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Eosinophilia-myalgia syndrome: the aftermath
1Department of Medicine, University of California San Francisco.
Southern Medical Journal
|September 1, 1992
Summary
Long-term follow-up of L-tryptophan-induced eosinophilia-myalgia syndrome (EMS) reveals persistent symptoms in most patients. Eosinophilia-myalgia syndrome often becomes a chronic condition, impacting quality of life long after initial diagnosis.
Area of Science:
- Clinical Medicine
- Toxicology
- Rheumatology
Background:
- Eosinophilia-myalgia syndrome (EMS) is a serious condition linked to L-tryptophan supplementation.
- Understanding the long-term health consequences of EMS is crucial for patient management.
Purpose of the Study:
- To investigate the long-term sequelae in patients diagnosed with L-tryptophan-induced EMS.
- To assess the persistence and nature of symptoms following EMS diagnosis.
Main Methods:
- A cohort of 22 patients with L-tryptophan-induced EMS was followed.
- Mean follow-up duration was 23 months (range: 5-40 months).
- Clinical outcomes and persistent symptoms were systematically recorded.
Main Results:
- While acute symptoms like myalgia and rash often improved with corticosteroids, chronic issues were common.
- Persistent symptoms included fatigue, weakness, arthralgia, muscle-cramping, peripheral neuropathy, and skin thickening.
- One patient developed chronic pulmonary hypertension, highlighting potential severe complications.
Conclusions:
- L-tryptophan-induced EMS is frequently a chronic disorder with long-lasting effects.
- Many patients experience persistent symptoms impacting their daily lives and requiring ongoing management.
- The study underscores the need for continued monitoring and research into EMS pathogenesis and treatment.