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Bronchiectasis increases mortality risk in moderate-to-severe COPD
Date:2/7/2013

Bronchiectasis is independently associated with an increased mortality risk in patients with moderate-to-severe COPD, according to a new study from researchers in Spain.

Bronchiectasis, a permanent and progressive dilation of the lung's airways, is common in COPD patients and is associated with longer and more intense exacerbations, more frequent bacterial colonization of the bronchial mucosa, and a greater degree of functional impairment.

"As COPD patients with bronchiectasis have an increased incidence of other known prognostic factors, we hypothesized that bronchiectasis itself would also have prognostic value," said lead author Miguel ngel Martnez-Garca, MD, of La Fe University and Polytechnic Hospital in Valencia, Spain. "We found that the presence and severity of bronchiectasis were associated with an increase in all-cause mortality in patients with moderate-to-severe COPD, independent of other known risk factors, including pulmonary function and other comorbidities."

The findings were published online ahead of print publication in the American Thoracic Society's American Journal of Respiratory and Critical Care Medicine.

The multicenter prospective observational study included 201 consecutive patients with moderate-to-severe COPD; 115 of them (57.2%) had bronchiectasis, which was diagnosed by high-resolution computed tomography (CT) scan of the chest. COPD severity was classified according to Global Initiative for Chronic Obstructive Lung Disease (GOLD) criteria.

During a median 48 months of follow-up, there were 51 deaths, including 43 among the patients with bronchiectasis. In a multivariate analysis adjusted for dyspnea, body mass index, presence of potentially pathogenic microorganisms in sputum,comorbidities, number of severe exacerbations and other potentially confounding factors, bronchiectasis was associated with a significantly increased risk of all-cause mortality (hazard ratio 2.54, 95%CI,
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Contact: Nathaniel Dunford
ndunford@thoracic.org
212-315-8620
American Thoracic Society
Source:Eurekalert

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