Tetsuya Matoba

Temporal trends in initial rhythms of out-of-hospital cardiac arrest in an aging society: a nationwide analysis from Japan

Naoya Kataoka, Teruhiko Imamura, Koichiro Kinugawa, Naohiro Yonemoto et autres

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REAL-WORLD STUDY ON THE EFFECTIVENESS OF STANDARD OF CARE IN LOWERING LDL-C LEVELS FOR PRIMARY PREVENTION OF ATHEROSCLEROTIC CARDIOVASCULAR DISEASE IN JAPAN

Hayato Tada, Junya Ako, Hidehiro Kaneko, Kenichi Tsujita et autres

Development and External Validation of a Machine Learning-Based Bleeding Risk Score for Patients Undergoing Percutaneous Coronary Intervention

Tatsuya Tokai, Masanobu Ishii, So Ikebe, Taishi Nakamura et autres

Background: Conventional bleeding risk scores after percutaneous coronary intervention (PCI) have limited discrimination and external validation, so we developed and validated a machine learning (ML)-based bleeding risk score using real-world data. Methods and Results: The primary outcome was major bleeding. In the …

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Profiles and Prognostic Value of a Non-Invasive Liver Fibrosis Marker in Patients With Acute and Chronic Coronary Syndrome ― Insights From the CLIDAS-PCI ―

Wataru Saitoh, Takenobu Shimada, Daiju Fukuda, Atsushi Shibata et autres

Background: The Fibrosis-4 (Fib-4) index, a non-invasive liver fibrosis marker, is useful for assessing cardiovascular risk; however, its role and profiles in patients with acute coronary syndrome (ACS) and chronic coronary syndrome (CCS) remain unclear. Methods and Results: We analyzed 5,150 patients …

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Regional Intensity of Outpatient Cardiovascular Testing and Cardiac-Origin Out-of-Hospital Cardiac Arrest ― A 10-Year Nationwide Ecological Study Using the All-Japan Utstein Registry ―

Hiroki Sato, Naohiko Takahashi, Naohiro Yonemoto, Tetsuya Matoba et autres

Background: Cardiac-origin out-of-hospital cardiac arrest (CO-OHCA) remains a public health challenge, and variations in its incidence may reflect differences in cardiovascular care. We investigated whether the intensity of regional outpatient cardiovascular diagnostic testing was associated with the CO-OHCA incidence among adults aged …

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Does ECG-Based AI Detect Aortic Stenosis Beyond Conventional LVH Criteria? An Analysis of the CLIDAS Database

Takenobu Shimada, Satoshi Kodera, Shinnosuke Sawano, JingChuan Guan et autres

Abstract Background Aortic stenosis (AS) is a progressive valvular disease associated with poor prognosis once symptoms develop, yet routine echocardiographic screening is impractical. While artificial intelligence (AI)-based electrocardiogram (ECG) models have shown promise for AS detection, it remains unclear whether they primarily …

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Prognostic value of pretest probability of heart failure with preserved ejection fraction in patients with coronary artery disease: an insight from the CLIDAS-PCI database

Tomoaki Nishikawa, Shunsuke Tamaki, Kazuhisa Nishimura, Yasutaka Ihara et autres

Coronary artery disease (CAD) is a major risk factor for the development of heart failure (HF) with preserved ejection fraction (HFpEF) and is associated with increased mortality. However, an optimal strategy to screen for HFpEF among patients with CAD has not yet …

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Peak aortic jet velocity as a predictor of short- and long-term outcomes following percutaneous coronary intervention

Takamasa Iwai, Kensuke Takagi, Takeshi Kitai, Yasuhide Asaumi et autres

Background: Coronary artery disease (CAD) and aortic valve stenosis (AS) often coexist, with AS exacerbating myocardial ischemia and affecting prognosis. Aims: To investigate the prognostic impact of AS stratified by peak aortic jet velocity (AV-Vel) in patients undergoing PCI. Methods and results: …

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Etiology-specific predictors for short-term functional outcomes of OHCA: A Japanese Nationwide registry study

Satoru Hanada, Michikazu Nakai, Shohei Koyama, Hironao Iwakiri et autres

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Optimizing Single-Lead Electrocardiogram Orientation Improves Detection of Left Ventricular Dysfunction

Hisaki Makimoto, Takayuki Okatani, Masafumi Sato, Shinnosuke Sawano et autres

BACKGROUND: Single-lead electrocardiograms (ECGs) contain subtle markers of left ventricular (LV) dysfunction. We hypothesized that a synthesized frontal-plane vector would improve single-lead detection of reduced LV ejection fraction (LVEF) compared with standard limb leads. METHODS AND RESULTS: This diagnostic study used paired …

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Hypernetwork-Based Adaptive Aggregation for Multimodal Multiple-Instance Learning in Predicting Coronary Calcium Debulking

Kaito Shiku, Ichika Seo, Tetsuya Matoba, R Hino et autres

In this paper, we present the first attempt to estimate the necessity of debulking coronary artery calcifications from computed tomography (CT) images. We formulate this task as a Multiple-instance Learning (MIL) problem. The difficulty of this task lies in that physicians adjust …

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Myocardial Stunning Induced by Vasospasm Within an Intercoronary Communication

Genryu Mizokami, S Katsuki, Y Nakano, Keiji Oi et autres

BACKGROUND: Intercoronary communication (ICC) is an extremely rare congenital coronary anomaly that is generally considered benign. We herein report a novel case in which an ICC itself caused coronary vasospasm, leading to myocardial ischemia. CASE SUMMARY: A 79-year-old woman presented with rest …

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