Int J Arrhythm.  2018 Mar;19(1):33-35. 10.18501/arrhythmia.2018.005.

Short-Long R-R Sequence Induced Implantable Cardioverter Defibrillator Shock by Dislodged Lead Even Having Normal Interrogation Parameter

Affiliations
  • 1Haeundae Paik Hospital, Department of Internal Medicine, Inje University College of Medicine, Busan, Korea. hacemed@hanmail.net

Abstract

Inappropriate shocks from an implantable cardioverter defibrillator (ICD) can cause potentially dangerous ventricular arrhythmias and impaired quality of life. We describe a case in which a dislodged lead caused inappropriate ICD shocks through simultaneous sensing of atrial and ventricular signals. Interestingly, repeated short-long R-R sequences were recorded, but ICD interrogation parameters were usually unchanged.

Keyword

Defibrillators; Implantable; Lead

MeSH Terms

Arrhythmias, Cardiac
Defibrillators*
Quality of Life
Shock*
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