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Mycobacterium kansasii pericarditis as a presentation of AIDS
V Pintado1, J Fortún, J L Casado
1Dept. of Infectious Diseases, Hospital Ramón y Cajal, Madrid, Spain. vpintado@hrc.insalud.es
Abstract:
Mycobacterium kansasii infection is a recognized complication of AIDS and a broad spectrum of extrapulmonary manifestations has been reported. However, AIDS-related M. kansasii pericarditis is an extremely rare disease. We report the first European case of this infection, that presented some different clinical findings to those previously described in HIV-infected individuals. M. kansasii pericarditis was the first AIDS-defining illness presented by the patient. The stained smears of pericardial fluid were negative for acid-fast bacilli and an increased level of adenosine deaminase was observed in pericardial fluid. A short course of prednisone therapy was added to antituberculous treatment, with a good clinical response.
Insights
Mycobacterium kansasii pericarditis is a rare complication of Acquired Immunodeficiency Syndrome (AIDS). This case highlights unique clinical findings and a positive response to prednisone combined with antituberculous treatment.
Area of Science:
- Infectious Diseases
- Cardiology
- Immunology
Background:
- Mycobacterium kansasii is an opportunistic pathogen, frequently causing disseminated disease in individuals with Acquired Immunodeficiency Syndrome (AIDS).
- While extrapulmonary manifestations are common, M. kansasii pericarditis remains an exceptionally rare presentation of AIDS.
Observation:
- This report details the first European case of Mycobacterium kansasii pericarditis as an initial AIDS-defining illness.
- The patient presented with atypical clinical findings compared to previously documented cases in HIV-infected individuals.
- Pericardial fluid analysis showed negative acid-fast bacilli smears but elevated adenosine deaminase levels.
Findings:
- The diagnosis of M. kansasii pericarditis was established despite negative initial microbiological examination of pericardial fluid.
- Combined antituberculous therapy and a short course of prednisone resulted in a favorable clinical outcome.
- This case expands the understanding of clinical variability in AIDS-related M. kansasii infections.
Implications:
- Highlights the importance of considering M. kansasii pericarditis in the differential diagnosis of unexplained pericardial effusions in advanced HIV.
- Suggests that a combination of antituberculous drugs and corticosteroids may be effective in managing this rare condition.
- Emphasizes the need for further research into the diverse clinical spectrum of Mycobacterium kansasii in immunocompromised populations.