Inhibition of left ventricular stimulation due to left ventricular lead failure and the left ventricular T-wave
Andrzej Ząbek1, Barbara Małecka1,2, Maciej Dębski1
1Department of Electrocardiology, The John Paul II Hospital, Kraków, Poland.
Abstract:
The electrocardiogram (ECG) interpretation in patients with cardiac resynchronization therapy (CRT) is often a perplexing problem. The difficulty in the device evaluation increases in the presence of unfamiliar timing cycles and a lead dysfunction. Authors describe a special function of a Biotronik CRT devices called the left ventricle T-wave protection (LVTP), and demonstrate its behavior in a patient with left ventricular (LV) lead failure. This report shows that sometimes it might be difficult to understand the loss of resynchronization in 12-lead ECG when LVTP feature is on, and a malfunction of left ventricular lead sensing occurs.
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