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Causes of death in hospitalized adults with a premortem diagnosis of tuberculosis: an autopsy study

Martinson, Neil Aa,b; Karstaedt, Alanc; Venter, WD Francoisd; Omar, Tanvierc; King, Petere; Mbengo, Tumib; Marais, Elsef; McIntyre, Jamesb; Chaisson, Richard Ea; Hale, Martine

doi: 10.1097/QAD.0b013e3282eea47f
Clinical Science

Objective: To ascertain the immediate and underlying causes of death in adults who died in hospital with a premortem diagnosis of tuberculosis.

Design: Causes of death were assessed independently by internists and pathologists in 50 adults admitted to two Soweto hospitals who died 24 h or more after admission. Detailed record reviews and complete autopsies including HIV tests when not performed premortem were performed. In addition, a variety of postmortem microbiological tests were performed.

Results: Forty-seven patients had HIV infection; all were antiretroviral naive. Their median age was 34.5 years, median CD4 cell count was 48 cells/μl and median length of hospitalization before death was 6 days. Autopsy confirmed the premortem diagnosis of tuberculosis in 37 HIV-infected patients (79%), whereas 10 (21%) did not demonstrate tuberculosis. Bronchopneumonia and cytomegalovirus pneumonitis were the leading pathologies in these 10 patients. In 47 HIV-infected cadavers immediate or contributory causes of death were: extensive pulmonary tuberculosis, 32 (68%); disseminated tuberculosis, 28 (60%); bacterial pneumonia, 13 (26%); cytomegalovirus pneumonitis in seven (15%); cytomegalovirus DNA was found in 31 (66%) and Pneumocystis pneumonia was found in five cadavers (11%). The lung, followed by lymph nodes, liver and kidney, were the commonest sites of tuberculosis. Mycobacterium tuberculosis was cultured from 19 spleens, one of which was multidrug resistant, and Salmonella spp. was cultured from 11 splenic specimens.

Conclusion: We demonstrated disseminated, extensive tuberculosis associated with advanced HIV disease. Severe bacterial infections, including salmonellosis, were the leading co-morbidity, suggesting that hospitalized HIV-infected adults in whom tuberculosis is suspected may benefit from broad-spectrum antibiotic therapy.

From the aJohns Hopkins University Center for TB Research, Baltimore, Maryland, USA

bPerinatal HIV Research Unit, University of the Witwatersrand, Soweto, South Africa

cDepartment of Medicine, Chris Hani Baragwanath Hospital and University of the Witwatersrand, Soweto, South Africa

dReproductive Health and HIV Research Unit, University of the Witwatersrand, Johannesburg, South Africa

eDepartment of Anatomical Pathology, National Health Laboratory Service and University of the Witwatersrand, Johannesburg, South Africa

fDepartment of Clinical Microbiology and Infectious Diseases, University of the Witwatersrand, Johannesburg, South Africa.

Received 23 March, 2007

Revised 28 May, 2007

Accepted 15 June, 2007

Correspondence to Neil A. Martinson, Perinatal HIV Research Unit, PO Box 114, Diepkloof 1864, South Africa. E-mail: neil1.martinson@gmail.com

© 2007 Lippincott Williams & Wilkins, Inc.