Karotis Arter Darlıklı Hastalarda Stentleme Sonrası 12 Kanallı Yüzey Elektrokardiyografi ile QT Dispersiyonunun Değerlendirilmesi

Abstract

AMAÇ: Karotis arter stentleme, ciddi karotis darlığında etkili bir tedavi yöntemi olmasıyla birlikte, işlem sırasında veya hemen sonrasında görülen otonomik fonksiyonlardaki değişikliklere neden olabilir. Bu çalışmada, karotis arter stentleme sonrasında QT sürelerinin 12 kanallı yüzey elektrokardiyografi ile değerlendirilmesi amaçlandıYÖNTEMLER: Çalışmamıza hipertansiyon, diyabet, ciddi koroner arter ve valvüler kalp hastalığı hikâyesi olmayan ve karotis arter stentleme için uygun olan hastalar (29 erkek, 12 kadın) alındı. İşlem öncesi, işlemden hemen sonra ve 24. saat 12 kanallı yüzey elektrokardiyografi kayıtları elde edildi. QT maksimum, minimum ve dispersiyon süreleri çift kör gözlemciler tarafından analiz edildi. Üç ayrı düzeltilmiş QT süresi Bazett's formülüne göre belirlendi. Sonuçlar Friedman ve Wilcoxon testleri kullanılarak istatistiksel olarak analiz edildi.BULGULAR: QT maksimum ve dispersiyon değerleri işlemden hemen sonra anlamlı olarak azalmış ve 24. saat kayıtlarında düşük seviyelerde devam etmiştir, sırasıyla (455±44/58±11, 440±46/37±10 ve 450±44/48±10 ms, p değeri

Keywords

• Karotis arter stentleme, QT dispersiyonu; elektrokardiyografi

Evaluation of QT Dispersion by 12-Lead Surface Electrocardiography Affer Stenting in Patients with Carotid Artery Stenosis

Abstract

OBJECTIVE: Although carotid artery stenting (CAS) is an effective treatment for severe carotid stenosis, it has been associated with alterations in autonomic functions during or shortly after the procedure. The aim of this study was to investigate QT durations on 12-lead surface electrocardiography after CAS.METHODS: Patients (29 male, 12 female) that are suitable for CAS, without a history of hypertension, diabetes mellitus, severe coronary artery or valvular heart disease, were enrolled to our study. 12-lead surface electrocardiography recordings were obtained at the beginning, immediately after and at the 24 hour of the procedure. QT maximum, minimum and dispersion durations were analyzed by double blinded observers. Three distinct corrected QT intervals were determined according to Bazett's formula. Results were statistically analyzed using Friedman and Wilcoxon tests.RESULTS: The QT maximum and dispersion values were significantly decreased immediately after the procedure and continued with low levels at 24 hour recordings, respectively (455±44/58±11, 440±46/37±10, and 450±44/48±10 ms, p value

Keywords

• Carotid artery stenting, QT dispersion; electrocardiography

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