Iams J D, Johnson F F, O'Shaughnessy R W
Department of Obstetrics and Gynecology, Ohio State University, Columbus.
Am J Perinatol. 1990 Apr;7(2):170-3. doi: 10.1055/s-2007-999473.
Care of women with preterm labor has been reported by Katz et al to be enhanced by use of an electronic uterine contraction monitor. We enrolled 76 women with singleton gestations who had been successfully treated for preterm labor into a prospective randomized trial, assigning subjects in a ratio of 1:2 to a group of 27 receiving education and self-palpation (EP) or to a group of 49 receiving education and an ambulatory monitor (EM). Subjects in both groups received an intensive education session at entry and were contacted frequently (5 days/week in EP and daily in EM) thereafter to report symptoms and frequency of contractions. Physicians were advised to adjust the dosage of oral tocolytic to maintain fewer than four contractions per hour. Rates of recurrent preterm labor and preterm delivery did not differ between the groups. Although the sample size in this study is too small to exclude entirely the possibility of alpha error, our inability to demonstrate a difference suggests that the improvement reported by others in pregnancy outcome associated with use of an electronic ambulatory contraction monitor may be the result of daily attention to symptoms and signs of preterm labor.
据卡茨等人报道，使用电子子宫收缩监测仪可改善早产女性的护理。我们将76名单胎妊娠且早产已成功治疗的女性纳入一项前瞻性随机试验，按照1:2的比例将受试者分为两组，一组27人接受教育和自我触诊（EP），另一组49人接受教育并使用动态监测仪（EM）。两组受试者在入组时均接受强化教育课程，此后经常联系（EP组每周5天，EM组每天）以报告症状和宫缩频率。建议医生调整口服宫缩抑制剂的剂量，以使每小时宫缩次数少于4次。两组复发性早产和早产分娩的发生率没有差异。尽管本研究的样本量太小，无法完全排除Ⅰ类错误的可能性，但我们未能证明存在差异表明，其他人报道的与使用动态电子宫缩监测仪相关的妊娠结局改善可能是由于每天关注早产的症状和体征所致。
