Human Pathologic Validation of Left Ventricular Linear Lesion Formation Guided by Noncontact Mapping
نویسندگان
چکیده
منابع مشابه
Human pathologic validation of left ventricular linear lesion formation guided by noncontact mapping.
This case report describes the histopathologic findings associated with two left ventricular, linear radiofrequency lesions in a patient who underwent cardiac transplantation shortly after an ablation procedure for ventricular tachycardia. The lesions were created with conventional ablation equipment guided by a noncontact mapping system. The findings provide pathologic validation that continuo...
متن کاملDetermination of human ventricular repolarization by noncontact mapping: validation with monophasic action potential recordings.
BACKGROUND Noncontact mapping (NCM) has not been validated as a clinical technique to measure ventricular repolarization. We used NCM to determine repolarization characteristics by analysis of reconstructed unipolar electrograms (UEs) at the same sites as monophasic action potential (MAP) recordings in the human ventricle. METHODS AND RESULTS MAPs were recorded from a total of 355 beats at 46...
متن کاملMapping and ablation of ventricular tachycardia guided by virtual electrograms using a noncontact, computerized mapping system.
OBJECTIVES The purpose of this study was to describe a computerized mapping system that utilizes a noncontact, 64 electrode balloon catheter to compute virtual electrograms simultaneously at 3,360 left ventricular (LV) sites and to assess the clinical utility of this system for mapping and ablating ventricular tachycardia (VT). BACKGROUND Mapping VT in the electrophysiology laboratory convent...
متن کاملValidation of a new noncontact catheter system for electroanatomic mapping of left ventricular endocardium.
BACKGROUND Improvements in cardiac mapping are required to advance our understanding and treatment of arrhythmias. This study validated a new noncontact multielectrode array catheter and accompanying analysis system to provide electroanatomic mapping of the entire left ventricular (LV) endocardium during a single beat. METHODS AND RESULTS A 9F 64-electrode balloon array catheter with an infla...
متن کاملCatheter ablation of multiple ventricular tachycardias after myocardial infarction guided by combined contact and noncontact mapping.
BACKGROUND Insights gained from noncontact mapping of ventricular tachycardia (VT) have not been systematically applied to contact maps. This study sought to unify both techniques for an individualized approach to the patient with multiple ischemic VTs irrespective of cycle length. METHODS AND RESULTS For 12 consecutive patients with chronic myocardial infarction and recurrent VT, bipolar con...
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ژورنال
عنوان ژورنال: Journal of Cardiovascular Electrophysiology
سال: 2002
ISSN: 1045-3873,1540-8167
DOI: 10.1046/j.1540-8167.2002.00079.x