Acute Coronary Syndrome
Conditions
Brief summary
To determine the effect of intervention of ambient air pollution on acute coronary syndrome patients.
Detailed description
To investgate the effect of wearing facemasks to decreasing levels of exposure to ambient air on acute coronary syndrome patients.
Interventions
facemask
Sponsors
Study design
Eligibility
Inclusion criteria
1. Non-smoker of any type during past six months and living in a non-smoking household. 2. A diagnosis of myocardial infarction or unstable angina 7-90 days prior to signed informed consent.
Exclusion criteria
1. Unstable CV disorders including uncompensated heart failure, refractory angina, uncontrolled arrhythmias, critical valvular heart disease and severe hypertension. 2. A history of infection with human immunodeficiency virus. 3. History of malignancy including leukemia and lymphoma AND/OR any severe, life-threatening disease AND/OR history of drug abuse within the last 2 years. 4. Pregnancy or intent to get pregnant during the study period.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| vascular function | six months | Systolic blood pressure and diastolic blood pressure measured by omron HBP-1300 |
| autonomic nervous function | six months | Twenty four-hour electrocardiograms and heart rate variability |
Countries
China