Sudden cardiac death

From WikiLectures

Ventricular tachycardia - scheme
Ventricular fibrillation - scheme

Sudden cardiac death (sudden cardiac death) is a natural death from a cardiac cause that occurs within one hour of the onset of symptoms and the time and manner of death is unexpected. Heart disease may or may not be previously known[1][2].

In 85% of cases, NSS occurs as a result of malignant arrhythmia (ventricular fibrillation, ventricular tachycardia)[3].

Causes[edit | edit source]

Based on ECG analysis of resuscitated patients, NSS is believed to be caused by:

  • ventricular fibrillation (often preceded by ventricular tachycardia) - no.,
  • electromechanical dissociation',
  • asystole.
The most common causes of NSS[4][5][6]
He is sick with structural heart disease Patients without structural heart disease
CHD (acute ischemia, scar after MI) Long QT Syndrome
Hypertrophic cardiomyopathy Wolff-Parkinson-White syndrome
Idiopathic dilated cardiomyopathy Idiopathic ventricular fibrillation (Brugado syndrome catecholamine-dependent familial polymorphic ventricular tachycardia syndrome?)
Arrhythmogenic right ventricular cardiomyopathy
Valvular defects
Inflammatory heart diseases
Coronary artery spasm
Congenital heart defects (Tetralogy of Fallot, transposition of great vessels, aortic stenosis, pulmonary vascular obstruction)
Presence of myocardial bridges

In the context of malignant arrhythmias, cocaine, antiarrhythmics and hypomagnesemia can have a proarrhythmogenic effect.

Treatment[edit | edit source]

Primary prevention[edit | edit source]

In high-risk patients, the most effective primary prevention is ICD implantation[5].

Links[edit | edit source]

Related Articles[edit | edit source]

References[edit | edit source]

  1. PRIORI, SG. Task Force on Sudden Cardiac Death of the European Society of Cardiology. Eur Heart J. 22, vol. 16, p. 1374-450, ISSN 1522-9645. PMID: 11482917.
  2. MEYERBURG, R. Braunwald Textbook of Heart Disease. 6. edition. 2001. ISBN 9781416041078.
  3. HUIKURI HEIKKI, V. Sudden death due to cardiac arrhythmias. N Engl J Med. 2001, y. 345, vol. 20, p. 1473–1482, ISSN 1533-4406. 
  4. ASCHERMANN, Michael. Cardiology. 1. edition. Galen, 2004. pp. 1183-1185. ISBN 80-7262-290-0.
  5. a b
  6. BRUGADA, P – BRUGADA, J. Right bundle branch block, persistent ST segment elevation and sudden cardiac death: a distinct clinical and electrocardiographic syndrome. A multicenter report. J Am Coll Cardiol. 20, vol. 6, p. 1391-6, ISSN 0735-1097. PMID: 1309182.

References[edit | edit source]

  • ASCHERMANN, Michael. Kardiologie. 1. edition. Galen, 2004. pp. 1183-1185. ISBN 80-7262-290-0.