Cardiology Glossary

A specialized catheter that measures real-time ventricular volume and pressure using electrical conductance principles.

A condition where the coronary arteries become narrowed or blocked due to atherosclerotic plaque buildup.

A phenomenon where vasodilation of normal coronary arteries diverts blood flow away from areas supplied by stenotic vess...

The coronary artery stenosis or plaque rupture responsible for an acute coronary syndrome.

A coronary stent coated with medication to prevent restenosis after percutaneous coronary intervention.

The phase of the cardiac cycle when the heart muscle relaxes and the chambers fill with blood.

Impaired relaxation and filling of the left ventricle during diastole, often with preserved systolic function.

Heart failure with preserved ejection fraction caused by impaired ventricular relaxation and filling.

Pharmacologic stress test using dobutamine infusion with echocardiographic monitoring to detect coronary artery disease.

Abnormal heart rhythm, often used interchangeably with arrhythmia in clinical documentation but with subtle editorial di...

Uncoordinated contraction of cardiac chambers or ventricular segments, commonly assessed for cardiac resynchronization t...

Ultrasound imaging study of the heart used to assess cardiac structure and function in clinical documentation.

A measurement of the percentage of blood pumped out of the left ventricle with each heartbeat, commonly abbreviated as E...

A cardiac arrest rhythm characterized by organized electrical activity on ECG but absence of effective mechanical contra...

Invasive procedure using intracardiac catheters to evaluate and treat heart rhythm disorders.

Sudden onset of severe pulmonary edema, often associated with acute hypertensive episodes or cardiac decompensation.

Invasive measurement of the functional significance of coronary stenosis using pressure wire assessment.

Echocardiographic measurement of left ventricular systolic function calculated as the percentage change in chamber dimen...

The physiological principle that increased venous return leads to increased cardiac output through enhanced ventricular...

A validated risk assessment tool predicting mortality in patients with acute coronary syndromes.

A type of heart failure where the heart's pumping function appears normal but filling is impaired, also known as diastol...

Study of blood flow and pressure within the cardiovascular system, fundamental to cardiac catheterization and critical c...

Viable but chronically dysfunctional myocardial tissue that results from chronic ischemia and can recover function with...

Portable electrocardiographic device worn continuously for 24-48 hours to detect intermittent cardiac arrhythmias.