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The purpose of the study is to determine a possible association between the clinical entity of exacerbation, markers of systemic inflammation and endothelial dysfunction in patients with COPD.
Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory disease of the lungs; however, there is cumulating data suggesting that the inflammatory reaction associated with COPD is not restricted to the lungs but has systemic effects. Patients with COPD have increased cardiovascular morbidity and mortality. The suspected link between increased cardiovascular mortality and systemic inflammation is endothelial dysfunction, which in turn is caused by impaired activity of NO. Endothelial dysfunction has been demonstrated in patients with COPD. Furthermore there is a close correlation between endothelial dysfunction in coronary and peripheral vessels, which allows assessing flow-mediated dilation (FMD) in the brachial artery via high resolution ultrasound as an early predictor of atherosclerosis. Moreover, systemic inflammatory markers correlate with endothelial dysfunction in patients with stable COPD.
Exacerbations of COPD are episodes of worsening symptoms characterized by increased airway and systemic inflammation. If systemic inflammation is a cause of endothelial dysfunction in COPD, endothelial function would be suspected to be further impaired during exacerbation and recover thereafter. The purpose of this study is to determine a possible association between the clinical entity of exacerbation, markers of systemic inflammation and endothelial dysfunction in patients with COPD.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Exacerbation | The study sample will consist of patients admitted to the hospital because of an acute exacerbation of COPD |
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| Measure | Description | Time Frame |
|---|---|---|
| change of endothelial dysfunction (impaired vasomotor reactivity due to shaer stress) confirmed by non-invasive measurement of flow mediated dilation (FMD) 6-8 weeks after acute exacerbation of COPD | Baseline, Week 6-8 |
| Measure | Description | Time Frame |
|---|---|---|
| change of systemic inflammation 6-8 weeks after COPD-exacerbation confirmed by inflammatory markers such as interleukin-6 (IL-6), fibrinogen levels, and C-reactive protein (CRP) levels | baseline, week 6-8 |
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Inclusion Criteria:
Exclusion Criteria:
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Patients with COPD diagnosed according to standard criteria in the state of acute exacerbation
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| Name | Affiliation | Role |
|---|---|---|
| Georg C Funk, M.D. | 1. Department of Respiratory and Critical Care Medicine and Ludwig Boltzmann Institute for COPD, Otto-Wagner Hospital, Vienna, Austria | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| 1.Department of Respiratory and Critical Care Medicine and Ludwig Boltzmann Institute for COPD, Otto-Wagner Hospital | Vienna | State of Vienna | 1140 | Austria |
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| ID | Term |
|---|---|
| D029424 | Pulmonary Disease, Chronic Obstructive |
| ID | Term |
|---|---|
| D008173 | Lung Diseases, Obstructive |
| D008171 | Lung Diseases |
| D012140 | Respiratory Tract Diseases |
| D002908 | Chronic Disease |
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Serum, Plasma
| D020969 |
| Disease Attributes |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |