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Cardiology is the branch of medicine pertaining to the heart and the vascular system of the human body. Its a subespeciality (fellowship) of Internal Medicine.

Contents 1 Cardiac pacemaker (Electrical system of the heart) 2 Basic cardiac physiology 3 Disorders of the coronary circulation 4 Sudden cardiac death (The abrupt cessation of blood flow, leading to death) 4.1 Treatment of sudden cardiac death 5 Disorders of the myocardium (muscle of the heart) 6 Disorders of the pericardium (outer lining of the heart) 7 Disorders of the heart valves 8 Disorders of the electrical system of the heart (Cardiac electrophysiology) 9 Inflammation and infection of the heart 10 Congenital heart disease 11 Diseases of blood vessels (Vascular diseases) 12 Procedures done for coronary artery disease 13 Devices used in cardiology 14 Diagnostic tests and procedures 15 Cardiac pharmaceutical agents 16 See also 17 External links

• Electrical conduction system of the heart
  • Action potential
    • Ventricular action potential
• Sinoatrial node
• Atrioventricular node
• Bundle of His
• Purkinje fibers

• Systole
• Diastole
• Heart sounds
• Preload
• Afterload
• Kussmaul's sign

• Atherosclerosis
• Restenosis
• Coronary heart disease (Ischaemic heart disease, Coronary artery disease)
• Acute coronary syndrome
  • Angina
  • Myocardial infarction (Heart attack)

• Cardiac arrest

• Cardiopulmonary resuscitation (CPR)

• Cardiomyopathy
  • Ischemic cardiomyopathy
  • Nonischemic cardiomyopathy
    • Amyloid cardiomyopathy
    • Hypertrophic cardiomyopathy (HCM)
      • Hypertrophic obstructive cardiomyopathy (HOCM) (Idiopathic hypertrophic subaortic stenosis (IHSS))
      • Apical hypertrophic cardiomyopathy
    • Dilated cardiomyopathy
      • Alcoholic cardiomyopathy
      • Tachycardia induced cardiomyopathy
      • Takotsubo cardiomyopathy (Transient apical ballooning, stress-induced cardiomyopathy)
    • Arrhythmogenic right ventricular dysplasia (Arrhythmogenic right ventricular cardiomyopathy)
    • Restrictive cardiomyopathy
• Congestive heart failure
  • Cor pulmonale
• Ventricular hypertrophy
  • Left ventricular hypertrophy
• Primary tumors of the heart
  • Myxoma
• Myocardial rupture

• Pericarditis
• Pericardial tamponade
• Constrictive pericarditis

• Aortic valve disorders
  • Aortic insufficiency
  • Aortic stenosis
  • Aortic valve replacement
  • Aortic valve repair
  • Aortic valvuloplasty
• Mitral valve disorders
  • Mitral valve prolapse
  • Mitral regurgitation
  • Mitral stenosis
  • Mitral valve replacement
  • Mitral valve repair
  • Mitral valvuloplasty
• Pulmonary valve disorders
  • Congenital pulmonic stenosis
• Tricuspid valve disorders

• Tachycardia
• Cardiac arrhythmias
  • Supraventricular tachycardia (Fast rhythms that originate above the ventricles)
    • Atrial fibrillation
    • Atrial flutter
    • Atrial tachycardia
    • Sick sinus syndrome (Tachy-Brady syndrome)
    • AV nodal reentrant tachycardia (AVNRT)
    • AV reentrant tachycardia (AVRT)
  • Bigeminy
  • Premature ventricular contraction
  • Ventricular tachycardia
    • Torsades de pointes
  • Ventricular fibrillation
  • Sick sinus syndrome
  • Bundle branch block
    • Left bundle branch block
    • Right bundle branch block
  • Heart block
    • First degree AV block
    • Second degree AV block
    • Bifascicular block
    • Trifascicular block
    • Third degree AV block
      • Lev's disease
• Specific diseases of the electrical system of the heart
  • Brugada syndrome
  • Long QT syndrome
    • Andersen-Tawil syndrome
    • Romano-Ward syndrome
    • Jervell and Lange-Nielsen syndrome
  • Short QT syndrome
  • Wolff-Parkinson-White syndrome (WPW syndrome)

• Endocarditis
  • Rheumatic heart disease
• Myocarditis
• Pericarditis

• Atrial septal defect
• Ventricular septal defect
• Patent ductus arteriosus
• Bicuspid aortic valve
• Tetralogy of Fallot
• Transposition of the great vessels (TGV)
• Hypoplastic left heart syndrome

• Vasculitis
• Atherosclerosis
• Aneurysm
• Varicose veins
• Economy class syndrome
• Diseases of the aorta
  • Coarctation of the aorta
  • Aortic dissection
• Diseases of the carotid arteries
  • Carotid artery disease
  • Carotid artery dissection

• Percutaneous coronary intervention
  • Atherectomy
  • Angioplasty (PTCA)
  • Stenting
• Coronary artery bypass surgery (CABG)
• Enhanced external counterpulsation (EECP)

• Stethoscope
• Devices used to maintain normal electrical rhythm
  • Pacemaker
  • Defibrillator
    • Automated external defibrillator
    • Implantable cardioverter-defibrillator
• Devices used to maintain blood pressure
  • Artificial heart
  • Heart-lung machine
  • Intra-aortic balloon pump
  • Ventricular assist device

• Blood tests
• Echocardiogram
• CMR
• Cardiac stress test
• Auscultation (Listening with the Stethoscope)

Electrocardiogram (ECG or EKG)

• • QT interval
  • Osborn wave
• Ambulatory Holter monitor
• Electrophysiologic study
  • Programmed electrical stimulation
• Sphygmomanometer (Blood pressure cuff)
• Cardiac enzymes
• Coronary catheterization
  • Myocardial Fractional Flow Reserve (FFRmyo)
  • IVUS (IntraVascular UltraSound)

The followings are medications commonly prescribed in cardiology:

• Antiarrhythmic agents
  • Type I (sodium channel blockers)
    • Type Ia
      • Quinidine
    • Type Ib
      • Lidocaine
      • Phenytoin
    • Type Ic
      • Propafenone
  • Type II (beta blockers)
    • Metoprolol
  • Type III (potassium channel blockers)
    • Amiodarone
    • Dofetilide
    • Sotalol
  • Type IV (slow calcium channel blockers)
    • Diltiazem
    • Verapamil
  • Type V
    • Adenosine
    • Digoxin
• ACE inhibitors
  • Captopril
  • Enalapril
  • Perindopril
  • Ramipril
• Angiotensin II receptor antagonists
  • Candesartan
  • Eprosartan
  • Irbesartan
  • Losartan
  • Telmisartan
  • Valsartan
• Beta blocker
• Calcium channel blocker

• Interventional cardiology
• Clinical cardiac electrophysiology
• Heart Failure Society of America

• Cardiology News
• European Society of Cardiology
• U.S. National Institute of Health (NIH)
• American College of Cardiology
• American Heart Association
• National Heart Foundation Australia
• Coronary heart disease
• Virtual Cardiac Centre - latest comprehensive information on the field of Cardiology.
• Cardiovascular Physiology - comprehensive explanation of basic concepts in cardiology.
• Preventive Cardiology
• A cardiac atlas using CMR images

v • d • e Health science > Medicine > Medical specialties
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Internal medicine	Cardiology • Endocrinology • Gastroenterology • Hematology • Hepatology • Infectious diseases • Intensive care medicine • Nephrology • Oncology • Proctology • Pulmonology • Rheumatology • Urology
Diagnostic	Clinical laboratory sciences (Cellular pathology, Clinical chemistry, Hematology, Clinical microbiology, Clinical immunology, Transfusion medicine) • Radiology (Interventional radiology, Nuclear Medicine) • Pathology (Anatomical, Clinical) • Clinical neurophysiology
Other specialties	Allergy and immunology • Dermatology • Disaster medicine • Emergency medicine • General practice • Geriatrics • Infectious disease • Neurology • Obstetrics and Gynaecology (Fertility medicine, Reproductive medicine) • Occupational medicine • Ophthalmology • Palliative care • Pediatrics • Physical medicine and rehabilitation (Physiatry) • Preventive medicine • Psychiatry •
Interdisciplinary	Allopathic medicine • Epidemiology • Hospital medicine • Medical genetics • Osteopathic medicine • Pharmacy • Physician (M.D. and D.O.) • Physician Assistant • Public health • Sports medicine

v • d • e Cardiovascular system
Blood  |  Heart  → Aorta → Arteries → Arterioles → Capillaries → Venules → Veins → Vena cava → Heart → Pulmonary arteries → Lungs → Pulmonary vein