Unit
- Cardiovascular adaptation: After birth, the neonatal heart transitions from fetal circulation. Foramen ovale and ductus arteriosus close, and pulmonary vascular resistance drops. Transport teams must recognize that any stress can cause reversion to fetal shunting, compromising oxygenation.
- Respiratory system: Neonatal lungs are surfactant-deficient in preterm infants. This leads to atelectasis and increased work of breathing. During transport, maintaining positive end-expiratory pressure (PEEP) is vital to prevent alveolar collapse.
- Neurologic vulnerability: The neonatal brain has an immature blood-brain barrier and autoregulation. Hypoxia, hyperoxia, or rapid pressure changes can cause intraventricular hemorrhage. Gentle handling and stable oxygen delivery are mandatory.
- Renal function: Newborn kidneys have reduced glomerular filtration rate and concentrating ability. Fluid balance is delicate; dehydration or fluid overload can occur quickly. Transport teams should track input and output meticulously.
- Hepatic immaturity: The liver has limited glycogen stores, placing neonates at risk for hypoglycemia. Regular glucose monitoring and early feeding or intravenous dextrose are required during extended transports.
- Immune system: Neonates have deficient cellular and humoral immunity. Infection risk is high; strict aseptic technique for all invasive lines and equipment is essential.
- Metabolic rate: High surface-area-to-body-mass ratio increases heat loss. Thermoregulation is a core challenge; even mild hypothermia increases oxygen consumption and morbidity.
- Hematologic considerations: Physiologic anemia is common due to shortened red cell lifespan and rapid growth. Transport teams must assess hematocrit and be prepared for transfusion if hemorrhagic shock occurs.
- Gastrointestinal function: The neonatal gut has immature peristalsis and enzyme production. Feedings are often withheld during transport to reduce aspiration risk, but gastric decompression with an orogastric tube is indicated. Transport teams must monitor for abdominal distension and bilious residuals which signal potential necrotizing enterocolitis.
- Pain and stress management: Neonates perceive pain and stress, which can destabilize vital signs and increase intracranial pressure. Implementing nonpharmacologic measures such as swaddling and pacifiers, along with weight-appropriate analgesics, is essential. Consistent pain assessment using validated scales improves outcomes.
- Transport equipment considerations: The transport incubator must provide stable temperature, humidity, and access to ventilatory support. Teams must ensure battery life and gas supply are sufficient for the entire journey. Preflight checklists reduce the risk of equipment failure en route.
- Communication and documentation: Clear handoff communication between referring and receiving teams is critical. Documentation should include vital signs, interventions, and any changes in status every 15 minutes. Structured tools like the SBAR framework improve information transfer and reduce errors.
Terminology
- Surfactant
- A phospholipid substance that reduces surface tension in alveoli, preventing collapse at end-expiration.
- Fetal circulation
- The circulatory pattern before birth, characterized by shunts (foramen ovale, ductus arteriosus) that bypass the lungs.
- Intraventricular hemorrhage
- Bleeding into the brain's ventricular system, common in premature infants and associated with poor neurodevelopmental outcomes.
Quick Revision
- Neonatal cardiovascular adaptation involves closure of fetal shunts; stress can trigger reversion.
- Preterm infants lack surfactant, requiring PEEP to maintain alveolar patency.
- Blood-brain barrier immaturity necessitates stable oxygen delivery to prevent IVH.
- Renal immaturity demands careful fluid balance monitoring during transport.
- Limited hepatic glycogen stores make glucose monitoring critical.
- Aseptic technique is mandatory due to immune system deficiencies.
- High heat loss risk requires proactive thermoregulation strategies.
- Hematologic assessment influences readiness for transfusion if needed.