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  1. Article

    Open Access

    Risk prediction of inappropriate implantable cardioverter-defibrillator therapy using machine learning

    We aimed to develop machine learning-based predictive models for identifying inappropriate implantable cardioverter-defibrillator (ICD) therapy. Our study included 182 consecutive cases (average age 62.2 ± 4.5...

    Ryo Tateishi, Makoto Suzuki, Masato Shimizu, Hiroshi Shimada… in Scientific Reports (2023)

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    Article

    Characteristics of Marshall bundle-related atrial tachycardias using an ultrahigh-resolution map** system

    Marshall bundle (MB)-related atrial tachycardias (ATs) have already been described; however, their characteristics using an ultrahigh-resolution map** system are not yet well known. The purpose of this study...

    Iwanari Kawamura, Seiji Fukamizu… in Journal of Interventional Cardiac Electrop… (2019)

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    Chapter

    Bundle Branch Reentrant Ventricular Tachycardia

    Macroreentrant circuit involving the bundle branches or the fascicles can develop bundle branch reentrant ventricular tachycardia (BBR-VT) in patients with conduction disturbance within the His-Purkinje system...

    Mitsuhiro Nishizaki, Seiji Fukamizu, Harumizu Sakurada in Catheter Ablation (2018)

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    Reference Work Entry In depth

    J Wave and Fragmented QRS Formation as a Biomarker

    The presence of the J wave and fragmented QRS (fQRS) in 12 lead electrocardiography has been known for decades. However, their significance for cardiac prognosis and/or arrhythmogenesis has only recently been ...

    Masato Shimizu, Mitsuhiro Nishizaki in Biomarkers in Cardiovascular Disease (2016)

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    Living Reference Work Entry In depth

    J Wave and Fragmented QRS Formation as a Biomarker

    The presence of the J wave and fragmented QRS (fQRS) in 12 lead electrocardiography has been known for decades. However, their significance for cardiac prognosis and/or arrhythmogenesis has only recently been ...

    Masato Shimizu, Mitsuhiro Nishizaki in Biomarkers in Cardiovascular Disease

  6. No Access

    Article

    ST-T wave changes in a patient complicated with vasospastic angina and Brugada syndrome: differential responses to acetylcholine in right and left coronary artery

    A 49-year-old man with chest pain and syncope presented saddleback or occasionally coved type ST elevation in V1–V3. Coronary spasm in the left anterior descending artery was induced by acetylcholine injection...

    Mitsuhiro Nishizaki, Hiroyuki Fujii, Takashi Ashikaga… in Heart and Vessels (2008)

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    Article

    Case Report: Alternating Exit Sites in Reentry Circuit of Ventricular Tachycardia with Nonischemic Cardiomyopathy – Relationship between Ablation Site and Inner Loop

    We present a patient with nonischemic cardiomyopathy who had ventricular tachycardia (VT) with QRS morphology alternans. VTs of two QRS morphologies (VT1 and VT2) exhibiting a right bundle branch block pattern...

    Mitsuhiro Nishizaki, Takashi Ashikaga… in Journal of Interventional Cardiac Electrop… (2001)