Junji Morita

ORCID: 0000-0001-7556-1396
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Cardiac Arrhythmias and Treatments
  • Cardiac pacing and defibrillation studies
  • Atrial Fibrillation Management and Outcomes
  • Cardiac electrophysiology and arrhythmias
  • Cardiac Valve Diseases and Treatments
  • Cardiovascular Syncope and Autonomic Disorders
  • Potassium and Related Disorders
  • Central Venous Catheters and Hemodialysis
  • Diagnosis and Treatment of Venous Diseases
  • Neurological disorders and treatments
  • Peripheral Artery Disease Management
  • Vascular anomalies and interventions
  • Cardiovascular Function and Risk Factors
  • Cardiac Structural Anomalies and Repair
  • Medical Imaging and Pathology Studies
  • Heart Rate Variability and Autonomic Control
  • Cardiac Imaging and Diagnostics
  • Healthcare cost, quality, practices
  • Muscle activation and electromyography studies
  • Case Reports on Hematomas
  • Viral Infections and Immunology Research
  • Heparin-Induced Thrombocytopenia and Thrombosis
  • Breast Cancer Treatment Studies
  • Orthopaedic implants and arthroplasty
  • Electrostatic Discharge in Electronics

Sapporo Science Center
2021-2025

Kokura Memorial Hospital
2016-2021

Memorial Hospital
2020

Kurashiki Central Hospital
2012-2014

Cavotricuspid isthmus (CTI)-dependent atrial flutter (AFL) is difficult to manage with antiarrhythmic drugs, radiofrequency (RF) ablation being the standard treatment. However, achieving a bidirectional CTI block can be challenging due complex anatomy and epicardial-endocardial breakthrough (EEB). This case report illustrates that cryoablation serve as an effective bail-out strategy achieve permanent when RF fails, particularly in cases complicated by EEB. We present of 66-year-old woman who...

10.1016/j.ipej.2025.02.004 article EN cc-by-nc-nd Indian Pacing and Electrophysiology Journal 2025-02-01

This case discusses the retrieval of a pacemaker with vegetation from 78-year-old man. It suggests that grasping side Micra body and pulling into Agilis sheath is possible technique for retrieval.

10.1002/joa3.12814 article EN cc-by Journal of Arrhythmia 2023-01-04

Abstract Background The incidence, predictors, and clinical impact of lead break during transvenous extraction (TLE) were previously unknown. Methods We included consecutive patients who underwent TLE between September 2013 July 2019 at our institute. Lead removal was defined as stretching becoming misshapen, assessed by fluoroscopy. Results A total 246 for 501 leads. At a patient level, complete success achieved in 226 (91.9%). 481 leads (96.0%) completely removed 101 (20.1%) broken the...

10.1002/joa3.12524 article EN cc-by Journal of Arrhythmia 2021-03-15

Hemidiaphragm paralysis, a complication of catheter ablation for atrial fibrillation, can severely affect respiratory function and lead to paradoxical breathing dyspnea on exertion. A 75-year-old woman with iatrogenic diaphragm paralysis showed improved symptoms, function, exercise tolerance after video-assisted thoracoscopic plication. Radiofrequency is the primary treatment drug-resistant symptomatic fibrillation. Iatrogenic right common pulmonary vein isolation superior vena cava...

10.1002/joa3.13039 article EN cc-by-nc-nd Journal of Arrhythmia 2024-04-21

Key Clinical Message The newly‐proposed tandem approach, Wire ThRoUgh Snare Twice (Wire TRUST) is effective for grasping a lead with inaccessible ends. This case report shows that TRUST can also enable successful extraction of left ventricular by iteratively and repositioning to the distal portion lead.

10.1002/ccr3.9039 article EN cc-by-nc Clinical Case Reports 2024-06-01

Abstract Introduction Transvenous lead extraction (TLE) is a crucial procedure for managing cardiac implantable electronic devices. The use of combined superior and femoral approach has been found to enhance the success rate TLE. This report introduces novel technique, named “Wire ThRoUgh Snare Twice” (Wire TRUST), effectively grasping without free end during Method Wire TRUST technique was applied in case involving 49‐year‐old male patient requiring TLE due electrical artifact on right...

10.1111/jce.16041 article EN cc-by Journal of Cardiovascular Electrophysiology 2023-08-14

Sinus arrestCardiac massage Figure 1.(A) A 26-mm SAPIEN 3 deployed via a transfemoral approach.(B) Electrocardiographic monitoring within few hours after TAVI showing the unexpected sinus arrest.(C) percutaneous leadless transcatheter pacemaker Micra™ developed approach.TAVI = aortic valve implantation.

10.4070/kcj.2018.0024 article EN Korean Circulation Journal 2018-01-01

We report the case of a 74-year-old man with previously implanted pacemaker lead. He had undergone Medtronic™ Micra Transcatheter Pacing System (TPS, Medtronic plc, MN, USA) implantation because lead fracture. new TPS and retrieved dislodged one. used multiple-loop snare (EN snare®) an 8.5F steerable sheath (Agilis NXT; St. Jude Medical, St Paul, USA). The was obstructed by chordae tendineae tricuspid valve pushed to apex site; this enabled us move away from body caught in inferior vena cava...

10.1016/j.ipej.2018.05.001 article EN cc-by-nc-nd Indian Pacing and Electrophysiology Journal 2018-05-25

Transvenous lead extraction (TLE) is an indispensable procedure in the management of cardiac implantable electronic devices.1 TLE typically performed via superior approach. If cannot be completed with approach, femoral vein approach may necessary to complete extraction.2 The Needle's Eye Snare (NES) (Cook Medical Inc.), which consists a threader and "cobra head" component, useful tool for grasping inaccessible ends (Figure 1A,B).3 "spaghetti twisting" technique, enables operators easily...

10.1002/joa3.12890 article EN cc-by Journal of Arrhythmia 2023-07-02

Introduction A 54-year-old man with superior vena cava occlusion was referred to our institution for an upgrade cardiac resynchronization therapy defibrillator. Methods and results Right ventricular lead extraction modified venoplasty, rocket-shape crossing technique (RCT), performed. In RCT, the integration of inflated balloon, halfway inside laser sheath, sheath are advanced through like a “rocket-shape crossing”. Conclusion Modified venoplasty can be useful during device upgrades in...

10.22541/au.170670505.51422066/v1 preprint EN Authorea (Authorea) 2024-01-31

The sheath-in-sheath technique, utilizing a 15Fr cryoballoon delivery sheath inserted into 25 cm 16Fr sheath, effectively navigates tortuous iliac veins during ablation for atrial fibrillation, ensuring safe and maintaining essential device performance without complications.

10.1002/ccr3.9257 article EN cc-by-nc Clinical Case Reports 2024-08-01

An implantable cardiac monitor (ICM) is a device that placed subcutaneously for the continuous monitoring of patient's rhythm up to several years [1]. This particularly valuable identifying cause unexplained syncope, and it offers long-term determine any correlations between symptoms [2, 3]. In this report, we describe case in which P-wave oversensing (PWOS) by ICM prevented episodes bradycardia or pauses from being detected during syncope. A 78-year-old male patient experienced multiple...

10.1111/jce.16550 article EN cc-by-nc Journal of Cardiovascular Electrophysiology 2024-12-17

An 86-year-old male with progressive palpitations and dyspnea was referred to our hospital for heart failure treatment. Catheter ablation performed atrial flutter as we suspected tachycardia-induced cardiomyopathy the cause of patient's failure. Due difficulty securing a peripheral venous route, 6-Fr sheath inserted via right common femoral vein prior administering general anesthesia. While attempting insert mapping catheter, became lodged subsequently fractured during removal. Percutaneous...

10.1016/j.jccase.2023.06.007 article EN cc-by Journal of Cardiology Cases 2023-07-04

A 62-year-old woman with dilated cardiomyopathy, left ventricular (LV) ejection fraction (LVEF) of 26%, and bundle branch block (QRS interval, 160 ms) underwent cardiac resynchronization therapy (CRT) defibrillator placement (Gallant; Abbott, Chicago, IL, US). After right lead placement, a coronary sinus (CS) guiding catheter (GC) (CPS Direct; Abbott) was engaged. The preoperative echocardiogram showed poorer motion in the posterior region compared to anterior side. therefore chosen for LV...

10.1016/j.cjco.2023.11.016 article EN cc-by-nc-nd CJC Open 2023-11-19

Giant-cell myocarditis is a fatal autoimmune disorder that often associated with other diseases. We herein describe case of giant-cell complicated by heparin-induced thrombocytopenia (HIT). A 71-year-old woman was admitted to our hospital due palpitations and ptosis. Echocardiography revealed hypokinesis in the left basal ventricular walls. Heart failure gradually developed, condition HIT. The patient died cardiogenic septic shock caused agranulocytosis. An autopsy showed myocarditis. When...

10.2169/internalmedicine.51.8161 article EN Internal Medicine 2012-01-01
Coming Soon ...