Non-stress test as an admission test to assess the outcome in high-risk pregnancy
Keywords:NST, High risk group, Low risk group
Background: Perinatal deaths are still a significant problem in India. Therefore, there is a need for effective fetal surveillance, in order to improve the outcomes of pregnancy.
Methods: This was a prospective study including fifty one females with high-risk pregnancy and 50 with low risk pregnancy. The included participants were subjected to NST done using a cardiotocograph with ultrasound transducer placed on maternal abdomen for duration of 20 min. The NST results were classified into reactive and non-reactive. Subjects were then followed up for mode of delivery and different variables of perinatal outcome.
Results: Majority of study subjects were in the age group of 26-30 years (n=74; 73.3%). The period of gestation in 74 (73.3%) subjects was 37-38 weeks. Gestational diabetes mellitus was the most common risk factor in the high-risk group (n=22; 43.1%).The NST was non-reactive in 6 and 4 subjects in the high-risk and low-risk groups respectively (p=0.741). Only 3 subjects in the high-risk group had a vaginal delivery, while 33 in low-risk group did.
Conclusions: We did not find any significant difference in the results of the NST between women with high and low-risk pregnancy. But this test is a promising basic screening tool in pregnancy to assess fetal well-being.
Patel S, Gupta S, Modi K. Correlation of Admission NST in Low Risk Pregnancy with Neonatal Outcome. Am J Ethnomed. 2015;2(2).
Himabindu P, Tripura Sundari M, Pavani S. Evaluation of non-stress test in monitoring high risk pregnancies. IOSR Journal of Dental and Medical Sciences. 2015;14(4):40-2.
Lohana RU, Khatri M, Hariharan C. Correlation of non stress test with fetal outcome in term pregnancy (37-42 Weeks). Int J Reprod Contracept Obstet Gynecol. 2013;2(4):639-45.
ACOG Practice Bulletin Number 145: Antepartum Fetal Surveillance, July 2014. Obstet Gynecol. 2014;124:182-92.
Vintizileos MA. Antepartum fetal surveillance. The NST. In: Clinical Obstetrics and Gynecology. 1995;30(1).
Arias F, Bhide AG, Arulkumaran S. The Non-stress test. In: Practical Guide to High Risk Pregnancy and Delivery. Elsevier Health Sciences. 2012.
Biswas A, Biswas S, Walliuallah M. Role of non stress test in monitoring high risk pregnancy. Ind Med Gazette. 2013:43-48.
El-Edessy MS, Nasr AAM, Mustafa FA, et al. High risk pregnancy outcomes in upper egypt: umbilical artery doppler versus non stress test. Am J Res Comm. 2014:2(1):75-85.