Tuberculosis and pericarditis in children.

With the rapid spread of tuberculosis (TB) in Zimbabwe the disease is becoming a major paediatric health problem. Children are at high risk of TB, are prone to disseminated disease and the diagnosis of paediatric TB may be difficult, since complaints often are unspecific and contacts may not been known. Data from 265 children, aged between 2 weeks and 12 years, being treated for TB in Gweru Hospital in 1995, are analysed. In 72% pericardial effusion was found as a sign of early dissemination. Cultures of gastric aspirates for Mycobacterium tuberculosis were positive in 31%. In optimal circumstances the yield for isolates of M. tuberculosis is less than 50%, and these results under limited conditions are acceptable, and may reflect the true incidence. Given the epidemiology of TB in Zimbabwe, pericardial effusions should be considered indicative of TB until proven otherwise.