OBJECTIVE To compare the effect of radio frequency ablation (RFA) on the dimensions of radio frequency coagulation necrosis in a rabbit lung using a wet electrode in monopolar mode with that in dual electrode bipolar mode at different infusion rates (15 mm/hr versus 30 ml/hr) and saline concentrations (0.9% normal versus 5.8% hypertonic saline). MATERIALS AND METHODS Fifty ablation zones (one...

Modeling the process of radiofrequency ablation (RFA) to support pre-interventional prediction of the treatment result has been desired for more than one decade by now. Still a correct description is mathematically demanding and needs further investigation into medical facts. The process is highly dependent on the patient specific anatomy and physiology. Descriptions from an engineering perspec...

Background Visualization of radiofrequency ablation lesions during cardiac electrophysiology procedures would help ensuring their contiguity and inclusiveness, which are essential for the procedures’ long-term success. The usefulness of dynamic contrast enhancement (DynCE) and cumulative characteristics for ablation lesion visualization has been already demonstrated (1). However, planning of th...

Insulinoma are rare pancreatic islet cell tumors with fasting hypoglycemia due to excessive insulin secretion as the main clinical expression. The treatment of choice is surgery. In the elderly, diagnosis and treatment can be challenging. The elevated perioperative risks in this population often lead to forsake the option of surgery. Nutritional approaches and medical treatment are then often p...

Objective The purpose of this study was to compare remote magnetic catheter navigation with manual navigation for the ablation of atrioventricular nodal reentry tachycardia (AVNRT). Methods From November 2007 to November 2009, 30 consecutive patients with AVNRT received radiofrequency ablation in the Institute of Geriatric Cardiology. Of them, 14 were treated with remote magnetic navigation (RM...

Ventricular Tachycardia (VT) is a life threatening complication in a patient with Cardiac Sarcoidosis. The management becomes extremely challenging when it is refractory to traditional anti-arrhythmic drugs. Herein, we describe a case where a 33-year-old patient with VT storm, with an implantable cardioverter defibrillator (ICD), was managed by medications, sedation, ventilator support and mult...

Background Radio-frequency catheter ablation (RFCA) in children is difficult because the size of heart chamber change with age and the catheter made for adults is not appropriate for a child. Three-dimensional (3D) images for electroanatomic mapping (EAM) have been used to create from images of multi-detector computed tomography (MDCT) which need to perform entailed by contrast medium injection...

Air embolism is an insidious but potentially life-threatening complication very rarely occurring after radio-frequency ablation (RFA). Its incidence has been reported to be 0.02% to 0.07% after trans-thoracic cutting needle biopsy (TTNB) of lung lesions. Clinical impact is devastating in most cases, with a high rate of death and catastrophic sequelae (myocardial infarction, stroke). Prompt reco...

Slow Pathway Ablation. Introduction: The relationship between temperature at the electrode-tissue interface and the loss of AV and ventriculoatrial (VA) conduction is not established, and the optimal target temperature for the slow pathway approach to radiofrequency ablation of AV nodal reentrant tachycardia (AVNRT) is unknown. Therefore, the purpose of this study was to compare target temperat...