeSH
AdolescentAdultCase-Control StudiesCross-Sectional StudiesEchocardiography, DopplerFemaleFetal Growth RetardationFetal HeartHemodynamicsHumansMiddle Cerebral ArteryPregnancyProspective StudiesPulmonary CirculationPulmonary VeinsPulsatile FlowUltrasonography, PrenatalUmbilical ArteriesUterine ArteryYoung Adult