Department of Midwifery, Faculty of Nursing and Midwifery, Tabriz University of Medical Sciences, Tabriz, Iran.
Arch Gynecol Obstet. 2013 Jun;287(6):1105-10. doi: 10.1007/s00404-012-2695-6. Epub 2013 Jan 18.
Non-stress test (NST) is known as one of the most common assessments for evaluation of fetus well being. Since the prevalence of its false positive results is high and majority of fetuses with non-reactive results are not at risk, it is important to find out effective approaches to identify such results to avoid unnecessary interventions. So this survey was conducted with the aim of comparing the effects of acoustic stimulation with feeding mothers stimulation on non-reactive NST results.
This study preformed on 104 healthy pregnant women with non-reactive NST results and gestational ages between 32 and 42 weeks in Tabriz Alzahra hospital. Subjects were divided into two groups for acoustic stimulation and feeding mother stimulation. Half an hour later NST repeated for participants of each group in the same environmental condition and again the results evaluated.
According to our findings, 75 % of subjects with non-reactive NST results changed to reactive after acoustic stimulation group. However, 80 % of participants with non-reactive NST results changed into reactive after feeding stimulation. No significant differences found while comparing test results.
Both stimulating approaches were effective in the identification of false positive NSTs and might be useful in preventing the unnecessary interventions.
无应激试验（NST）是评估胎儿健康状况最常用的评估方法之一。由于其假阳性结果的发生率较高，且大多数无反应结果的胎儿并无风险，因此找到有效方法来识别这些结果以避免不必要的干预非常重要。因此，进行了这项调查，旨在比较声刺激与母亲喂养刺激对无反应 NST 结果的影响。
本研究在大不里士 Alzahra 医院对 104 名胎龄在 32 至 42 周之间、NST 结果无反应的健康孕妇进行了研究。将受试者分为声刺激组和母乳喂养刺激组。半小时后，在相同的环境条件下对每组参与者重复进行 NST，再次评估结果。
根据我们的发现，声刺激组 75%的无反应 NST 结果在刺激后变为有反应。然而，在母乳喂养刺激组中，80%的无反应 NST 结果在刺激后变为有反应。在比较测试结果时未发现显著差异。
两种刺激方法均能有效识别假阳性 NST，并可能有助于预防不必要的干预。
