Endocardial geometry creation relied on impedance (EnSite Precision; Abbott Inc) and magnetic (MediGuide™ or EnSite Precision; Abbott Inc) points acquisition in sinus rhythm. In addition to geometry, voltage data were acquired, and electroanatomical mapping (EAM) was created by the EnSite Precision cardiac mapping system (EAM-endoLV). To improve accuracy, field scaling and respiratory compensation were applied. Bipolar electrograms were filtered at 30–300 Hz. Electrical identification of scar areas was done through bipolar EAM using a voltage amplitude–based criterion (with values <0.3 mV identifying “deep scar” and values >1.5 mV healthy myocardium). Fractionated signals identified either by the physician per-procedure using Jaïs and colleagues’ definition of local abnormal ventricular activation16 (link) or through EnSite Precision fractionation maps (threshold = 3) were used to locate scar areas and arrhythmogenic substrate. Voltage data from EAM was our gold standard in the clinical decision to determine the ablation locations.
Mediguide
Manufactured by Abbott
Sourced in United States
MediGuide™ is a medical device designed to assist healthcare professionals in medical procedures. It provides real-time visualization and tracking of medical instruments within the patient's body during minimally invasive procedures.
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Lab products found in correlation
2 protocols using mediguide
1
Endocardial Geometry and Scar Mapping for Arrhythmia
2
Prospective Registry of AF Ablation
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Consecutive patients admitted for ablation of AF were prospectively included in the AF ablation registry. The Leipzig AF Ablation Registry has been approved by the Ethics Authority. Data from patients between January 2014 and September 2014 were analyzed. The patients were ≥ 18 years old. Patients undergoing cryo-ablation and procedures with radiation-saving technology (MediGuide, Abbott, St. Paul, MN, USA) were excluded to allow an unbiased comparison of the datasets.
Baseline characteristics were analyzed, procedural aspects with a focus on procedure and fluoroscopy time, complication rates, and follow-up data are presented herein.
Baseline characteristics were analyzed, procedural aspects with a focus on procedure and fluoroscopy time, complication rates, and follow-up data are presented herein.
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