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Updated: Apr 15, 2026

The Perinatal Asphyxiated Lamb Model: A Model for Newborn Resuscitation
Published on: August 15, 2018
Resuscitator's perceptions and time for corrective ventilation steps during neonatal resuscitation.
Vinay Sharma1, Satyan Lakshminrusimha1, Vivien Carrion1
1Division of Neonatology, Department of Pediatrics, The Women and Children's Hospital of Buffalo, University of Buffalo, 219 Bryant Street, Buffalo, NY, United States.
Neonatal providers may delay chest compressions by using mask ventilation corrective steps (MRSOPA). In cardiac arrest, providers opted for endotracheal intubation over corrective steps, initiating compressions faster than in bradycardia cases.
Area of Science:
- Neonatal Resuscitation
- Pediatric Emergency Medicine
- Cardiopulmonary Physiology
Background:
- The 2010 Neonatal Resuscitation Program (NRP) guidelines integrated ventilation corrective steps (MRSOPA) into the resuscitation algorithm.
- The clinical utility, provider perception, and time efficiency of these MRSOPA steps remain unevaluated.
Purpose of the Study:
- To evaluate neonatal providers' preference for performing ventilation corrective steps (MRSOPA).
- To assess the time taken for MRSOPA maneuvers and time to chest compression onset during simulated neonatal resuscitation.
- To compare provider responses in scenarios of bradycardia versus cardiac arrest.
Main Methods:
- 35 NRP-certified providers participated in two simulated neonatal resuscitation scenarios: perinatal asphyxia with bradycardia and cardiac arrest.
- Data collected included preference for corrective measures, time for MRSOPA, and time to chest compression initiation.
- Providers' professional roles and experience levels were also considered.
Main Results:
- The average time to perform MRSOPA was 48.9 ± 21.4 seconds.
- Providers were less likely to perform corrective steps and more likely to proceed to endotracheal intubation in cardiac arrest compared to bradycardia.
- Chest compressions were initiated significantly sooner in cardiac arrest (89 ± 24 s) than in bradycardia (122 ± 23 s).
Conclusions:
- Mask ventilation with corrective steps is crucial for most neonatal resuscitations.
- Neonatal providers prioritize early endotracheal intubation and chest compressions in asystolic cardiac arrest.
- Implementing corrective ventilation steps may delay chest compressions and potentially impede the return of spontaneous circulation in severe cardiovascular compromise.
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