Cardiovascular Disease Glossary
100 terms total — 24 showing — Last updated 15 Sep 2026
Long QT syndrome
A genetic disorder of cardiac ion channels causing prolonged ventricular repolarization and risk of sudden death.
acute coronary syndrome
Umbrella term for conditions caused by sudden reduction in blood flow to the heart muscle.
arrhythmia
Any deviation from the normal heart rhythm, including irregular, fast, or slow heartbeats.
bradycardia
Abnormally slow heart rate, typically defined as fewer than 60 beats per minute in adults.
cardiac biomarkers
Blood proteins released when heart muscle is damaged, used to diagnose and monitor acute coronary syndromes.
cardiac cachexia
Severe weight loss and muscle wasting that occurs in advanced heart failure patients.
cardiac catheterization
Invasive procedure using catheters to diagnose and treat coronary artery and heart valve diseases.
cardiac output
The volume of blood pumped by the heart per minute, calculated as heart rate × stroke volume.
cardiac tamponade
Life-threatening compression of the heart due to fluid accumulation in the pericardial space, impeding cardiac filling.
cardiomyopathy
Disease of the heart muscle that affects the heart's ability to pump blood effectively.
cardiopulmonary resuscitation
Emergency procedure combining chest compressions and rescue breathing to maintain circulation during cardiac arrest.
cardioversion
Procedure to restore normal heart rhythm using electrical shock or medications.
coarctation of the aorta
A congenital narrowing of the aorta that can cause hypertension and left ventricular hypertrophy.
constrictive pericarditis
Chronic inflammation leading to pericardial scarring and restriction of cardiac filling and function.
diastolic heart failure
Heart failure with preserved ejection fraction where the heart muscle stiffens and cannot relax properly during filling.
dilated cardiomyopathy
A heart muscle disease characterized by ventricular chamber enlargement and reduced systolic function.
echocardiogram
Ultrasound examination of the heart to assess structure and function non-invasively.
endocarditis
Infection or inflammation of the inner lining of the heart chambers and valves, often caused by bacteria.
heart failure with preserved ejection fraction
Heart failure syndrome with normal or near-normal left ventricular systolic function.
heart team approach
Multidisciplinary consultation process involving cardiologists, cardiac surgeons, and other specialists to determine opt...
hibernating myocardium
Chronically ischemic but viable cardiac muscle that exhibits reduced contractility but retains potential for recovery wi...
Marfan syndrome
A genetic connective tissue disorder that commonly affects the cardiovascular system, particularly the aorta.
microvascular dysfunction
Impaired function of small coronary arteries causing angina symptoms despite normal large vessel coronary arteries.
myocardial infarction
Medical term for heart attack, referring to death of heart muscle tissue due to blocked blood flow.
myocardial stunning
Temporary mechanical dysfunction of heart muscle that persists despite restoration of normal coronary blood flow.