Very high-power short-duration radiofrequency ablation in patients with typical atrial flutter: rationale and design of the FASD-HP randomized trial.

Background: The aim of cavotricuspid isthmus (CTI)-dependent flutter ablation is the bidirectional conduction block of the CTI. Very-high-power short-duration (vHPSD) radiofrequency ablation aims to minimize conductive heating and increase resistive heating to create shallower but wider lesions in a very short time, while reducing the risk of collateral tissue damage. Experimental studies have shown that it produces effective transmural lesions with an equal or better safety profile compared to conventional parameters.

Dissociated rhythms between donor and recipient hearts after heart transplantation using the modified bicaval technique.

Unlabelled: The modified bicaval anastomosis technique is an orthotopic heart transplantation technique that preserves the posterior wall of the right atrium as a bridging tissue, creating a dual structure of the recipient and donor hearts between the superior and inferior venae cavae. In this report, we present a case with unique electrophysiological findings following heart transplantation using this technique. The patient, who had persistent atrial fibrillation before the procedure, achieved a maintained sinus rhythm afterward.

Association between red cell distribution width-to-lymphocyte ratio and 30-day mortality in patients with ischemic stroke: a retrospective cohort study.

Objectives: Ischaemic stroke (IS) has become a major health problem globally as it is one of the leading causes of long-term disability and death. This study aimed to evaluate the association between red cell distribution width (RDW) to lymphocyte (LYM) ratio (RLR) and 30-day mortality risk in patients with IS.

Methods: The present study employed a retrospectively cohort study design with the adult data extracted from the Medical Information Mart for Intensive Care (MIMIC-III, MIMIC-IV) databases between 2001 and 2019.

Screening for undiagnosed atrial fibrillation using an electronic health record‒based clinical prediction model: clinical pilot implementation initiative.

Background: Atrial fibrillation (AF) is a major risk factor for ischemic stroke, and early AF diagnosis may reduce associated morbidity and mortality. A 10-variable predictive model (UNAFIED) was previously developed to estimate patients' 2-year AF risk. This study evaluated a clinical workflow incorporating UNAFIED for screening, education, and follow-up evaluation of patients visiting a cardiology clinic who may be at an elevated risk of developing AF within 2 years.

Multielectrode Radiofrequency Balloon Catheter for Paroxysmal Atrial Fibrillation: Results From the Global, Multicenter, STELLAR Study.

Introduction: The safety and efficacy of paroxysmal atrial fibrillation (PAF) ablation with the HELIOSTAR multielectrode radiofrequency (RF) balloon catheter have been demonstrated in European studies; data from elsewhere are lacking. This prospective, multicenter study conducted in the United States, Italy, and China investigated the safety and efficacy of pulmonary vein isolation (PVI) using HELIOSTAR in drug-refractory symptomatic PAF.

Methods: The primary effectiveness endpoint (PEE) was 12-month freedom from documented atrial fibrillation/atrial flutter/atrial tachycardia plus freedom from acute procedural failure, nonstudy catheter failure, repeat ablation failure, direct current cardioversion (DCCV), and Class I/III antiarrhythmic drug (AAD) failure.

Differential Cardiotoxicity of Ibrutinib Versus Chemoimmunotherapy in Chronic Lymphocytic Leukemia: A Population-Based Study.

Chronic lymphocytic leukaemia (CLL) is the most common form of leukaemia among adults, particularly in Western nations. The introduction of Bruton's tyrosine kinase (BTK) inhibitors as a treatment of CLL, namely, ibrutinib, which is a first-generation BTK inhibitor, has significantly improved the treatment landscape for CLL. However, ibrutinib has been associated with an increased risk of atrial fibrillation (AF) and hypertension.

Prognostic Value of Ultra-Short Heart Rate Variability Measures Obtained from Electrocardiogram Recordings of Hospitalized Patients Diagnosed with Non-ST-Elevation Myocardial Infarction.

Myocardial infarction (MI) is a common emergency with high rates of morbidity and mortality. Current risk stratification scores for non-ST-elevation MI (NSTEMI) use subjective or delayed information. Heart rate variability was shown to correlate with prognosis following MI.

Underappreciated Relationship: A Case of Type A Aortic Dissection Presented With Atrial Flutter.

Aortic dissection (AD) is a life-threatening emergency involving a tear in the aortic intima, leading to a false lumen. Atrial fibrillation (AF) can complicate AD, increasing management challenges and mortality risks. We report a 67-year-old male with no known past medical history who presented with a 1-day history of abdominal pain.

Marked conduction time prolongation observed during atrial tachycardia originating from a giant left atrial appendage.

We experienced a rare case of atrial flutter originating from the giant left appendage (LAA). The local potential of the ablation catheter presented with a rare finding, appearing up to 185 ms earlier than the surface P-wave in the distal LAA. With thoracoscopic LAA clipping, tachycardia was successfully controlled.

In the face of confounders: Atrial fibrillation detection - Practitioners vs. ChatGPT.

Introduction: Atrial fibrillation (AF) is the most common arrhythmia in clinical practice, yet interpretation concerns among healthcare providers persist. Confounding factors contribute to false-positive and false-negative AF diagnoses, leading to potential omissions. Artificial intelligence advancements show promise in electrocardiogram (ECG) interpretation.

Efficacy and Safety of High-Power Short-Duration Ablation for Cavo-Tricuspid Isthmus With a Flexible-Tip Temperature-Controlled Power Regulation Catheter Performed by Electrophysiology Trainees.

Introduction: The suitability of high-power short-duration (HPSD) cavo-tricuspid isthmus ablation (CTI-Abl) for electrophysiology (EP) trainees, as well as the underlying mechanisms of its efficacy, remain unknown. The aim of this study was to clarify the efficacy and safety of HPSD CTI-Abl performed by EP trainees and assess lesion characteristics between HPSD and moderate-power long duration (MPLD) ablations.

Methods: Study 1: CTI-Abl was performed by first- to fourth-year EP trainees in consecutive 113 patients (67 ± 11 years, 27.

Characterization of Myocardial Recovery in Patients With Tachycardiomyopathy.

Background: The degree and time course of improvement in left ventricular (LV) function with treatment in patients with tachycardiomyopathy (TCMP) is highly variable. This study aims to clinically characterize the recovery of TCMP based on the extent and course of improvement in LV function and identify predictors of complete myocardial recovery.

Methods: In this prospective, single-center, observational study, patients with suspected TCMP who underwent successful tachyarrhythmia termination/control were included.

Local atrial bipolar electrogram voltage drops during cardiac magnetic resonance guided catheter ablation of typical atrial flutter: Associations with delivered radiofrequency energy and peri-procedural imaging.

Background: Cardiac magnetic resonance (CMR)-guided catheter ablation of the cavotricuspid isthmus (CTI) has been proven feasible, but determinants of local electrogram (EGM) voltage drops during radiofrequency (RF) applications are unknown.

Objective: The purpose of this study was to investigate local atrial bipolar EGM voltage drops and the association with delivered RF energy and anatomical information derived from peri-procedural CMR imaging.

Methods: In consecutive patients undergoing CMR-guided CTI ablation procedures, relative EGM voltage drops for RF applications ≥20 seconds were calculated.