Inhibition of left ventricular stimulation due to left ventricular lead failure and the left ventricular T-wave protection algorithm in patient with cardiac resynchronization therapy and pacemaker dependency

Andrzej Zabek, Barbara Małecka, Maciej Debski, Krzysztof Boczar, Jacek Lelakowski

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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.
Original languageEnglish
Article numbere12473
JournalAnnals of Noninvasive Electrocardiology
Early online date8 Jun 2017
Publication statusPublished - Jan 2018

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