Emergency medical services

• 1. Introduction

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  Emergency medical services exist because of a simple truth: some emergencies cannot wait. The parable of the Good Samaritan in the New Testament describes a beaten man bandaged with oil and wine, placed on a donkey, and carried to an inn - a scene of improvised rescue that captures something universal about the human impulse to help. What separates that ancient act of mercy from the modern ambulance crew is roughly two centuries of hard-won innovation, military catastrophe, civic pressure, and medical science.

  Today, emergency medical services - known as EMS - arrive within minutes of a phone call, staffed by personnel who carry defibrillators, administer drugs, and transmit electrocardiograms to hospitals before the patient even arrives. But who are these people? What did it take to build the system? And why, depending on where you happen to collapse, does the kind of care you receive vary so dramatically? Those are the questions this documentary sets out to answer.

• 2. From Battlefield to Street

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  Dominique Jean Larrey, born in 1766, was Napoleon Bonaparte's chief surgeon, and he was furious. At the battle of Spires, French wounded were left lying on the field while ambulances sat idle two and a half miles behind the lines. The rules of war required the vehicles to stay back until the fighting stopped. By then, soldiers were dying from treatable wounds.

  Larrey scrapped the Norman system of horse litters and designed what he called ambulances volantes - flying ambulances. These were two- or four-wheeled horse-drawn wagons that could move onto an active battlefield, collect wounded men after early field treatment, and transport them rearward without waiting for a ceasefire. In 1794, the Committee of Public Safety approved his plans. By 1796, during Napoleon's Italian campaigns, the vehicles were in use at Udine, Padua, and Milan. Larrey even adapted the design for a campaign in Egypt, building a litter that could be carried by a camel.

  The key insight Larrey embedded into military medicine was that getting care to patients sooner - rather than simply moving patients to care - changed who survived. That idea would take decades to migrate into civilian life, but when it did, it would reshape cities.

• 3. Civilian Beginnings

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  In 1832, a transport carriage for cholera patients appeared on the streets of London, and the statement printed in The Times captured a new philosophy in plain language: the curative process commences the instant the patient is put into the carriage. Those words - written about a carriage, in a newspaper, during a cholera outbreak - articulated a principle that would shape hospital placement and emergency planning for generations.

  The first known hospital-based ambulance service in the United States operated out of Commercial Hospital in Cincinnati, Ohio, by 1865. Bellevue Hospital in New York followed in 1869, with ambulances stocked with splints, a stomach pump, morphine, and brandy - a snapshot of what contemporary medicine considered essential equipment.

  A disastrous fire at the Vienna Ringtheater in 1881 prompted Jaromir V. Mundy, Count J. N. Wilczek, and Eduard Lamezan-Salins to found what they named the Vienna Voluntary Rescue Society. That organization became a model for similar societies worldwide. In June 1887, the St John Ambulance Brigade was established in London to provide first aid and ambulance services at public events, organized along military lines of command and discipline.

  All of these early civilian services shared one limitation: they moved patients, but they did not reliably treat them in transit. The term "emergency medical service" only gained currency once these organizations shifted their emphasis toward actual treatment at the scene.

• 4. Motorization and War

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  Michael Reese Hospital in Chicago took delivery of the first automobile ambulance in February 1899, donated by five hundred prominent local businessmen. New York City followed in 1900, praising the new machine for its greater speed, patient safety, faster stopping, and smoother ride. Both of those first automobile ambulances were electrically powered, running on two-horsepower motors mounted on the rear axle.

  World War I forced another leap. Traction splints, introduced during the war, measurably reduced the death and disability rates among soldiers with leg fractures. Two-way radios became available shortly afterward, enabling radio dispatch of ambulances in some areas for the first time.

  The period before World War II was a study in stark contrasts. In some locations, a modern ambulance carried advanced medical equipment, was staffed by a physician, and was dispatched by radio. In many others, the ambulance was a hearse - chosen simply because it was the only vehicle that could carry a patient lying flat. These dual-purpose vehicles were called combination cars, and funeral homes frequently operated them.

  The war years sharpened the contrast further. Hospital ambulance programs collapsed under manpower shortages, and city governments handed services over to police or fire departments. No laws required any medical training for ambulance personnel, and in many fire departments, assignment to ambulance duty functioned as unofficial punishment.

• 5. The White Paper Turning Point

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  In the 1960s, CPR and defibrillation became the standard approach to out-of-hospital cardiac arrest. In Belfast, Northern Ireland, the first experimental mobile coronary care ambulance began successfully resuscitating patients using these technologies. Freedom House Ambulance Service became the first civilian emergency medical service in the United States staffed by paramedics - and all of those paramedics were African-American.

  A government report titled Accidental Death and Disability: The Neglected Disease of Modern Society - quickly nicknamed The White Paper - landed at the exact right moment. It concluded that ambulance services across the United States varied widely, were often unregulated, and were frequently unsatisfactory. The pressure generated by that report produced concrete standards: requirements for the internal height of the patient care area inside an ambulance, for the equipment and weight the vehicle had to carry, and for several other factors.

  In 1971, at the annual meeting of the American Association of Trauma, then-president Sawnie R. Gaston described the study as a superb white paper that jolted and wakened the entire structure of organized medicine, and called it the single greatest contribution of its kind to the improvement of emergency medical services. Dr. R Adams Cowley built on that momentum by creating the country's first statewide EMS program, in Maryland.

  Parallel changes followed elsewhere. A 1973 law in the United Kingdom merged municipal ambulance services into larger agencies under national standards. France founded its first official SAMU agencies during the 1970s. The decentralized, often chaotic world of ambulance services was being replaced, country by country, by something more deliberate.

• 6. Two Philosophies of Care

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  Every EMS system in the world ultimately answers a single question: do you bring the patient to the hospital, or do you bring the hospital to the patient? The answers have divided into two distinct models, each with deep roots in national medical culture.

  The Anglo-American model - also called load and go, or scoop and run - moves the patient to a trauma center as fast as possible. The North American approach to trauma is built around the Golden Hour theory: a victim's best chance for survival lies in an operating room, and the goal is to get them into surgery within an hour of injury. Internal bleeding, particularly from gunshot or stab wounds, makes rapid transport especially critical. Paramedics and EMTs handle stabilization but are not expected to substitute for a surgeon. The phrase the platinum ten minutes captures the target: leave the scene within ten minutes of arrival.

  The Franco-German model - stay and play, or stay and stabilize - sends physicians directly to the scene. In France, Austria, Belgium, Luxembourg, Italy, Spain, Brazil, and Chile, doctors respond to all major emergencies requiring more than basic first aid. Ambulances in this model carry more advanced equipment. High-speed transport is generally considered unnecessarily dangerous, and the preference is to stabilize patients on scene before moving them. When they do go to hospital, they typically bypass the emergency department and go straight to a ward.

  A 2010 study in the Oman Medical Journal found the evidence inconclusive as to which model produces better overall results - though rapid transport appeared better for trauma, while scene stabilization appeared better for cardiac arrest. The honest answer may be that neither model wins outright, because the right approach depends on what is wrong with the patient.

• 7. Who Responds

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  At the dispatch center, an emergency medical dispatcher - an EMD - does something that sounds simple but is genuinely consequential: they talk to panicked callers and give instructions before anyone arrives. Using structured questioning techniques and scripted guidance, they walk callers through clearing airways, controlling bleeding, managing childbirth, and performing CPR. Because some medical emergencies evolve in seconds rather than minutes, this zero response time intervention saves lives that a fast ambulance would still arrive too late to save.

  First responders - who may be community volunteers, firefighters, or police officers - are often sent ahead of the ambulance to stabilize patients. Emergency medical technicians carry defibrillators, manage spinal injuries, and administer oxygen therapy. In the United States, the National Registry of Emergency Medical Technicians organizes certification into four levels: Emergency Medical Responder, Emergency Medical Technician, Advanced EMT, and Paramedic.

  A paramedic holds the highest licensure level for prehospital care in the United States. The scope of paramedic practice includes cannulation, cardiac monitoring, twelve-lead ECG interpretation, ultrasound, intubation, pericardiocentesis, cardioversion, thoracostomy, and surgical cricothyrotomy. In the UK and South Africa, some paramedics receive additional university training to become emergency care practitioners - autonomous clinicians who can prescribe a broad range of medications without physician oversight.

  In the Netherlands, all ambulances are staffed by a registered nurse with additional emergency training plus a driver-EMT. In Sweden, since 2005, emergency ambulances carry at least one registered nurse, since only nurses are legally permitted to administer drugs. In Estonia, nurses lead sixty percent of ambulance teams and can perform nearly all emergency procedures independently. EMS is not one profession but a spectrum of professions, shaped by whatever each country has decided a pre-hospital responder should be.

• 8. Reach, Risk, and the Road Ahead

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  Air ambulances trace back to 1917, when a soldier in the Camel Corps who had been shot in the ankle was flown to hospital in a de Havilland DH9 in Turkey. In 1928, Australia founded the first civilian air medical service to reach people in the remote Outback; it became the Royal Flying Doctor Service. During the Korean War, helicopter transport cut evacuation time from eight hours in World War II to three hours. By the Vietnam War, that time had dropped to two hours.

  In the United States, the highest risks facing EMS workers are not the dramatic ones. Ground and air ambulance crashes are the single most lethal occupational hazard, though crashes account for less than eight percent of injuries. The most common injuries are sprains and strains - forty-one percent of cases - and harmful exposures at twenty percent, according to the National Institute for Occupational Safety and Health. Most states have established critical incident stress debriefing programs for workers after particularly traumatic calls.

  Telemedicine is changing what arrives at the hospital door before the ambulance does. Paramedics can now transmit twelve and fifteen lead ECGs to emergency departments from the field, allowing receiving teams to prepare before the patient arrives. In the Ottawa region, a STEMI program - targeting heart attacks caused by blocked arteries - reduced STEMI deaths by fifty percent by having paramedics identify eligible patients in the field and route them directly to PCI labs, bypassing emergency rooms. That kind of direct routing has since been tested in Toronto as well, where EMS began moving STEMI patients out of hospitals without PCI capability and transporting them, on an emergency basis, to waiting labs elsewhere.