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lüll Pathogen-directed therapy in acute exacerbations of chronic obstructive pulmonary disease Martinez FJProc Am Thorac Soc 2007[Dec]; 4 (8): 647-58Acute exacerbations of chronic obstructive pulmonary disease (COPD) are important events in the natural history of this chronic lung disorder. These events can be caused by a large number of infectious and noninfectious agents and are associated with an increased local and systemic inflammatory response. Their frequency and severity have been linked to progressive deterioration in lung function and health status. Infectious pathogens ranging from viral to atypical and typical bacteria have been implicated in the majority of episodes. Most therapeutic regimens to date have emphasized broad, nonspecific approaches to bronchoconstriction and pulmonary inflammation. Increasingly, therapy that targets specific etiologic pathogens has been advocated. These include clinical and laboratory-based methods to identify bacterial infections. Further additional investigation has suggested specific pathogens within this broad class. As specific antiviral therapies become available, better diagnostic approaches to identify specific pathogens will be required. Furthermore, prophylactic therapy for at-risk individuals during high-risk times may become a standard therapeutic approach. As such, the future will likely include aggressive diagnostic algorithms based on the combination of clinical syndromes and rapid laboratory modalities to identify specific causative bacteria or viruses.|Anti-Bacterial Agents/*therapeutic use[MESH]|Antiviral Agents/*therapeutic use[MESH]|DNA, Viral/isolation & purification[MESH]|Humans[MESH]|Pulmonary Disease, Chronic Obstructive/*drug therapy/microbiology/virology[MESH]|Reverse Transcriptase Polymerase Chain Reaction[MESH]|Sputum/microbiology[MESH] |