Publications by authors named "Kunihiko Matsui"

Background: Mineralocorticoid receptor (MR) induces cardiac inflammation cooperatively with nuclear factor-κB and signal transducer and activator of transcription 3 (STAT3); MR blockers exert anti-inflammatory effects. However, the underlying mechanism remains unclear. We investigated the anti-inflammatory effect of esaxerenone, a novel MR blocker, in experimental myocardial infarction (MI) and its underlying mechanisms.

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  • Subclinical leaflet thrombosis (SLT) can lead to failure of transcatheter heart valves (THV) after TAVI, prompting this study to investigate its formation and related thrombotic factors.
  • In a study of 26 patients treated with edoxaban for atrial fibrillation undergoing TAVI, SLT was observed in 16.7% of patients at one week, decreasing to 5.9% by three months.
  • It was found that patients with SLT at one week had reduced maximal leaflet thickness, while thrombogenicity initially dropped but began to rise again by three months post-TAVI, indicating complex dynamics in thrombus formation in the early recovery phase.
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The number of patients with atrial fibrillation is increasing, and frailty prevalence increases with age, posing challenges for physicians in prescribing anticoagulants to such patients because of possible harm. The effects of frailty on anticoagulant therapy in older Japanese patients with nonvalvular atrial fibrillation (NVAF) are unclear. Herein, we prescribed rivaroxaban to Japanese patients with NVAF and monitored for a mean of 2.

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  • The AFIRE trial showed that rivaroxaban alone is as effective as rivaroxaban with an antiplatelet in patients with atrial fibrillation and stable coronary artery disease, while being safer.
  • A post hoc analysis revealed that the benefits of rivaroxaban monotherapy were particularly significant in patients who had previously undergone revascularisation.
  • For those without prior revascularisation, there was no notable difference in efficacy, although there was a significant safety advantage for monotherapy concerning bleeding risks.
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A recent meta-analysis found no benefit of uric acid-lowering therapy including febuxostat on death, cardiovascular events, or renal impairment. However, there may be populations that benefit from febuxostat in reducing mortality and cerebral and cardiovascular events. The aim of the present study was to examine the clinical benefit of febuxostat in elderly patients stratified by age using Febuxostat for Cerebral and CaRdiorenovascular Events PrEvEntion StuDy (FREED) data.

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  • Esaxerenone's effectiveness and safety were evaluated in patients with uncontrolled hypertension and left ventricular hypertrophy, primarily focusing on its impact while they were also taking other medications.
  • The 24-week study involved 60 patients, revealing significant decreases in morning and bedtime blood pressure and left ventricular mass index, along with mild adverse events.
  • Results suggest that esaxerenone is both effective in lowering blood pressure and safe for hypertensive patients with cardiac issues, indicating its potential as a beneficial treatment option.
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Background Thrombocytopenia poses a risk of bleeding in patients with chronic coronary syndrome after coronary intervention. However, whether thrombocytopenia also increases the bleeding risk in patients with atrial fibrillation and chronic coronary syndrome remains unclear. Methods and Results This study evaluated the AFIRE (Atrial Fibrillation and Ischemic Events With Rivaroxaban in Patients With Stable Coronary Artery Disease) trial.

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Objective: Antithrombotic therapy is essential for patients with atrial fibrillation (AF) and stable coronary artery disease (CAD) because of the high risk of thrombosis, whereas a combination of antiplatelets and anticoagulants is associated with a high risk of bleeding. We sought to develop and validate a machine-learning-based model to predict future adverse events.

Methods: Data from 2215 patients with AF and stable CAD enrolled in the Atrial Fibrillation and Ischaemic Events With Rivaroxaban in Patients With Stable Coronary Artery Disease trial were randomly assigned to the development and validation cohorts.

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  • The study investigates how urate-lowering treatment with febuxostat affects kidney outcomes in elderly patients with high cardiovascular risk and high uric acid levels.
  • It was part of the FREED trial, which included 1,070 patients divided into febuxostat and non-febuxostat groups.
  • Results showed that febuxostat significantly reduced the risk of worsening macroalbuminuria by 56%, but did not significantly alter other kidney-related outcomes.
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Background: The AFIRE (Atrial Fibrillation and Ischemic Events With Rivaroxaban in Patients With Stable Coronary Artery Disease) trial showed both noninferiority for efficacy and superiority for safety endpoints of rivaroxaban monotherapy compared with those of rivaroxaban plus antiplatelet therapy (combination therapy) in patients with atrial fibrillation and stable coronary artery disease.

Objectives: This study sought to evaluate outcomes of rivaroxaban monotherapy in those patients across body mass index (BMI) categories.

Methods: Patients were categorized into 4 groups: underweight (BMI <18.

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Contrary to other developed countries, in Japan, recent years have seen increases in cervical cancer incidence and mortality among young people. However, the human papillomavirus (HPV) vaccine program, a key measure for avoiding cervical cancer, has been virtually suspended. Temporal changes in cervical cancer profiles in this unique situation have not been fully investigated epidemiologically.

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Background: Oral anticoagulation therapy is essential for preventing stroke in patients with atrial fibrillation (AF). However, poor anticoagulant adherence may hamper medication safety and effective prevention of stroke.

Methods: GENERAL is a prospective cohort study of AF patients taking rivaroxaban prescribed by general practitioners in Japan.

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Importance: Appropriate regimens of antithrombotic therapy for patients with atrial fibrillation (AF) and coronary artery disease (CAD) have not yet been established.

Objective: To compare the total number of thrombotic and/or bleeding events between rivaroxaban monotherapy and combined rivaroxaban and antiplatelet therapy in such patients.

Design, Setting, And Participants: This was a post hoc secondary analysis of the Atrial Fibrillation and Ischemic Events With Rivaroxaban in Patients With Stable Coronary Artery Disease (AFIRE) open-label, randomized clinical trial.

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Background:  Rivaroxaban monotherapy was noninferior to combination therapy (rivaroxaban plus antiplatelet therapy) in efficacy but superior in safety in the Atrial Fibrillation and Ischemic Events with Rivaroxaban in Patients with Stable Coronary Artery Disease (AFIRE) trial. Among 2,215 patients with atrial fibrillation (AF) and stable coronary artery disease (CAD), 1,378 had baseline creatinine clearance (CrCl) ≥50 mL/min and received 10 (underdose) or 15 mg/d (standard-dose) rivaroxaban. We aimed to assess the effects of rivaroxaban underdose on clinical outcomes.

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Purpose: Inflammation plays an important role in the initiation and progression of atherosclerosis, leading to poor clinical outcomes. Hyperuricemia is associated with the activation of the Nod-like receptor protein 3 inflammasome. Here, we investigated whether inhibition of inflammation using febuxostat lowered the risk of cardiovascular events.

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Background: The success of antithrombotic therapies is assessed based on thrombotic and bleeding events. Simultaneously assessing both kinds of events might be challenging, and recurrent bleeding events are often ignored. We tried to confirm the effects of kidney function on outcome events in patients undergoing antithrombotic therapy.

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The complication of left ventricular (LV) hypertrophy (LVH) is associated with increased incidence of major cardiovascular events. Hypertension is an independent risk factor among several factors contributing to the development of LVH, and thus appropriate treatment of both hypertension and LVH reduces the risk of developing heart failure. Mineralocorticoid-receptor blockers (MRBs) have been reported to improve the prognosis of LVH, but use of currently available MRBs is limited by adverse events.

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Background: We previously reported on the FREED study, which found that febuxostat reduced the risk of adverse clinical outcome in patients with asymptomatic hyperuricemia without gout. We have now investigated outcomes in subgroups of FREED patients with and without a history of cardiovascular disease (CVD).

Methods: We performed a post hoc subgroup analysis of 1070 patients randomized to the febuxostat or non-febuxostat group and followed for 36 months.

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Objectives: The aim of this AFIRE (Atrial Fibrillation and Ischemic Events With Rivaroxaban in Patients With Stable Coronary Artery Disease) trial subgroup analysis was to examine rivaroxaban monotherapy benefits and their relation to the time between stenting and enrollment among patients after coronary stenting.

Background: Of 2,215 patients with atrial fibrillation and stable coronary artery disease in the AFIRE trial, rivaroxaban monotherapy was noninferior to rivaroxaban plus antiplatelet therapy (combination therapy) in terms of efficacy and superior for safety endpoints. However, thrombotic risk after antiplatelet therapy cessation remained a concern among 1,444 patients who had undergone coronary stenting >1 year before enrollment.

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Background Among patients with atrial fibrillation and stable coronary artery disease, those with histories of atherothrombotic disease are at high-risk for future ischemic events. This study investigated the efficacy and safety of rivaroxaban monotherapy in patients with atrial fibrillation, coronary artery disease, and histories of atherothrombotic disease. Methods and Results This was a post hoc subanalysis of the AFIRE (Atrial Fibrillation and Ischemic Events With Rivaroxaban in Patients With Stable Coronary Artery Disease) trial.

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