Paradoxical pacing spikes during a wide complex tachycardia in biventricular defibrillator. What is the mechanism? Is it undersensing due to troubleshooting?

Journal of Arrhythmia

卷:38

Eleni‐Evangelia Koufou¹  Rafail Koros¹  Georgios Leventopoulos¹  Periklis Davlouros¹  Angelos Perperis¹ 

[1] University Hospital of Patras Cardiology Department Patras Greece;

关键词: defibrillator function;    paradoxical pacing;    resynchronization therapy;    wide complex tachycardia;   

DOI  :  10.1002/joa3.12688

来源: DOAJ

【 摘 要 】

We present the case of a 68‐year‐old man with a cardiac resynchronization therapy‐defibrillator Medtronic device implanted 3 years ago, admitted to our hospital due to a wide complex tachycardia with unexpected pacing spikes inside QRS complexes. Although that could be easily attributed to ventricular undersensing, more complicated mechanisms are involved, including the origin of the tachycardia, the parameters of the device, and the position of the device and the leads.

【 授权许可】

Unknown