Focal impulse and rotor modulation as a stand-alone procedure for the treatment of paroxysmal atrial fibrillation: A within-patient controlled study with implanted cardiac monitoring.

Background: Focal impulse and rotor modulation (FIRM) has been proposed as a novel approach for the treatment of atrial fibrillation (AF).

Objective: This study aimed to investigate the efficacy of FIRM as a stand-alone procedure for the treatment of paroxysmal AF.

Methods: A total of 27 patients with paroxysmal AF underwent sequential biatrial computational mapping.

Determinants of cardiac vagal regulation: a cross-sectional study in a general population.

Attenuated cardiac vagal regulation indicates an increased risk of cardiac events, but the reasons for this impaired regulation are not well known. Cardiac vagal regulation was measured in 5.408 subjects (2627 men and 2781 women) who underwent short term (100s) ECG recordings during controlled deep respiration (0.

Evaluation of spatiotemporal organization of persistent atrial fibrillation with time- and frequency-domain measures in humans.

Aims: Areas with complex fractionated electrograms are commonly targeted during ablation of persistent atrial fibrillation (AF). These signals are, however, found in most sampled areas of the left atrium (LA), implying the need for further differentiation.

Methods And Results: Electrograms were recorded over 60 s at eight different LA endocardial sites in 10 patients with persistent AF, using a fully automated algorithm.

Implantable cardioverter defibrillator dysfunction during and after magnetic resonance imaging.

This report describes a patient in whom a MRI of the brain was performed without realizing that an ICD had been implanted 8 days previously. Electromagnetic noise induced during the MRI was detected as ventricular fibrillation and nearly caused inappropriate shocks. Charge time during MRI was prolonged.