Journal of Arrhythmia

Progress of treadmill exercise testing in Case 1 Each electrocardiogram shows the maximum load. Before left cardiac sympathetic denervation, polymorphic ventricular tachycardias were observed. After left cardiac sympathetic denervation, no ventricular arrhythmias were induced during exercise.

No abstract text is available yet for this article.

BACKGROUND: Laser balloon (LB) pulmonary vein isolation (PVI) is an established ablation technique for atrial fibrillation (AF). We report long-term follow-up and procedural data of LB-PVI and we compare the first and second LB generation. METHODS: Patients undergoing LB ablation with first- (LB1) or second-generation LB (LB2) for AF were retrospectively enrolled and divided into two groups. Procedural endpoint was complete PVI. Clinical success was defined as no recurrence of AF/atrial tachycardia after a 90 days blanking period...

An extremely high generator impedance in the blood pool can be observed in a patient with severe polycythemia. However, ablation can be performed safely as long as the generator impedance during contact with the myocardial tissue is within acceptable limits.

Anamorelin, a ghrelin receptor agonist, is used for cancer-related cachexia but can induce life-threatening arrhythmias. A case study illustrates an extremely wide QRS tachycardia, posing diagnostic challenges. Anamorelin cessation led to normalization, highlighting the importance of ECG monitoring, particularly in liver-compromised patients, and hemodynamic support are crucial during suspected toxicity.

INTRODUCTION: Atrial fibrillation (AF) represents the most common arrhythmia in the postoperative setting. We aimed to investigate the incidence of postoperative AF (POAF) and determine its predictors, with a specific focus on inflammation markers. METHODS: We performed a retrospective single tertiary center cohort study including consecutive adult patients who underwent a major surgical procedure between January 2016 and January 2020. Patients were divided into four subgroups according to the type of surgery...

BACKGROUND: Catheter ablation in the pediatric population using fluoroscopy has been known to cause adverse events. This study aims to assess the effectiveness and safety of zero fluoroscopy (ZF) and near-ZF-guided catheter ablation for the treatment of arrhythmias in the pediatric population. METHODS: The PubMed, Embase, and Cochrane library databases were searched and reviewed for relevant studies. Outcomes of interest include safety, short-term, and long-term effectiveness...

BACKGROUND: Previous studies have shown inconsistent results in clinical effectiveness between cryoballoon ablation (CBA) and radiofrequency ablation (RFA), and cost assessment between the procedures is important. The aim of this study was to evaluate the clinical effectiveness and cost-effectiveness between the procedures in patients with paroxysmal atrial fibrillation (AF) refractory to antiarrhythmic drug therapy. METHODS: A systematic review and meta-analysis were performed...

INTRODUCTION: Atrial fibrillation (AF) and heart failure (HF) commonly coexist, resulting in adverse health and economic consequences such as declining ventricular function, heightened mortality, and reduced quality of life. However, limited information exists on the impact of COVID-19 on AF patients that hospitalized for HF. METHODS: We analyzed the 2020 U.S. National Inpatient Sample to investigate the effects of COVID-19 on AF patients that primarily hospitalized for HF...

BACKGROUND: The impact of delaying atrial fibrillation catheter ablation (AFCA) for antiarrhythmic drug (AAD) management on the disease course remains unclear. This study investigated AFCA rhythm outcomes based on the diagnosis-to-ablation time (DAT) and AAD responsiveness in participants with persistent AF (PeAF). METHODS: We included data from 1038 AAD-resistant PeAF participants, all of whom had a clear time point for AF diagnosis, especially PeAF at diagnosis time, and had undergone an AFCA for the first time...

This case of PJRT shows negative linking on ventriculoatrial intervals after atrial differential pacing. Interpreting the results of atrial differential pacing may be challenging in cases where the pacing site affects retrograde conduction or when retrograde conduction is unstable.

BACKGROUND: There is limited research on the intra-individual efficacy of ventricular pacing minimization algorithms developed by Biotronik-the Ventricular Pace Suppression algorithm (VpS) and the Intrinsic Rhythm Support plus algorithm (IRSplus) (BIOTRONIK SE & Co. KG, Berlin, Germany). We performed a randomized pilot trial that evaluated the efficacy of two algorithms in patients with symptomatic sinus node dysfunction (SND) who received a dual-chamber pacemaker. METHODS: The trial was conducted in 11 tertiary hospitals in South Korea...

No abstract text is available yet for this article.

The tachycardia which presents with regularly irregular rhythm consists of a broad set of differential diagnoses. We present a case of cycle length alternans tachycardia in a patient, with Ebstein's anomaly and describe how a diagnosis was arrived at after careful analysis of electrocardiogram and EGMs.

Obstruction of a systemic venous pathway is relatively common after the Mustard operation. A helix-fixation leadless pacemaker was successfully implanted in the subpulmonic but morphologic LV in a d-TGA patient with post-Mustard baffle stenosis and failure of a previously implanted epicardial lead.

No abstract text is available yet for this article.

No abstract text is available yet for this article.

Epicardial connections provided the anatomical substrate for the biatrial reentry circuit. The connections between the right atrium and right pulmonary vein were called "intercaval bundle," and there are few reports of atrial flutter related to this bundle. We present a case of a biatrial tachycardia, involving the intercaval bundle.

No abstract text is available yet for this article.

BACKGROUND: Blood pressure variability has been found to be a predictor of a stroke, heart failure, and ischemic heart disease that is independent of blood pressure control. This study used the variability independent of the mean (VIM) to evaluate the visit-to-visit blood pressure variability in patients previously undergoing catheter ablation (CA) of paroxysmal atrial fibrillation (PAF), and its relationship with AF recurrence was examined. METHOD AND RESULTS: The subjects were 274 consecutive PAF patients who underwent CA at our hospital...