1/1/2024 0 Comments Type ii atrial flutter icd 10![]() We prospectively studied endocardial cryoablation of the Cox-maze III lesion set following prespecified rhythm assessment with outpatient telemetry. , Surveillance post-commercialisation des produits de santé/méthodesīACKGROUND: Only 40% of patients with atrial fibrillation (AF) undergoing cardiac surgery are treated with surgical AF correction. , Tomodensitométrie multidétecteurs/normes , Dispositifs de resynchronisation cardiaque Sujet(s) Troubles du rythme cardiaque/imagerie diagnostique CONCLUSIONS: The findings suggest that the presence of CRM devices should not delay or result in cancellation of clinically indicated CT imaging procedures, and provide evidence that would be helpful when the FDA advisory is re-evaluated. Potentially significant changes in device parameters were observed in a small group of devices (both the CT group and control group), but no definitive link to CT was confirmed, and there were no associated clinical consequences. With serial device interrogations, there were no differences in changes in battery voltage or lead parameters between devices exposed to radiation and their controls. RESULTS: The main finding was that none of the CTs were associated with the primary outcome. Significant changes in device parameters were sought as a secondary outcome (control group 4:1 ratio). The primary outcome was a composite endpoint of death, bradycardia or tachycardia requiring termination of the scan or an immediate intervention, unplanned hospital admission, reprogramming of the device, inappropriate defibrillator shocks, or device replacement/revision thought to be due to CT imaging. METHODS: All 516 CT scans that involved direct radiation exposure of CRM devices (332 defibrillators, 184 pacemakers) at 2 large-volume centers between July 2000 and May 2010 were included. BACKGROUND: The FDA warned about potential interference of CT imaging with CRM devices and made recommendations for clinical practice despite only limited evidence. Food and Drug Administration (FDA) in 2008. OBJECTIVES: To assess the safety of computed tomography (CT) imaging in patients with cardiac rhythm management (CRM) devices, which was subject to an advisory from the U.S. , Tachycardie ventriculaire/imagerie diagnostique , Tachycardie ventriculaire/complications ![]() , Tomographie par émission de positons/méthodes , Sidération myocardique/imagerie diagnostique , Système de conduction du coeur/imagerie diagnostique , Tachycardie ventriculaire/physiopathologie , Sidération myocardique/physiopathologie , Système de conduction du coeur/physiopathologie , Fluorodésoxyglucose F18/pharmacocinétique Sujet(s) Cartographie du potentiel de surface corporelle/méthodes These observations may underlie the vulnerability to reentry and SCD in patients with hypoperfused yet viable myocardium. CONCLUSIONS: Hibernating myocardium displays abnormal and heterogeneous electrical properties and seems to contribute to the substrate of VT. Exit sites of clinical VTs were determined in 6 patients, of which 3 were located within hibernating myocardium. The characteristics of local electrograms were also assessed and found abnormal in most recordings (76.6, 10.2% fractionated, 5.3% isolated potentials). A total of 303 voltage points were obtained within hibernating myocardium (8.2 points per 10 cm2) and displayed abnormal voltage in 48.5 and 78.3% of bipolar and unipolar recordings, respectively, with significant heterogeneity of bipolar (p 1.5 mV). RESULTS: Of 61 patients with ischemic heart disease and refractory VT, 7 were found to have hibernating myocardium (13%). Hibernating areas were identified which was followed by three-dimensional PET reconstructions and integration with voltage maps to allow hybrid metabolic-electro-anatomic assessment of the arrhythmogenic substrate. METHODS: Endocardial voltage mapping, metabolic 18FDG-positron emission tomography (PET) and perfusion 82Rb, 201Tl, or 99mTc scans were performed in 61 ischemic heart disease patients with VT. We aimed to electrophysiologically characterize HM in patients with ventricular tachycardia (VT). ![]() Little is known about the electrophysiological properties of HM and the basis of its association with SCD. PURPOSE: Hibernating myocardium (HM) is associated with sudden cardiac death (SCD).
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