ABSTRACT
Once thought to be a mere nuisance, exacerbations are now recognized as a major contributor
to the morbidity and mortality associated with chronic obstructive pulmonary disease.
This recognition has led to research using new investigative tools that has substantially
enhanced our understanding of the pathogenesis of exacerbations. Several overlapping
etiologies can precipitate the symptom complex of an exacerbation. Treatment of exacerbations
requires the use of several therapeutic modalities with the goal of restoring the
patient to baseline. Results of recent clinical trials and observational studies have
allowed a refinement of the approach to treatment of exacerbations. These include
a rational, stratified approach to the use of antibiotics and several trials substantiating
the use of systemic corticosteroids. Relapse or failure rates of 20 to 33% have been
described in the treatment of acute exacerbation, with these treatment failures contributing
substantially to the costs associated with exacerbations. Improved treatment based
on enhanced understanding and good clinical evidence should lead to better outcomes
in this common clinical entity.
KEYWORDS
Chronic obstructive pulmonary disease - exacerbation - pathogenesis - antibiotics
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Sanjay SethiM.D
VA WNY Healthcare System (151)
3495 Bailey Ave., Buffalo, NY 14215
eMail: ssethi@buffalo.edu