The effects of repeated thermal therapy for two patients with chronic fatigue syndrome.
Masuda, Akinori, Kihara, Takashi, Fukudome, Tsuyoshi et al. · Journal of psychosomatic research · 2005 · DOI
Quick Summary
This study followed two ME/CFS patients who tried a type of heat therapy called far-infrared sauna (heated to 60°C) combined with warming afterward. After about 15-25 sessions, both patients reported major improvements in fatigue, pain, sleep problems, and fever. They continued the therapy once or twice a week for a year and did not get worse, even after stopping their previous medication.
Why It Matters
Heat therapy is a non-pharmacological intervention that could offer ME/CFS patients a potentially beneficial treatment option with fewer side effects than medications. This preliminary evidence suggests thermal therapy warrants larger, controlled trials to determine if it could be a viable therapeutic approach for symptom management.
Observed Findings
Symptoms of fatigue, pain, sleep disturbance, and low-grade fever showed dramatic improvement after 15-25 sessions of daily far-infrared sauna therapy
Both patients maintained clinical improvement during one year of outpatient follow-up (1-2 sessions per week) after completing 35 inpatient sessions
No relapse or exacerbation occurred after discontinuation of prednisolone treatment
Social rehabilitation was achieved by 6 months post-discharge
Inferred Conclusions
Repeated thermal therapy may be a promising non-pharmacological treatment for some CFS patients unresponsive to conventional medications
Therapeutic benefits appear sustained with maintenance therapy at reduced frequency
Thermal therapy warrants further investigation as a potential CFS intervention
Remaining Questions
How do the results from these two patients compare to natural disease progression or placebo response in a larger, controlled trial?
What is the optimal frequency, temperature, duration, and total number of sessions needed for therapeutic benefit?
What are the mechanisms by which thermal therapy improves CFS symptoms, and which patient subgroups are most likely to respond?
What This Study Does Not Prove
This case study does not prove thermal therapy causes improvement in ME/CFS, as only two patients were treated without a control group or blinding. The improvement could be attributable to placebo effect, natural disease variation, discontinuation of an ineffective medication, or other unmeasured factors. Results from two patients cannot be generalized to the broader ME/CFS population.