Coronary artery spasm as a cause of ST elevation and inappropriate implantable cardioverter defibrillator intervention

J Cardiovasc Med (Hagerstown). 2007 Dec;8(12):1055-7. doi: 10.2459/JCM.0b013e328058ed8c.

Abstract

Coronary artery spasm can cause both brady- and tachyarrhythmia, through induction of AV block (usually linked to coronary spasm of the right coronary artery) or ventricular tachycardia/fibrillation linked to extensive myocardial ischemia. The electrocardiographic aspect of coronary artery spasm is an ST segment elevation. We describe the case of patient implanted with an implantable cardioverter defibrillator (ICD) for unexplained syncope which, during coronary artery spasm, received an inappropriate device firing due to ST segment elevation, leading to a double count of the QRS by the ICD.

Publication types

  • Case Reports

MeSH terms

  • Coronary Angiography
  • Coronary Vasospasm / complications*
  • Coronary Vasospasm / diagnostic imaging
  • Coronary Vasospasm / physiopathology
  • Coronary Vasospasm / therapy
  • Defibrillators, Implantable / adverse effects*
  • Electrocardiography
  • Electrophysiologic Techniques, Cardiac
  • Humans
  • Male
  • Middle Aged
  • Myocardial Ischemia / diagnostic imaging
  • Myocardial Ischemia / etiology*
  • Myocardial Ischemia / physiopathology
  • Myocardial Ischemia / therapy
  • Prosthesis Failure
  • Syncope / diagnostic imaging
  • Syncope / etiology*
  • Syncope / physiopathology
  • Syncope / therapy
  • Tachycardia, Ventricular / diagnostic imaging
  • Tachycardia, Ventricular / etiology
  • Tachycardia, Ventricular / physiopathology
  • Tachycardia, Ventricular / therapy*
  • Treatment Outcome
  • Ventricular Fibrillation / diagnostic imaging
  • Ventricular Fibrillation / etiology
  • Ventricular Fibrillation / physiopathology
  • Ventricular Fibrillation / therapy*