Fambuena-Santos, C.; Hernández-Romero, Ismael; Molero-Alabau, Rubén; Atienza, Felipe; Andreu M. Climent; Guillem Sánchez, María Salud(Frontiers Media SA, 2023-03-09)
[EN] Pulmonary vein isolation (PVI) is the most successful treatment for atrial fibrillation (AF) nowadays. However, not all AF patients benefit from PVI. In this study, we evaluate the use of ECGI to identify reentries ...
Sanchez-De la Nava, Ana María; Arenal, Angel; Fernández-Avilés, Francisco; Atienza, Felipe(Frontiers Media SA, 2021-12-27)
[EN] Background: Antiarrhythmic drugs are the first-line treatment for atrial fibrillation (AF), but their effect is highly dependent on the characteristics of the patient. Moreover, anatomical variability, and specifically ...
Costoya-Sánchez, Alejandro; Climent, Andreu M.; Hernández-Romero, Ismael; Liberos Mascarell, Alejandro; Fernández-Avilés, Francisco; Narayan, Sanjiv M.; Atienza, Felipe; Guillem Sánchez, María Salud; RODRIGO BORT, MIGUEL(Elsevier, 2020-02)
[EN] Identification of reentrant activity driving atrial fibrillation (AF) is increasingly important to ablative therapies. The goal of this work is to study how the automatically-classified quality of the electrograms ...
Costoya-Sánchez, Alejandro; Climent, Andreu M.; Hernández-Romero, Ismael; Liberos, Alejandro; Fernández-Avilés, Francisco; Narayan, Sanjiv M.; Atienza, Felipe; Guillem Sánchez, María Salud; Rodrigo, Miguel(IEEE, 2019-09-11)
[EN] Location of reentrant electrical activity responsible for
driving atrial fibrillation (AF) is key to ablative therapies.
The aim of this work is to study the effect of the quality of
the electrograms (EGMs) used for ...
Rodrigo Bort, Miguel; Guillem Sánchez, María Salud; Climent, Andreu M.; Pedrón Torrecilla, Jorge; Liberos Mascarell, Alejandro; Millet Roig, José; Fernandez-Aviles, Francisco; Atienza, Felipe; Berenfeld, Omer(Elsevier, 2014-09)
Background: Ablation is an effective therapy in atrial fibrillation (AF) patients in which an electrical driver can be identified.
Objective: The aim of this study is to present and discuss a novel and strictly non-invasive ...
[EN] Background-Several metabolic conditions can cause the Brugada ECG pattern, also called Brugada phenotype (BrPh). We aimed to define the clinical characteristics and outcome of BrPh patients and elucidate the mechanisms ...
Background: Ventricular fibrillation is routinely induced during implantable cardioverter-
-defibrillator insertion to assess defibrillator performance, but this strategy is experiencing
a progressive decline. We aimed ...
BACKGROUND Empiric circumferential pulmonary vein isolation (CPVI) has become the therapy of choice for drugrefractory
atrial fibrillation (AF). Although results are suboptimal, it is unknown whether mechanistically-based ...
Molero-Alabau, Rubén; Climent, Andreu M.; Hernández-Romero, Ismael; Liberos, Alejandro; Fernández-Avilés, Francisco; Atienza, Felipe; Guillem Sánchez, María Salud; Rodrigo, Miguel(IEEE, 2019-09-11)
[EN] Electrocardiographic imaging (ECGI) can characterise cardiac pathologies such as atrial fibrillation (AF) through specific markers based on frequency or phase analysis. In this study, the effect of the geometry of ...
Salinet, Joao; Molero-Alabau, Rubén; Schlindwein, Fernando S.; Karel, Joël; Rodrigo, Miguel; Rojo-Álvarez, José Luis; Berenfeld, Omer; Climent, Andreu M.; Zenger, Brian; Vanheusden, Frederique; Siles Paredes, Jimena Gabriela; MacLeod, Rob; Atienza, Felipe; Guillem Sánchez, María Salud; Cluitmans, Matthijs; Bonizzi, Pietro(Frontiers Media SA, 2021-04-30)
[EN] Electrocardiographic imaging (ECGI) is a technique to reconstruct non-invasively the electrical activity on the heart surface from body-surface potential recordings and geometric information of the torso and the heart. ...
Cámara-Vázquez, Miguel Ángel; Hernández-Romero, Ismael; Rodrigo, Miguel; Alonso-Atienza, Felipe; Figuera, Carlos; Morgado-Reyes, Eduardo; Atienza, Felipe; Guillem Sánchez, María Salud; Climent, Andreu M.; Barquero-Pérez, Óscar(Elsevier, 2021-02)
[EN] Atrial fibrillation (AF) is characterized by complex and irregular propagation patterns. Noninvasive electrocardiographic imaging (ECGI) has been tested during AF conditions with promising results. However, current ...
Climent, Andreu M.; Atienza, Felipe; Millet Roig, José; Guillem Sánchez, María Salud(Springer Verlag (Germany), 2011-11)
The aim of the this study is to describe a methodological architecture for the generation of realistic atrial to atrial activation intervals (AA) during atrial fibrillation (AF), which can be used to investigate the role ...
Aims Research on paroxysmal atrial fibrillation (AF) assumes that fibrillation induced by rapid pacing adequately reproduces spontaneously occurring paroxysmal AF in humans. We aimed to compare the spectral properties of ...
RODRIGO BORT, MIGUEL; Climent, Andreu M.; Liberos Mascarell, Alejandro; Fernandez-Aviles, Francisco; Berenfeld, Omer; Atienza, Felipe; Guillem Sánchez, María Salud(Elsevier, 2017-08)
[EN] BACKGROUND Dominant frequency (DF) and rotor mapping have been proposed as noninvasive techniques to guide localization of drivers maintaining atrial fibrillation (AF).
OBJECTIVE The purpose of this study was to ...
Objectives: The aim of this paper was to study mechanisms of formation of fractionated electrograms on the posterior left atrial wall (PLAW) in human paroxysmal atrial fibrillation (AF). Background: The mechanisms responsible ...
[EN] Background: Ablation of drivers maintaining atrial fibrillation (AF) has been demonstrated as an effective therapy. Drivers in the form of rapidly activated atrial regions can be noninvasively localized to either left ...
RODRIGO BORT, MIGUEL; Martínez Climent, Batiste Andreu; Hernández-Romero, Ismael; Liberos Mascarell, Alejandro; Baykaner, Tina; Rogers, Albert J.; Alhusseini, Mahmood; Wang, Paul J.; Fernández-Avilés, Francisco; Guillem Sánchez, María Salud; Narayan, Sanjiv M.; Atienza, Felipe(Ovid Technologies Wolters Kluwer -American Heart Association, 2020-03)
[EN] Background:
It is difficult to noninvasively phenotype atrial fibrillation (AF) in a way that reflects clinical end points such as response to therapy. We set out to map electrical patterns of disorganization and ...
Background—Ablation of high-frequency sources in patients with atrial fibrillation (AF) is an effective therapy to restore
sinus rhythm. However, this strategy may be ineffective in patients without a significant dominant ...
Hernández-Romero, Ismael; Guillem Sánchez, María Salud; Figuera, Carlos; Atienza, Felipe; Fernández-Avilés, Francisco; Martínez Climent, Batiste Andreu(Public Library of Science, 2019-05-14)
[EN] Background
Alternans have been associated with the development of ventricular fibrillation and its control has been proposed as antiarrhythmic strategy. However, cardiac arrhythmias are a spatiotemporal phenomenon ...
[EN] Background Multipoint pacing (MPP) in cardiac resynchronization therapy (CRT) activates the left ventricle from two locations, thereby shortening the QRS duration and enabling better resynchronization; however, compared ...