Shuhei Kobayashi

Clinical Impact of Interlesion Distance on Acute Pulmonary Vein Isolation Success in Patients With Paroxysmal Atrial Fibrillation

Keika Oyama, Yoshihisa Naruse, Yuki Arakawa, Shuhei Kobayashi et autres

Background: Achieving pulmonary vein isolation (PVI) through contiguous lesions is important for durable PVI treatment of atrial fibrillation (AF). We hypothesized that the flexible-tip TactiFlex catheter, with its enhanced stability, would allow for successful acute PVI even with an extended interlesion distance …

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V-V-A Response in Fast-Slow AVNRT With a Bystander Concealed Nodoventricular Pathway

Hironori Nakamura, Hidehira Fukaya, Megumi Toraiwa, Wataru Shinkai et autres

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Diamond‐Embedded Temperature Control Catheter Enables Faster and More Efficient Cavotricuspid Isthmus Ablation Compared to Contact Force Sensing Catheters

Megumi Toraiwa, Hidehira Fukaya, Wataru Shinkai, Sho Ogiso et autres

ABSTRACT Background Cavotricuspid isthmus (CTI) ablation is a well‐established treatment for atrial flutter (AFL). The DiamondTemp (DT) catheter provides precise real‐time tissue temperature feedback during radiofrequency (RF) ablation, optimizing energy delivery. While the efficacy of DT in ablation procedures has been demonstrated, …

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A Case of Silicone Allergy Induced by a Subcutaneous Implantable Cardioverter Defibrillator

Wataru Shinkai, Jun Kishihara, Megumi Toraiwa, Yuki Arakawa et autres

Background: Allergic reactions associated with subcutaneous implantable cardioverter-defibrillator (S-ICD) are extremely rare, and silicone-related cases are scarcely reported. Methods and Results: A 54-year-old man with a transvenous implantable cardioverter-defibrillator (TV-ICD) for idiopathic ventricular fibrillation underwent removal of an infected TV-ICD system, followed …

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Can electric-powered carts used in public transportation change long-term care risk among older adults?: evidence from a 2-year follow-up survey

Masaki Fukusada, Masashige Saito, Ryota Watanabe, Shuhei Kobayashi et autres

BACKGROUND: Amid rapid population aging in Japan, declining public transport use has created substantial barriers to older adults' mobility and independence. Such services address first-/last-mile gaps and enable social participation, which are key determinants of healthy aging in community settings. We examined …

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Female Sex as a Major Risk Factor for Dabigatran‐Induced Esophagitis in Atrial Fibrillation Ablation

Daiki Saito, Hidehira Fukaya, Takuya Wada, Jun Oikawa et autres

ABSTRACT Background Uninterrupted dabigatran administration is recommended for periprocedural anticoagulation during catheter ablation (CA) for atrial fibrillation (AF). Although dabigatran‐induced esophagitis (DIE) is not uncommon after CA, its risk factors remain unclear. Methods We retrospectively enrolled consecutive AF patients who underwent CA …

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A Novel Risk Score for Predicting the Difficulty in Leadless Pacemaker Implantation

Naruya Ishizue, Hidehira Fukaya, Jun Oikawa, Wataru Shinkai et autres

INTRODUCTION: MICRA, a leadless pacemaker system, is an established modality for cardiac pacing. However, its implantation can sometimes be technically challenging. This study aimed to identify anatomical factors associated with procedural difficulty during MICRA implantation, with a particular focus on preoperative CT …

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Canagliflozin restores electrical properties and suppresses structural damage in isoproterenol-induced myocardial injury models

Lisa Kitasato, Yusuke Murayama, Naruya Ishizue, Shuhei Kobayashi et autres

Canagliflozin (Cana), a sodium-glucose cotransporter 2 (SGLT2) inhibitor with additional affinity for SGLT1, has demonstrated cardioprotective effects. However, its role in modulating ventricular electrophysiology and structural remodeling under stress conditions remains insufficiently characterized. We have previously reported electrical and structural remodeling in …

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[Association between subjective change and risk of disability in older adults following the introduction of electric-powered carts: A one-year longitudinal study].

Ryota Watanabe, Masashige Saito, Shuhei Kobayashi, Kazushige Ide et autres

Objective The Ministry of Land, Infrastructure, Transport, and Tourism of Japan has recently been promoting the adoption of green (i.e., electric-powered) slow mobility carts, which can operate on public roads at speeds <20 km/h. A two-month trial of electric-powered cart services showed …

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[The association between public transportation electric-powered cart stoppage and the risk of incident functional disability in older people: A longitudinal study comparing three waves of data (pre-operation, post-operation, and post-stoppage)].

Shuhei Kobayashi, Kazushige Ide, Ryota Watanabe, Masaki Fukusada et autres

Objective Green-slow mobility (electric-powered carts), with travel speeds below 20 km/h on public roads, is expected to promote outings and social participation, potentially reducing the risk of functional disabilities. When electric-powered cart operations stop in a community, outings and social connections may …

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Protocol for a prospective, multicenter, randomized, controlled trial comparing pulsed field ablation vs. cryoballoon ablation in patients with persistent atrial fibrillation (PEACE trial)

Hidehira Fukaya, Jun Oikawa, Tomoharu Yoshizawa, Akira Satoh et autres

Background: Catheter ablation has become a standard treatment for atrial fibrillation (AF). However, evidence regarding the efficacy and safety of pulsed field ablation (PFA) in patients with persistent AF (PeAF) remains limited. The PEACE trial aims to evaluate the efficacy and safety …

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CI-499642-001 A NOVEL RISK SCORE FOR PREDICTING DIFFICULTY IN LEADLESS PACEMAKER IMPLANTATION

Naruya Ishizue, Hidehira Fukaya, Jun Oikawa, Yuki Arakawa et autres