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  • Title: [Mycobacterium tuberculosis infection following organ transplantation].
    Author: Haas C, Le Jeunne C.
    Journal: Bull Acad Natl Med; 2006 Nov; 190(8):1711-21; discussion 1721. PubMed ID: 17650754.
    Abstract:
    In transplant recipients, immunosuppressive treatment affects cell-mediated immunity and increases the risk of tuberculosis. Tuberculosis may be transmitted by the donor organ or occur de novo, but such cases are rare. The vast majority of cases of active tuberculosis in transplant recipients result from reactivation of latent Mycobacterium tuberculosis infection. The incidence varies from one region of the globe to another, from 0.5-1.0% in North America, to 0.36-5.5% in Europe and 7.0-11.8% in India. The incidence of tuberculosis among transplant recipients is much higher than in the general population. Diabetes mellitus, renal impairment, systemic lupus erythematosus, chronic liver disease and AIDS all increase the risk of post-transplant tuberculosis. Extrapulmonary and disseminated forms are frequent in this setting. The diagnosis of tuberculosis in transplant recipients is often difficult, and treatment is frequently delayed. Tuberculosis can be life-threatening in such cases. Treatment is difficult because rifampicin is a cytochrome P450 inducer (leading to reduced levels of cyclosporine), and because the hepatotoxicity of isoniazid, rifampin and pyrazinamide is frequently increased in transplant recipients. Treatment of latent tuberculosis before transplantation markedly reduces the risk of developing active tuberculosis after transplantation.
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