Fetal cerebral blood flow velocity during labor and the early neonatal period
Maesel, A ; Sladkevicius, Povilas LU
; Valentin, Lil
LU
and Marsal, Karel
LU
(1994)
In Ultrasound in Obstetrics & Gynecology
4(5).
p.372-376
- Abstract
- This study was performed to elucidate circulatory changes in the fetal cerebral circulation during uncomplicated labor and in early neonatal life. Eighteen healthy term singleton fetuses were followed longitudinally during labor. Using the transabdominal approach, and the color Doppler technique, the middle cerebral artery was identified and Doppler flow velocity waveforms recorded between and during uterine contractions. Neonatal recordings were made by insonating the middle cerebral artery from the temporal region before and immediately after the cutting of the umbilical cord, and at 1 hour and 1 day after birth. The recorded Doppler signals were evaluated for pulsatility index, heart rate, peak systolic flow velocity, end-diastolic flow... (More)
- This study was performed to elucidate circulatory changes in the fetal cerebral circulation during uncomplicated labor and in early neonatal life. Eighteen healthy term singleton fetuses were followed longitudinally during labor. Using the transabdominal approach, and the color Doppler technique, the middle cerebral artery was identified and Doppler flow velocity waveforms recorded between and during uterine contractions. Neonatal recordings were made by insonating the middle cerebral artery from the temporal region before and immediately after the cutting of the umbilical cord, and at 1 hour and 1 day after birth. The recorded Doppler signals were evaluated for pulsatility index, heart rate, peak systolic flow velocity, end-diastolic flow velocity and time-averaged maximum velocity. There was no change in the pulsatility index between and during contractions (1.39 +/- 0.36 and 1.40 +/- 0.39, respectively, mean +/- SD). A significant decrease in the pulsatility index compared to fetal values was seen 4 min after birth (1.06 +/- 0.30, p < 0.01). One hour after birth, the pulsatility index values increased significantly (1.52 +/- 0.25, p < 0.001), to fall again between I hour and 1 day after birth (0.95 +/- 0.26, p < 0.001). Mechanical compression of the skull, blood gas changes and a decrease in ductal shunting may all have contributed to these changes. The present study has shown physiological neonatal circulatory adaptation and onset of breathing to cause manifest changes in cerebral blood flow velocity. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1108392
- author
- Maesel, A
; Sladkevicius, Povilas
LU
; Valentin, Lil
LU
and Marsal, Karel
LU
- organization
- publishing date
- 1994
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- fetus, central nervous system, blood flow, Doppler ultrasound, labor, neonate
- in
- Ultrasound in Obstetrics & Gynecology
- volume
- 4
- issue
- 5
- pages
- 372 - 376
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- scopus:84989065221
- ISSN
- 1469-0705
- DOI
- 10.1046/j.1469-0705.1994.04050372.x
- language
- English
- LU publication?
- yes
- id
- f5db18b9-6d61-427c-a581-6f9789a28d27 (old id 1108392)
- date added to LUP
- 2016-04-01 16:31:15
- date last changed
- 2021-01-03 05:21:37
@article{f5db18b9-6d61-427c-a581-6f9789a28d27,
abstract = {{This study was performed to elucidate circulatory changes in the fetal cerebral circulation during uncomplicated labor and in early neonatal life. Eighteen healthy term singleton fetuses were followed longitudinally during labor. Using the transabdominal approach, and the color Doppler technique, the middle cerebral artery was identified and Doppler flow velocity waveforms recorded between and during uterine contractions. Neonatal recordings were made by insonating the middle cerebral artery from the temporal region before and immediately after the cutting of the umbilical cord, and at 1 hour and 1 day after birth. The recorded Doppler signals were evaluated for pulsatility index, heart rate, peak systolic flow velocity, end-diastolic flow velocity and time-averaged maximum velocity. There was no change in the pulsatility index between and during contractions (1.39 +/- 0.36 and 1.40 +/- 0.39, respectively, mean +/- SD). A significant decrease in the pulsatility index compared to fetal values was seen 4 min after birth (1.06 +/- 0.30, p < 0.01). One hour after birth, the pulsatility index values increased significantly (1.52 +/- 0.25, p < 0.001), to fall again between I hour and 1 day after birth (0.95 +/- 0.26, p < 0.001). Mechanical compression of the skull, blood gas changes and a decrease in ductal shunting may all have contributed to these changes. The present study has shown physiological neonatal circulatory adaptation and onset of breathing to cause manifest changes in cerebral blood flow velocity.}},
author = {{Maesel, A and Sladkevicius, Povilas and Valentin, Lil and Marsal, Karel}},
issn = {{1469-0705}},
keywords = {{fetus; central nervous system; blood flow; Doppler ultrasound; labor; neonate}},
language = {{eng}},
number = {{5}},
pages = {{372--376}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Ultrasound in Obstetrics & Gynecology}},
title = {{Fetal cerebral blood flow velocity during labor and the early neonatal period}},
url = {{http://dx.doi.org/10.1046/j.1469-0705.1994.04050372.x}},
doi = {{10.1046/j.1469-0705.1994.04050372.x}},
volume = {{4}},
year = {{1994}},
}