alexa Pulmonary tuberculosis in HIV infection: radiographic appearance is related to CD4+ T-lymphocyte count.


Journal of Medical Microbiology & Diagnosis

Author(s): Post FA, Wood R, Pillay GP

Abstract Share this page

Abstract SETTING: An adult HIV outpatient clinic in Cape Town, South Africa. OBJECTIVE: To investigate the relationship between the radiographic appearance of pulmonary tuberculosis (PTB) in HIV infected patients and CD4+ T-lymphocyte count. DESIGN: Pretreatment radiographs of 150 patients with newly diagnosed PTB were reviewed. CD4+ T-lymphocyte count was used as a marker of HIV disease progression. RESULTS: Upper zone infiltrate typical of PTB reactivation was present in 18 patients. This pattern was associated with early HIV infection (mean CD4+ T-cell count 389) and had 78\% positive predictive value for identifying patients with > 200 CD4+ T-lymphocytes/microL. Pleural effusion was present in 32 patients and occurred over a wide intermediate range of CD4+ T-cell counts (mean 185). Lower or midzone infiltrates, adenopathy, interstitial pattern or normal radiograph occurred in 136 patients and were associated with advanced HIV disease (mean CD4+ T-cell count 105). These patterns had 84\%, 89\%, 89\% and 100\% positive predictive value, respectively, for identifying patients with < 200 CD4+ T-cell/microL. CONCLUSION: Pulmonary tuberculosis in African HIV-positive patients presents with a spectrum of radiographic abnormalities predictive of stage of HIV disease progression. In patients dually infected with HIV and PTB, chest radiographs are a useful adjunct to clinical staging.
This article was published in Tuber Lung Dis and referenced in Journal of Medical Microbiology & Diagnosis

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

Relevant Topics

Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version