Hasegawa J, Matsuoka R, Ichizuka K, Sekizawa A, Farina A, Okai T
Department of Obstetrics and Gynecology, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8666, Japan.
Int J Gynaecol Obstet. 2005 Jul;90(1):26-30. doi: 10.1016/j.ijgo.2005.03.028.
To examine intrapartum fetal heart rate (FHR) patterns in the presence of velamentous cord insertion (VCI).
The site of cord insertion was determined in 1460 women on antenatal ultrasonographic and postnatal examinations. Each of 24 women with pregnancies complicated with VCI was matched at the onset of labor with 10 women who had a normal pregnancy, and FHR patterns were analyzed for both cases and controls.
Compared with controls, cases of variable decelerations with no accelerations (VDNA) during the first and second stages of labor were more frequent in women with VCI (first stage: 25% vs. 5.1%, second stage: 65.0% vs. 21.7%, P < 0.001). The adjusted odds ratio associated with VDNA occurrence in women with VCI was 3.83 (95% confidence interval [CI]: 1.51-9.72, P = 0.005). The mean odds ratio associated with length of aberrant vessels in women with VCI plus VDNA was 1.38 (95% CI: 1.04-1.83, P = 0.026).
Pregnancies complicated with VCI are associated with a higher rate of VDNA.
研究帆状脐带附着(VCI)情况下的产时胎儿心率(FHR)模式。
通过产前超声检查和产后检查确定了1460名女性的脐带附着部位。24例合并VCI妊娠的女性在分娩开始时与10例正常妊娠女性进行匹配,对病例组和对照组的FHR模式进行分析。
与对照组相比,VCI女性在第一产程和第二产程中出现无加速的变异减速(VDNA)的情况更为频繁(第一产程:25%对5.1%,第二产程:65.0%对21.7%,P<0.001)。VCI女性发生VDNA的校正比值比为3.83(95%置信区间[CI]:1.51 - 9.72,P = 0.005)。VCI合并VDNA女性中异常血管长度相关的平均比值比为1.38(95%CI:1.04 - 1.83,P = 0.026)。
合并VCI的妊娠与较高的VDNA发生率相关。