Impact of T Wave Amplitude in Lead Avr on Predicting Appropriate Therapies in Hypertrophic Cardiomyopathy Patients With An Implantable Cardioverter Defibrillator

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Küçük Resim

Tarih

2018

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Trakya Üniversitesi

Erişim Hakkı

info:eu-repo/semantics/openAccess

Özet

Aims: Although implantable cardioverter defibrillator reduces mortality in hypertrophic cardiomyopathy patients,inappropriate implantable cardioverter defibrillator shocks are related to increased mortality. The aim of this studyis to investigate whether a new electrocardiographic marker of T wave amplitude in lead aVR can be used to predictappropriate therapy of implantable cardioverter defibrillator (shock or anti-tachycardia pacing) in hypertrophic cardiomyopathypatients.Methods: Thirty-six hypertrophic cardiomyopathy patients, who were admitted to the outpatient clinic for pacemakercontrol, with implantable cardioverter defibrillator were retrospectively examined (mean age: 51 ± 10.2 years,72.2% male). The primary endpoint was appropriate implantable cardioverter defibrillator therapy. All hematological,biochemical and electrocardiogram parameters were measured before implantable cardioverter defibrillator wasimplanted.Results: Over a median follow-up period of 33 months, 9 (25%) patients experienced appropriate implantablecardioverter defibrillator therapy. Heart rate and QRS interval were similar between groups. QT and QTc valueswere higher in patients that received appropriate shocks. Patients who have T wave inversion were higher in therapypositive group. T wave amplitude in lead aVR values were significantly associated with appropriate therapy.Conclusion: Using simple ECG parameters, we may predict arrhythmic episodes before ICD implantation and animprovement of the medical antiarrhythmic therapy might be protective for HCM patients with ICD.

Açıklama

Anahtar Kelimeler

Hypertrophic, cardiomyopathy, defibrillator, electrocardiography

Kaynak

Turkish Medical Student Journal

WoS Q Değeri

Scopus Q Değeri

Cilt

5

Sayı

1

Künye