Objective: To determine the efficacy of amniotic fluid volume (AFV) assessment in predicting intrapartum fetal distress in postterm pregnancy compared with the conventional nonstress test (NST).
Method: A prospective study of 252 postterm patients who underwent antepartum assessment of AFV and NST with intrapartum continuous FHR monitoring was conducted and subjected to analysis.
Result: AFV was significantly more accurate in predicting intrapartum fetal distress than the NST with sensitivity, specificity, positive and negative predictive values of 72.73%, 90.87%, 26.67% and 98.65%, respectively.
Conclusion: AFV assessment was an effective method in predicting fetal distress in postterm pregnancy.