Navegando por Assunto "Pneumopatias"

Agora exibindo 1 - 2 de 2

Acesso aberto (Open Access)
Clinical aspects in patients with pulmonary infection caused by mycobacteria of the Mycobacterium abscessus complex, in the Brazilian Amazon
(Sociedade Brasileira de Pneumologia e Tisiologia, 2018-04) MONTEIRO, José Tadeu Colares; LIMA, Karla Valéria Batista; BARRETTO, Adriana Rodrigues; FURLANETO, Ismari Perini; GONÇALVES, Glenda Moraes; COSTA, Ana Roberta Fusco da; LOPES, Maria Luiza; DALCOLMO, Margareth Pretti
Objective: To describe the clinical manifestations of patients with pulmonary infection caused by mycobacteria of the Mycobacterium abscessus complex (MABSC), and to compare these manifestations with those of patients infected with other nontuberculous mycobacteria (NTM). Methods: This was a retrospective cohort study involving 43 patients divided into two groups: the MABSC group, consisting of patients with pulmonary infection caused by MABSC (n = 17); and the NTM group, consisting of patients with pulmonary infection caused by NTM other than MABSC (n = 26). Patients were previously treated with a regimen of rifampin, isoniazid, pyrazinamide, and ethambutol before the diagnosis of NTM was confirmed by two culture-positive sputum samples. The nucleotide sequences of the hsp65, 16S rRNA, and/or rpoB genes were analyzed to identify the mycobacteria. Data were collected on demographic, clinical, and radiological characteristics, as well as on treatment responses and outcomes. Results: Loss of appetite was the only clinical manifestation that was significantly more common in the MABSC group than in the NTM group (p = 0.0306). The chance of having to use a second treatment regimen was almost 12 times higher in the MABSC group than in the NTM group. Treatment success was significantly higher in the NTM group than in the MABSC group (83.2% vs. 17.6%; p < 0.0001). The chance of recurrence was approximately 37 times higher in the MABSC group than in the NTM group. Conclusions: In the study sample, treatment response of pulmonary disease caused by MABSC was less favorable than that of pulmonary disease caused by other NTM.
Acesso aberto (Open Access)
New experimental model of exposure to environmental tobacco smoke
(Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia, 2013-12) BRITO, Marcus Vinicius Henriques; YASOJIMA, Edson Yuzur; SILVEIRA, Edvaldo Lima; YAMAKI, Vitor Nagai; TEIXEIRA, Renan Kleber Costa; FEIJÓ, Daniel Haber; GONÇALVES, Thiago Barbosa
PURPOSE: To describe a new model to passive smoking for rodents. METHODS: Twenty rats were distributed into two study groups (N=10): control group (CG), that was not exposed to tobacco smoke and used as normal standard for biochemical and histological analysis; Experimental Group (EG), that Animals were exposed to the passive smoking; Euthanasia was performed after 14 days of exposure. The serum level of nicotine and histological analysis were performed. RESULTS: There was a statistical difference on the nicotine serum levels between Experimental and Control group, with level of 286 ±23 nanograma/mL in the EG and undetectable on CG (p<0.01). The histological study suggested the model efficacy producing alveolar destruction and emphysema in the EG compared with the insignificant lesions in the CG's lung. CONCLUSION: The model of exposure to environmental tobacco smoke for rodents induced easily the changes related to secondhand smoke.