Brazilian Journal of Pulmonology

ISSN (on-line): 1806-3756 | ISSN (printed): 1806-3713

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Coexistence of intracavitary fungal colonization (fungus ball) and active tuberculosis

Coexistência de colonização fúngica intracavitária (bola fúngica) e tuberculose ativa

Gisela Unis, Pedro Dornelles Picon, Luiz Carlos Severo

J Bras Pneumol.2005;31(2):139-143

Abstract PDF PT PDF EN Portuguese Text

Background: Although pulmonary tuberculosis is the principal predisposing factor for intracavitary fungal colonization, the coexistence of the two diseases is rare. Simultaneity of fungal colonization and active mycobacteriosis in the same cavity (acid-fast bacilli found among hyphal masses) is highly unusual. Objective: To describe clinical findings, diagnostic procedures, radiographic aspects, accompanying conditions and evolution in patients with tuberculosis and fungus ball. Method: We reviewed, retrospectively, the records of 625 patients diagnosed with fungus ball between 1974 and 2002. All of the patients had been diagnosed through immunodiffusion or mycological study, or both. The inclusion criterion was positivity for acid-fast bacilli in sputum smear microscopy or histopathology. Results: The charts of 14 patients were selected. All had presented hemoptysis, followed by productive cough, dyspnea, weight loss, fever, asthenia and chest pain. In one patient colonized by Aspergillus niger and in another colonized by Scedosporium apiospermum (Teleomorph, Pseudallescheria boydii), active tuberculosis was seen concomitant to the fungus ball. In the remaining cases, the mycobacteria were found in the adjacent parenchyma or in the contralateral lung. Conclusion: This study corrobates the assertion that antagonism exists between Mycobacterium tuberculosis and Aspergillus fumigatus. The potential for fungal colonization and mycobacteriosis to occur concomitantly is demonstrated in other fungal agents, S. apiospermum (P. boydii) and A. niger in particular.

 


Keywords: Key words: Aspergillosis. Aspergillus fumigatus. Aspergillus niger. Pseudallescheria. Mycobacterium tuberculosis. Scedosporium apiospermum.

 


Retreatment of tuberculosis patients in the city of Porto Alegre, Brazil: outcomes

Desfechos do retratamento de pacientes com tuberculose com o uso do esquema 3 em Porto Alegre, Brasil

Pedro Dornelles Picon, Carlos Fernando Carvalho Rizzon, Sergio Luiz Bassanesi, Luiz Carlos Correa da Silva, Maria de Lourdes Della Giustina

J Bras Pneumol.2011;37(4):504-511

Abstract PDF PT PDF EN Portuguese Text

Objective: To describe the outcomes of retreatment in tuberculosis patients receiving the regimen known, in Brazil, as regimen 3 (streptomycin, ethambutol, ethionamide, and pyrazinamide for 3 months + ethambutol and ethionamide for 9 months) after treatment failure with the basic regimen (rifampin, isoniazid, and pyrazinamide for 2 months + rifampin and isoniazid for 4 months). Methods: A descriptive, uncontrolled, historical cohort study involving adult tuberculosis patients treated with regimen 3. We evaluated adverse drug effects, recurrence, treatment outcomes, and associated factors. Results: The study included 229 patients. The overall cure rate was 62%. For the patients who used the medications regularly and those who did not, the cure rate was 88% and 31%, respectively. Adverse events occurred in 95 patients (41.5%), and most of those events were related to the gastrointestinal tract. In the five-year follow-up period, relapse occurred in 17 cases (12.0%). Conclusions: Overall, the outcomes of treatment with regimen 3 were unsatisfactory, in part because this regimen was administered to a selected population of patients at high risk for noncompliance with treatment, as well as because it presents high rates of adverse effects, especially those related to the gastrointestinal tract, which might be caused by ethionamide. However, for those who took the medications regularly, the cure rate was satisfactory. The recurrence rate was higher than that recommended in international consensus guidelines, which might be attributable to the short (12-month) treatment period. We believe that regimen 3, extended to 18 months, represents an option for patients with proven treatment compliance.

 


Keywords: Tuberculosis, pulmonary/therapy; Treatment outcome; Retreatment.

 


Differences in the clinical and radiological presentation of intrathoracic tuberculosis in the presence or absence of HIV infection

Diferenças na apresentação clínico-radiológica da tuberculose intratorácica segundo a presença ou não de infecção por HIV

Pedro Dornelles Picon, Maria Luiza Avancini Caramori, Sérgio Luiz Bassanesi, Sandra Jungblut, Marcelo Folgierini, Nelson da Silva Porto, Carlos Fernando Carvalho Rizzon, Roberto Luiz Targa Ferreira, Tânia Mariza de Freitas, Carla Adriane Jarczewski

J Bras Pneumol.2007;33(4):429-436

Abstract PDF PT PDF EN Portuguese Text

Objective: To describe the differences in the clinical and radiological presentation of tuberculosis in the presence or absence of HIV infection. Methods: A sample of 231 consecutive adults with active pulmonary tuberculosis admitted to a tuberculosis hospital were studied, assessing HIV infection, AIDS, and associated factors, as well as re-evaluating chest X-rays. Results: There were 113 HIV-positive patients (49%) Comparing the 113 HIV-positive patients (49%) to the 118 HIV-negative patients (51%), the former presented a higher frequency of atypical pulmonary tuberculosis (pulmonary lesions accompanied by intrathoracic lymph node enlargement), hematogenous tuberculosis, and pulmonary tuberculosis accompanied by superficial lymph node enlargement, as well as presenting less pulmonary cavitation. The same was found when HIV-positive patients with AIDS were compared to those without AIDS. There were no differences between the HIV-positive patients without AIDS and the HIV-negative patients. Median CD4 counts were lower in HIV-positive patients with intrathoracic lymph node enlargement and pulmonary lesions than in the HIV-positive patients with pulmonary lesions only (47 vs. 266 cells/mm3; p < 0.0001), in HIV-positive patients with AIDS than in those without AIDS (136 vs. 398 cells/mm3; p < 0.0001) and in patients with atypical pulmonary tuberculosis than in those with other forms of tuberculosis (31 vs. 258 cells/mm3; p < 0.01). Conclusion: Atypical forms and disseminated disease predominate among patients with advanced immunosuppression. In regions where TB prevalence is high, the presence of atypical pulmonary tuberculosis or pulmonary tuberculosis accompanied by superficial lymph node enlargement should be considered an AIDS-defining condition.

 


Keywords: Tuberculosis, pulmonary; HIV infections; Radiography, thoracic.

 


Risk factors for recurrence of tuberculosis

Fatores de risco para a recidiva da tuberculose

Pedro Dornelles Picon, Sergio Luiz Bassanesi, Maria Luiza Avancini Caramori, Roberto Luiz Targa Ferreira, Carla Adriane Jarczewski, Patrícia Rodrigues de Borba Vieira

J Bras Pneumol.2007;33(5):572-578

Abstract PDF PT PDF EN Portuguese Text

Objective: To identify risk factors for recurrence of tuberculosis. Methods: We studied a cohort of 610 patients with active pulmonary tuberculosis who were enrolled for treatment between 1989 and 1994 and cured using a three-drug treatment regimen of rifampin, isoniazid and pyrazinamide (RHZ). The risk factors studied were age, gender, race, duration of symptoms, lesion cavitation, extent of disease, diabetes mellitus, alcoholism, HIV infection, delayed negative sputum conversion, treatment compliance, and medication doses. In order to detect recurrence, the patients were monitored through the Rio Grande do Sul State Healt Department Information System for 7.7 ± 2.0 years after cure. Data were analyzed using the Student's t-test, the chi-square test or Fisher's exact test, and Cox regression models. Results: There were 26 cases of recurrence (4.3%), which corresponds to 0.55/100 patients-year. The recurrence rate was 5.95 and 0.48/100 patients-year in HIV-positive and HIV-negative patients, respectively (p < 0.0001). In the multivariate analysis, HIV infection [RR = 8.04 (95% CI: 2.35-27.50); p = 0.001] and noncompliance [RR = 6.43 (95% CI: 2.02-20.44); p = 0.002] proved to be independently associated with recurrence of tuberculosis. Conclusions: Recurrence of tuberculosis was more common in HIV-positive patients and in patients who did not comply with the self-administered treatment (RHZ regimen). Patients presenting at least one of these risk factors can benefit from the implementation of a post-treatment surveillance system for early detection of recurrence. An alternative to prevent noncompliance with tuberculosis treatment would be the use of supervised treatment.

 


Keywords: Tuberculosis; Recurrence; Risk factors.

 


Results of tuberculosis treatment with streptomycin, isoniazid, and ethambutol (scheme SHM)

Resultado do tratamento da tuberculose com estreptomicina, isoniazida e etambutol (esquema SHM)

Pedro Dornelles Picon, Maria de Lourdes Della Giustina, Carlos Fernando Carvalho Rizzon, Sérgio Luiz Bassanesi, Ana Paula Zanardo, Matheus Truccolo Michalczuk, Letícia Rebolho Dei Ricardi

J Bras Pneumol.2002;28(4):187-192

Abstract PDF PT

Aim: To evaluate the performance of an SHM scheme (streptomycin, isoniazid, and ethambutol) in an outpatient clinic routine treatment for tuberculosis. Method: Seventy-eight patients with tuberculosis whose prior treatment with the RHZ scheme (six months of rifampicin, isoniazid, and pyrazinamide) had to be discontinued due to adverse effects, or who could not receive the RHZ scheme due to high risk for liver toxicity, were treated in the outpatient clinic with the 12 month SHM scheme from 1986 to 1994, in the city of Porto Alegre, Rio Grande do Sul, Brazil. Results: Three patients (3.8%) required a scheme change due to toxicity. In the remaining 75 patients, 58 (77.3%) were cured, eight (10.7%) withdrew, five (6.7%) presented failure, and four (5.3%) died. Theoretical cure rate, which is the percent of cure of patients who regularly followed the treatment, was 95.3%. Adverse reactions were seen in 32 patients (41%), the most frequent being vestibular damage in 18 patients (23.1%). Results were compared to those obtained in the same outpatient clinic with the 12 month RHM scheme (rifampicin, isoniazid, and ethambutol), and with the six month RHZ scheme. Conclusion: The SHM scheme may be recommended as an alternative for the treatment of tuberculosis whenever the RHZ scheme cannot be indicated.

 



 

 


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