PHRM Teams in Mass Casualty Events and Mass Event Medicine

When Scale Changes Everything

When a single patient presents critically ill, injured or in cardiac arrest, the mission is clear. When dozens do, simultaneously, the system faces a different kind of test — and the gaps in that system become not just visible, but fatal. The evidence from the world's major mass casualty incidents and large-scale sporting events tells a consistent story: physician-led, interprofessional prehospital teams are not just beneficial in these settings. They are transformative.

Major Incidents: What the Evidence Shows

On 7 July 2005, four bombs detonated across London in 57 minutes, killing 56 people and injuring more than 700. London's Air Ambulance HEMS teams — physician-paramedic pairs trained in both clinical care and major incident management — were deployed to all four sites simultaneously. In the subsequent analysis published in The Lancet, over-triage rates among physician-led HEMS teams were 35 percent — against a global benchmark of 67 percent from comparable incidents, including 70 percent at the September 11 attacks in New York. Critical mortality at the London bombings was 15 percent. At the World Trade Center, with non-physician-led triage, it was 38 percent. (Aylwin et al., The Lancet, 2006.)

In Paris on 13 November 2015, coordinated attacks across multiple sites killed 130 people and injured more than 300. The French SAMU system — built on physician-led mobile medical units — deployed 45 teams simultaneously across the city, with 15 held in reserve to prevent resource concentration failure. Each team comprised a physician, nurse, and driver. Of the 302 people who reached the hospital that night, 298 survived — a hospital mortality rate of approximately 1.3 percent. They had rehearsed prehospital damage control for gunshot wounds on the morning of the attacks. (Hirsch et al., The Lancet, 2015.)

At the Manchester Arena bombing in May 2017, pre-planned physician-led triage and patient dispersal protocols distributed 138 of 153 patients to regional hospitals within six hours of the incident. At 30 days, 150 of 153 hospitalized patients were alive — a survival rate of 98 percent. (Dark et al., Emergency Medicine Journal, 2021.)

The European HEMS and Air Ambulance Committee (EHAC) has summarised the evidence directly in its major incident best practice guidance: 'Effective triage and major incident management by skilled pre-hospital physicians has been demonstrated to reduce critical mortality and over-triage rates.' (Thompson et al., Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine, 2018.) In mass casualty settings, physician-led prehospital teams do not simply add one more skilled clinician. They change the architecture of the entire response.

Mass Event Medicine: Protecting the Community

Large-scale sporting and public events create a different but related challenge: concentrations of tens of thousands of people in unfamiliar places, often in conditions that elevate medical risk. On-site physician-led medical teams have consistently been shown to absorb that risk without transferring it to already-pressured emergency departments.

At a California Speedway motorsport event, the introduction of on-site physicians reduced ambulance transports by 89 per cent — from a projected 116 to 13 actual transfers — without adverse patient outcomes. (Grange et al., Prehospital Emergency Care, 2003.)

Vancouver, the World Cup, and What It Means for BC

In June and July 2026, Vancouver will host seven FIFA World Cup matches at BC Place Stadium, with an estimated 350,000 additional visitors expected in the city during the tournament period. FIFA's medical programme requires at least one emergency physician at every match, physician-staffed Player Medical Centres, and multiple Medical Aid Stations providing spectator care. The stated objective of FIFA's Medical Director for the 2026 tournament is explicit: treat as many people on-site as possible and minimise transports to local healthcare facilities.

That objective reflects sound clinical and logistical logic. But it also places significant demands on local medical planning. BC's paramedic union noted publicly in early 2026 that detailed operational planning for the World Cup had not yet been shared with frontline staff.

First Nations Health Authority communities across BC — including those on Haida Gwaii — have implemented blackout periods for non-emergency medical travel to Vancouver during the tournament, due to FIFA-inflated accommodation costs, a direct and concrete illustration of how an event in one part of the province can compound health access inequity in another.

These pressures make the case for what MRBC is building. An interprofessional system with physician-led capability that can surge to meet demand, deploy tertiary-level critical care teams where they are needed most, and protect vulnerable communities from the knock-on consequences of healthcare system stress. The World Cup is one illustration of why that matters. The mortality data from Northern Health's communities are another. The case is consistent, across scales and contexts: high-performance prehospital teams save lives — in crises, at events, and every day in the communities that depend on them.