Micobactérias atípicas em doentes sem síndroma de imunodeficiência adquirida

Mycobacterium avium Infection of Nasal Septum in a Diabetic Adult: A Case Report

Mycobacterium avium complex (MAC) is primarily a pulmonary pathogen that affects individuals who are immune deficient or immunocompromised. In this report, we describe a very rare case of MAC infection clinically presenting as a nasal polyp in a patient with type 2 diabetes mellitus. This case illustrates an atypical anatomic location for MAC, the anterior nasal septum in nasal cavity, as well as often overlooked cause of immune compromise, diabetes mellitus. We present the laboratory findings that lead to the diagnosis as well as a brief review of MAC infections.

The looming tide of nontuberculous mycobacterial infections in Portugal and Brazil

Nontuberculous mycobacteria (NTM) are widely disseminated in the environment and an emerging cause of infectious diseases worldwide. Their remarkable natural resistance to disinfectants and antibiotics and an ability to survive under low-nutrient conditions allows NTM to colonize and persist in man-made environments such as household and hospital water distribution systems. This overlap between human and NTM environments afforded new opportunities for human exposure, and for expression of their often neglected and underestimated pathogenic potential. Some risk factors predisposing to NTM disease have been identified and are mainly associated with immune fragilities of the human host. However, infections in apparently immunocompetent persons are also increasingly reported. The purpose of this review is to bring attention to this emerging health problem in Portugal and Brazil and to emphasize the urgent need for increased surveillance and more comprehensive epidemiological data in both countries, where such information is scarce and seriously thwarts the adoption of proper preventive strategies and therapeutic options.

Micobactérias não tuberculosas em cirurgias: desafio passível de enfrentamento no Brasil?

Infecções por micobactéria não tuberculosa (MNT) representam uma emergência epidemiológica e sanitária, especialmente, em pacientes submetidos a procedimentos invasivos. Frente ao exposto, objetivou-se analisar as evidências científicas, na literatura científica, sobre a ocorrência no Brasil de infecções por MNT em pacientes cirúrgicos. Utilizou-se como método de pesquisa a revisão integrativa da literatura nas bases de dados Lilacs, Medline/Pubmed, ISI Web of Science e Biblioteca Cochrane. Foram selecionadas 15 publicações sobre a temática nos últimos 30 anos que estavam direcionadas às medidas de prevenção e controle com foco na vigilância pós-alta, no uso de antibioticoterapia e glutaraldeído. Cirurgias oftalmológicas, estéticas, cardíacas e procedimentos laparoscópicos e artroscópicos foram as mais investigadas. A situação nacional das MNTs é preocupante, ainda mais quando se reconhece a possibilidade de subnotificação.