Coronary Artery Disease, Myocardial Ischemia
Conditions
Keywords
Adenosine, Nicorandil, Fractional Flow Reserve, Maximal Hyperemia
Brief summary
The purpose of this study is to evaluate the efficacy of nicorandil in the achievement of maximal coronary hyperemia compared with adenosine.
Interventions
Firstly FFR was measured with intravenous adenosine infusion (140 μg•min-1•kg-1) via femoral vein or antecubital vein. Secondly with intracoronary adenosine bolus injection (80μg, 40μg to LCA and RCA, respectively). Lastly with intracoronary nicorandil bolus injection (1mg followed by 2mg).
Firstly FFR was measured with intracoronary nicorandil bolus injection (1mg followed by 2mg). Secondly with intravenous adenosine infusion (140 μg•min-1•kg-1) via femoral vein or antecubital vein. Lastly with intracoronary adenosine bolus injection (80μg, 40μg to LCA and RCA, respectively).
Sponsors
Study design
Eligibility
Inclusion criteria
* non -infarct related, patients with moderate coronary artery stenosis * normal left ventricular ejection fraction on echocardiogram
Exclusion criteria
* infarct-related arteries or clinically unstable state * collateral blood flow to the target vessel is shown * atrioventricular block on electrocardiogram * reduced left ventricular ejection fraction (\<50%) or left ventricular hypertrophy on echocardiogram * contraindication of adenosine * bronchial asthma
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Fractional Flow Reserve at Maximal Hyperemia | 1 day |
Secondary
| Measure | Time frame |
|---|---|
| Time to Maximal Hyperemia | 1 day |
| Changes in Heart Rate | 1 day |
Countries
South Korea