EM · ED systems, safety and professional
Retrieval and inter-hospital transfer
Also known as Inter-hospital transfer · Secondary retrieval · Aeromedical retrieval · Patient transport · Drip-and-ship · Time-critical transfer · Specialist retrieval
Retrieval and inter-hospital transfer is the structured process of moving a patient between facilities (or from scene to facility) to deliver a level or type of care the referring site cannot provide. The decision rests on three transfer types — time-critical (STEMI door-to-balloon, stroke thrombolysis and thrombectomy windows), specialist (trauma, burns, neurosurgery, paediatric, neonatal, ECMO), and repatriation — each with its own urgency, mode, and team. Pre-transfer packaging converts an unsafe move into a safe one: secure the airway (RSI before transfer for the patient with GCS 8 or less), secure the lines (two large-bore IVs, an arterial line, central access for the unstable), secure the monitors (ECG, SpO2, NIBP, capnography), secure the ventilation (mechanical ventilator with set parameters), and secure the sedation (opioid–benzodiazepine analgesia-sedation, titrated to ventilator tolerance). Mode — road, fixed-wing, or rotary — is chosen on distance, physiology, weather, and the time-versus-stability trade-off. Team composition (physician-staffed versus paramedic/nurse) is matched to the predicted deterioration risk. The governing differential is the decision itself: stay-and-play (resuscitate to stability first) versus scoop-and-run (load and go, manage on the move), with the time-critical bypass (direct to PCI, to thrombolysis, to a trauma centre) as the third path. Transport-related deterioration — hypoxia, hypotension, hypothermia, gas expansion at altitude, line and tube loss, undetected desaturation — is the central risk, and the discipline is to minimise it by preparation, not improvisation. ACEM-primary, globally tagged.
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- Patient disposition and safety-netting in the emergency department
- Clinical handover and the ISBAR framework in the emergency department
- Trauma team leadership
- Team-based care and crisis resource management in the emergency department
- Acute coronary syndromes (STEMI, NSTEMI and unstable angina)
- Acute ischaemic stroke
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- Time-critical transfer is not a packaging decision — it is a routing decision; a STEMI bound for primary PCI, an ischaemic stroke within the thrombectomy window, and major trauma all bypass the nearest facility for the definitive centre, and the clock starts at first medical contact, not at departure
- An undrained pneumothorax in a pressurised aircraft is a tension pneumothorax waiting to happen — gas volume expands by up to about a third at cabin altitude, and every intubated patient must have a chest drain before flight if any pneumothorax is present or suspected
- An unsecured endotracheal tube cuff pressure in flight will either leak (under-pressurised, worsened by altitude gas expansion) or cause tracheal ischaemia (over-pressurised) — cuff pressure is set and re-checked before take-off and at altitude
- A patient transferred without an arterial line and capnography is a patient whose deterioration will be detected late — the noise, vibration, and restricted access of a moving vehicle strip away the clinical signs relied on at the bedside
- Scoop-and-run without packaging kills — the patient who is loaded and moved with an unsecured airway, an undrained pneumothorax, or uncontrolled catastrophic haemorrhage arrives at the receiving centre worse than they left
Meet the patient
A 34-year-old is thrown from a car at speed and lands in a regional ED with a GCS of 7 and a left pupil fixed and dilated. The CT shows a large left extradural haematoma with midline shift. The neurosurgical centre is 320 km away and a physician-staffed fixed-wing team has been tasked. The two questions that decide whether he reaches theatre with a salvageable brain are the two that decide every retrieval: is the airway, the lines, and any pneumothorax secured before the wheels move — and does anyone remember that the gas in his endotracheal tube cuff, and any occult pneumothorax, will expand by up to about a third at cabin altitude?[2][7]
Retrieval looks like a logistical problem and is examined as a clinical one. It is the structured movement of a patient from a site that cannot deliver definitive care to one that can — primary (scene to first hospital) or secondary (inter-hospital). The Fellowship exam is about secondary retrieval, because that is decision emergency medicine consultant owns, and it sorts into three urgencies: time-critical (minutes matter), specialist (hours matter), and repatriation (days matter).[2]
References16ShowHide
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