Table 2.

Heart diseases—keyword dictionary.

Categories	Keywords
Diseases	heart disease, cardiovascular disease, coronary artery disease, myocardial infarction, ischemic heart disease, angina, atherosclerosis, hypertensive heart disease, valvular heart disease, congenital heart disease, rheumatic heart disease, heart failure, cardiomyopathy, arrhythmia, atrial fibrillation, ventricular fibrillation, supraventricular tachycardia, bradycardia, heart murmur, pericarditis, endocarditis, myocarditis, Kawasaki disease, systemic lupus erythematosus, rheumatoid arthritis, giant cell myocarditis, viral myocarditis, dilated cardiomyopathy, hypertrophic cardiomyopathy, restrictive cardiomyopathy, blocked arteries, clogged arteries, heart blockage, heart attack, and cardiac arrest
Symptoms	chest pain, shortness of breath, fatigue, edema, high blood pressure, hypertension, palpitations, chest discomfort, chest tightness, heartache, breathlessness, labored breathing, heavy breathing, racing heart, rapid heartbeat, irregular heartbeat, skipped beats, swelling, and fluid retention
Treatments or procedures	coronary artery bypass graft, percutaneous coronary intervention, stent, echocardiogram, electrocardiogram, cardiac catheterization, cardiac magnetic resonance imaging, cardiac rehabilitation, bypass surgery, heart surgery, open-heart surgery, coronary bypass, bypass surgery, stent surgery, stent placement, balloon procedure, valve surgery, heart valve repair, valve replacement, cardiac rehabilitation, heart transplant, new heart, and artificial heart
Medications	beta-blockers, calcium channel blockers, angiotensin-converting enzyme inhibitors, diuretics, statins, antiplatelet medications, anticoagulants, angiotensin receptor blockers, blood thinners, clot-busting drugs, clot-preventing medication, blood pressure medicines, and cholesterol-lowering drugs
Medical devices	pacemaker, defibrillator, shock device, and electrical device
Medical specialties	cardiology, cardiologist, and cardiothoracic