Clinical and electrocardiographic predictors of T wave oversensing in patients with subcutaneous ICD

Abstract Background T wave oversensing (TWOS) is a major drawback of the subcutaneous implantable cardioverter defibrillator (S-ICD). Data on predictors of TWOS in S-ICD recipients are limited. We sought to investigate predictors of TWOS in a cohort of patients receiving an S-ICD at our institution....

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Bibliographic Details
Published in:	Journal of arrhythmia 2016-06, Vol.32 (3), p.181-185
Main Authors:	El-Chami, Mikhael F., MD, Harbieh, Bernard, MD, Levy, Mathew, BS, Leon, Angel R., MD, Merchant, Faisal M., MD
Format:	Article
Language:	eng
Subjects:	Age Automation Cardiac arrhythmia Cardiovascular Cardiovascular disease Comparative analysis Coronary vessels Electrocardiogram Electrocardiography Gender Implants, Artificial Inappropriate shocks Medical records Medical research Medicine, Experimental Original Patients Prosthesis Standard deviation Studies Subcutaneous ICD T wave oversensing Transplants & implants
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Summary:	Abstract Background T wave oversensing (TWOS) is a major drawback of the subcutaneous implantable cardioverter defibrillator (S-ICD). Data on predictors of TWOS in S-ICD recipients are limited. We sought to investigate predictors of TWOS in a cohort of patients receiving an S-ICD at our institution. Methods S-ICD recipients at our center were identified retrospectively and stratified based on the presence or absence of TWOS. Clinical and electrocardiographic parameters were collected and compared between the 2 groups. Results Ninety-two patients underwent an S-ICD implantation at our institution between April 2010 and January 2015. Six (6.5%) patients had TWOS. These patients were younger (38.1±13.7 vs. 52.3±16.1 years, p =0.04) and had higher left ventricle ejection fractions (48.5±14.9% vs. 28.4±12.2%, p
ISSN:	1880-4276 1883-2148