Publications by authors named "Kenjiro Ishigami"

Background: Anticoagulation therapy for atrial fibrillation (AF) has undergone major changes following the introduction of direct oral anticoagulants (DOAC) in 2011. However, the transition of anticoagulation therapy for AF patients with severe renal dysfunction remains to be elucidated.

Methods And Results: Follow-up data, including creatinine clearance (CrCl), were available for 3,706 patients in the Fushimi AF Registry.

View Article and Find Full Text PDF

Background: Palliative care, including symptom alleviation and advance-care planning, is relevant for patients with heart failure (HF). The Supportive and Palliative Care Indicator Tool (SPICT) is a tool for identifying patients who may benefit from palliative-care assistance but has not been validated in patients hospitalized due to HF.

Methods And Results: Clinical backgrounds, symptom burdens and outcomes were evaluated using the SPICT as assessed on admission in consecutive hospitalized patients with HF.

View Article and Find Full Text PDF

Aims: Atrial fibrillation (AF) increases the risk of heart failure (HF); however, little is known regarding the risk stratification for incident HF in AF patients, especially with preserved left ventricular ejection fraction (LVEF).

Methods And Results: The Fushimi AF Registry is a community-based prospective survey of AF patients. From the registry, 3002 non-valvular AF patients with preserved LVEF and with the data of antero-posterior left atrial diameter (LAD) at enrolment were investigated.

View Article and Find Full Text PDF

Aims: Atrial fibrillation (AF) increases the risk of heart failure (HF); however, little focus has been placed on the prevention of HF in patients with AF. Left ventricular ejection fraction (LVEF) is an established echocardiographic parameter in HF patients. We sought to investigate the association of LVEF with HF events in AF patients without pre-existing HF.

View Article and Find Full Text PDF

Background: Molnupiravir is being widely used as a treatment for coronavirus disease 2019 (COVID-19); however, its acceptability and safety in older patients aged ≥ 80 years in real-world clinical practice is not well understood.

Methods: We conducted a single-centre retrospective study and assessed the outcome of patients with COVID-19 treated with molnupiravir according to the following criteria: (A) discontinuation rate of molnupiravir; (B) type, frequency, and severity of adverse events; (C) all-cause mortality within 30 days of the diagnosis of COVID-19.

Results: Forty-seven patients (46.

View Article and Find Full Text PDF

Aims: Previous studies have shown that proteinuria is independently associated with the incidence of atrial fibrillation (AF), and is also associated with the incidence of cardiovascular events such as stroke and thromboembolism in patients with AF. However, the association of proteinuria with heart failure (HF) events in patients with AF remains unclear.

Methods And Results: The Fushimi AF Registry is a community-based prospective study of patients with AF.

View Article and Find Full Text PDF

Unlabelled: We report an 85-year-old woman with caseous calcification of mitral annulus (CCMA), a rare variant of mitral annular calcification with caseous degeneration, in which imaging findings were useful for elucidating the pathogenesis and diagnosis. Since the CCMA is considered to be benign, it is important for clinicians to differentiate CCMA from other cardiac masses using multi-modality imaging in order to avoid unnecessary surgery. To the best of our knowledge, there is a paucity of literature regarding cardiac magnetic resonance (CMR) parametric mapping, an emerging technique, for evaluating CCMA.

View Article and Find Full Text PDF

Unlabelled: Infective endocarditis (IE) is not a common disease, but it remains a serious condition. Antineutrophil cytoplasmic antibodies (ANCA) are often positive in IE, and discrimination between IE and ANCA-associated vasculitis is important because misdirected selection of therapy can lead to catastrophic consequences. We report a case of IE mimicking ANCA-associated vasculitis in which we were able to make a correct diagnosis and perform treatment.

View Article and Find Full Text PDF

Background: Atrial fibrillation (AF) patients often have concomitant coronary artery disease (CAD); however, there are little data on clinical characteristics and outcomes of such patients in daily clinical practice in Japan.

Methods and results: The Fushimi AF Registry is a community-based prospective survey of AF patients in Fushimi-ku, Kyoto, Japan. Follow-up data were available for 4,464 patients, and the median follow up was 5.

View Article and Find Full Text PDF

Background: Atrial fibrillation (AF) increases the risk of stroke and death. Oral anticoagulants (OAC) are highly effective in reducing the risk of stroke, and direct oral anticoagulants (DOAC) became available worldwide in 2011.

Methods and results: The Fushimi AF Registry is an on-going prospective survey of AF patients in Fushimi-ku, Kyoto, Japan.

View Article and Find Full Text PDF

The ELDERCARE-AF trial demonstrated that low-dose edoxaban prevented stroke or systemic embolism (SE) in very elderly Japanese patients with non-valvular atrial fibrillation (NVAF) in whom standard oral anticoagulant therapy was inappropriate because of high bleeding risk. The aim of this study was to elucidate the characteristics and outcomes of such patients in routine clinical practice. Data were extracted from the Fushimi AF Registry for ELDERCARE-eligible NVAF patients aged ≥80 years, with a CHADS score ≥2 and ≥1 bleeding risk factors, as shown in the ELDERCARE-AF trial.

View Article and Find Full Text PDF

Objective The severity of mitral regurgitation (MR) dynamically changes during a stress test. Isometric handgrip is a readily-available stress test in daily practice; however, little is known regarding the response to isometric handgrip in MR patients during right heart catheterization. We aimed to evaluate this issue from our case-series study.

View Article and Find Full Text PDF

Aims: The risk of adverse events in atrial fibrillation (AF) patients was commonly stratified by risk factors or clinical risk scores. Risk factors often do not occur in isolation and are often found in multimorbidity 'clusters' which may have prognostic implications. We aimed to perform cluster analysis in a cohort of AF patients and to assess the outcomes and prognostic implications of the identified comorbidity cluster phenotypes.

View Article and Find Full Text PDF

Direct-current (DC) cardioversion is effective at terminating arrhythmias in an emergency. During treatment, energy delivery synchronizing with the QRS complex is essential to avoid ventricular fibrillation (VF) caused by a shock on the T wave, which is the vulnerable period of ventricular repolarization. However, distinguishing the QRS from the T wave is difficult in some patients with abnormal, irregular, and varying QRS complexes.

View Article and Find Full Text PDF

Aims: Oral anticoagulants reduce the risk of ischaemic stroke but may increase the risk of major bleeding in atrial fibrillation (AF) patients. Little is known about the clinical outcomes of patients after a major bleeding event. This study assessed the outcomes of AF patients after major bleeding.

View Article and Find Full Text PDF

Background: Heart rate (HR) is an important factor in atrial fibrillation (AF); however, it remains unclear whether the impact of HR differs between paroxysmal AF and sustained (persistent and permanent) AF.

Methods and results: The association of resting HR during AF with adverse events (composite of all-cause death, hospitalization for heart failure, stroke/systemic embolisms, myocardial infarction, and arrhythmic events) in 1,064 paroxysmal and 1,610 sustained AF patients from the Fushimi AF Registry were investigated. These patients were divided into 4 groups based on their resting HR; ≥110 beats/min (bpm), 80-109 bpm, 60-79 bpm, and <60 bpm.

View Article and Find Full Text PDF

Data regarding the associations of anemia (hemoglobin level <13.0 g/dl in men and <12.0 g/dl in women) with clinical outcomes in patients with atrial fibrillation (AF) remains scarce.

View Article and Find Full Text PDF

Background: There is a growing burden of valvular heart disease (VHD) and atrial fibrillation (AF) due to population aging, but data regarding the characteristics and outcomes of patients with AF and concomitant VHD are lacking.

Methods and results: The Fushimi AF Registry is a community-based prospective survey of AF patients in Fushimi-ku, Kyoto. Among 3,566 patients with available echocardiographic data, 20% had VHD, consisting of 131 valvular AF (VAF: 3.

View Article and Find Full Text PDF

Background: Antithrombotic therapies that are optimal for atrial fibrillation (AF) patients undergoing percutaneous coronary intervention (PCI) have been studied but remain uncertain. We often encounter difficulties in choosing an appropriate antithrombotic therapy with antiplatelet agents after PCI in AF patients treated with oral anticoagulant due to a high CHADS score. Since there are no data on the incidences of PCI procedures in AF patients, we evaluated those incidences as well as the association between PCI and the CHADS score using data from the Fushimi AF Registry.

View Article and Find Full Text PDF

Spontaneous coronary artery dissection (SCAD) is a rare cause of acute coronary syndrome. SCAD frequently affects women, and may be associated with pregnancy and the peripartum period. Therefore, female sex hormones are thought to play a pathogenetic role.

View Article and Find Full Text PDF

A 72-year-old woman presented with acute onset of shortness of breath and fatigue over several days, and was found to be in acute respiratory failure. Computed tomography of the chest revealed diffuse ground-glass opacities, crazy-paving, multiple nodules, and a large mass in the right lower lobe. She was diagnosed with B-cell lymphoma and a pulmonary lymphoproliferative disorder (PLD).

View Article and Find Full Text PDF