Cardiovascular events in patients with COPD: TORCH Study results.
Summary of "Cardiovascular events in patients with COPD: TORCH Study results."
Background Previous studies have suggested that long-term use of beta agonists to treat chronic obstructive pulmonary disease (COPD) may increase the risk of cardiovascular adverse events. In this post hoc analysis, data from the TOwards a Revolution in COPD Health (TORCH) study were used to investigate whether use of the long-acting beta(2) agonist salmeterol over 3 years increased the risk of cardiovascular adverse events in patients with moderate to severe COPD. Methods TORCH was a randomised, double-blind, placebo controlled study conducted at 444 centres in 42 countries. Patients (n=6184; safety population) received twice daily combined salmeterol 50 mug plus fluticasone propionate 500 mug (SFC), either component alone, or placebo. Adverse events were recorded every 12 weeks for 3 years. Results The probability of having a cardiovascular adverse event by 3 years was 24.2% for placebo, 22.7% for salmeterol, 24.3% for fluticasone propionate and 20.8% for SFC. Although a history of myocardial infarction doubled the probability of cardiovascular adverse events, the event rates remained similar across treatment groups. Conclusion Post hoc analysis of the 3-year TORCH dataset showed that salmeterol alone or in combination (SFC) did not increase the risk of cardiovascular events in patients with moderate to severe COPD.
Affiliation
Department of Medicine, University Hospital Aintree, Longmoor Lane, Liverpool L9 7AL, UK. pmacal@liverpool.ac.uk.
Journal Details
This article was published in the following journal.
Name: Thorax
ISSN: 1468-3296
Pages: 719-725
Links
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/20685748
- DOI: http://dx.doi.org/10.1136/thx.2010.136077
Medical and Biotech [MESH] Definitions
Cardiovascular Physiological Processes
Biological actions and events that support the functions of the CARDIOVASCULAR SYSTEM.
Retrospective Studies
Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.
Platelet Activation
A series of progressive, overlapping events, triggered by exposure of the PLATELETS to subendothelial tissue. These events include shape change, adhesiveness, aggregation, and release reactions. When carried through to completion, these events lead to the formation of a stable hemostatic plug.
Anatomy, Regional
The anatomical study of specific regions or parts of organisms, emphasizing the relationship between the various structures (e.g. muscles, nerves, skeletal, cardiovascular, etc.).
Cardiovascular Physiological Phenomena
Processes and properties of the CARDIOVASCULAR SYSTEM as a whole or of any of its parts.
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