Chazotte C, Forman L, Gandhi J
Department of Obstetrics and Gynecology, Albert Einstein College of Medicine, Bronx, New York.
Obstet Gynecol. 1991 Sep;78(3 Pt 1):323-5.
Heart rate patterns of 42 fetuses exposed to cocaine near the time of delivery were compared with patterns in 42 controls. Decreased long-term variability and an increased frequency of contractions were observed more often in the cocaine group (P = .046 and P = .0306, respectively). There were no significant differences in the frequency of fetal tachycardia or decelerations. Although accelerations were less frequent in cocaine-exposed fetuses, the difference compared with controls was not statistically significant. We found no characteristic heart rate pattern in fetuses exposed to cocaine near delivery. The heart rate patterns likely represent the underlying state of fetal oxygenation. Frequent contractions in an unstimulated labor should raise suspicions of maternal cocaine use.
将42例在分娩时接触可卡因的胎儿的心率模式与42例对照组的模式进行了比较。可卡因组更常观察到长期变异性降低和宫缩频率增加（分别为P = 0.046和P = 0.0306）。胎儿心动过速或减速的频率没有显著差异。虽然接触可卡因的胎儿的加速频率较低，但与对照组相比差异无统计学意义。我们发现在分娩时接触可卡因的胎儿中没有特征性的心率模式。心率模式可能代表胎儿氧合的潜在状态。在未受刺激的产程中频繁宫缩应引起对母亲使用可卡因的怀疑。
