Microelectrode voltage mapping for substrate assessment in catheter ablation of ventricular tachycardia: A dual‐center experience

Antonio Dello Russo; Paolo Compagnucci; Marco BergontiLaura CipollettaQuintino ParisiGiovanni VolpatoGiulia SantarelliMichela ColonnelliJohan SaenenYari ValeriLaura CarboniProcolo MarcheseMarco MariniAndrea SarkozyAndrea NataleMichela Casella

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Microelectrode voltage mapping for substrate assessment in catheter ablation of ventricular tachycardia: A dual‐center experience

机译：Microelectrode voltage mapping for substrate assessment in catheter ablation of ventricular tachycardia: A dual‐center experience

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Abstract Introduction The assessment of the ventricular myocardial substrate critically depends on the size of mapping electrodes, their orientation with respect to wavefront propagation, and interelectrode distance. We conducted a dual‐center study to evaluate the impact of microelectrode mapping in patients undergoing catheter ablation (CA) of ventricular tachycardia (VT). Methods We included 21 consecutive patients (median age, 68 [12], 95% male) with structural heart disease undergoing CA for electrical storm (n?=?14) or recurrent VT (n?=?7) using the QDOT Micro catheter and a multipolar catheter (PentaRay, n?=?9). The associations of peak‐to‐peak maximum standard bipolar (BVc) and minibipolar (PentaRay, BVp) with microbipolar (BVμMax) voltages were respectively tested in sinus rhythm with mixed effect models. Furthermore, we compared the features of standard bipolar (BE) and microbipolar (μBE) electrograms in sinus rhythm at sites of termination with radiofrequency energy. Results BVμMax was moderately associated with both BVc (β?=?.85, p?

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《Journal of cardiovascular electrophysiology》 |2023年第5期|1216-1227|共12页
作者
Antonio Dello Russo; Paolo Compagnucci; Marco BergontiLaura CipollettaQuintino ParisiGiovanni VolpatoGiulia SantarelliMichela ColonnelliJohan SaenenYari ValeriLaura CarboniProcolo MarcheseMarco MariniAndrea SarkozyAndrea NataleMichela Casella;
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Department of Biomedical Sciences and Public Health,Marche Polytechnic University;

Department of Cardiology,University Hospital Antwerp;

Cardiology and Arrhythmology Clinic,University Hospital “Ospedali Riuniti”Cardiac Surgery Anesthesia and Critical Care Unit,University Hospital “Ospedali Riuniti”Mazzoni HospitalCardiology Divison,University Hospital “Ospedali Riuniti”;

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正文语种英语
中图分类人体生理学;
关键词
activation mapping; electroanatomical mapping; radiofrequency ablation; substrate mapping; ventricular tachycardia;

Microelectrode voltage mapping for substrate assessment in catheter ablation of ventricular tachycardia: A dual‐center experience

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