Inappropriate subcutaneous implantable cardioverter-defibrillator therapy due to R-wave amplitude variation: Another challenge in device management
نویسندگان
چکیده
Syeda A. Batul, MD, Felix Yang, MD, FHRS, Karan Wats, MBBS, Suvash Shrestha, MBBS, Yisachar J. Greenberg, MD, FHRS From the Cardiology Division, Maimonides Medical Center, Brooklyn, New York, Department of Cardiac Electrophysiology, Montefiore Medical Center, Bronx, New York, Department of Cardiac Electrophysiology, Cardiology Division, and Department of Medicine, Maimonides Medical Center, Brooklyn, New York.
منابع مشابه
Implantable cardioverter-defibrillator in a patient with dextrocardia situs inversus
Background: Dextrocardia is a congenital anomaly, which may have coexistent coronary artery disease (CAD), arrhythmias and conventional indications for device therapy. However, the implantation of transvenous leads can be technically challenging and the approach needs to be tailored to the patient's individual anatomy. Case presentation: A 54-year-old male with dextrocardia situs inversus and i...
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Introduction The clinical benefits of implantable cardioverter-defibrillator (ICD) therapy have been widely documented in clinical studies of selected patient populations. Subcutaneous ICD (S-ICD) is a valid alternative to transvenous ICDinpatientswhodonot require cardiac resynchronization or antibradycardia or antitachycardia pacing, and has the additional advantage of avoiding possible acute ...
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We report the case of a 51-year-old patient with Brugada syndrome (BrS) who experienced inappropriate shock due to T-wave oversensing (TWOS) during exercise when the optimal sensing vector was selected based on the automatic analysis by a subcutaneous implantable cardioverter-defibrillator (S-ICD). After selecting another vector during exercise testing, TWOS did not re-occur. Selection of appro...
متن کاملRoutine exercise testing could not predict T‐wave oversensing in a patient after a subcutaneous implantable cardioverter‐defibrillator implant
Subcutaneous implantable cardioverter-defibrillators (S-ICDs) are susceptible to T-wave oversensing (TWOS) caused by high rate-dependent QRS-T morphology changes. We experienced an inappropriate S-ICD shock due to TWOS, which could not be predicted by routine exercise testing. A newly available high-pass filter might be effective for avoiding this.
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There have been reports of hyperkalemia-induced T-wave oversensing in patients with implantable cardioverter defibrillators (ICDs). However, a comparison of T-wave amplitudes and morphologies between the surface 12-lead electrocardiogram (ECG) and ICD electrogram has not been reported. We present the case of a 70-year-old man who received inappropriate ICD shocks due to hyperkalemia-induced T-w...
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