Cardiology Intervention Glossary
100 terms total — 24 showing — Last updated 15 Sep 2026
fractional flow reserve FFR
A physiological measurement used to assess the functional significance of coronary stenosis during catheterization.
ischemia-driven revascularization
Repeat intervention performed specifically in response to documented myocardial ischemia rather than routine angiographi...
IVUS
Intravascular ultrasound imaging technique used to assess coronary artery dimensions, plaque characteristics, and stent...
kissing balloon technique
Simultaneous inflation of two balloons in bifurcation lesions to optimise both main vessel and side branch outcomes.
kissing stents
Technique involving simultaneous deployment of two stents in adjacent coronary vessels or bifurcation branches.
left main coronary artery disease
Atherosclerotic narrowing of the left main coronary artery, considered high-risk due to large myocardial territory suppl...
MACE
Major adverse cardiovascular events, a composite endpoint used in clinical trials and outcome studies.
mechanical circulatory support
Temporary devices used to assist or replace cardiac function during high-risk interventions.
microvascular dysfunction
Impaired function of coronary microvasculature affecting myocardial perfusion despite normal epicardial vessels.
minimal lumen area
The smallest cross-sectional area of a coronary vessel lumen, typically measured by intravascular imaging.
myocardial blush grade
An angiographic assessment of myocardial tissue-level perfusion, graded 0-3 based on contrast opacification and clearanc...
myocardial viability assessment
Evaluation of dormant but recoverable heart muscle tissue to guide revascularization decisions.
no-reflow
A phenomenon characterized by impaired myocardial perfusion despite successful epicardial vessel opening during PCI.
no-reflow phenomenon
Inadequate myocardial perfusion despite successful recanalization of an epicardial coronary artery during PCI.
no-touch technique
Surgical approach that minimises manual manipulation of saphenous vein grafts to preserve endothelial function.
optical coherence tomography
A high-resolution intravascular imaging technique using near-infrared light to assess coronary artery microstructure.
ostial lesion
Coronary stenosis located at the origin or opening of a vessel, requiring specialized intervention techniques.
PCSK9 inhibitor
Class of lipid-lowering medications that block PCSK9 protein to reduce LDL cholesterol in cardiovascular patients.
percutaneous coronary intervention
A minimally invasive procedure to open blocked coronary arteries using a catheter inserted through the skin.
pericardial effusion
Abnormal accumulation of fluid in the pericardial space, a potential complication of cardiac procedures.
periprocedural complications
Adverse events occurring during or immediately following interventional cardiac procedures.
periprocedural myocardial infarction
Heart attack occurring in association with coronary intervention procedures.
physiological lesion assessment
Evaluation of coronary stenosis functional significance using pressure or flow-based measurements rather than angiograph...
plaque shift
Displacement of atherosclerotic material during coronary intervention that can compromise adjacent vessel branches.
postdilatation
High-pressure balloon inflation performed after stent deployment to optimize stent expansion and apposition.