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Japanese spotted fever associated with multiorgan failure
K Kodama1, T Senba, H Yamauchi
1Department of Internal Medicine, Hyogo Prefectural Awaji Hospital, Sumoto, Hyogo 656-0013, Japan. kodama@awaji-hosp.sumoto.hyogo.jp
Summary
Severe Japanese spotted fever can be fatal. Combination therapy with minocycline and short-term steroids effectively treated a patient with multiple organ failure, improving consciousness and reducing inflammation.
Area of Science:
- Infectious Diseases
- Critical Care Medicine
- Immunology
Background:
- Japanese spotted fever is a severe rickettsial infection.
- Multiple organ failure and disseminated intravascular coagulation (DIC) are critical complications.
- Elevated soluble interleukin 2-receptor (sIL2-R) indicates severe immune activation.
Observation:
- A 49-year-old male presented with high fever, rash, and eschar, progressing to multiple organ failure, shock, and coma.
- Initial treatment included minocycline, anti-thrombin III, heparin, and hemodialysis.
- Rapid improvement in fever and consciousness occurred after a single dose of methylprednisolone.
Findings:
- The patient was diagnosed with severe Japanese spotted fever (Rickettsia japonica).
- Markedly elevated sIL2-R levels suggested hypercytokinemia and lymphocyte activation.
- Combination therapy with minocycline and short-term corticosteroids was crucial for recovery.
Implications:
- Early recognition and aggressive treatment are vital for severe rickettsial infections.
- Combination therapy may be more effective than minocycline alone in critical cases.
- Short-term corticosteroid use can mitigate hyperinflammation in severe spotted fever.