Implantation depth measured by 64-slice computed tomography is associated with permanent pacemaker requirement following transcatheter aortic valve implantation with the Core Valve(®) system

Journal of cardiology
Jürgen KammlerClemens Steinwender

Abstract

Patients undergoing transcatheter aortic valve implantation (TAVI) are at increased risk for post-interventional conduction disturbances leading to pacemaker (PM) implantation. We analyzed the association between implantation depth within the left ventricular outflow tract (LVOT), measured by 64-slice computed tomography (CT), and 'index electrocardiographic (ECG) changes' (new onset atrioventricular-block grade II or III or left bundle branch block with PR interval prolongation >200ms). We evaluated patients who underwent TAVI with the Core Valve(®) revalving system (Medtronic, Minneapolis, MN, USA) for treatment of severe aortic stenosis at our department. Patients with a prior PM implantation and patients for whom no CT scan was available after 3 months were excluded from analysis. We assessed implantation depth of the prosthesis within the LVOT as possible risk factors for the development of post-interventional 'index ECG changes' resulting in PM implantation and compared it with individual patient data as well as echocardiographic and electrocardiographic parameters. The final study cohort comprised 53 patients for whom a 64-slice CT scan was available (mean age 81.7±5.1 years, 36% male). Twenty-eight of these finally unde...Continue Reading

References

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Citations

May 5, 2017·Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology·J López-AguileraJ Suárez de Lezo
Dec 1, 2020·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Christian ReiterClemens Steinwender
May 5, 2021·Journal of Cardiovascular Translational Research·Yuxi ZhaoZaiping Jing

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