Chew F T, Drew J H, Oats J N, Riley S F, Beischer N A
Am J Obstet Gynecol. 1985 Feb 1;151(3):318-21. doi: 10.1016/0002-9378(85)90294-7.
In a prospective study of 409 patients monitored with nonstressed antepartum cardiotocography and delivered by elective cesarean section, cardiotocography was requested for 170 because of clinical indications. This group had higher incidences of abnormal cardiotocography (p less than 0.001), fetal growth retardation (p less than 0.001) and neonatal deaths (p less than 0.025) than had the group without such requests, suggesting that clinicians effectively selected the high-risk pregnancy for testing of fetal well-being. Cardiotocographic evidence of critical reserve was found in 17 of 170 patients (10%) tested for a clinical indication and in none of the 239 patients in the control group. Patients with abnormal cardiotocography results had significantly higher incidences of cord arterial blood pH less than 7.26 (p less than 0.05) and Apgar scores of less than 6 at 1 minute (p less than 0.001), showing that an abnormal cardiotocogram is indicative of a fetus at risk of having hypoxia.
在一项对409例接受无应激产前胎心监护并择期剖宫产分娩的患者的前瞻性研究中，170例因临床指征而进行了胎心监护。与未进行此类检查的患者组相比，该组胎心监护异常（p<0.001）、胎儿生长受限（p<0.001）及新生儿死亡（p<0.025）的发生率更高，提示临床医生有效地筛选出了高危妊娠以检测胎儿健康状况。在170例因临床指征接受检查的患者中有17例（10%）发现有临界储备的胎心监护证据，而对照组的239例患者中无一例出现此情况。胎心监护结果异常的患者脐动脉血pH<7.26（p<0.05）及1分钟时阿氏评分<6分（p<0.001）的发生率显著更高，表明异常胎心监护提示胎儿有缺氧风险。
