COPD exacerbations up risk of cardiopulmonary complications

In patients with chronic obstructive pulmonary disease (COPD), acute exacerbations contribute to an increased risk of cardiopulmonary complications, as shown in a retrospective cohort study.

Researchers used data from Clalit Health Services database and looked at patients aged ≥40 years who had a recent diagnosis of COPD. Patients who experienced a first moderate or severe acute COPD exacerbation were matched to those without prior exacerbations. Matching was performed according to COPD duration.

Cardiopulmonary outcomes included a composite cardiopulmonary event, cardiovascular events, respiratory events, severe COPD exacerbation, mechanical ventilation, and acute respiratory failure.

The matched cohort included 51,480 patients. Inverse probability weighting analysis showed that acute COPD exacerbation was associated with an increased risk of all cardiopulmonary outcomes.

The risk increase was 19 percent for the composite cardiopulmonary event (hazard ratio [HR], 1.19, 95 percent confidence interval [CI], 1.16–1.23), 12 percent for cardiovascular events (HR, 1.12, 95 percent CI, 1.08–1.16), 35 percent for respiratory events (HR, 1.35, 95 percent CI, 1.30–1.39), 51 percent for severe COPD exacerbation (HR, 1.51, 95 percent CI, 1.44–1.58), 58 percent for mechanical ventilation (HR, 1.58, 95 percent CI, 1.43–1.75), and 82 percent for acute respiratory failure (HR, 1.82, 95 percent CI, 1.65–2.01).

The findings point to acute COPD exacerbation as a high-risk period for subsequent cardiopulmonary complications, the researchers said. This underscores the need for proactive, multidisciplinary management and close follow-up after an exacerbation.