Geeks, Packagers, Pitchmen, EMS and You! Part I of a five part series

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Part I – Introduction

The Paramedic program in the U.S. was based on a simple concept: Ambulances that brought the patient to the hospital would now bring the hospital to the patient.

Have you considered what a tremendous switch in orientation this was? In this series you’ll be surprised at many of the components and personalities that came together to make it all happen.

In 1965 all ambulance “Attendants” were allowed to do was basic stabilization and transportation to a facility (supposedly!) equipped and staffed to do something that would make a difference. Typically, training was a less than ten hour Red Cross (ANRC) First Aid course.

By 1970 the ambulance could do more than offer conveyance from the scene to the beginning of definitive care; it could deliver technology and trained technicians to a stricken person and definitive care could begin as close to the time of the debilitating event as possible. In retrospect, about five years for that magnitude of a transition to take place seems lightning fast!

Underneath it were more than 30 years of hard-won, behind-the-scenes technological developments. Many things had to come together to show there were huge benefits to leaving the old and adopting the new. Additionally, professional, public and political perception had to radically change before anything could happen.

What better place to start getting people’s attention than raising the dead?

Enter the external cardiac defibrillator. It made you what you are, and, in fact, in its most recent incarnation as the AED, this machine is re-defining your future!

I’m not forgetting that information gathered from the battlefields of the Viet Nam war showed that in trauma the more quickly you began aggressive intervention the better the chances were for recovery. That was an important factor in developing the concept of advanced care in the streets.

Nor am I forgetting that CPR played a pivotal role in pre-hospital care as well; after all, it provided an essential link in the chain to combat sudden death. It allowed a “dead” body to remain viable until more advanced care could be provided…and anybody could do it!But it was quite a journey to get CPR out into the public’s view.

Paradoxically, it was advanced technology that made the use of basic intervention worthwhile.

Of course, the concept of a non-Physician rendering care on the scene would never have happened without leaps in our communication technology. Once that occurred it allowed wireless connection between a trained technician and a doctor at the hospital, eliminating the need for the physical presence of the MD on the scene.

Yet, review of the literature indicates that defibrillation may very well have been the hub of the wheel when it comes to the sudden emergence of advanced emergency medical care in the streets. It provided a highly dramatic, immediate result; one that attracted attention to the overall idea of sending ambulances to actually treat medical emergencies. It provided a reason to develop all the other spokes of the wheel.

In terms of publicity, what fueled the spread of the idea of on-scene intervention was that more than 300,000 people a year in the U.S. were keeling over and becoming victims of “sudden death”. Once there was something available to combat it (instantly!) this information became more newsworthy and it became the rallying cry for a radically new way of doing things.

CPR, or medications on their own, however, would probably not have justified this huge shift in orientation; they were far too simple! As preparatory and back-up steps to something technical that literally had to be delivered to the scene, however, they became essential. Remember also that the primary reason for communications with the Doctor was so that he/she could interpret the rhythm and order the treatments.

In the TV show EMERGENCY!, for example, the sequences that got the most public attention were the ones where Johnny and Roy arrived on the scene of a pulseless and apneic patient, hooked him/her up to a monitor, sent a rhythm strip to the Doc, he orders defibrillation, they did it and there on the screen is a beautifully beating heart’s rhythm! What’s the logical response? I want THAT in MY neighborhood!

Here was a brand new development in medicine, everyone thought, that could truly raise the dead!

The truth is, back as early as 1933 we knew that sudden death from a fibrillating heart – one of the most common fatal arrhythmias – could be reversed by electric shock. In cardiac defibrillation we had something that could make an immediate, seemingly miraculous difference; but all that was behind the scenes and limited to one pioneering hospital program. The equipment to defibrillate was quite massive and unsophisticated in design.

But it did provide a reason for the birth of CPR. CPR evolved as “external cardiac compression” from its more gruesome forebear where the chest was cracked open and the heart was rhythmically squeezed and released by hand.

In cases of fibrillation, open cardiac massage was performed until an electrical “shock” could be administered directly to the heart tissue. The administration of drugs was likely to occur as well, yet, compressions along with aeration were all part of an experiment that largely centered on defibrillation.

The development of “closed-chest massage” happened during the time defibrillation was being improved. Initially this took place in (predominantly) Operating Rooms.

Until the defibrillator became portable enough to bring to the stricken person there was little reason to push for mass training of hospital or other personnel in CPR. People just dropped dead in the hospitals (except for some scattered ORs) and on the streets and there were no thoughts of interceding to maintain circulation. Why and for what? Remember, this was at the time when we were just beginning to apply heavy-duty pharmaceutical intervention, and that was limited to the more advanced areas of the hospitals.

Even in the hospitals CPR was developed to buy crucial time until the patient had access to a Crash Cart of some configuration, the central ingredient of which was the external defibrillator. Granted, a fibrillating heart was only one of many arrhythmias, but this was fatal and it could be reversed. How more dramatic could you get? And just imagine if you could bring that kind of intervention to the patient in the streets!

Yet, it took a tremendous amount of effort to get the medical establishment at the time to even consider declaring war on sudden death. As you will soon see, it took quite a cast of characters to change that direction and in the beginning, most weren’t MDs.

It all started with Consolidated Edison of New York, back in 1928!

At the time, there were an alarming number of deaths of electrical linemen while servicing our rapidly expanding electrical needs. “Accidental electrocution” was a common hazard of the job. The Edison Company established the Edison Electrical Institute to see if there was a way to reverse the effects of sudden, fatal electrical shock on its personnel.

The institute contracted with Johns Hopkins University to study the problem. In charge of the project was an electrical engineer.

Coming next: Your Grandfather, the Geek!
 
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firetender

firetender

Community Leader Emeritus
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Part Two of the 5-part series; Geeks, Packagers, Pitchmen, EMS and You!

Your Grandfather the Geek

Russ Reina

Let’s define “Geek” reverently as someone not quite like the rest of us; someone who has a vision of the world, through technology, that we, the regular (and even highly-trained) folk don’t come close to seeing. Think Bill Gates or Steve Jobs, Steven Spielberg or George Lucas for that matter. They took technology, applied it to information, and came up with a whole new world for us. They were Uber-Geeks.

But consider what it took to first envision technology as a vehicle to raise the dead!

Back in 1928, what we knew about electricity and the human body was that the former could kill the latter. It would be three years before the movie Frankenstein would come out so it’s fair to say that re-animation of the dead back to life by the application of electricity was not exactly part of mainstream thinking!

In the very beginning, Consolidated Edison of N.Y. wanted to know why their linemen were getting killed while on-duty. This was happening from electrical discharges of all amplitudes, some quite small. But, the idea of bringing them back through applying the same force that killed them? That was something that, at the time, even the Maddest Doctor wasn’t considering.

First, you had to understand electricity.


Enter William B. Kouwenhoven, an Electrical Engineer who was described as a “pipe-smoking, contemplative” known for “his creative mind”. He was put in charge of a multi-disciplinary study of electricity’s effects on the human body based at Johns Hopkins University and sponsored by Edison. There was a physician on the roster as official “Head” but for all intents and purposes, it was Kouwenhoven’s baby.

What came of it was that human beings under his direction engineered a machine that when properly applied could revive an ineffectual heart. Remember, he was commissioned to head a study, not to raise the dead!

Today, William Kouwenhoven is called the “Grandfather of Bio-medical Engineering” and I have no doubt in saying that were it not for his accomplishments it would have taken at least a decade longer for EMS as we have known it to take shape. The defibrillator is what made all the other machines (monitor, radio, etc.) necessary, and all the drugs useful.

Speaking from experience, in the beginning of the paramedic program (mid-1970s) most of what we were trained to do centered on counteracting a fibrillating heart. In fact, the number bandied about was that each year we were losing 350,000 people to sudden pre-hospital death. That was the essential impetus for the paramedic program; no more needless deaths!

I suspect that there was a greater sense of urgency back then because the majority of the emergencies we responded to were truly acute. More people were keeling over in the streets at that time, whereas today our highly medicated population is kept from that public tipping-point! As a result, there was a sudden, nationwide clamoring for paramedic systems to become available. Times were flush with money and funding became widespread.

Complete paramedic systems were springing up seemingly overnight. And it wasn’t only about us paramedics in the field and our equipment; it was the whole hospital system that was rocked by the innovations that Kouwenhoven brought to life!

Once a defibrillator was put on your ambulance you had to have a monitor, radio, and drugs to deal with whatever rhythms came up after conversion, along with a full respiratory kit to bring to the scene as well. But it didn’t stop there. The emergency rooms had to become equipped to receive your patient and there had to be an Intensive Care Unit to go to from there. EVERYTHING changed! What made us real, as paramedics, was that defibrillator.

You can say this all started in 1933 when Kouwenhoven and his team discovered that an electrical “counter-shock”, delivered through an “open-chest” procedure could reanimate a heart that had been stopped by a jolt of electricity. Technically, it had first been noted in an almost forgotten paper written in the 1890’s.

That began a literally, lifelong pursuit of both developing an “external-cardiac defibrillator” and CPR. “External” is a very important word because without having to open the chest to gain direct access to heart muscle you had a slight advantage in time before the heart muscle died. Even at that, the advantage was only a matter of minutes. It was CPR that bought the extra time needed to allow defibrillation to become a practical intervention. The two were intertwined.

Kouwenhoven can claim credit for refining “closed-chest cardiac massage” which was employed to keep a heart viable until shock could be applied. Together, with other Techies and MDs, including Drs. Elam and Safir who perfected rescue breathing, he developed CPR as practiced until recently.

For the most part, the world knew little of the work he had been doing since 1928 until he published a paper in JAMA in 1960 when he was 74 years old!

That paper described what happened when one of his Electrical Engineering graduate students, Guy Knickerbocker, pressed hard on the defibrillator paddles while experimenting on the closed-chest of a dog prior to discharging the electrical jolt that would re-animate its fibrillating heart; the dog’s blood pressure rose! This described the advent of CPR.

(Once they figured out rats and other, smaller animals didn’t fare so well in the experiments, they started using dogs as subjects. Not only were they perfect specimens to work on before trying defibrillation out on humans, but as we’ll see in a later installment, dogs also ended up being effective “salesmen” when it came time to convince the medical community to begin using closed-chest defibrillation!)

The trick was to find out the proper combination of currents, pulses, electrodes, timing and electrical intensity to “snap” the heart back to life. That all had to be put into a free-standing machine that could “deliver” the life-saving jolt at the right time. It was William Kouwenhoven who breathed life into the nuts and bolts and modulators and tubes that made up that machine.

Experimentation on this began in 1950 and it wasn’t until 1957 that a human life (in a controlled environment) was saved by the application of such a machine. It weighed over 200 lbs. and was carried into the operating room of Johns Hopkins on wheels!

Around 1960, a doctor wheeled a similar machine to someone who was suddenly stricken. He had to “appropriate” the machine from its storage space in the Hopkins lab where it was being experimented with,and drag it to a patient who had collapsed in the emergency room!

This was the first successful on-scene emergency cardiac defibrillation and resuscitation.

In 1969, William Kouwenhoven, the Engineer who made this possible, was the first person in history to be granted an Honorary Doctor of Medicine from Johns Hopkins University. It was for his contributions to Cardiology that he was so honored. He died in 1975.

Next Installment: Size DOES Matter!

References:
http://circ.ahajournals.org/content/114/25/2839.full.pdf+html
http://www.ieeeghn.org/wiki/index.php/William_B._Kouwenhoven
http://www.medicalarchives.jhmi.edu/sgml/kouwnhvn.html
http://webapps.jhu.edu/namedprofessorships/professorshipdetail.cfm?professorshipID=91
http://esgweb1.nts.jhu.edu/hmn/W98/engr.html
http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=05308217
http://circ.ahajournals.org/content/114/25/2839.full.pdf+html
http://www.senatormoore.com/news/archive/2010/06/AHA_Cardiac_Arrest.pdf
 
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