Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"catheter ablation"”.
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Radiofrequency Lesion Assessment by Cardiac Magnetic Resonance Imaging following Atrial Fibrillation Catheter Ablation
… the structure of the RF lesion applied during ablation is important in determining recurrences. The nature of the RF lesion was studied using MRI with gadolinium delayed enhanced (DE) imaging and high signal T2 weighted imaging. Levels of DE and T2 were low in pre-procedural scans but rose …
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Quality of life, symptoms and experiences of patients with an elevated body mass index undergoing catheter ablation for atrial fibrillation
… with an elevated body mass index undergoing catheter ablation for atrial fibrillation Background Atrial fibrillation (AF) is the most common arrhythmia seen in clinical practice. Previous studies have demonstrated that AF may result in high symptom burden and a reduced quality of life (QoL). …
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Image guidance in cardiac electrophysiology
… past half-century, and today, minimally-invasive catheter-based therapy is the preferred method of eliminating arrhythmias. Using an electroanatomical (EA) mapping system, which precisely tracks the position of catheters inside the patient's body, it is possible to construct three-dimensional maps …
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Radiofrequency ablation versus cryoablation in the treatment of atrioventricular nodal reentrant tachycardia
… 50,000 new cases per year in the United States. Catheter ablation of AV node tissue has become the first-line definitive treatment for AVNRT, owing to its high efficacy, tolerability, and safety. Two modalities of ablation, radiofrequency (RF) and cryoablation are commonly utilized in clinical …
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Left Atrial Posterior Wall Isolation in the Treatment of Atrial Fibrillation
The optimal approach for the ablation of persistent atrial fibrillation is undefined. Left atrial posterior wall isolation (LAPWI) is a promising lesion set, based on techniques for surgical AF ablation. The left atrial posterior wall can be isolated via catheter, surgical or hybrid ablation …
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A 3-Dimensional In Silico Test Bed for Radiofrequency Ablation Catheter Design Evaluation and Optimization
… traumatic treatment for AF is percutaneous catheter ablation to isolate arrhythmogenic areas from the rest of the atrium. The standard <em>in vitro</em> evaluation of ablation catheters through lesion studies is a resource intensive effort due to tissue variability and visual measurement …
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Four-Dimensional Cardiac Magnetic Resonance Analysis in Patients with Atrial Fibrillation
… among patients with atrial fibrillation prior to catheter ablation. It critically examines existing clinical risk models and explores integrating advanced imaging biomarkers with traditional predictors to enhance stroke risk stratification. Through a multidisciplinary approach combining …
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Psychological Well-Being and Health-Related Quality of Life Following Ventricular Tachycardia Ablation, A Prospective Study
… and health-related quality of life (HRQoL). Catheter ablation of VT is a novel procedure intended to reduce VT recurrence, medication use, and ICD shocks. To-date, there is a paucity of research examining psychological well-being and HRQoL in ICD recipients undergoing VT ablation. This …
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Approximate Thermal Modeling of Radiofrequency Cardiac Ablation
… the efficacy and safety of radiofrequency catheter ablation (RFCA) of cardiac tissue. The purpose of RFCA is to carefully heat selected locations in the heart. The resulting thermal injury creates lesions which prevent the generation or propagation of arrhythmias. The ability to predict the …
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Investigating Potentially Arrhythmogenic Atrial Substrate using Computational Simulations and Explainable Machine Learning
… second aim, we investigate the synergy between ablation-induced scar and native fibrosis in atrial models of persistent AFib patients. We reconstructed pre- and post-ablation models to assess AFib inducibility. We classified simulated arrhythmia episodes and determined that pre-ablation models …
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ATRIAL FIBRILLATION MANAGEMENT IN HISPANIC ADULTS
… drugs, in-hospital rate control drugs, prior catheter ablation, prior surgical ablation, and cardioversion).</p> <p><strong>Implications for Research: </strong>The American Association of Colleges of Nursing goals for nurses include addressing pervasive inequities in healthcare to meet the …
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Design, Fabrication and Modelling of Intracardiac Catheter for Electrical Mapping of Atrial Fibrillation
… 17.9 M in Europe by 2060 (Schnabel et al. 2015). Catheter ablation is a treatment for patients with recurring AF where areas of heart are ablated in an attempt to restore natural rhythm. The success of this treatment is highly dependent on the accurate location of AF sources using 3D …
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Identifikation von potentiell prädiktiven biochemischen Faktoren für den Erfolg der renalen Denervation bei therapierefraktärer Hypertonie und ihre Veränderung nach Intervention
Hintergrund: Die renale Denervation gilt als ein sicheres Verfahren zur Behandlung von therapieresistenter Hypertonie, es ist jedoch noch nicht hinreichend erklärt, welche Faktoren zu einer unzureichenden Blutdrucksenkung nach der renalen Denervation führen und welchen Einfluss das Verfahren auf …
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A Comprehensive Evaluation of Cardiac Electro-Anatomic Mapping Using Body Surface Potentials
… endocardial mapping techniques to aid catheter ablation therapies. A novel experimental pig model was developed to address these issues. High-density electropotential signals were mapped simultaneously from precisely determined 3D locations on the body and epicardial surface of the …
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Mortalidad a 30 días, requerimiento de UCI y estancia hospitalaria en pacientes llevados para modulación del sustrato arrítmico ventricular en la Fundación Cardioinfantil entre el período de 2017 y 2019
El objetivo principal del estudio, fue determinar las diferencias entre mortalidad, estancia en UCI y estancia hospitalaria, por lo heterogénea de la población evaluada no se puede realizar prueba de hipótesis ni determinar el valor p para determinar diferencias estadísticamente significativas; sin …
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Agreement between gadolinium-enhanced cardiac magnetic resonance and electro-anatomical maps in patients with non-ischemic dilated cardiomyopathy and ventricular arrhythmias
… how it relates with the procedural outcome after catheter ablation of ventricular arrhythmias (VA). We identified 50 patients with NIDCM who underwent CMR and ablation for VA. LGE was detected in 16 patients (32%), mostly in those presenting with sustained VT (15 patients). Low-voltage areas (<1.5 …