Kakeru Ishihara

Cardiac rupture due to Takotsubo syndrome complicated by a myocardial bridge: a case series

Kakeru Ishihara, Hideki Miyachi, Takeshi Yamamoto, Kuniya Asai

Background: Takotsubo syndrome is characterized by transient left ventricular systolic dysfunction, without obstructive coronary artery disease. Myocardial bridge, where a coronary artery courses intramurally, may provoke ischaemia and trigger Takotsubo syndrome. Although both conditions typically have favourable outcomes, we encountered two cases …

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Determining the optimal timing of pacemaker implantation for complete atrioventricular block after alcohol septal ablation in hypertrophic obstructive cardiomyopathy

K Koyama, Yukichi Tokita, Kakeru Ishihara, J Matsuda et autres

Abstract Background Complete atrioventricular block (CAVB) is a common complication following alcohol septal ablation (ASA) for hypertrophic obstructive cardiomyopathy (HOCM). CAVB occurs because the proximal septal branch, the target artery in ASA, supplies a critical part of the interventricular conduction system. As …

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Large stent frame deformation in a self-expandable transcatheter heart valve after valve-in-valve implantation for failed surgical valve

Tetsuro Shimura, Masanori Yamamoto, Kakeru Ishihara, Yusuke Okubo et autres

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Reply to letter to the editor: “Long-term clinical outcomes after alcohol septal ablation for hypertrophic obstructive cardiomyopathy in Japan: a retrospective study”

Junya Matsuda, Hitoshi Takano, Yoichi Imori, Kakeru Ishihara et autres

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Optimal ablation pattern on intraprocedural echocardiography is associated with favorable clinical outcomes of alcohol septal ablation for hypertrophic obstructive cardiomyopathy

Junya Matsuda, Yukichi Tokita, Lisa Hoshika, Kentaro Koyama et autres

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Long-term clinical outcomes after alcohol septal ablation for hypertrophic obstructive cardiomyopathy in Japan: a retrospective study

Junya Matsuda, Hitoshi Takano, Yoichi Imori, Kakeru Ishihara et autres

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Abstract 4139663: Impact of Catheter Ablation for Atrial Fibrillation on Clinical Outcomes in Hypertrophic Cardiomyopathy: Findings from the REVEAL-HCM Study

Kentaro Koyama, Yukichi Tokita, Kakeru Ishihara, Junya Matsuda et autres

Background: Atrial fibrillation (AF) is the most common arrhythmia associated with hypertrophic cardiomyopathy (HCM), and patients with HCM complicated by AF are known to have a poor prognosis. Although many studies have reported the efficacy of catheter ablation (CA) for AF in …

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Predictive Factors for Decreasing Left Ventricular Ejection Fraction and Progression to the Dilated Phase of Hypertrophic Cardiomyopathy

Kakeru Ishihara, Yoshiaki Kubota, Junya Matsuda, Yoichi Imori et autres

Patients with hypertrophic cardiomyopathy (HCM) may progress to the dilated phase (DHCM). This study aimed to identify the predictive factors for DHCM progression, including left ventricular (LV) ejection fraction (LVEF < 50%) or decreased LV contraction (LVEF < 60%). The study included …

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Abstract 12589: Left Ventricular Unloading Preserves Ventricular Function and Reduces New-Onset Atrial Fibrillation in Patients With Acute Myocardial Infarction Complicated by Cardiogenic Shock

Junya Matsuda, Kakeru Ishihara, Eiichiro Oka, Reiko Shiomura et autres

Introduction: Left ventricular (LV) unloading by percutaneous ventricular assist device (pVAD) reduces myocardial workload and oxygen consumption and provides a new concept for improving outcome for acute myocardial infarction complicated with cardiogenic shock (AMI-CS). AMI results in reduced LV ejection fraction and …

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Predictive scoring method for declining left ventricular ejection fraction in hypertrophic cardiomyopathy

Kakeru Ishihara, Yoshiaki Kubota, Junya Matsuda, Yoichi Imori et autres

Abstract Background The transition to the dilated phase, as well as sudden cardiac death, is one of the most undesirable scenarios for patients with hypertrophic cardiomyopathy (HCM). Although the dilated phase of HCM (DHCM) is defined as left ventricular ejection fraction (LVEF) …

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Intracoronary air embolism with Brugada-type electrocardiographic change after transbronchial lung biopsy

Kakeru Ishihara, Junsuke Shibuya, Eitaro Kodani, Wataru Shimizu

A 67-year-old woman had been treated with chemotherapy for breast cancer for 10 months. She was admitted to our hospital for transbronchial lung biopsy (TBLB) because multiple mass lesions were found predominantly within the left lung on chest computed tomography (CT). Just …

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[Percutaneous adjustable pulmonary artery band].

Masafumi Higashidate, Yukihiro Harada, Kakeru Ishihara, Hiromi Kurosawa et autres

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