Login
Search
Search
0 Dates
2024
2023
2022
2021
2020
2019
2018
0 Events
CPC 2018
CPC 2019
Curso de Atualização em Medicina Cardiovascular 2019
Reunião Anual Conjunta dos Grupos de Estudo de Cirurgia Cardíaca, Doenças Valvulares e Ecocardiografia da SPC
CPC 2020
CPC 2021
CPC 2022
CPC 2023
CPC 2024
0 Topics
A. Basics
B. Imaging
C. Arrhythmias and Device Therapy
D. Heart Failure
E. Coronary Artery Disease, Acute Coronary Syndromes, Acute Cardiac Care
F. Valvular, Myocardial, Pericardial, Pulmonary, Congenital Heart Disease
G. Aortic Disease, Peripheral Vascular Disease, Stroke
H. Interventional Cardiology and Cardiovascular Surgery
I. Hypertension
J. Preventive Cardiology
K. Cardiovascular Disease In Special Populations
L. Cardiovascular Pharmacology
M. Cardiovascular Nursing
N. E-Cardiology / Digital Health, Public Health, Health Economics, Research Methodology
O. Basic Science
P. Other
0 Themes
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
11. Acute Heart Failure
12. Coronary Artery Disease (Chronic)
13. Acute Coronary Syndromes
14. Acute Cardiac Care
15. Valvular Heart Disease
16. Infective Endocarditis
17. Myocardial Disease
18. Pericardial Disease
19. Tumors of the Heart
20. Congenital Heart Disease and Pediatric Cardiology
21. Pulmonary Circulation, Pulmonary Embolism, Right Heart Failure
22. Aortic Disease
23. Peripheral Vascular and Cerebrovascular Disease
24. Stroke
25. Interventional Cardiology
26. Cardiovascular Surgery
27. Hypertension
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
36. Basic Science
37. Miscellanea
0 Resources
Abstract
Slides
Vídeo
Report
CLEAR FILTERS
Atrial fibrillation and cryoballoon ablation: which procedure markers correlate with its recurrence?
Session:
CO 01 - Arritmologia Invasiva
Speaker:
Micaela Rodrigues Neto
Congress:
CPC 2018
Topic:
C. Arrhythmias and Device Therapy
Theme:
05. Atrial Fibrillation
Subtheme:
05.4 Atrial Fibrillation - Treatment
Session Type:
Comunicações Orais
FP Number:
---
Authors:
Micaela Rodrigues Neto; Carlos Lovatto; João Carmo; Francisco Moscoso Costa; Maria Salomé Carvalho; Elizabete Vaz; Pedro Lopes Do Carmo; Diogo Cavaco; Francisco Bello Morgado; Pedro Adragão; Miguel Mendes
Abstract
<p><strong><u>Introduction: </u></strong>Cryoballoon ablation (CA) is an accepted method for pulmonary vein isolation (PVI) in the treatment of atrial fibrillation (AF), although, its recurrence occurs in up to 30% of the patients. Even after second-generation (2<sup>nd</sup>) catheters, procedural parameters like the ideal temperature, number and duration of freezing cycles that could avoid pulmonary veins reconnection without additional complications are still a matter of debate.</p> <p><strong><u>Purpose: </u></strong>To assess AF recurrence after PVI with CA and correlate it with ablation parameters used during the procedure.</p> <p><strong><u>Methods</u></strong>: Single-center, retrospective study of 53 consecutive patients (49.1% males, median age 65 years old [IQR 25-80], 84.9% paroxysmal AF) undergoing their first AF ablation with a cryoballoon catheter, between January 2014 and June 2017. They were divided in two groups according to AF recurrence (defined as documented AF>30 seconds on ECG/Holter after a 3-month blanking period) during a median follow-up period of 20 months: A) group with AF recurrence and B) group without AF recurrence. They were compared regarding ablation parameters recorded during the procedure (nadir temperature, rewarming time and freezing application time with a temperature below -40ºC).</p> <p><strong><u>Results: </u></strong>AF recurrence was documented in 26.4% of the patients. There were no statistical differences regarding patient baseline characteristics nor structural heart disease (left atrial volume was similar in both groups: A – 35,3±6,6mL/m<sup>2</sup> versus B – 33,5 ± 8,6mL/m<sup>2</sup>). Regarding ablation parameters, nadir temperature was higher in group A (A: -42.8±4.6º vs B: -50.0±4.9º, p=0.05). Duration of a freezing application with a temperature below -40º was shorter in the recurrence group (A: 97.6±44.7s vs B: 112.8±46.3s, p=0.03) as was balloon rewarming time (A: 36.1±10.6s vs B: 38.8±11.8, p =0.05).</p> <p><strong><u>Conclusion:</u></strong> In AF cryoballoon ablation, a shorter balloon rewarming time and a freezing application time with temperature below -40ºC were linked to AF recurrence during follow-up.</p>
Slides
Our mission: To reduce the burden of cardiovascular disease
Visit our site