Nikolaos Dagres

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INTRODUCTION Catheter ablation is potentially curative treatment for atrial fibrillation (AF). However, complications are more frequent and more severe compared with other ablation procedures. We investigated the complication rate in 1,000 AF ablation procedures in a high-volume center and examined possible risk factors. METHODS AND RESULTS One thousand(More)
OBJECTIVES This study sought to investigate gender-related differences in patients with atrial fibrillation (AF) in Europe. BACKGROUND Gender-related differences may play a significant role in AF. METHODS We analyzed the data of 5,333 patients (42% female) enrolled in the Euro Heart Survey on Atrial Fibrillation. RESULTS Compared with men, the women(More)
INTRODUCTION Catheter ablation of atrial fibrillation (AF) is a highly invasive and relatively long-lasting procedure with specific requirements for patient sedation. The feasibility and safety of deep sedation is described in a prospective study of 650 consecutive patients. METHODS Sedation was initiated with an intravenous (iv) bolus of midazolam, and(More)
The aim of this European Heart Rhythm Association (EHRA) survey was to collect data on the use of wearable cardioverter-defibrillators (WCDs) among members of the EHRA electrophysiology research network. Of the 50 responding centres, 23 (47%) reported WCD use. Devices were fully reimbursed in 17 (43.6%) of 39 respondents, and partially reimbursed in 3(More)
Atrial fibrillation is the most common arrhythmia, and is associated with increased risk of stroke and death. Most of present knowledge is derived from studies in patients with cardiac disease whilst limited information is available for patients with several chronic non-cardiac conditions like cancer, chronic obstructive pulmonary disease and chronic kidney(More)
There are limited and controversial data regarding the impact of 4G/5G polymorphism of the plasminogen activator inhibitor-1 (PAI-1) gene in the pathogenesis of premature myocardial infarction (MI). We explored whether 4G/5G polymorphism of the PAI-1 gene is associated with the development of MI ≤ 35 years of age. We recruited 201 consecutive patients who(More)
Rotational angiography is a novel method for three-dimensional reconstruction of the left atrium and pulmonary veins during catheter ablation for atrial fibrillation, but is still hampered by suboptimal reconstructions in a considerable number of patients. We describe the results of rapid pacing of the right ventricle for optimization of image acquisition(More)
Accurate understanding and visualization of the mechanisms of cardiac arrhythmias originating from a complex 3D substrate are a prerequisite for successful treatment of such disorders. Nonfluoroscopic cardiac mapping systems are designed to provide the required spatial anatomical information in combination with local electrical information. During recent(More)
INTRODUCTION The aim of the study was to identify criteria for rapid recognition and successful treatment of esophageal perforation after radiofrequency ablation for atrial fibrillation (AF). METHODS AND RESULTS Esophageal perforation occurred in five patients after intraoperative (n = 4) or percutaneous (n = 1) AF ablation. Patients presented with high(More)
BACKGROUND Steerable sheath technology is designed to facilitate catheter access, stability, and tissue contact in target sites of atrial fibrillation (AF) catheter ablation. We hypothesized that rhythm control after interventional AF treatment is more successful using a steerable as compared with a nonsteerable sheath access. METHODS AND RESULTS One(More)