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Curso de Atualização em Medicina Cardiovascular 2019
Reunião Anual Conjunta dos Grupos de Estudo de Cirurgia Cardíaca, Doenças Valvulares e Ecocardiografia da SPC
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A. Basics
B. Imaging
C. Arrhythmias and Device Therapy
D. Heart Failure
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01. History of Cardiology
02. Clinical Skills
03. Imaging
04. Arrhythmias, General
05. Atrial Fibrillation
06. Supraventricular Tachycardia (non-AF)
07. Syncope and Bradycardia
08. Ventricular Arrhythmias and Sudden Cardiac Death (SCD)
09. Device Therapy
10. Chronic Heart Failure
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12. Coronary Artery Disease (Chronic)
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20. Congenital Heart Disease and Pediatric Cardiology
21. Pulmonary Circulation, Pulmonary Embolism, Right Heart Failure
22. Aortic Disease
23. Peripheral Vascular and Cerebrovascular Disease
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28. Risk Factors and Prevention
29. Rehabilitation and Sports Cardiology
30. Cardiovascular Disease in Special Populations
31. Pharmacology and Pharmacotherapy
32. Cardiovascular Nursing
33. e-Cardiology / Digital Health
34. Public Health and Health Economics
35. Research Methodology
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Accuracy of a non-invasive epicardial and endocardial electrophysiology system to assess the mechanism and site of origin of different types of supraventricular and ventricular arrhythmias
Session:
Posters 1 - Écran 10 - Arritmologia
Speaker:
Leonor Parreira
Congress:
CPC 2019
Topic:
C. Arrhythmias and Device Therapy
Theme:
04. Arrhythmias, General
Subtheme:
04.3 Arrhythmias, General – Diagnostic Methods
Session Type:
Posters
FP Number:
---
Authors:
Leonor Parreira; Pedro Adragão; Pedro Lopes Do Carmo; Joana Pinho; Rafael Jerónimo; Diogo Cavaco; João Carmo; Pedro de Araújo Gonçalves; Hugo Marques; Francisco Moscoso Costa; Margarita Budanova; Stepan Zubarev
Abstract
<p>Background: Recently a novel non-invasive epicardial and endocardial electrophysiology system (NEES) based on electrocardiographic recording has proven effective in assessing the origin of premature ventricular contractions (PVC).</p> <p> Objective : Assess the accuracy of this system, for mapping different arrhythmic substrates.</p> <p>Methods : The study enrolled patients with different types of arrhythmias referred to our center for catheter ablation. Non-invasive mapping was performed with the NEES, based on body surface electrocardiograms of a maximum of 224 electrodes and computed tomography imaging data. Unipolar electrograms were reconstructed on the epicardial and endocardial surfaces. All patients underwent mapping and ablation with the Carto<sup>TM</sup> system and the magnetic navigation system Stereotaxis <sup>TM</sup>. The mechanism of the arrhythmia, the origin in case of focal arrhythmias, the critical isthmus in cases of macroreentry were compared.</p> <p>Results: We enrolled 19 patients. Twelve with PVCs, 3 with premature atrial contractions and 4 with atrial flutter. The mapping was possible even in the presence of rare PVCs or PACs. We found a mechanism concordance in all patients. In patients with PVCs there was concordance in relation to the origin in 10 patients and no concordance in two patients, however the RF applications in these two patientes in accordance with Carto were unsuccessful. There was concordance in all supraventricular arrhythmias in relation to origin and mechanism.</p> <p><strong>Conclusion: </strong>The NEES correctly identified the mechanism and origin of the arrhythmia in patients that were successfully ablated whether due to a focal or macroreentry mechanism. The accuracy even with a small number of arrhythmia beats renders it especially useful for non-sustained or non-tolerated arrhythmias.</p> <p> </p>
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