The role of antimicrobial therapy in acute exacerbations of chronic bronchitis

Acute exacerbations of chronic bronchitis (AECB) result in increased morbid ity and mortality. The role of bacteria in AECB, the importance of antimicr obial therapy, and the choice of antimicrobial agents have been debated for decades. Fortunately, within the past few years, a number of studies and o ne consensus statement have been reported that have increased the understan ding of the role of bacteria in AECB and suggest approaches in selecting an timicrobial therapy. This article will review these studies and present an empiric approach in treating AECB based upon the patient's presenting findi ngs, related risk factors, and potential antimicrobial resistance patterns that may be encountered.