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  • Title: Clinical course of human immunodeficiency virus type 1 associated pulmonary tuberculosis during short-course antituberculosis therapy.
    Author: Schwander SK, Dietrich M, Mugyenyi P, Kityo C, Okwera A, Johnson J, Nsubuga P, Ruesch-Gerdes S, Whalen C.
    Journal: East Afr Med J; 1997 Sep; 74(9):543-8. PubMed ID: 9487427.
    Abstract:
    To describe the clinical response to antituberculosis therapy in HIV-1 disease, 49 HIV-1 positive Ugandan adults (mean age 29.4 years; 68% men) with active pulmonary tuberculosis (PTB) were studied in a trial of rifampicin containing short-course antituberculosisis regimens. At presentation, 18 patients were PPD non-reactors (PPD skin test induration < 2mm), ten patients (20%) had non-cavitary lung disease. The mean CD4 lymphocyte count at presentation was 339/microliters (+/- SD 275). Among patients with abnormal baseline clinical values, the median time to resolution of fever, weight gain of 10%, increase of haemoglobin to 10g/dl and of Karnofsky performance score (KPS) to 80 occurred before sputum smear and culture conversion. Short-term survival was associated with: baseline lymphocytes < 1200/microliters, (Odds ratio (OR) 17.5), CD4+ lymphocytes < 200/microliters (OR 9.8), cavitary lung disease, (OR 0.6), atypical chest radiograph, (OR 6.7), and PPD non-reactivity, (OR 13.5), PPD non-reactivity and non-cavitary disease were associated with significantly lower CD4 lymphocyte counts. Affordable serial measurements parallel the response to therapy and predict survival in HIV-associated PTB. Tuberculosis (TB) is the most often seen and serious opportunistic infection in HIV-1-infected individuals in developing countries. Infection with HIV-1 predisposes individuals to TB, both progressive primary and reactivation disease. To describe the clinical response to anti-TB therapy in HIV-1 disease, 49 HIV-1-positive Ugandan adults of mean age 29.4 years with active pulmonary TB (PTB) were studied in a trial of rifampicin containing short-course anti-TB regimens. At presentation, 18 patients were PPD skin test nonreactive, and 39 had cavitary lung disease. The mean CD4 lymphocyte count at presentation was 339/mcl. Among patients with abnormal baseline clinical values, the median time to resolution of fever, weight gain of 10%, increase of hemoglobin to 10 g/dl, and Karnofsky performance score (KPS) to 80 occurred before sputum smear and culture conversion. Short-term survival was associated with baseline lymphocytes of less than 1200/mcl, cavitary lung disease, atypical chest radiograph, and PPD nonreactivity. PPD nonreactivity and noncavitary disease were associated with significantly lower CD4 lymphocyte counts. Study findings demonstrate that the careful monitoring of clinical symptoms and simple, inexpensive, and widely available laboratory markers permit the satisfactory evaluation of early clinical response to anti-TB therapy in HIV-1-infected patients with pulmonary TB.
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