Spatial Relation Between Left Atrial Anatomical Contact Areas and Circular Activation in Persistent Atrial Fibrillation
| Autor: | Yuichi Hori, Takaaki Komatsu, Yoshihiko Sakai, Akira Fukui, Takanori Yamaguchi, Isao Taguchi, Takeshi Tsuchiya, Naofumi Anjo, Akiko Hayashi, Sayuki Kobayashi, Shiro Nakahara |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
medicine.medical_specialty
business.industry medicine.medical_treatment P wave Atrial fibrillation Catheter ablation 030204 cardiovascular system & hematology medicine.disease 03 medical and health sciences 0302 clinical medicine Left atrial Physiology (medical) Internal medicine Descending aorta medicine.artery Ascending aorta Cardiology medicine 030212 general & internal medicine Cardiology and Cardiovascular Medicine business Antrum Left Pulmonary Vein |
| Zdroj: | Journal of Cardiovascular Electrophysiology. 27:515-523 |
| ISSN: | 1045-3873 |
| DOI: | 10.1111/jce.12907 |
| Popis: | INTRODUCTION Atrial low-voltage zones (LVZs) may be related to maintenance of atrial fibrillation (AF). The influence of left atrial (LA) contact areas (CoAs) on reentrant or rotor-like sources maintaining AF has not been investigated. METHODS AND RESULTS Forty patients with persistent AF (PsAF) were analyzed. Three representative CoA regions in the LA (ascending aorta: anterior wall; descending aorta: left inferior pulmonary vein; and vertebrae: posterior wall) were visualized by enhanced CT. Using circular catheters, the LVZs ( 80% of the mean AF cycle length. A pivot was defined as the core of the localized circular activation. Anterior (39/40 patients, 98%), left pulmonary vein antrum (27/40, 68%), and posterior (19/40, 48%) CoAs were identified, and 80% (68/85) of those sites were overlapped by or close ( |
| Databáze: | OpenAIRE |
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