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  • Title: Carotid intima-media thickness in patients with chronic obstructive pulmonary disease.
    Author: Pobeha P, Skyba P, Joppa P, Kluchova Z, Szaboova E, Tkac I, Tkacova R.
    Journal: Bratisl Lek Listy; 2011; 112(1):24-8. PubMed ID: 21452775.
    Abstract:
    OBJECTIVE: Chronic obstructive pulmonary disease (COPD) is associated with increased cardiovascular morbidity and mortality. Several large population-based cohort studies identified an association between reduced lung function and increased intima-media thickness (IMT). Nevertheless, a vast majority of subjects in these studies did not suffer from COPD and thus it remains unclear whether IMT differs among various stages of COPD severity. The aim of the present pilot study was to evaluate IMT in central European patients with moderate, severe and very severe COPD. METHODS: In forty-nine patients (34 men, 15 women; mean age 66.1 +/- 10.9 years) with COPD, the combined thickness of intima and media layers of the common carotid arteries was measured using B-mode ultrasound imaging. RESULTS: Increased cardiovascular disease risk as evidenced by carotid IMT values greater or equal to 75th percentile were present in 14 (28.6%), whereas IMT hypertrophy (IMT values greater or equal 0.80 mm) was present in 24 (49.0%) of patients. Average IMT in the entire cohort was 0.85 +/- 0.21 mm, with no significant differences from stage II to stages III and IV of COPD. CONCLUSION: Present results indicate a high prevalence of IMT hypertrophy and increased cardiovascular disease risk as assessed by carotid ultrasonography in COPD patients with a broad spectrum of airway obstruction severity. The lack of differences in carotid IMT between various stages of lung impairment severity suggests that atherosclerosis starts early in the course of COPD. Therefore, the need to screen patients for the presence of concomitant atherosclerosis in early stages of COPD severity may be warranted (Tab. 2, Ref. 33).
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