Sabit, Ramsey, Bolton, Charlotte Emma, Edwards, Peter H., Pettit, Rebecca J., Evans, W.D. ![]() |
Abstract
Rationale: Chronic obstructive pulmonary disease (COPD) is associated with an increased risk of cardiovascular events and osteoporosis. Increased arterial stiffness is an independent predictor of cardiovascular disease. Objectives: We tested the hypothesis that patients with COPD would have increased arterial stiffness, which would be associated with osteoporosis and systemic inflammation. Methods: We studied 75 clinically stable patients with a range of severity of airway obstruction and 42 healthy smoker or ex-smoker control subjects, free of cardiovascular disease. All subjects underwent spirometry, measurement of aortic pulse wave velocity (PWV) and augmentation index, dual-energy X-ray absorptiometry, and blood sampling for inflammatory mediators. Measurements and Main Results: Mean (SD) aortic PWV was greater in patients, 11.4 (2.7) m/s, than in control subjects, 8.95 (1.7) m/s, p < 0.0001. Inflammatory mediators and augmentation index were also greater in patients. Patients with osteoporosis at the hip had a greater aortic PWV, 13.1 (1.8) m/s, than those without, 11.2 (2.7) m/s, p < 0.05. In patients, aortic PWV was related to age (r = 0.63, p < 0.0001) and log10 IL-6 (r = 0.31, p < 0.01), and inversely to FEV1 (r = –0.34, p < 0.01). The strongest predictors of aortic PWV in all subjects were age (p < 0.0001), percent predicted FEV1 (p < 0.05), mean arterial pressure (p < 0.05), and log10 IL-6 (p < 0.05). Conclusions: Increased arterial stiffness was related to the severity of airflow obstruction and may be a factor in the excess risk for cardiovascular disease in COPD. The increased aortic PWV in patients with osteoporosis and the association with systemic inflammation suggest that age-related bone and vascular changes occur prematurely in COPD.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Medicine |
Subjects: | R Medicine > R Medicine (General) |
Uncontrolled Keywords: | chronic obstructive pulmonary disease • cardiovascular disease • arterial stiffness • osteoporosis • systemic inflammation |
ISSN: | 15354970 |
Last Modified: | 01 Dec 2022 09:40 |
URI: | https://orca.cardiff.ac.uk/id/eprint/353 |
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