Adult Cardiology Glossary
100 terms total — 24 showing — Last updated 15 Sep 2026
Ventricular septal defect
Congenital heart defect characterized by an abnormal opening in the wall separating the right and left ventricles, causing left-to-right shunting.
PTCA
Percutaneous transluminal coronary angioplasty, a catheter-based procedure to open blocked coronary arteries using ballo...
pulmonary hypertension
Elevated pressure in the pulmonary arteries, defined as mean pulmonary artery pressure ≥20 mmHg at rest.
QRS widening
Abnormal prolongation of the QRS complex duration beyond normal limits on an electrocardiogram. Indicates delayed ventri...
Restrictive cardiomyopathy
A form of heart muscle disease characterized by rigid ventricular walls that restrict cardiac filling despite normal con...
Speckle-tracking echocardiography
Advanced ultrasound technique that tracks natural acoustic markers in myocardial tissue to measure regional and global c...
ST-elevation myocardial infarction
A type of heart attack characterized by complete blockage of a coronary artery, identifiable by specific electrocardiogr...
stress testing protocol
Standardized procedure for evaluating cardiac function and ischemia detection under physiologic or pharmacologic stress.
Stress-induced cardiomyopathy
Acute, reversible cardiomyopathy triggered by emotional or physical stress, characterized by transient left ventricular...
stress-induced ischemia
Myocardial oxygen supply-demand mismatch that becomes apparent only during increased cardiac workload or pharmacological...
Swan-Ganz catheter
A pulmonary artery catheter used for hemodynamic monitoring in critically ill cardiac patients.
Syncope workup
Systematic diagnostic evaluation of transient loss of consciousness to identify underlying cardiac, neurologic, or ortho...
SYNTAX score
Angiographic scoring system used to quantify complexity of coronary artery disease for treatment planning.
takotsubo cardiomyopathy
Acute, reversible heart muscle dysfunction typically triggered by emotional or physical stress.
target vessel revascularization
A repeat intervention on the same coronary vessel previously treated with percutaneous coronary intervention.
TAVI
A minimally invasive procedure to replace the aortic valve without open-heart surgery, typically performed in high-risk...
thrombolysis in myocardial infarction score
A standardized grading system for coronary blood flow used in cardiac catheterization procedures.
TIMI flow grade
A standardized angiographic classification system for assessing coronary blood flow, ranging from 0 (no flow) to 3 (norm...
transesophageal echocardiogram
An ultrasound imaging technique performed by inserting a probe into the esophagus to obtain detailed images of cardiac s...
transthoracic echocardiogram
A non-invasive ultrasound examination of the heart performed by placing the probe on the chest wall.
troponin
A cardiac biomarker protein complex used to diagnose myocardial injury and infarction through blood testing.
unstable angina
Acute coronary syndrome characterized by new-onset, worsening, or rest angina without myocardial necrosis.
Vasodilator stress test
Pharmacologic stress testing using medications like adenosine or dipyridamole to assess coronary blood flow and detect i...
vasospastic angina
Chest pain caused by coronary artery spasm rather than fixed atherosclerotic obstruction.
ventricular interdependence
The physiological interaction between right and left ventricles through shared septal wall and pericardial space.