Introduction
- The transport of a sick neonate is a highly critical event that requires meticulous planning and execution.
- Whenever possible, in utero transfer of the mother to a higher-level facility is preferable to postnatal transport of a sick neonate.
- Safe transport requires equipped intensive care unit ambulances, trained manpower, structured communication, and timely referral protocols.
- The mobile environment places the baby at a high risk of destabilization due to movement, noise, vibration, and limited space.
Types Of Neonatal Transport
- Forward or Escalation Transfer: Transferring a neonate from a lower-level birth facility to a regional tertiary neonatal intensive care unit (NICU).
- Reverse Transfer: Transferring a recovering infant back to their birth hospital or a facility closer to home for ongoing step-down care.
- Wait and Return: A temporary transfer to a higher facility for specific investigations or treatments, followed by a return to the base hospital.
- Intra-hospital Transport: Moving the baby within the same hospital, such as from the delivery room to the NICU, operating theater, or radiology suite.
Indications For Transport
- Neonates are transported based on their need for advanced respiratory, cardiovascular, surgical, or specialized medical care.
| Category | Specific Clinical Conditions |
|---|---|
| Extreme Prematurity | Birth weight less than 1500 g or gestation less than 32 weeks. |
| Respiratory Failure | Severe respiratory distress needing continuous positive airway pressure (CPAP), mechanical ventilation, or inhaled nitric oxide (iNO). |
| Neurological | Perinatal asphyxia or hypoxic-ischemic encephalopathy (HIE) requiring therapeutic hypothermia, refractory seizures. |
| Cardiovascular | Suspected congenital heart disease, arrhythmias, or unresponsive shock. |
| Surgical Emergencies | Major congenital malformations, necrotizing enterocolitis, or intestinal obstruction. |
| Metabolic/Others | Severe hyperbilirubinemia needing exchange transfusion, refractory hypoglycemia, or inborn errors of metabolism. |
Organization Of Transport Services
The Transport Team
- Transport teams should ideally consist of trained personnel such as neonatal nurses, respiratory therapists, and physicians.
- Unit-based teams: Staffed by nurses and doctors working in the NICU who are deployed when a transport request arises.
- Dedicated teams: Staffed entirely separately from the NICU specifically for transport coverage.
Mode Of Transportation
- Ground ambulance: The most common modality. It offers a larger workspace, the ability to carry multiple team members, and the option to pull over for critical interventions.
- Rotor-wing (Helicopter): Suitable for rapid, hospital-to-hospital transport over moderate distances.
- Fixed-wing (Airplane): Best suited for long-distance transport, requiring ground ambulances at both ends of the flight.
Essential Equipment And Medications
- The team must carry all required equipment and medications in pre-packed bags with strict checklists.
| Category | Equipment And Supplies |
|---|---|
| Incubation & Monitoring | Transport incubator with ventilator, pulse oximeter, temperature probes, and electrocardiogram leads. |
| Airway & Breathing | Oxygen cylinders, blender, T-piece resuscitator, self-inflating bags, laryngoscopes, endotracheal tubes, and suction machine. |
| Vascular Access & Fluids | Intravenous cannulas, umbilical vein catheters, infusion pumps, normal saline, 10% dextrose. |
| Essential Medications | Epinephrine, inotropes (dopamine/dobutamine), phenobarbitone, antibiotics, surfactant, and Prostaglandin E1. |
Pre-Transport Stabilization (TOPS Approach)
- The transport team must stabilize the baby before undertaking the risky journey.
- Severity scoring systems like the Transport Risk Index of Physiologic Stability (TRIPS) can predict the occurrence of critical illness.
- Stabilization focuses on the "TOPS" mnemonic: Temperature, Oxygenation, Perfusion, and Sugar.
Temperature
- Ensure a neutral thermal environment.
- Use a transport incubator, plastic wraps for extremely premature babies, or skin-to-skin contact (Kangaroo Mother Care) for stable babies.
- Servo-controlled active cooling should be initiated and maintained for infants meeting the criteria for therapeutic hypothermia.
Oxygenation And Airway
- Ensure airway patency and secure the endotracheal tube properly, as dislodgement is common during movement.
- Provide adequate oxygenation and ventilation, using CPAP or mechanical ventilation as indicated.
Perfusion And Circulation
- Establish stable vascular access, preferably through an umbilical venous catheter or a secure peripheral line.
- Treat shock with normal saline boluses (10 ml/kg) and initiate vasoactive infusions if required.
Sugar And Metabolic
- Ensure adequate blood glucose concentrations.
- Correct hypoglycemia before transport and maintain an ongoing intravenous dextrose infusion.
Specific Clinical Conditions During Transport
Respiratory Distress Syndrome (RDS)
- If a preterm infant requires intubation for mechanical ventilation, exogenous surfactant should be administered before transport.
- Anticipate rapid changes in lung compliance post-surfactant and adjust ventilatory support to minimize the risk of pneumothorax.
Hypoxic Respiratory Failure And PPHN
- Ensure optimal lung recruitment but strictly avoid hyperventilation.
- Transport teams should be prepared to institute inhaled nitric oxide if available.
Congenital Heart Disease
- For infants with suspected ductal-dependent lesions, initiate a Prostaglandin E1 (PGE1) infusion prior to transport.
- Because PGE1 can cause apnea, the threshold for elective intubation before transport should be low.
Surgical Conditions
- An orogastric tube must be placed and kept on continuous drainage.
- This is critical for intestinal obstruction or congenital diaphragmatic hernia, especially during air transport.
Physiologic Considerations Of Air Transport
- Alveolar hypoxia (Dalton's law): As altitude increases, barometric pressure decreases, causing a fall in alveolar oxygen tension. The fraction of inspired oxygen (FiO2) must be increased to maintain saturation.
- Gas expansion (Boyle's law): As barometric pressure drops, trapped gases expand. This mandates the pre-flight drainage of a pneumothorax and continuous venting of the stomach.
Communication, Counseling, And Documentation
- Hospitalization and transport precipitate a major emotional crisis for the family.
- Allow parents to see and touch their infant prior to the transfer.
- Thoroughly explain the clinical condition, the reason for transfer, and the anticipated care during transport.
- Obtain formal written consent for the transfer and any anticipated procedures.
- Document the infant's health status, interventions performed, and vital signs on a standardized hand-over checklist.
- Facilitate a four-way communication stream between the referring team, the receiving team, the transport team, and the baby's family.
- Following the transport, the team must call the referring hospital to provide feedback on the baby's arrival condition.