Publications by authors named "Oscar Salvador-Montanes"
Article Synopsis
- This study evaluated cardioneuroablation (CNA) as a treatment for syncope by analyzing outcomes in 77 patients over a median follow-up of 12 months, focusing on recurrence rates and complications.
- Results showed that 33.8% of patients experienced a recurrence of syncope, with women at a higher risk, while older patients (over 50) had a lower risk; general anesthesia or deep sedation and more than 30 radiofrequency applications correlated with better outcomes.
- The findings suggest that the effectiveness of CNA may be lower than previously believed, highlighting the need for careful consideration of patient factors and procedural details when assessing treatment success.
Introduction And Objectives: We report the results of the 2023 Spanish catheter ablation registry.
Methods: Procedural data were collected and incorporated into the REDCap platform by all participating centers through a specific form.
Results: There were 104 participating centers in 2023 compared with 103 in 2022.
Background: Atrial myopathy may underlie the progression of atrial fibrillation (AF) from a treatable disease to an irreversible condition with poor ablation outcomes. Electrophysiological methods to unmask areas prone to re-entry initiation could be key to defining latent atrial myopathy.
Methods: Consecutive patients referred for AF ablation were prospectively included at four institutions.
Background Activation during onset of atrial fibrillation is poorly understood. We aimed at developing a panoramic optical mapping system for the atria and test the hypothesis that sequential rotors underlie acceleration of atrial fibrillation during onset. Methods and Results Five sheep hearts were Langendorff perfused in the presence of 0.
View Article and Find Full Text PDFBackground: Post-COVID-19 patients may incur myocardial involvement secondary to systemic inflammation. Our aim was to detect possible oedema/diffuse fibrosis using cardiac magnetic resonance imaging (CMR) mapping and to study myocardial deformation of the left ventricle (LV) using feature tracking (FT).
Methods: Prospective analysis of consecutively recruited post-COVID-19 patients undergoing CMR.
Background: The differential diagnosis of regular wide QRS complex tachycardia (RWQRST) remains the subject of numerous publications, all of which aim at diagnosis during the acute phase. Although an accurate diagnosis is necessary to make long-term decisions, it often leads to invasive testing.
Methods: Criteria with high positive predictive values (PPVs) for diagnosis can be obtained by analyzing the electrocardiogram (ECG) data during RWQRST and comparing them with these data at baseline.
Background: The aldosterone inhibitor eplerenone (EPL) has been shown to reduce the incidence of atrial fibrillation (AF) in patients with systolic heart failure, but the mechanism is unknown.
Objectives: This study hypothesized that by reducing atrial dilation and fibrosis in the absence of heart failure, EPL also reduces AF burden and prevents AF perpetuation.
Methods: The authors conducted a randomized controlled study in 34 sheep that were atrially tachypaced (13 ± 1 week).
The acetylcholine-activated inward rectifier potassium current ( I) is constitutively active in persistent atrial fibrillation (AF). We tested the hypothesis that the blocking of I with the small molecule chloroquine terminates persistent AF. We used a sheep model of tachypacing-induced, persistent AF, molecular modeling, electrophysiology, and structural biology approaches.
View Article and Find Full Text PDFObjective: A safety threshold for baseline rhythm R-wave amplitudes during follow-up of implantable cardioverter defibrillators (ICD) has not been established. We aimed to analyse the amplitude distribution and undersensing rate during spontaneous episodes of ventricular fibrillation (VF), and define a safety amplitude threshold for baseline R-waves.
Methods: Data were obtained from an observational multicentre registry conducted at 48 centres in Spain.
Number of Beats in the Transition Zone With Fixed SA Interval during Right Ventricular Overdrive Pacing Determines Accessory Pathway Location in Orthodromic Reentrant Tachycardia.
Pacing Clin Electrophysiol
January 2016
Background: Ventricular overdrive pacing (VOP) produces reset during the transition zone (TZ) of QRS fusion in orthodromic reentrant tachycardia (ORT) and after the TZ in atrioventricular nodal reentrant tachycardia (AVNRT), and this represents a simple diagnostic maneuver to differentiate the two tachycardia mechanisms.
Objective: The purpose of this study was to determine whether the number of beats with reset in the TZ predicts accessory pathway (AP) location in ORT.
Methods: We retrospectively reviewed 57 patients with ORT (21 left-sided AP, 20 septal AP, and 16 right-sided AP) and 20 patients with AVNRT (19 typical AVNRT and one atypical AVNRT) who underwent VOP from the right ventricular apex.
Introduction: Little is known about the prevalence of electrical storm, baseline characteristics and mortality implications of patients with implantable cardioverter defibrillator in primary prevention versus those patients without electrical storm. We sought to assess the prevalence, baseline risk profile and survival significance of electrical storm in patients with implantable defibrillator for primary prevention.
Methods: Retrospective multicenter study performed in 15 Spanish hospitals.
Background: Early prognosis in comatose survivors after cardiac arrest due to ventricular fibrillation (VF) is unreliable, especially in patients undergoing mild hypothermia. We aimed at developing a reliable risk-score to enable early prediction of cerebral performance and survival.
Methods: Sixty-one out of 239 consecutive patients undergoing mild hypothermia after cardiac arrest, with eventual return of spontaneous circulation (ROSC), and comatose status on admission fulfilled the inclusion criteria.
Aims And Objectives: New electrophysiology tools like intracardiac echocardiography (ICE) might help to minimize and early detect complications during cardiac ablation procedures. The aim of the study was to assess the utility and vascular safety of ICE during catheter ablation of complex cardiac arrhythmias in a medium-volume training center.
Methods: Prospective, observational study consisted of consecutive patients who underwent catheter-based ablation of complex cardiac arrhythmias.
Atrial fibrillation (AF) is the most common sustained arrhythmia encountered in clinical practice with growing prevalence in developed countries. Several medical and interventional therapies, such as atrial specific drugs and pulmonary vein isolation, have demonstrated prevention of recurrences. However, their suboptimal long-term success and significant rate of secondary effects have led to intensive research in the last decade focused on novel alternative and supplemental therapies.
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