Ventricular oversensing of atrial electrical activity that inhibits VVI pacemaker and causes syncope

Authors

  • Elibet Chávez González Servicio de Electrofisiología Cardíaca Clínica y Estimulación. Cardiocentro Ernesto Che Guevara. Santa Clara, Villa Clara, Cuba.
  • Alain Alonso Herrera Unidad de Cuidados Intensivos Posquirúrgicos. Cardiocentro Ernesto Che Guevara. Santa Clara, Villa Clara, Cuba.

Abstract

Far-field oversensing of atrial electrical activity caused by a VVI pacemaker is a rare phenomenon; however, it may have serious clinical consequences. It has several causes and its timely identification may avoid a possible ventricular asystole. This article reports the case of a 72-year-old male who had a Biotronik Axios SR pacemaker implanted, in VVIR mode, six years ago, due to blocked atrial fibrillation. He suffered syncope due to pacemaker inhibition caused by ventricular oversensing of atrial electrical activity.

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Published

2015-07-13

How to Cite

1.
Chávez González E, Alonso Herrera A. Ventricular oversensing of atrial electrical activity that inhibits VVI pacemaker and causes syncope. CorSalud [Internet]. 2015 Jul. 13 [cited 2025 Jun. 23];7(3):235-9. Available from: https://revcorsalud.sld.cu/index.php/cors/article/view/64

Issue

Vol. 7 No. 3 (2015)

Section

CASE REPORTS

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