Impact of Pre-reperfusion Left Ventricle Unloading on ST-segment-elevation Myocardial Infarction According to the Onset-to-Unloading Time.

It is unclear whether the impact of pre-reperfusion unloading on improving survival is sustained throughout all periods from the onset in patients with ST-segment-elevation myocardial infarction (STEMI). This study is a post-hoc analysis of the J-PVAD registry. Among all patients registered in J-PVAD between February 2020 and December 2021, patients with STEMI complicated with cardiogenic shock and treated with Impella alone support were selected.

A case of pulmonary vein reconnection after long-term success of pulmonary vein isolation for atrial fibrillation.

We describe a case where right superior pulmonary vein was not reconnected at the beginning of the third radiofrequency catheter ablation (RFCA) for atrial fibrillation but was reconnected at the beginning of the fourth RFCA. This is a case of pulmonary vein reconnection in the chronic phase after successful pulmonary vein isolation.

Predictors of late recurrence after second catheter ablation for persistent atrial fibrillation.

Background: Little has been reported on the predictors of late recurrence (LR) after second radiofrequency catheter ablation (RFCA) for persistent atrial fibrillation (AF).

Objective: This study aimed to identify the predictors of LR after second RFCA in patients with persistent AF.

Methods: We retrospectively analyzed 123 patients who underwent a second RFCA because of LR after the initial RFCA for persistent AF.

Impact of combining ablation index-guided and very high-power short-duration ablation at posterior wall adjacent to esophagus during perioperative period on procedural factors.

Introduction: The impact of combining ablation index (AI)-guided and very high-power short-duration (vHPSD) ablation on procedural factors at the posterior wall near the esophagus is unclear.

Methods: Atrial fibrillation patients who underwent initial ablation using three-dimensional mapping were enrolled. Patients were classified into two groups: those who underwent only AI-guided pulmonary vein isolation (PVI) (AI group) and those who underwent vHPSD ablation at the posterior wall adjacent to the esophagus in addition to AI-guided PVI (AI + vHPSD group).

Visualization of residual gaps after linear ablation using the LUMIPOINT module: A case report.

Background: Macroreentrant atrial tachycardia (ATs) through epicardial conduction is depicted as a focal AT on 3-D mapping, i.e., pseudo-focal AT.

Risk factors for tachycardia-induced cardiomyopathy due to atrial fibrillation.

Background: Tachycardia-induced cardiomyopathy (TIC) is a reversible cardiomyopathy with ventricular dysfunction caused by tachyarrhythmias. Notably, atrial fibrillation (AF) is the most common causal arrhythmia leading to TIC. However, the risk factors for the development of TIC due to AF remain unclear.

ST-segment depression and left ventricular systolic function recovery post-atrial fibrillation ablation in heart failure.

Aims: Catheter ablation (CA) of atrial fibrillation (AF) improves left ventricular ejection fraction (LVEF) in patients with heart failure with reduced ejection fraction (HFrEF). The impact of ST-segment depression before CA on LVEF recovery and clinical outcomes remains unknown. In the present study, we aimed to investigate the relationship between ST-segment depression during AF rhythm before CA and improvement in the LVEF and clinical outcomes in persistent atrial fibrillation (PerAF) patients with HFrEF.

Appropriate Selection of Substrate Ablation for Persistent Atrial Fibrillation Using Intraprocedural Assessment.

Background: It has not been fully elucidated which patients with persistent atrial fibrillation (PerAF) should undergo substrate ablation plus pulmonary vein isolation (PVI). This study aimed to identify PerAF patients who required substrate ablation using intraprocedural assessment of the baseline rhythm and the origin of atrial fibrillation (AF) triggers.

Methods and results: This was a post hoc subanalysis using extended data of the EARNEST-PVI trial, a prospective multicenter randomized trial comparing PVI-alone and PVI-plus (i.

Clinical Impact of Perfusion Balloon for ST-Segment Elevated Myocardial Infarction: RYUSEI Study.

Drug-eluting stents have significantly contributed to reducing mortality in patients with ST-segment elevation myocardial infarctions (STEMIs), but slow-flow/no-reflow phenomenon (SFNR) and in-stent restenosis are still clinical problems. In contrast, perfusion balloons (PBs) can compress thrombi and ruptured plaque for long inflation without ischemia and can be used as a delivery device for infusion of nitroprusside to distal risk area during ballooning. We conducted a Reduction of risk bY perfUsion balloon for ST-segment Elevated myocardial Infarction (RYUSEI) study to evaluate whether PBs before stenting are more effective than conventional stenting for STEMIs.

Successful catheter ablation of atrial tachycardia initiated with orthodromic capture of superior vena cava potentials.

A case of successful catheter ablation of paroxysmal atrial fibrillation and atrial tachycardia is reported. After pulmonary vein isolation, atrial tachycardia was induced by the use of isoproterenol and burst pacing from the catheter in the right atrium. An attempt was made to create a three-dimensional (3D) map of the atrial tachycardia, but the atrial tachycardia was terminated in the middle of the mapping.

Impact of residual induction number of non-pulmonary vein foci on the 2-year outcomes in patients with paroxysmal atrial fibrillation.

Background: Residual non-pulmonary vein (PV) foci are significantly associated with atrial fibrillation (AF) recurrence after pulmonary vein isolation (PVI). However, we previously reported among patients with non-PV foci induced only once, none experienced AF recurrence. Thus, we aimed to investigate the correlation between the residual induction number of non-PV foci and ablation outcome in paroxysmal AF patients.

Clinical impact of stellate ganglion phototherapy on ventricular tachycardia storm requiring mechanical circulatory support devices: a case report.

Background: Ventricular arrhythmias are a significant cause of morbidity and mortality in patients with ischaemic heart disease. When pharmacologic therapies, catheter ablation (CA), and implantable cardioverter defibrillator (ICD) are ineffective, stellate ganglion blockade (SGB), sympathectomy, and renal sympathetic denervation are considered. However, they are invasive for patients with high bleeding risk.

Impact of baseline yellow plaque assessed by coronary angioscopy on vascular response after stent implantation.

Background: The relationship between baseline yellow plaque (YP) and vascular response after stent implantation has not been fully investigated.

Methods: This was a sub-analysis of the Collaboration-1 study (multicenter, retrospective, observational study). A total of 88 lesions from 80 patients with chronic coronary syndrome who underwent percutaneous coronary intervention were analyzed.