Cardiovascular Research Glossary
100 terms total — 24 showing — Last updated 15 Sep 2026
coronary microvascular dysfunction CMD
Impaired function of small coronary vessels (<500 μm) that cannot be visualized on conventional angiography, causing ischemia despite normal epicardial arteries.
DAPT
Dual antiplatelet therapy combining aspirin with a P2Y12 inhibitor to prevent thrombotic events after percutaneous coron...
definite stent thrombosis
Angiographically confirmed complete occlusion or flow-limiting thrombus within or adjacent to a previously implanted ste...
device success
Achievement of successful deployment and positioning of a medical device (such as a stent) according to predefined techn...
device-oriented composite endpoint
Standardized composite outcome measure in cardiovascular device trials combining cardiac death, target vessel myocardial...
device-related thrombosis
Blood clot formation specifically associated with implanted cardiac devices such as stents or mechanical valves.
door-to-balloon time
The interval from hospital arrival to first balloon inflation during primary PCI for STEMI patients.
drug-eluting balloon
Angioplasty balloon catheter coated with antiproliferative medication that transfers drug directly to vessel wall during...
DSMB
An independent committee that monitors clinical trial safety data and makes recommendations regarding trial continuation...
ejection fraction
The percentage of blood pumped out of the left ventricle with each heartbeat, commonly used as a measure of cardiac func...
endpoint adjudication
The systematic review and classification of potential clinical endpoints by independent experts to ensure consistent and...
FFR
Hemodynamic measurement assessing the functional significance of coronary stenosis during maximal hyperemia.
fractional flow reserve
Invasive physiologic measurement comparing distal coronary pressure to aortic pressure during maximal hyperemia to asses...
GCP
An international ethical and scientific quality standard for designing, conducting, recording, and reporting clinical tr...
global longitudinal strain
Echocardiographic measure of left ventricular systolic function assessing myocardial deformation during contraction usin...
GRACE score
A validated risk stratification tool for predicting in-hospital and post-discharge mortality in patients with acute coro...
hazard ratio
A measure of treatment effect in time-to-event analyses, comparing the instantaneous risk of events between treatment gr...
hemodynamics
The study of blood flow dynamics and pressures within the cardiovascular system.
HFpEF
Heart failure with preserved ejection fraction, a clinical syndrome characterized by symptoms of heart failure despite n...
HFrEF
Heart failure with reduced ejection fraction, defined as ejection fraction ≤40% with signs and symptoms of heart failure...
in-stent restenosis
Re-narrowing of a coronary artery within or adjacent to a previously implanted stent, typically defined as >50% diameter...
informed consent
The process of providing potential research participants with comprehensive information about a study to enable voluntar...
instantaneous wave-free ratio
A resting coronary physiology index that assesses functional significance of coronary stenosis without pharmacological v...
intention-to-treat
An analysis principle that includes all randomized participants in their originally assigned treatment groups, regardles...
interim analysis
Pre-planned statistical evaluation of trial data before study completion, often used for safety monitoring or efficacy a...