THE ROLE OF ULTRASONOGRAPHIC MEASUREMENT OF FETAL ADRENAL GLAND SIZE FOR THE PREDICTION OF SUCCESS OF INDUCTION OF LABOUR AMONG PRIMIGRAVIDA

Abstract

Aim: The goal of the current study is in order to evaluate the efficiency of using transvaginal cervical length, Bishop score, and ultrasound measurements of foetal adrenal gland size, particularly the foetal zone ratio (FZR), to predict the effectiveness of induction of labour (IOL) in first-time mothers women at term. Methods: Hospital-based cross-sectional analytical research is performed over 12 months at Sree Balaji Medical College and Hospital's Obstetrics and Gynaecology Department, Chennai, comprising 130 primigravida women at 40 weeks of gestation, chosen by selective sampling. Ultrasonographic assessments of foetal adrenal gland size were conducted, and FZR is computed. Measurements of cervical length and Bishop score were evaluated before induction. Participants were classified into successful and unsuccessful IOL groups, and statistical analyses, including independent were performed, including t-tests and ROC curve analysis. Results: The research revealed markedly greater foetal adrenal dimensions and foetal zone ratios in the effective induction of labour category when contrasted with the failed category (p < 0.01). A successful induction correlated with an elevated Bishop score, reduced cervical length, shorter intervals from induction to labour and from induction to delivery, and an increased rate of vaginal delivery. Despite ROC analysis indicating minimal independent predictive value, foetal adrenal markers demonstrated a robust correlation with induction results. Conclusion: Ultrasonographic evaluation of foetal zone ratio, size of the unborn adrenal glands, in conjunction with traditional cervical assessment techniques, may provide a significant supplementary tool in forecasting the efficacy of labour induction in primigravida women, thereby enhancing clinical decision-making and optimising labour outcomes.