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Anesthesia Management for Epicardial Pacemaker Electrode Implantation in a Patient With a History of Fontan Procedure: A Case Report.
Cureus
December 2024
Department of Anaesthesiology, Seirei Hamamatsu General Hospital, Hamamatsu, JPN.
One-lung ventilation is commonly used in lateral open chest surgery; however, it can increase pulmonary vascular resistance, which negatively affects Fontan circulation. Nevertheless, one-lung ventilation has a positive indication in post-Fontan patients. It allows surgery with lateral minimally invasive thoracotomy, which does not require a median sternotomy.
View Article and Find Full Text PDFWhole-Heart Histological and CMR Validation of Electroanatomic Mapping by Multielectrode Catheters in an Ovine Model.
JACC Clin Electrophysiol
January 2025
Department of Cardiology, Westmead Hospital, Sydney, New South Wales, Australia; Westmead Applied Research Centre, University of Sydney, Sydney, New South Wales, Australia. Electronic address:
Background: Accurate electroanatomic mapping is critical for identifying scar and the long-term success of ventricular tachycardia ablation.
Objectives: This study sought to determine the accuracy of multielectrode mapping (MEM) catheters to identify scar on cardiac magnetic resonance (CMR) and histopathology.
Methods: In an ovine model of myocardial infarction, we examined the effect of electrode size, spacing, and mapping rhythm on scar identification compared to CMR and histopathology using 5 multielectrode mapping catheters.
Injectable ionic hydrogel conductors: Advancing material design to transform cardiac pacing.
Biomaterials
January 2025
Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA. Electronic address:
Direct pacing of the mid myocardium where re-entry originates can be used to prevent ventricular arrhythmias and circumvent the need for painful defibrillation or cardiac ablation. However, there are no pacing electrodes small enough to navigate the coronary veins that cross these culprit scar regions. To address this need, we have developed an injectable ionically conductive hydrogel electrode that can fill the epicardial coronary veins and transform them into flexible electrodes.
View Article and Find Full Text PDFIn silico pace mapping identifies pacing sites more accurately than inverse body surface potential mapping.
Heart Rhythm
December 2024
School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom.
Background: Electrocardiographic imaging (ECGi) is a noninvasive technique for ventricular tachycardia ablation planning. However, it is limited to reconstructing epicardial surface activation. In silico pace mapping combines a personalized computational model with clinical electrocardiograms (ECGs) to generate a virtual 3-dimensional pace map.
View Article and Find Full Text PDFConstrictive pericarditis following epicardial pacemaker implant: a diagnostic dilemma.
Cardiol Young
December 2024
Dept of Paediatric Cardiac Surgery, NH SRCC Children's Hospital, Mumbai, India.
Constrictive pericarditis is a rare complication after cardiac surgery. It is mostly seen in adults. We report a case of constrictive pericarditis in a 3-year-old child with right ventricular dysfunction after permanent pacemaker implantation during infancy for congenital complete heart block.
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