Publications by authors named "Aurelio Quesada-Dorador"

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.

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Twiddler syndrome is a rare entity in which patient manipulation causes lead dislocation with lead retraction. Reel syndrome, on the other hand, is observed after external manipulation, intentional or unintentional, in which the leads move along their transverse axis and is considered a variant of Twiddler syndrome. We present the clinical case of a 91-year-old female who, after pacemaker implantation, presented with dizziness and chest discomfort following constant manipulation of the pacemaker, resulting in complete retraction of the lead tip into the pouch, which is unusual in the literature to date.

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Arrhythmogenic cardiomyopathy (ACM) is a disease characterized by a progressive replacement of myocardium by fibro-adipose material, predisposing to ventricular arrhythmias (VA) and sudden cardiac death (SCD). Its prevalence is estimated at 1:2000 to 1:5000, with a higher incidence in males, and clinical onset is usually between the 2nd and 4th decade of life. The prevalence of ACM in SCD victims is relatively high, making it one of the most common etiologies in young patients with SCD, especially if they are athletes.

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Article Synopsis
  • A multicenter clinical trial called POWER FAST III is set to compare high-power short-duration (HPSD) radiofrequency ablation with standard techniques for treating atrial fibrillation (AF), aiming to reduce procedure time without sacrificing safety or effectiveness.
  • The study involves two groups: one using higher power settings (70 W and 9-10 seconds) and another using lower power (25-40 W), measuring atrial arrhythmia recurrence and the risk of esophageal damage.
  • Results are expected to potentially validate the HPSD approach, influencing future clinical practices for AF ablation procedures.
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Introduction: The increased synthesis of CA125 in mesothelial cells is connected with pathophysiological processes, also present in sepsis, that link inflammation with systemic congestion. We propose to evaluate serum levels of this biomarker in patients with sepsis and to study its association with the severity and evolution of the disease.

Methods: Longitudinal retrospective observational study, which included 126 patients admitted to an Intensive Care Unit with sepsis criteria.

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Myocarditis is among the causes of arrhythmic sudden cardiac death (SCD) in young athletes, with viral infection being the most common cause worldwide. Myocarditis recently has been reported as one of the cardiac complications of coronavirus disease 2019 (COVID-19) in athletes. Here we present a case of a 20-year-old male recreational soccer player with an episode of loss of consciousness in the context of respiratory infection.

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Article Synopsis
  • - Right ventricular outflow tract (RVOT) ventricular tachycardia (VT) is common in trained athletes, particularly women, but most studies have focused on men, revealing significant differences in cardiac adaptations.
  • - A case study describes a 35-year-old female endurance athlete who experienced symptoms like chest pain and dizziness during intense exercise, leading to a diagnostic exercise stress test that confirmed VT.
  • - The patient underwent a successful radiofrequency catheter ablation to eliminate the abnormal electrical activity causing her VT, highlighting the importance of recognizing gender-specific cardiac responses in athletes.
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Ventricular fibrillation (VF) signals are characterized by highly volatile and erratic electrical impulses, the analysis of which is difficult given the complex behavior of the heart rhythms in the left (LV) and right ventricles (RV), as sometimes shown in intracardiac recorded Electrograms (EGM). However, there are few studies that analyze VF in humans according to the simultaneous behavior of heart signals in the two ventricles. The objective of this work was to perform a spectral and a non-linear analysis of the recordings of 22 patients with Congestive Heart Failure (CHF) and clinical indication for a cardiac resynchronization device, simultaneously obtained in LV and RV during induced VF in patients with a Biventricular Implantable Cardioverter Defibrillator (BICD) Contak Renewal IV (Boston Sci.

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Introduction And Objectives: This report describes the findings of the 2017 Spanish Catheter Ablation Registry.

Methods: Data collection was retrospective. A standardized questionnaire was completed by each of the participating centers.

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Introduction And Objectives: Cardiac resynchronization therapy with a defibrillator prolongs survival and improves quality of life in advanced heart failure. Traditionally, patients with ejection fraction > 35 estimated by echocardiography have been excluded. We assessed the prognostic impact of this therapy in a group of patients with severely depressed systolic function as assessed by echocardiography but with an ejection fraction > 35% as assessed by cardiac magnetic resonance.

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Background: Atrial fibrillation is frequent in surgical patients with cardiac valvulopathies. Radiofrequency energy applied by means of surgical probes permits the reproduction of atriotomies described in the maze surgical procedure for the ablation of atrial fibrillation in a fast, safe and efficient way. This study presents our initial experience in treatment of chronic atrial fibrillation through radiofrequency performed in patients with surgical cardiac valvulopathies.

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