[Pericardial tuberculosis complicated with heart tamponade as presentation form of acquired immunodeficiency syndrome].

Background: Pericardial tuberculosis is an unusual presentation form of extrapulmonary tuberculosis, even in HIV-1 infected patients. When complicated with cardiac tamponade the prognosis worsens; therefore, early diagnosis and therapy are essential.

Methods: A cross-sectional and descriptive study was carried out of cases with documented diagnosis of tuberculous pericarditis in a cohort of prisoner patients with tuberculosis in the Comunidad Autónoma de Madrid, during a 4-year period (March 1991-March 1995).

[Tricuspid endocarditis caused by penicillin-resistant Staphylococcus aureus: 2 cases in parenteral drug addicts].

Background: Staphylococcus aureus is the main causal agent of infectious endocarditis (IE) in intravenous drug addicts (IVDA) with most of the strains, isolated in Spain being resistant to penicillin and sensitive to methycillin, although the latter condition varied in recent years. Two cases of IE caused by S. aureus strains sensitive to penicillin in IVDA are presented.