Leptospirosis is a re-emerging zoonosis occurring as large outbreaks throughout the world caused by Leptospira interrogans. The incidence of pulmonary involvement in leptospirosis has been reported to be increasing in the last years, affecting up to 70% of the patients. Alveolar hemorrhage presented as dyspnea and hemoptysis is the main pulmonary manifestation. The emergence of massive hemoptysis and acute respiratory distress syndrome has characterized the recent changes reported in the clinical patterns of leptospirosis. The pulmonary involvement has been emerged as a serious life threat, becoming the main cause of death due to leptospirosis in some countries. In this review we present the main clinical and pathological manifestations of pulmonary involvement in leptospirosis, with special focus on recent data concerning the pathophysiological mechanisms underlying lung injury.
Interstitial lung diseases (ILDs) are heterogeneous disorders, involving a large number of conditions, the approach to which continues to pose an enormous challenge for pulmonologists. The 2012 Brazilian Thoracic Association ILD Guidelines were established in order to provide Brazilian pulmonologists with an instrument that can facilitate the management of patients with ILDs, standardizing the criteria used for the diagnosis of different conditions and offering guidance on the best treatment in various situations. The objective of this article was to briefly describe the highlights of those guidelines.Keywords: Lung diseases, interstitial; Guidelines as topic; Brazil.
ResumoAs doenças pulmonares intersticiais (DPIs) são afecções heterogêneas, envolvendo um elevado número de condições, cuja abordagem ainda é um grande desafio para o pneumologista. As Diretrizes de DPIs da Sociedade Brasileira de Pneumologia e Tisiologia, publicadas em 2012, foram estabelecidas com o intuito de fornecer aos pneumologistas brasileiros um instrumento que possa facilitar a abordagem dos pacientes com DPIs, padronizando-se os critérios utilizados para a definição diagnóstica das diferentes condições, além de orientar sobre o melhor tratamento nas diferentes situações. Esse artigo teve como objetivo descrever resumidamente os principais destaques dessas diretrizes.Descritores: Doenças pulmonares intersticiais; Guias como assunto; Brasil.
Pulmonary hemorrhage represents the main cause of death in severe forms of leptospirosis. Although the mechanism of pulmonary impairment is still poorly understood, recent experimental studies have brought new insights to the pathogenesis of lung injury and provide new perspectives on treatment of critically ill patients.
Paracoccidioidomycosis is a systemic infection caused by the dimorphic fungus Paracoccidioides brasiliensis. It is commonly an endemic disease in Latin America, but several cases have been reported outside this area, particularly now in this time of world globalization. Primary pulmonary infection occurs commonly in the first and second decades of life and usually has a benign, self-limited respiratory infection course. The adult chronic manifestation of the disease is usually the result of reactivation of quiescent lesions with diffuse lung infiltrates, predominately of the interstitial pattern, with or without involvement of various other organs. The finding of this disease in a patient is an important step for the large differential diagnosis of the interstitial lung diseases group.
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