Methods
Ninety-five TAVI patients with severe aortic valve disease were studied. 85 patients were implanted baloon expandable valve and others self expanding valve were implanted.Electrocardiogram and echocardiography were obtained before and four weeks after TAVI. All 12 lead ECGs were recorded with the patient resting supine position. The QT intervals were taken to be from the onset of the QRS to the end of the T wave by a tangential method. QT intervals were corrected with Bazett’s formula(QTc=QT/RR). The echocardiograms were evaluated according to the recomandation of the American Society of Echocardiography.
Methods
Ninety-five TAVI patients with severe aortic valve disease were studied. 85 patients were implanted baloon expandable valve and others self expanding valve were implanted.Electrocardiogram and echocardiography were obtained before and four weeks after TAVI. All 12 lead ECGs were recorded with the patient resting supine position. The QT intervals were taken to be from the onset of the QRS to the end of the T wave by a tangential method. QT intervals were corrected with Bazett’s formula(QTc=QT/RR). The echocardiograms were evaluated according to the recomandation of the American Society of Echocardiography.
Results
The patients in the study group had one or more of the following symptoms; chest pain, syncope, or dyspnea on exertion, which necessitated aortic valve implantation. All patients had significant aortic stenosis, mean aortic valve gradient 46.1±12 and evidence of left ventricular hypertrophy, left ventricular mass index 259±72 g/m 2 . LVIDd, IVSd were not changed significantly after TAVI (p>0.05). QT dispersion, Corrected QT dispersion, mean aortic valve gradient were changed significantly after four weeks from TAVI (p<0.05).
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