Objective: To determine the appropriate duration of prolonged monitoring following decelerations noted on outpatient non-stress test (NST).
Conclusion: Prolonged monitoring beyond 120 min is not associated with increased rate of delivery secondary to NRFS or worse neonatal outcome measured by the 5 minute Apgar score. Monitoring after a deceleration on outpatient NST may be limited to less than 120 minutes. Larger studies are needed to confirm this finding.
Koduri, MD, P.; Giraldo, MD, M.; Berghella, MD, V.; and Chauhan, MD, S. P., "Prolonged Monitoring After Decelerations on Outpatient Non-Stress Tests: How Long is Enough?" (2009). Department of Obstetrics and Gynecology Faculty Papers. Paper 6.