Superior mesenteric artery blood flow velocity in small for gestational age infants of very low birth weight during the early neonatal period
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Kenichi Maruyama
Abstract
In order to elucidate intestinal blood flow after birth in infants with intrauterine growth retardation, we measured superior mesenteric artery blood flow velocity in uncomplicated small for gestational age infants with a birth weight of < 1500 g by pulsed Doppler ultrasound in days 1 to 7 of life. Peak systolic blood flow velocity, time-averaged mean blood flow velocity and end-diastolic blood flow velocity in the superior mesenteric artery significantly increased with time. The resistance index and relative vascular resistance in the superior mesenteric artery significantly decreased after birth. Compared with gestational age matched appropriate for gestational age infants and birth weight matched appropriate for gestational age ones, peak systolic blood flow velocity, time-averaged mean blood flow velocity and end-diastolic blood flow velocity in the superior mesenteric artery were lower in the small for gestational age infants. The difference between the small for gestational age group and the gestational age matched appropriate for gestational age group was statistically significant. The resistance index and relative vascular resistance in the superior mesenteric artery tend to be higher in the small for gestational age group than in the appropriate for gestational age groups. In conclusion, although intestinal blood flow velocity in infants with intrauterine growth retardation increases after birth, it is lower than appropriate for gestational age infants during the early neonatal period.
Copyright © 2001 by Walter de Gruyter GmbH & Co. KG
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Artikel in diesem Heft
- Fetal pulse oximetry: current issues
- Ketanserin for the treatment of preeclampsia
- 11β-hydroxysteroid dehydrogenase (11β-HSD-II) activity in human placenta: Its relationship to placental weight and birth weight and its possible role in hypertension
- Cervical incompetence: the use of selective and emergency cerclage
- Detection of cervical immunoglobulin A in normal pregnancy
- 24 hour-CTG monitoring: comparison of normal pregnancies and pregnancies with placenta insufficiency
- Chlamydia trachomatis infection and the risk of perinatal mortality in Hungary
- Respiratory distress in heavier versus lighter twins
- Superior mesenteric artery blood flow velocity in small for gestational age infants of very low birth weight during the early neonatal period
- Longitudinal observation of deterioration of Doppler parameters, computerized cardiotocogram and clinical course in a fetus with growth restriction
- First-trimester ultrasonographic investigation of cardiovascular anatomy in thoracoabdominally conjoined twins
- Low taurine, gamma-aminobutyric acid and carnosine levels in plasma of diabetic pregnant rats: consequences for the offspring
- Spastic diplegia is not associated with intrapartum hypoxia
