Dispersion of QT interval in premature ventricular beats is not an independent marker for inducible sustained ventricular tachycardia

Year 2006, Volume: 59 Issue: 1, 7 - 10, 01.01.2006

Fatih Sinan Ertaş , Çağdaş Özdöl Timuçin Altın Yusuf Atmaca Ömer Akyürek Remzi Karaoğuz Güneş Akgün Muharrem Güldal Editörden Çetin Erol

https://doi.org/10.1501/Tipfak_0000000178

https://izlik.org/JA39ES57FC

Abstract

Keywords

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Ventriküler prematüre atımların QT interval dispersiyonu indüklenebilir sürekli ventriküler takikardi için bağımsız bir gösterge değildir

https://izlik.org/JA39ES57FC

Abstract

Amaç: 12 derivasyonlu EKG nin farklı derivasyonları arasında QT interval süresinde değişkenlik
birçok klinik durumda ventriküler aritmiler için bir risk göstergesi olarak öngörülürken, QTd-V nin
değeri henüz açık değildir. Çalışmanın amacı reentran ventriküler takiaritmilere (VT) duyarlılığı
olan hastaları belirlemede ventriküler premature atımlarda QT dispersiyonu’nun (QTd-V) değerini
araştırmaktır.
Gereç ve Yöntem: Elektrofizyolojik çalışma yapılmış 34 hastada indüklenebilir VT nin tahmini için
prekordiyal QTd-V, sinyal ortalamalı EKG de geç potansiyeller ve azalmış sol ventrikül ejeksiyon
fraksiyonu karşılaştırıldı.
Bulgular: İndüklenebilir VT li 12 hastadaki QTd-V (110±50 msec) VT nin indüklenemediği 22 hastadaki
QTd-V den (65±38 msec, p=0.006) daha büyük bulundu. Ejeksiyon fraksiyonu ve geç potansiyel
varlığının dahil edildiği çok değişkenli analiz QTd-V nin ventriküler takiaritmilere duyarlı
hastaları belirlemede bağımsız bir faktör olmadığını gösterdi.
Sonuç: Artmış QTd-V tek başına reentran ventriküler takiaritmilere duyarlılıkla ilintili olsa da, geç
potansiyeller ve sol ventrikül ejeksiyon fraksiyonu hesaba katıldığında ilave tanısal bilgi sağlamadığı
gözükmektedir.

Keywords

QT dispersiyon , ventriküler prematüre atım , elektrofizyolojik çalışma

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