Sudden cardiac death causes

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Sara Zand, M.D.[2]

Overview

Sudden cardiac arrest may be caused by coronary artery abnormality such as coronary atherosclerosis, acute MI, coronary artery embolism, coronary arteritis , hypertrophy of myocardium such as HCM, hypertensive heart disease, primary or secondary pulmonary hypertension , myocardial disease such as ischemic cardiomyopathy, non-ischemic cardiomyopathy, myocarditis ,valvular heart disease such as aortic stenosis, aortic insufficiency, mitral valve prolapse, endocarditis , congenital heart disease such as congenital septal defect with eisenmenger physiology , abnormality in conducting system such as Wolf-Parkinson-White syndrome , electrical instability such as (CPVT, LQTS)

Causes

Sudden cardiac arrest may be caused by :

• Coronary artery abnormality such as coronary atherosclerosis, acute MI, coronary artery embolism, coronary arteritis

• Hypertrophy of myocardium such as HCM, hypertensive heart disease, primary or secondary pulmonary hypertension
• Myocardial disease such as ischemic cardiomyopathy, non-ischemic cardiomyopathy, myocarditis

• Valvular heart disease such as aortic stenosis,aortic insufficiency, mitral valve prolapse, endocarditis

• Congenital heart disease such as congenital septal defect with Eisenmenger physiology
• Abnormality in conducting system such as Wolf-Parkinson-White syndrome
• Electrical instability such as (CPVT, LQTS)

The items: ❑ a ❑ b ❑ c ❑ d ❑ e

Causes of Sudden Death Including Sudden Cardiac Death by Organ System

Cardiovascular	Amyloid cardiopathy, Congestive heart failure, Ventricular rupture,
Ischemic	Hypoxia, Coronary thrombosis, Coronary vasospasm, Coronary artery aneurysm, Prinzmetal's variant angina ,
Pericardial	Cardiac tamponade,
Myocardial	Asymmetric septal hypertrophy , ST Elevation Myocardial Infarction, Dilated cardiomyopathy, Giant cell myocarditis , Hypertrophic cardiomyopathy, Kugel-Stoloff syndrome , Myocardial infarction, Myocarditis, Rupture of the papillary muscles,
Endocardial/Valvular	Mitral valve prolapse, Valvular aortic stenosis/insufficiency, Mitral valve disruption, Endocarditis, Prosthetic valve dysfunction,
Conduction/Arrhythmia	Arrhythmogenic right ventricular cardiomyopathy, Arrhythmogenic right ventricular dysplasia, Brugada syndrome, Jervell and Lange-Nielsen Syndrome, Prolonged Q-T Interval Syndrome, Multifocal ventricular premature beats , Naxos disease , Romano-Ward syndrome , Sick sinus syndrome, Short QT syndrome , Sinus node disease, Stokes-Adams Syndrome, Sudden Arrhythmia Death Syndrome, Wolf-Parkinson-White syndrome,
Vascular	Acute aortic insufficiency, Acute coronary syndrome, Aortic dissection, Aortic stenosis, Aorto-ventricular tunnel, Arteritis, Coronary artery disease, Coronary arteries - congenital malformation , Ruptured abdominal aortic aneurysm,
Congenital/Developmental	Congenital aortic or pulmonary valve stenosis, Congenital septal defect with eisenmenger physiology, Congenital heart block , Congenital Long QT syndrome, Noncompaction Cardiomyopathy, Sudden Infant Death Syndrome, Uhl anomaly
Chemical / poisoning	Snake bite
Dermatologic	No underlying causes
Drug Side Effect	Agalsidase beta, Articaine, caspofungin acetate, Clozapine, cytomegalovirus immune globulin, Drug allergy, drug overdose, Dornase Alfa, ferumoxytol, Flucytosine, galsulfase, Iodixanol, laronidase, Lincomycin Hydrochloride, Polidocanol, Potassium bicarbonate, pramipexole, prednisolone, Ramucirumab, Calcium gluconate, Dextran, Tiagabine
Ear, Nose, Throat	No underlying causes
Endocrine	Diabetic ketoacidosis - typically from undiagnosed diabetes, Thyrotoxicosis,
Environmental	Hypothermia,
Gastroenterologic	Appendicitis, Gastrointestinal bleeding, Retroperitoneal bleed,
Genetic	Brugada syndrome, 3-methylglutaconic aciduria, type 1, Familial dilated cardiomyopathy , Familial hypertrophic cardiomyopathy 1, Hyperbilirubinemia transient, familial neonatal, Marfan syndrome , Timothy syndrome
Hematologic	No underlying causes
Iatrogenic	Transfusion reaction
Infectious Disease	Flu mainly in the elderly, infants, infirm or chronically ill, Neurocysticercosis , Lyme disease
Musculoskeletal / Ortho	No underlying causes
Neurologic	Apoplexy, Encephalitis, Intracranial hemmorhage, Meningitis, Stroke, Subarachnoid hemorrhage,
Nutritional / Metabolic	3-methylglutaconic aciduria, type 1, Alpha-ketoglutarate dehydrogenase deficiency , Food allergy
Obstetric/Gynecologic	Amniotic fluid syndrome , Childbirth hemorrhage,
Oncologic	Atrial myxoma, familial
Opthalmologic	No underlying causes
Overdose / Toxicity	Opioid overdose , Oxycontin overdose, Pain killer overdose , Sleeping pill overdose
Psychiatric	No underlying causes
Pulmonary	Hypercapnia, Pickwickian Syndrome, Pulmonary embolism, Tension pneumothorax, Status asthmaticus
Renal /Electrolyte	Hypercalcemia, Hypokalemia, Hyperkalemia,
Rheumatology / Immune / Allergy	Amyloidosis, Anaphylaxis, Myasthenia gravis, Sarcoidosis,
Sexual	No underlying causes
Trauma	Commotio cordis, Homicide, Motor Vehicle accident
Urologic	No underlying causes
Miscellaneous	Shock, Asphyxia, Insect bite Sepsis syndrome, Shock

Differentiating sudden cardiac death from non-cardiac causes

Cardiac causes of sudden death

Non cardiac causes of sudden death:

Acute aortic insufficiency Acute coronary syndrome Aortic dissection Aortic stenosis Arrhythmogenic right ventricular dysplasia Brugada syndrome Cardiac tamponade Cardiomyopathy Catecholaminergic polymorphic ventricular tachycardia Commotio cordis Complete heart block Congenital heart disease Congestive heart failure Coronary artery disease Dilated cardiomyopathy Hypertrophic cardiomyopathy Jervell and Lange-Nielsen syndrome Long QT syndrome, both congenital and acquired Lyme disease Mitral valve prolapse Myocarditis Naxos disease Noncompaction Cardiomyopathy Papillary muscle rupture Prolonged Q-T Interval Syndrome Pulmonary embolism Romano-Ward syndrome Ruptured abdominal aortic aneurysm Prosthetic valve dysfunction Short QT syndrome Short QT syndrome type 1 Short QT syndrome type 2 Short QT syndrome type 3 Short QT syndrome type 4 Short QT syndrome type 5 Sick sinus syndrome ST Elevation Myocardial Infarction Stokes-Adams Syndrome Sudden Infant Death Syndrome Timothy syndrome Uhl anomaly Valvular Heart Disease Ventricular rupture Wolf-Parkinson-White syndrome with rapid conduction Commotio cordis-blunt chest trauma Sudden death during extreme physical activity

3-methylglutaconic aciduria, type 1 Alpha-ketoglutarate dehydrogenase deficiency Amniotic fluid syndrome Arterial dissections with lentiginosis Anaphylaxis Aneurysm Apoplexy Appendicitis Asphyxia Birth injury Bleeding excessive Childbirth hemorrhage Diabetic ketoacidosis - typically from undiagnosed diabetes Drug allergy Drug overdose Encephalitis Fetal death Food allergy Gastrointestinal bleeding Homicide Hyperbilirubinemia transient, familial, neonatal Hypercalcemia Hypercapnia Hyperkalemia Hypokalemia Hypoxia Injury Insect bite Intracranial hemmorhage Marfan syndrome Meningitis Meningococcal disease Motor Vehicle accident Myasthenia Gravis Neurocysticercosis Opioid overdose Oxycontin overdose Pain killer overdose Pickwickian Syndrome Poisoning Pulmonary embolism Retroperitoneal bleed Sepsis syndrome Shock Sleep apnea Snake bite Status asthmaticus Stillbirth Stroke Subarachnoid hemorrhage Sudden Infant Death Syndrome Suicide Sleeping pill overdose Toxic/metabolic disturbances Tranquilizer addiction Tension pneumothorax Toxic/metabolic disturbances Thyrotoxicosis Toxic shock syndrome Transfusion reaction Venom