No association between scar size and characteristics on T-wave alternans in post-myocardial infarction patients with relatively preserved ventricular function presented with nonsustained ventricular tachycardia

Yalin K., Golcuk E., Teker E., Yilmaz R. S., Dursun M., Bilge A. K., ...Daha Fazla

ANATOLIAN JOURNAL OF CARDIOLOGY, cilt.14, sa.5, ss.442-447, 2014 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 14 Sayı: 5
  • Basım Tarihi: 2014
  • Doi Numarası: 10.5152/akd.2014.4918
  • Dergi Adı: ANATOLIAN JOURNAL OF CARDIOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, CINAHL, EMBASE, MEDLINE, Directory of Open Access Journals, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.442-447
  • Anahtar Kelimeler: T wave alternans, cardiac magnetic resonance, delayed enhancement, arrhythmogenic mechanisms, MYOCARDIAL-INFARCTION, CARDIOVERTER-DEFIBRILLATOR, TISSUE HETEROGENEITY, RISK, ARRHYTHMIA, VISUALIZATION, PREDICTOR, MORTALITY, DEATH, ZONE
  • İstanbul Üniversitesi Adresli: Evet

Özet

Objective: Microvolt T-wave Alternans (TWA) is associated with abnormal repolarization and predicts arrhythmic mortality in patients with previous myocardial infarction (MI). Infarct tissue size and heterogeneity characterized by cardiac magnetic resonance (CMR) has been shown to be associated with arrhythmogenic substrates and sudden cardiac death. Although both delayed enhancement-CMR (de-CMR) and TWA are useful in risk stratification of post-MI patients with preserved left ventricular function, the relationship between scar size and TWA has not studied yet. In this study, we aimed to study the relation between TWA and scar size and characteristics assessed with CMR in post-MI patients (pts) with relatively preserved systolic function presented with nonsustained VT.