Coronary Artery Disease, Microvascular Coronary Artery Disease
Conditions
Keywords
Coronary flow reserve, Fractional flow reserve, Microvascular resistance, Thermodilution, Doppler flow velocity
Brief summary
This study evaluates the prognostic value and potential therapeutic impact of combined pressure and flow measurements in the evaluation of epicardial coronary stenosis and microvascular function.
Detailed description
ILIAS registry is a global effort to gather lesion-level data on the diagnostic and prognostic value of combined coronary pressure and flow measurements in clinical practice. Data is gathered from 7 nations (The Netherlands, Korea, Japan, Spain, Italy, Denmark, USA), using either coronary Doppler velocity measurements or coronary thermodilution measurements to obtain invasive coronary flow assessment. Patient treatment was governed by the local clinical practice guidelines at the time of the invasive procedure, but was at the operator's discretion. A standardized data collection sheet was used and all study adopted standardized definition of patient's baseline characteristics, clinical outcomes, and physiologic data. In case of acute coronary syndrome (unstable angina, non-ST-segment elevation myocardial infarction, and ST-segment elevation myocardial infarction), only non-culprit vessel evaluation was used.
Interventions
Calculation of the resting mean distal coronary to aortic pressure ratio (resting Pd/Pa), fractional flow reserve (Pd/Pa at hyperemia), Coronary flow reserve (peak flow/resting flow), microvascular resistance (Pd/flow).
Sponsors
Study design
Eligibility
Inclusion criteria
* underwent combined measurements of coronary pressure and flow for at least 1native coronary artery
Exclusion criteria
* hemodynamic instability * culprit vessel of acute coronary syndrome
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Major adverse cardiac events | 10 years | Cumulative incidence of a composite of any death, any myocardial infarction, or any ischemia-driven revascularization |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Target vessel failure | 10 years | Cumulative incidence of a composite of cardiac death, target-vessel related myocardial infarction, or target-vessel revascularization |
| Individual components of MACE and TVF | 10 years | Cumulative incidence of the individual components of MACE and TVF |
Countries
Denmark, Italy, Japan, Netherlands, South Korea, Spain, United States