Beat-to-Beat Variability During Auditory Music in Fetus and Mother: A Clinical Trial
نویسندگان
1 Department of Midwifery, Community Based Psychiatric Care Research Center, School of Nursing and Midwifery, Shiraz University of Medical Sciences, Shiraz, IR Iran
2 Department of Midwifery, Community Based Psychiatric Care Research Center, School of Nursing and Midwifery, Shiraz University of Medical Sciences, Shiraz, IR Iran
3 Department of Midwifery, Firoozabad Branch, Islamic Azad University, Firoozabad, Iran
4 Maternal-Fetal Medicine Research Center, Department of Midwifery, School of Nursing and Midwifery, Shiraz University of Medical Sciences, Shiraz, IR Iran
5 Department of Obstetrics and Gynecology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, IR Iran
6 Department of Biostatistics, School of Medicine, Infertility Research Center, Shiraz University of Medical Sciences, Shiraz, IR Iran
doi
10.5812/whb.13083چکیده
Background: Non-stress test is the most widely used test to assess fetal status. The presence of beat-to-beat variability is reassuring while its absence is not reassuring.Methods: In this single-blind clinical trial, 213 pregnant women with gestational age of 37 - 41 weeks were randomly allocated into three groups (auditory intervention for mother, auditory intervention for fetus, and control), each containing 71 subjects. The data were analyzed using one-way ANOVA followed by Tukey HSD test and Kruskal-Wallis test. In addition, paired t-test was used to compare each group before and after the intervention.Results: The results showed a significant difference among the three groups regarding beat-to-beat variability of fetal heart rate in the second 10 minutes of the test (P = 0.006). Besides, the results of Tukey HSD test indicated that this difference was significant between the control group and auditory intervention for mother group (P = 0.004). Moreover, the results of t-test showed a significant difference in beat-to-beat variability of fetal heart rate between the first and the second 10 minutes of the test in both groups of auditory intervention for mother (P < 0.001) and for fetus (P < 0.001).Conclusions: Since beat-to-beat variability of the fetal heart rate is indicator of fetal health, music intervention can be used to increase the number of accelerations and reduce false positive results in NST.
