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PubMed1992

Primary tuberculosis in childhood: radiographic manifestations.

The aim of the study was to review the radiologic features of primary tuberculosis in childhood and to determine whether differences in patterns of disease occur among age and ethnic groups. Chest radiographs of 191 children with pediatric primary tuberculosis were reviewed by two observers. Lymphadenopathy, present in 92% of cases, was the most common abnormality identified on the initial chest radiograph and typically involved the hilar and paratracheal regions. Parenchymal abnormalities, identified in 70% of cases, occurred more commonly in the right lung (P less than .001). Children 0-3 years of age had a higher prevalence of lymphadenopathy (P less than .01) and a lower prevalence of parenchymal abnormalities (P less than .001) than older children. A lower prevalence of lymphadenopathy was found in whites than in nonwhites (P less than .02). The radiologic abnormalities often progressed in the initial follow-up. Lymphadenopathy, with or without concomitant parenchymal abnormality, is the radiologic hallmark of primary tuberculosis in childhood. However, distinct age-related and racial differences in presenting patterns of disease exist and should be recognized.

Age Factors↗
PubMed1996

Pulmonary tuberculosis: comparison of CT findings in HIV-seropositive and HIV-seronegative patients.

PURPOSE: To determine the differences in the computed tomographic (CT) appearance of pulmonary tuberculosis (TB) between patients with and patients without human immunodeficiency virus (HIV) infection. MATERIALS AND METHODS: CT scans and chest radiographs of 42 HIV-seropositive and 42 HIV-seronegative patients with pulmonary TB were reviewed. CD4 T-lymphocyte counts, measured in 40 seropositive patients, were at least 200 cells per microliter in 10 patients and were less that 200 cells per microliter in 30. RESULTS: Seropositive patients had a higher prevalence of lymphadenopathy at chest radiography (P< .05). The seropositive patients had a lower prevalence of consolidation (P< .05), cavitation (P< .01), and postprimary pattern (P< .05) at CT. HIV-seropositive patients had a higher frequency of miliary (P< .01) and extrapulmonary disease (P< .001). Similar features of pulmonary TB were observed in seropositive patients with mild and severe immunosuppression. CONCLUSION: HIV-seropositive patients had a lower prevalence of localized parenchymal disease and a higher prevalence of disseminated disease at CT.

AIDS-Related Opportunistic Infections↗
PubMed2006

Menstrual disorders in nongenital tuberculosis.

Menstrual patterns differ even in nongenital tuberculosis. Our objective is to determine whether nongenital tuberculosis makes menstrual dysfunction, before and sustain after treatment. Menstrual patterns were compared in women with pulmonary or extrapulmonary but nongenital tuberculosis with healthy nursing students and also with themselves, before and after treatment in a retrospective cohort study. Subjects were selected by convenient nonrandomized sampling but control groups were selected by random allocation among volunteers of nursing students. Case and control subjects were matched in age group. Menstrual patterns including amount, duration, interval, cessation of period, any menstrual irregularity, and pelvic pain were evaluated. Among 100 cases of proven tuberculosis, 90 patients had pulmonary and 10 cases had extrapulmonary tuberculosis. Secondary amenorrhea (P < or = .001, RR: 22), spotting during menstrual period (P < or = .0001, RR: 4.5), decreasing in amount (P < or = .001, RR: 7.8), shorter duration of menstrual period (P < or = .001, RR: 12), and pelvic pain (P < or = .001, RR: 8.6) were more prevalent and significantly different in the cases compared to control subjects (with CI:95% and P < .001), but excessive or prolong vaginal bleeding was not observed. Menstrual disorders occur even in nongenital tuberculosis, but it is manifested with cessation or decrease in menstrual bleeding flow and period.

Adult↗
PubMed1979

Ten years' survey of dialysis-associated tuberculosis.

Tuberculosis associated with dialysis was studied at the Renal Unit of the Tokyo Medical and Dental University and Yokosuka Mutual Aid Hospital Kidney Center, in both of which the treatments of chronic renal failure are the same. There are 12 tuberculosis patients out of 367 patients on maintenance hemodialysis from January 1967 to December 1976, an incidence of 3.3%. This was 6-16 times greater than that in the general population of this country according to yearly statistics. The characteristics of dialysis-associated tuberculosis include a high incidence of miliary tuberculosis, especially in aged patients and difficulty in establishing the diagnosis before death. Clinical features which are helpful in the early diagnosis are intermittent high fever of unknown origin, weight loss, anorexia, abnormalities of the central nervous system, erythrocyte sedimentation rate over 100 mm/h, leukocytosis and high value of the C-reactive protein. With the increasing number of dialysis patients, an increase of dialysis-associated tuberculosis is expected and this will be one of the major problems of dialysis patients in future.

Adult↗
PubMed1995

Radiographic abnormalities in tuberculosis and risk of coexisting human immunodeficiency virus infection. Results from Dar-es-Salaam, Tanzania, and scoring system.

First, we evaluated the age profile and chest radiographic abnormalities in 146 patients from Dar-es-Salaam, Tanzania, with new-onset intrathoracic tuberculosis (pulmonary, pleural, or hilar/mediastinal adenopathy), to identify features that were associated with human immunodeficiency virus (HIV) seropositivity or seronegativity; then, we combined these data with those from a companion investigation in Burundi to develop a simple scoring system to predict HIV serologic status. Using agreed-upon criteria and simplified reporting forms, initial chest radiographs were reviewed by three readers, first independently and then at a consensus conference. Of the 146 patients, 80 (55%) were HIV seropositive and 66 were seronegative. More seropositive than seronegative subjects were 31 to 40 yr old (p = 0.03). Because the radiographic characteristics of the two serologic groups were similar in Tanzania and Burundi, we combined the data for stepwise logistic regression that revealed four highly significant variables: age, small lesions, location, and lymphadenopathy. From these, we obtained an equation to calculate the probability that a given tuberculosis patients was HIV seropositive and then we derived a scoring system that in its simplest form (threshold) predicted serologic status correctly in 68.1% of patients; a graded scale was even more accurate in the high (89.1%) and low (82.6%) ranges. This scoring system should be useful when serologic testing is unavailable or refused.

AIDS-Related Opportunistic Infections↗
PubMed1995

Radiographic abnormalities in tuberculosis and risk of coexisting human immunodeficiency virus infection. Methods and preliminary results from Bujumbura, Burundi.

We evaluated the age profile and chest radiographic abnormalities in 158 patients from Bujumbura, Burundi, with new-onset intrathoracic tuberculosis (pulmonary, pleural, or hilar/mediastinal adenopathy), to identify features that were associated with and would allow prediction of HIV seropositivity or seronegativity. Using agreed-upon criteria and prepared reporting forms, initial chest radiographs were reviewed by three readers, first independently and then at a consensus conference. Of the 158 patients, 105 (66%) were HIV seropositive and 53 patients were seronegative. Seropositive subjects (mean age, 35.8 yr) were older (p = 0.001) than seronegative subjects (mean age, 29.4 yr). Significant or borderline differences between HIV-seropositive and -seronegative patients included the frequency of small nodular lesions (p = 0.03), upper lobe cavitation (p = 0.05), and lymphadenopathy (p = 0.12), and the location of parenchymal abnormalities (p = 0.0006). Stepwise logistic regression revealed four important variables: age, small lesions, location, and lymphadenopathy; these were then used to derive an equation to calculate the probability that a given tuberculosis patient was HIV seropositive. Our mathematical model fit the observed data and the equation predicted serologic findings reasonably well. We conclude that it is possible to determine with useful probability a Burundian tuberculosis patient's HIV serologic status.

AIDS-Related Opportunistic Infections↗
PubMed1989

Prolonged elevations of soluble interleukin-2 receptors in tuberculosis.

In order to determine whether tuberculosis is associated with elevated levels of soluble interleukin-2 receptors (SIL-2R), patients with both pulmonary (n = 12) and extrapulmonary (n = 8) disease were studied. SIL-2R were measured in sera using an enzyme-linked immunosorbent assay (ELISA). Prior to treatment, all 20 patients had levels of SIL-2R significantly greater than those of the 14 control subjects. Longitudinal study of patients with pulmonary disease revealed that levels of SIL-2R remained elevated in 11 of 12 patients after 2 months, and in four of six patients after 3 months of treatment. These findings suggest that tuberculosis is characterized by prolonged activation of the immune system despite optimal chemotherapy and that SIL-2R may distinguish active immunity from immunologic memory to this infection.

Adult↗
PubMed1991

A retrospective cohort study of the risk of tuberculosis among women of childbearing age with HIV infection in Zaire.

To determine the risk of active tuberculosis associated with HIV infection, we retrospectively studied a cohort of HIV-seropositive and HIV-seronegative women participating in an HIV perinatal transmission study in Kinshasa, Zaire. After a median follow-up of 32 months, new cases of proven pulmonary or clinically diagnosed tuberculosis occurred in 19 of the 249 HIV-seropositive women (7.6%, 3.1 cases per 100 person-years) compared with 1 of the 310 HIV-seronegative women (0.3%, 0.12 cases per 100 person-years), for a relative risk of 26 (95% confidence interval, 5 to 125). Proven pulmonary tuberculosis was diagnosed in 7 HIV-seropositive women (2.8%, 1.2 cases per 100 person-years) and 1 HIV-seronegative woman (0.3%, 0.12 cases per 100 person-years), for a relative risk of 10 (95% confidence interval, 1.5 to 47). We estimated that 66 cases of proven pulmonary tuberculosis in 100,000 person-years of follow-up in women of childbearing age could be attributed to HIV; this is 35% of their estimated total incidence of proven pulmonary tuberculosis. Among those followed for 2 yr, 27 (11%) of 243 HIV-seropositive women died during 2 yr of follow-up compared with none of 296 HIV-seronegative women (p less than 0.001). In HIV-seropositive women with proven or clinically diagnosed tuberculosis mortality was even higher: 5 (26%) of the 19 HIV-seropositive women with proven pulmonary or clinically diagnosed tuberculosis died during follow-up compared with 22 (10%) of the 224 HIV-seropositive women not diagnosed as having tuberculosis (relative risk 2.7; 95% confidence interval, 1.1 to 6.3).(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗
PubMed1991

T lymphocyte activation in patients with active tuberculosis.

Soluble interleukin-2 receptor (sIL-2R) is a marker of T lymphocyte activation. We measured the amount of serum sIL-2R in 35 patients with active tuberculosis before the initiation of antituberculous treatment. Twenty had pulmonary parenchymal lesion, 8 had tuberculous pleural effusion, and 7 had tuberculous lymphadenitis. The serum sIL-2R values were markedly elevated in patients with pulmonary tuberculosis (parenchymal lesion and pleural effusion) compared with patients with tuberculous lymphadenitis (2,612 +/- 536 versus 538 +/- 121 U/ml, p = 0.023), old, inactive tuberculosis (335 +/- 23 U/ml, p = 0.001), and normal control subjects (376 +/- 38 U/ml, p = 0.001). No significant difference was found between patients with parenchymal lesion and those with tuberculous pleural effusion. There was a positive correlation between serum sIL-2R values and the extent of disease on chest radiograph (r = 0.58, p less than 0.001). We conclude that the amount of sIL-2R may be a useful marker of disease activity and extent of involvement in patients with active tuberculous lesions.

Female↗