You sometimes hear fibromyalgia referred to as a “fad diagnosis” or “new disease,” but the truth is that fibromyalgia is far from new. It has centuries of history, with multiple name changes and discarded theories along the way.
While it hasn’t always been accepted by the medical community, and today its acceptance isn’t universal, fibromyalgia has come a long way and current research continues to offer proof that it’s a very real physiological illness.
The most often cited historical account of fibromyalgia comes from a 2004 paper by researchers Fatma Inanici and Muhammad B. Yunus. This history was compiled from their work as well as new information from the past decade.
Back to the Beginning – 1592-1900
Early on, doctors didn’t have separate definitions for all the pain conditions we recognize today. Descriptions and terminology started out broad and gradually were narrowed down.
In 1592, French physician Guillaume de Baillou introduced the term “rheumatism ” to describe musculoskeletal pain that didn’t originate from injury. This was a broad term that would have included fibromyalgia as well as arthritis and many other illnesses. Eventually, doctors began to use “muscular rheumatism” for painful conditions that, like fibromyalgia, didn’t cause deformity.
Two hundred years later, definitions still were rather vague.
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However, in 1815, Scottish surgeon William Balfour noted nodules on connective tissues and theorized that inflammation could be behind both the nodules and pain. He was also the first to describe tender points (which would later be used to diagnose fibromyalgia.)
In 1880, American neurologist George William Beard coined the terms neurasthenia and myasthenia to describe widespread pain along with fatigue and psychological disturbance. He believed the condition was caused by stress. The creation of more specific terminology really exploded in the early 20th century. Different names for fibromyalgia-like illness included:
- Spontaneous pain,
- Sensitivity to pressure,
- Sleep disturbances,
- Sensitivity to cold,
- Aggravation of symptoms by muscle over-use.
As a treatment, he suggested cocaine injections, as cocaine was then used medicinally as a topical anesthetic.
Medically, “fibro” means connective tissue and “itis” means inflammation. Soon after Gowers put forth the name, another researcher published a study seeming to confirm many of Gowers’ theories about the mechanisms of inflammation in the condition. This helped cement the term fibrositis in the vernacular. Ironically, this other research was later found to be faulty.
In the 1930s, interest heightened in muscle pain referred from tender/trigger points, and charts of these patterns began to appear. Local injections of anesthetic continued to be a suggested treatment.
Fibrositis wasn’t a rare diagnosis back then. A 1936 paper stated the fibrositis was the most common form of severe chronic rheumatism. It also said that, in Britain, it accounted for 60 percent of insurance cases for rheumatic disease.
Also in that era, the concept of referred muscle pain was proven via research. A study on pain pathways mentioned deep pain and hyperalgesia (a heightened pain response) and may have been the first to suggest that the central nervous system was involved in the condition.
Additionally, a paper on trigger points and referred pain put forth the term “myofascial pain syndromes” for localized pain.
Researchers suggested that the widespread pain of fibrositis may come from one person having multiple cases of myofascial pain syndrome.
World War II brought a renewed focus when doctors realized that soldiers were especially likely to have fibrositis. Because they didn’t show signs of inflammation or physical degeneration, and symptoms appeared linked to stress and depression, researchers labeled it “psychogenic rheumatism.” A 1937 study suggested that fibrositis was a “chronic psychoneurotic state.” Thus, the ongoing debate between physical and psychological was born.
Fibrositis continued to gain acceptance, even though doctors couldn’t agree on exactly what it was. In 1949, a chapter on the condition appeared in a well-regarded rheumatology textbook called Arthritis and Allied Conditions. It read, here can no longer be any doubt concerning the existence of such a condition.” It mentioned several possible causes, including:
Still, descriptions were vague mish-mashes that we now recognize as including several very different types of pain conditions. They generally involved fatigue, headaches, and psychological distress, but poor sleep wasn’t mentioned.
The first description of fibrositis that resembles what we recognize today as fibromyalgia came in 1968. Researcher Eugene F. Traut’s paper mentioned:
- Female predominance,
- Generalized aching and stiffness,
- Poor sleep,
- Being “worry worts,”
- Tender points discovered by physical exam,
- An important mind-body connection.
Along with generalized pain, he recognized certain regional ones that appeared to be common, including what we now know as carpal tunnel syndrome. He mentioned “various levels of the spinal axis,” which you may recognize from modern diagnostic criteria: pain in the axial skeleton (bones of the head, throat, chest, and spine) and in all four quadrants of the body.
Four years later, though, researcher Hugh A. Smythe penned a textbook chapter on fibrositis that had a far-reaching influence on future studies and lead to his being called the “grandfather of modern fibromyalgia.” He’s believed to be the first to describe it exclusively as a widespread condition, thus distinguishing it from myofascial pain syndrome.
Smythe not only included poor sleep in the description but described what sleep was like for patients and also provided unpublished electroencephalogram (sleep study)findings that showed dysfunction in stage-3 and stage-4 sleep. Further, he stated that non-restorative sleep, trauma, and emotional distress all could lead to heightened symptoms.
Subsequent research confirmed sleep abnormalities as well as showed that sleep deprivation can lead to fibromyalgia-like symptoms in healthy people.
Smythe then was involved in a study that better defined tender points and suggested their use in diagnosis. It also listed chronic pain, disturbed sleep, morning stiffness, and fatigue as symptoms that could help diagnose the condition.
While researchers had made some good progress, they still hadn’t uncovered evidence of inflammation – the “itis” in fibrositis. The name was then changed to fibromyalgia: “fibro” meaning connective tissues, “my” meaning muscle, and “algia” meaning pain.
Still, a lot of questions remained. The primary symptoms were vague and common in the population. Doctors still didn’t have a handle on what fibromyalgia was.
Then, a seminal study led by Muhammed Yunus came out in 1981. It confirmed that pain, fatigue, and poor sleep were significantly more common in people with fibromyalgia than in healthy control subjects; that the number of tender points was significantly greater; and that multiple other symptoms were significantly more common as well. These additional symptoms included:
- Subjective swelling,
- Paresthesia (abnormal nerve sensations),
- Overlapping conditions such as irritable bowel syndrome (IBS), tension headaches and migraines.
This paper established enough of a consistent symptom cluster to officially denote fibromyalgia a syndrome as well as the first criteria proven to differentiate those with fibromyalgia from others.
Yunus then led research cementing the idea of several overlapping conditions, including primary dysmenorrhea (painful period) along with IBS, tension headache, and migraine.
He then believed the unifying feature was muscle spasms, but that suggestion would later give way to the theory of central sensitization.
Since this point, we’ve had a tremendous amount of research published and progress made. We still don’t have all the answers, but we’ve gained a much better understanding of what may be going on in our bodies.
Important advances include:
- 1984 – First study published linking higher fibromyalgia prevalence in those with rheumatoid arthritis;
- 1985 – First controlled study of juvenile fibromyalgia was published;
- 1986 – Drugs influencing serotonin and norepinephrine were first shown to be effective;
- 1990 – American College of Rheumatology establishes official diagnostic criteriaof widespread pain and tenderness in at least 11 of 18 specific tender points, thus standardizing research inclusion criteria around the world;
- 1991 – Fibromyalgia Impact Questionnaire developed for doctors to evaluate function;
- 1992 – Discovery of low growth-hormone levels;
- 1993 – Studies demonstrate central sensitization and HPA axis (stress regulation) abnormalities;
- 1994 – Confirmation of elevated substance P (pain messenger) in cerebrospinal fluid;
- 1995 – First U.S. prevalence study shows fibromyalgia in 2% of the population;
- 1995 – First SPECT (brain imaging) showing abnormal blood-flow patterns in the brain;
- 1999 – First study demonstrating genetic component to explain why it runs in families;
- 2000 – Review of evidence coins the term central sensitization syndromes;
- 2005 – American Pain Society releases first guidelines for treating fibromyalgia pain;
- 2007 – Lyrica (pregabalin) becomes first FDA-approved treatment in the U.S. (Cymbalta (duloxetine) and Savella (milnacipran) followed, in 2008 and 2009, respectively;)
- 2010 – American College of Rheumatology releases alternate diagnostic criteriausing questionnaires instead of tender points.
Research has continued to shore up these findings as well as suggest new possible causal factors and mechanisms. As of early 2014, some lines of inquiry include:
Inflammation of the fascia: Some research has suggested that the widespread pain of fibromyalgia may indeed be inflammatory, but in the extremely thin body-wide web of connective tissue called fascia.
Extra nerves on blood vessels: A much-publicized study shows extra temperature and pain-sensing nerves in the circulatory system.
Small-fiber neuropathy: Emerging research is showing that certain specialized nerves may be damaged.
Immune System Abnormalities: Some lines of research are showing abnormal activity in the immune system that may suggest chronic immune-system activation or autoimmunity. One study suggests an autoimmune reaction to serotonin. Another proposes a possible diagnostic test based on an immune profile.
Several researchers also are working to establish subgroups of fibromyalgia, believing that it’s the key to nailing down the underlying mechanisms and best treatments. More treatments are always under investigation, and a major goal has long been identifying and establishing objective diagnostic tools such as a blood test or scan.
Fibromyalgia still has not found universal acceptance in the medical community, but it’s closer than ever. As research continues to demonstrate that it’s both real and physiological, this condition gains credibility and those of us with it gain understanding, respect, and, most importantly, better treatment options so that we can reclaim our futures.
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