La Revue de medecine interne · 2021
Invasive aspergillosis and endocarditis.
Клинический случайСтатьяНазвание и аннотация: Перевод в очереди
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Chevalier K, Barde F, Benhamida S, Le Meur M, Thyrault M, Bentoumi Y, Lau N, Lebut J
Аннотация
INTRODUCTION: Aspergillusfumigatus can cause a systemic infection called invasive aspergillosis causing pulmonary and extra-pulmonary damage. Aspergillus endocarditis (AE) is a relatively rare disease but can be life-threatening.
CASE REPORTS: We report here on five cases of endocarditis due to invasive aspergillosis: a 58-year-old man receiving immunosuppressive medication following a kidney graft, a 58-year-old man undergoing chemotherapy for chronic lymphocytic leukaemia, a 55-year-old man receiving corticosteroids for IgA vasculitis, a 52-year-old HIV-infected woman under no specific treatment and a 17-year-old boy under immunosuppressive therapy for auto-immune chronic neutropenia.
DISCUSSION: Aspergillus accounts for 25-30% of fungal endocarditis and 0.25% to 8.5% of all cases of infectious endocarditis. Aspergillus endocarditis results from invasion of the lung arterioles by hyphae and blood dissemination. It is associated with a very high mortality rate (42-68%). Diagnosing Aspergillus endocarditis is mainly problematic because blood cultures are almost always negative, and fever may be absent. Immunosuppression, haematological malignancies, recent cardiothoracic surgery, negative blood cultures with endocarditis and/or systemic or pulmonary emboli are predictors of AE. In the setting of endocarditis, some clinical characteristics may raise early suspicions of aspergillosis rather than a non-fungal agent: no fever, vegetations affecting the mitral valve, non-valve or aortotomy sites, aortic abscess or pseudo-aneurysm. The identification of invasive aspergillosis is based on a chest CT scan, microscopy/culture or other serological and molecular tests. The treatment of Aspergillus endocarditis requires triazole antifungal drugs, and frequently additional surgical debridement.
CONCLUSION: Aspergillus endocarditis is rare but is associated with a very high mortality rate. Knowledge of its predictive factors and key clinical features can help to differentiate aspergillosis from non-fungal endocarditis and may enable improved survival rates.
CASE REPORTS: We report here on five cases of endocarditis due to invasive aspergillosis: a 58-year-old man receiving immunosuppressive medication following a kidney graft, a 58-year-old man undergoing chemotherapy for chronic lymphocytic leukaemia, a 55-year-old man receiving corticosteroids for IgA vasculitis, a 52-year-old HIV-infected woman under no specific treatment and a 17-year-old boy under immunosuppressive therapy for auto-immune chronic neutropenia.
DISCUSSION: Aspergillus accounts for 25-30% of fungal endocarditis and 0.25% to 8.5% of all cases of infectious endocarditis. Aspergillus endocarditis results from invasion of the lung arterioles by hyphae and blood dissemination. It is associated with a very high mortality rate (42-68%). Diagnosing Aspergillus endocarditis is mainly problematic because blood cultures are almost always negative, and fever may be absent. Immunosuppression, haematological malignancies, recent cardiothoracic surgery, negative blood cultures with endocarditis and/or systemic or pulmonary emboli are predictors of AE. In the setting of endocarditis, some clinical characteristics may raise early suspicions of aspergillosis rather than a non-fungal agent: no fever, vegetations affecting the mitral valve, non-valve or aortotomy sites, aortic abscess or pseudo-aneurysm. The identification of invasive aspergillosis is based on a chest CT scan, microscopy/culture or other serological and molecular tests. The treatment of Aspergillus endocarditis requires triazole antifungal drugs, and frequently additional surgical debridement.
CONCLUSION: Aspergillus endocarditis is rare but is associated with a very high mortality rate. Knowledge of its predictive factors and key clinical features can help to differentiate aspergillosis from non-fungal endocarditis and may enable improved survival rates.