What are David J. Callans, MD main services?
ablation arrhythmogenic focus, ablation av node, ablation for supraventricular tachycardia, ablation for ventricular tachycardia, atrial fibrillation ablation, atrial fibrillation cryoablation, atrial fibrillation radiofrequency ablation, cardiac ablation, cardiac device implant, cardiac devices, cardiac implantable device replacement, cardiac mapping, cardiac resynchronization therapy, cardioversion, defibrillator malfunction, holter monitor, implantable cardiac monitor procedure, implantable cardioverter defibrillator placement, implantable defibrillator, intracardiac catheter ablation, loop recorder, pacemaker, pacemaker and icd interrogation, pacemaker placement, pulmonary vein isolation, remote cardiac device monitoring, replacement of defibrillator, resynchronization therapy, surgical hybrid ablation, wearable defibrillator.