TO STUDY ANTEPARTUM CARDIOTOCOGRAPHY FINDINGS IN OLIGOHYDRAMNIOS AT TERM AND ITS CORRELATION WITH FETAL OUTCOME

Abstract

Abstract

Aim: To study the antepartum cardiotocography findings in oligohydramnios at term  and its correlation with fetal outcome.

Methodology: The prospective study of 60 antenatal cases of oligohydramnios at term was carried out  in the department of OBG, Apollo Institute of Medical Sciences &Research center and District Head quarter Hospital, Chittoor, Andhra Pradesh . A thorough history was collected and general examination was performed upon admission. Ultrasound was used to determine the AFI. Informed consent was taken, after explaining patients regarding the procedure. In antepartum women with oligohydramnios at term at the time of admission , CTG was done and  the trace was graded into normal, suspicious and pathological trace.

Results: Out of 60 patients, 53.3% had normal trace, 23.3% patients had suspicious  trace, and 23.3%patients had pathological trace. Among patients with normal trace, 18 had fetal distress i.e., 56.3% . Among 14patients with suspicious trace, 12 patients had developed fetal distress i.e., 85.7%. Out of14 patients with pathological trace, 12 had fetal distress i.e., 85.7%. 46.6% of neonates in suspicious and pathological CTG trace  group21.4% had Apgar <7 at 5thminute. Irrespective of APGAR score neonates required NICU admission because of meconium stained liquor and some respiratory pathology. Among 60 patients with oligohydramnios 46(76.7%) had LSCS which suggests    increased operative interventions. Sensitivity of the CTG test in oligohydramnios in diagnosing fetal distress   was 78.9%. Specificity of the CTG     test       in oligohydramnios in diagnosing fetal distress was58.5%. Positive predictive value of the CTG test in oligohydramnios in diagnosing   fetal distress was 46.9%. Negative predictive value of the CTG test in oligohydramnios in diagnosing   fetal distress was 85.7 %.

Conclusion: CTG test in oligohydramnios at term was useful in decreasing the neonatal morbidity by early intervention in suspicious & pathological CTG traces as in this study.