Adaptive responses of cardiac function to fetal postural change as gestational age increases
- Authors
- 김우진; 최혜진; 양선영; 구부해; 안기훈; 조금준; 홍순철; 오민정; 김해중
- Issue Date
- 2016
- Publisher
- 대한산부인과학회
- Keywords
- Fetus; Gestational age; Postural change; Tei index
- Citation
- Obstetrics & Gynecology Science, v.59, no.6, pp 427 - 433
- Pages
- 7
- Indexed
- KCI
- Journal Title
- Obstetrics & Gynecology Science
- Volume
- 59
- Number
- 6
- Start Page
- 427
- End Page
- 433
- URI
- https://scholarworks.korea.ac.kr/kumedicine/handle/2020.sw.kumedicine/29793
- DOI
- 10.5468/ogs.2016.59.6.427
- ISSN
- 2287-8572
2287-8580
- Abstract
- ObjectiveThe cardiovascular system maintains homeostasis through a series of adaptive responses to physiological requirements. However, little is known about the adaptation of fetal cardiac function to gravity, according to gestational age. In the present study, we aimed to evaluate the adaptive responses of cardiac function to postural changes, using Tei index measurements.
MethodsFetal echocardiography and Doppler examination were performed on 114 women with vertex singleton pregnancies at 19 to 40 weeks' gestation. Participants were placed in an upright seated position, and the Tei index for fetal left ventricular cardiac function was measured. The women were then moved into a supine position and the Tei index was re-measured.
ResultsThe mean Tei index when measured in an upright seated position was significantly lower than that measured in a supine positioning for all fetuses (0.528±0.103 vs. 0.555±0.106, P=0.014, respectively). This difference was also noted in fetuses with a gestational age of 28–40 weeks (0.539±0.107 vs. 0.574±0.102, P=0.011, respectively). However, there was no difference in the Tei index between an upright seated and a supine position among fetuses with a gestational age of <28 weeks (0.505±0.091 vs. 0.516±0.103, P=0.571, respectively).
ConclusionPostural changes from an upright seated to a supine position result in an increased Tei index after a gestational age of 28 weeks. This appears to reflect maturation in the adaptive responses of the fetal cardiovascular system to postural changes.
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- Appears in
Collections - 2. Clinical Science > Department of Obstetrics and Gynecology > 1. Journal Articles
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