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Tuberculous Pericardial Effusion: Features, Tamponade, and Computed Tomography

Department of Medicine, Ministry of Health, Kuwait, gcherian{at}vsnl.net

Babu Uthaman, MD

Department of Medicine, Ministry of Health, Kuwait

Abdulatif Salama, MD

Faculty of Medicine and Cardiology Department, Ministry of Health, Kuwait

Atef G. Habashy, MB, ChB

Faculty of Medicine and Cardiology Department, Ministry of Health, Kuwait

Nazir A. Khan, MD

Faculty of Medicine and Cardiology Department, Ministry of Health, Kuwait

Joseph M. Cherian, FFR

Chest Hospital and Radiology Department, Ministry of Health, Kuwait

The clinical features with particular reference to tamponade and mediastinal adenopathy were studied in tuberculous pericardial effusion. Tamponade is a frequent complication and the recognition of tuberculous etiology can be difficult. Involvement of the pericardium is mostly from mediastinal lymph nodes that have not been studied. This was a prospective cohort study. All patients had large effusions, and underwent pericardiocentesis and chest computed tomography. Patients with tuberculosis had specific therapy. Others with viral/idiopathic effusion served as controls for the computed tomography studies. There were 26 patients with tuberculosis: 18 had tamponade on echocardiography. All had symptoms. Fever (n=23) and dyspnea (n=20) were the most frequent presenting symptoms. Pericardial rub was heard in 14, and 3 had enlarged cervical or axillary nodes. Pulmonary tuberculosis was present in 6. Tuberculin skin test measured 17 ±3.3 mm. The biopsy specimen showed a granuloma in 22 of 24. All 26 had mediastinal lymph nodes >10 mm with a mean size of 19.5 ±8.6 mm that disappeared (81%) or regressed (19%) on treatment (p<0.001). Aortopulmonary nodes were most frequently enlarged (65.4%) and hilar the least. Three required pericardiectomy. At follow-up all were doing well. None with viral/idiopathic effusion had lymph node enlargement. Fever, dyspnea, and tamponade were frequent with tuberculosis. The prognosis was good with specific therapy. Mediastinal nodes were enlarged in all and only with tuberculosis and not with viral/idiopathic effusion. Nodes disappeared or regressed with treatment. In the appropriate clinical context, mediastinal lymph node enlargement on chest computed tomography along with a strongly positive skin test results could help in the diagnosis of a tuberculous etiology of pericardial effusion.

Angiology, Vol. 55, No. 4, 431-440 (2004)
DOI: 10.1177/000331970405500410


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