Newborn Apnea: Breathing at Birth, Safe Limits & Resuscitation

Most term infants breathe spontaneously within 30-60 seconds of birth. Delayed onset requires prompt intervention.

Primary Apnea

Brief pause (usually <20 seconds) after birth; responds to tactile stimulation (drying, rubbing back, flicking feet).

Secondary Apnea

Prolonged absence of breathing due to hypoxia/ischemia; does not respond to stimulation alone—requires positive pressure ventilation (PPV).

Safe Time Limits (NRP Guidelines)

• Term infant: Initiate PPV if apneic or gasping at 60 seconds after birth; chest compressions + epinephrine if HR <60 bpm after 30 sec effective PPV.
• Preterm (<37 weeks): Even shorter tolerance; PPV by 30-60 seconds; proactive CPAP/intubation often indicated.
• Brain injury risk: Increases significantly after 5-10 minutes of severe hypoxia; irreversible after ~20 minutes.

Critical Interventions

1. Warm, dry, stimulate (term).
2. Clear airway if obstructed (suction only if meconium + non-vigorous).
3. PPV with 21% O2 (term) or 21-30% (preterm) via T-piece or bag-mask.
4. Monitor HR (ECG preferred), SpO2, ETCO2.
5. Chest compressions (3:1 ratio) + IV/IO epinephrine if HR <60 despite 30 sec effective PPV.

Key Point

Time is brain. Every second of delay in effective ventilation increases morbidity. Simulation training and team readiness are essential for all delivery attendants.