Clinical Scorecard: Air Medical Transport of Patients with Spinal Disorders: A Comprehensive Review of Existing Evidence and Future Research Directions

At a Glance

Key Highlights

• Fixed-wing aircraft operate at higher altitudes than rotor-wing, exposing patients to distinct physiological stressors such as reduced partial oxygen pressure and low humidity.
• Fixed-wing transport offers smoother acceleration, lower vibration and noise, and greater medical team accessibility compared to helicopter transport.
• Prolonged transport duration in fixed-wing aircraft necessitates careful monitoring of intracranial pressure, oxygenation, and hydration status to prevent deterioration.

Guideline-Based Recommendations

Diagnosis

• Identify acute spinal pathology requiring urgent aeromedical transfer.
• Assess for combined cranial and spinal injuries due to overlapping risk factors.

Management

• Minimise prehospital time to reduce risk of irreversible nerve damage and mortality.
• Position spinal fracture patients carefully to avoid acceleration stresses.
• Manage oxygenation vigilantly to prevent hypoxia exacerbating spinal injuries.
• Mitigate dehydration and thromboembolic risk due to low cabin humidity.
• Utilise fixed-wing aircraft for long-distance or difficult terrain transfers when rotor-wing is unavailable.

Monitoring & Follow-up

• Continuous monitoring of intracranial pressure fluctuations and cerebral perfusion.
• Close observation of respiratory and circulatory function during flight.
• Monitor hydration status and secretion viscosity due to low humidity environment.

Risks

• Altitude-induced hypoxia and reduced atmospheric pressure increasing ICP and risk of pneumocephalus or gas embolism.
• Prolonged exposure to low humidity causing dehydration and thromboembolic events.
• Potential deterioration during transport requiring readiness for intervention.

Patient & Prescribing Data

Patients with acute spinal injuries undergoing fixed-wing aeromedical transport

Evidence primarily from military cohorts and case reports; limited high-level data necessitates cautious extrapolation and individualized clinical judgment.

Clinical Best Practices

• Prioritize rapid transfer to minimize prehospital time and prevent neurological deterioration.
• Use fixed-wing aircraft for long-distance transfers while accounting for altitude-related physiological effects.
• Ensure spinal stabilization and appropriate patient positioning to mitigate acceleration and vibration stresses.
• Maintain vigilant monitoring of oxygenation, ICP, and hydration throughout transport.
• Leverage increased cabin space in fixed-wing aircraft for optimal medical team access and interventions.

References

• Arksey and O’Malley Framework (2002)
• Armitage J.M. et al., 1990 Case Report