Hendler Israel, Baum Micha, Kreiser Doron, Schiff Eyal, Druzin Maurice, Stevenson David K, Seidman Daniel S
Department of Obstetrics and Gynecology, Sheba Medical Center, Tel-Hashomer, Tel-Aviv University, Tel-Aviv, Israel.
J Perinatol. 2004 May;24(5):275-8. doi: 10.1038/sj.jp.7211094.
To compare the levels of end-tidal carbon monoxide (ETCOc) among women with and without uterine contractions in term and preterm pregnancies.
In all, 55 nonsmoking healthy pregnant women were enrolled. ETCOc levels were compared among women with contractions (10 preterm and 13 term) and 32 women without contractions (34-41 weeks gestation).
Maternal age, gravidity and parity were similar among study and control groups. ETCOc levels were significantly lower among women that had uterine contractions (0.99+/-0.38 parts per million (ppm) and 1.15+/-0.34 p.p.m. respectively), compared to women with no contractions (1.70+/-0.52 p.p.m., P<0.002). However, there was no significant difference in the ETCOc levels between women with preterm or term contractions (P=0.48).
Low levels of ETCOc are associated with preterm and term uterine contractions.
比较足月妊娠和早产妊娠中有子宫收缩与无子宫收缩女性的呼气末一氧化碳（ETCOc）水平。
共纳入55名不吸烟的健康孕妇。比较有宫缩的女性（10例早产和13例足月产）与32例无宫缩女性（妊娠34 - 41周）的ETCOc水平。
研究组和对照组的产妇年龄、孕次和产次相似。与无宫缩的女性相比，有子宫收缩的女性ETCOc水平显著降低（分别为0.99±0.38百万分率（ppm）和1.15±0.34 ppm），无宫缩女性为1.70±0.52 ppm，P<0.002。然而，早产或足月宫缩女性的ETCOc水平无显著差异（P = 0.48）。
ETCOc水平低与早产和足月子宫收缩有关。
