Return of autonomic nervous activity after delivery: role of aortocaval compression

被引：13

作者：

Chen, GY

Kuo, CD ^{[5
]}

Yang, MJ

Lo, HM

Tsai, YS

机构：

[1] Prov Tao Yuan Gen Hosp, Dept Med, Tao Yuan, Taiwan

[2] Natl Yang Ming Univ, Sch Med, Inst Clin Med, Taipei 112, Taiwan

[3] Vet Gen Hosp, Dept Obstet & Gynaecol, Taipei, Taiwan

[4] Chung Yuan Christian Univ, Dept Biomed Engn, Chungli, Taiwan

[5] Vet Gen Hosp, Resp Therapy Dept, Cardiopulm Lab, Taipei 112, Taiwan

来源：

BRITISH JOURNAL OF ANAESTHESIA | 1999年 / 82卷 / 06期

关键词：

heart; heart rate; sympathetic nervous system; activity; parasympathetic nervous system; pregnancy; complications; aortocaval compression; position; effects;

D O I：

10.1093/bja/82.6.932

中图分类号：

R614 [麻醉学];

学科分类号：

100217 ;

摘要：

We have compared measures of heart rate variability (HRV) in 15 women in late pregnancy before and 3 months after delivery and in 20 non-pregnant controls, to study the effect of aortocaval compression on autonomic nervous activity. Normalized high-frequency power was used as an index of vagal activity and the low-/high-frequency power ratio as an index of sympathovagal balance. We found that the decrease in vagal activity and increase in sympathovagal balance before delivery returned to normal 3 months after delivery. Percentage changes in vagal activity and sympathovagal balance 3 months after delivery in the left lateral decubitus position were least among three recumbent positions. The relief of aortocaval compression as a result of delivery of the fetus may be the main cause of return of autonomic nervous activity 3 months after delivery. Postpartum hormonal changes may also contribute to return of autonomic nervous activity after delivery.

引用

页码：932 / 934

页数：3

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