702 results match your criteria: "Tsuchiura Kyodo General Hospital[Affiliation]"
Circ Cardiovasc Imaging
December 2024
Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston. (D.F., D.K., K.S., T.N., M.C., I.M., I.-K.J.).
Background: Coronary artery calcium score (CACS) is widely used for risk stratification. However, in patients with established coronary artery disease, its clinical implication and relationship with plaque vulnerability are unclear. We sought to correlate the CACS and plaque vulnerability assessed by optical coherence tomography.
View Article and Find Full Text PDFHeart
December 2024
Division of Cardiology, Cardiovascular and Thoracic Department, "Citta della Salute e della Scienza" Hospital, Turin, Italy
Background: Accurate discrimination of functionally significant coronary stenosis using intravascular imaging remains uncertain, particularly with regard to vessel size. This meta-analysis evaluates the diagnostic performance of intravascular ultrasound (IVUS) and optical coherence tomography (OCT) for identifying functionally significant coronary stenosis as confirmed by fractional flow reserve (FFR).
Methods: A systematic search of PubMed, Scopus and Google Scholar identified studies that assessed the diagnostic accuracy of IVUS and OCT by minimal luminal area (MLA) with FFR as the reference standard.
Hellenic J Cardiol
December 2024
Division of Cardiovascular Medicine, Tsuchiura Kyodo General Hospital, Ibaraki, Japan. Electronic address:
Background: Epicardial stenosis and coronary microvascular dysfunction (CMD) may coexist in patients with chronic coronary syndrome (CCS). Microvascular resistance reserve (MRR) has been demonstrated to be a valid cross-modality metric using continuous saline infusion thermodilution and intracoronary Doppler flow velocity methods. This study aimed to investigate the prevalence and diagnostic concordance of CMD defined by MRR using two methods-stress transthoracic Doppler echocardiography (S-TDE) and the invasive bolus thermodilution method (B-Thermo)-in patients with functionally significant epicardial stenosis.
View Article and Find Full Text PDFCirc Rep
December 2024
Department of Cardiovascular Medicine, Tsuchiura Kyodo General Hospital Ibaraki Japan.
Int J Cardiovasc Imaging
December 2024
Departments of Cardiology, Amsterdam Cardiovascular Sciences, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
The introduction of wire-free microcirculatory resistance index from functional angiography (angio-IMR) promises swift detection of coronary microvascular dysfunction, however it has not been properly validated. We sought to validate angio-IMR against invasive IMR and PET derived microvascular resistance (MVR). Moreover, we studied if angio-IMR could aid in the detection of ischemia with non-obstructive coronary arteries (INOCA).
View Article and Find Full Text PDFActa Derm Venereol
December 2024
Department of Dermatology, Tsuchiura Kyodo General Hospital, Ibaraki, Japan.
J Ultrason
December 2024
Center for Medical Science, Ibaraki Prefectural University of Health Sciences, Ami, Japan.
Cureus
October 2024
Center for Medical Science, Ibaraki Prefectural University of Health Sciences, Ami, JPN.
Circ J
November 2024
Division of Cardiovascular Medicine, Tsuchiura Kyodo General Hospital.
Background: Global coronary flow reserve (G-CFR) impairment represents coronary microvascular dysfunction (CMD) and correlates with poor prognosis. Hyperemic coronary flow is reduced in conventional CMD, but normal or mildly reduced with elevated resting flow in endogenous-type CMD (E-CMD). This retrospective study assessed the prognostic value of post-percutaneous coronary intervention (PCI) CMD, focusing on E-CMD.
View Article and Find Full Text PDFWorld Neurosurg
December 2024
Department of Endovascular Surgery, Institute of Science Tokyo, Tokyo, Japan. Electronic address:
Background: Endovascular treatment has become the preferred approach for managing unruptured cerebral aneurysms, with simple and balloon-assisted coil embolization as the standard first-line therapy. However, recanalization after coil embolization remains a major clinical concern. This study aimed to evaluate the predictive factors for recanalization using time-of-flight magnetic resonance (TOF-MR) angiography.
View Article and Find Full Text PDFAllergol Int
August 2024
Department of Respiratory Medicine, Tokyo Medical and Dental University, Tokyo, Japan. Electronic address:
Background: The latest guidelines on hypersensitivity pneumonitis (HP) categorise the disease as either fibrotic or non-fibrotic because of the greater clinical utility of this stratification. However, the prevalence and incidence of fibrotic and non-fibrotic HP are unknown. This study assessed the exact prevalence and incidence of fibrotic and non-fibrotic HP in Japan in 2021.
View Article and Find Full Text PDFSci Rep
November 2024
Department of Cardiovascular Medicine, Tsuchiura Kyodo General Hospital, Ibaraki, Japan.
Coronary flow capacity (CFC) integrates quantitative assessment of hyperemic myocardial blood flow and coronary flow reserve. We aimed to evaluate the effect of elective percutaneous coronary revascularization (PCI) on CFC using serial stress transthoracic Doppler echocardiography (STDE). Overall, 148 stable patients underwent STDE of the left anterior descending arteries (LAD), before and after elective PCI.
View Article and Find Full Text PDFEur Heart J Cardiovasc Imaging
November 2024
Departments of Cardiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.
Aims: The relationship between coronary artery atherosclerosis and microvascular resistance remains unclear. This study aims to clarify the relationship between total atherosclerotic and vessel-specific atherosclerotic burden and microvascular resistance reserve (MRR).
Methods And Results: In this post-hoc analysis of the PACIFIC 1 trial, symptomatic patients without prior coronary artery disease (CAD) underwent [15O]H2O positron emission tomography, coronary computed tomography angiography (CCTA) and invasive fractional flow reserve (FFR).
J Cardiovasc Comput Tomogr
November 2024
Department of Internal Medicine and Cardiovascular Center, Seoul National University Hospital, Seoul, South Korea; Institute on Aging, Seoul National University, Seoul, South Korea. Electronic address:
Background: The fat attenuation index (FAI) measured using coronary computed tomography angiography (CCTA) enables the direct evaluation of pericoronary adipose tissue composition and vascular inflammation. We aimed to investigate the association of fractional flow reserve (FFR) and plaque vulnerability with coronary inflammation.
Methods: Patients with suspected coronary artery disease (CAD) who underwent CCTA and invasive FFR measurements within 90-day were included.
Neurosurgery
October 2024
Department of Neurosurgery, Yamaguchi University School of Medicine, Ube, Yamaguchi, Japan.
Acta Derm Venereol
October 2024
Department of Dermatology, Tsuchiura Kyodo General Hospital, Ibaraki, Japan.
J Stroke Cerebrovasc Dis
December 2024
Department of Neurology, Tsuchiura Kyodo General Hospital, Japan.
BMJ Neurol Open
October 2024
Department of Neurology, Tsuchiura Kyodo General Hospital, Tsuchiura-shi, Ibaraki, Japan.
Cureus
September 2024
Center for Medical Science, Ibaraki Prefectural University of Health Sciences, Ami, JPN.
Objective: Although shear-wave elastography (SWE) can be used to assess muscle stiffness, SWE assessments are expensive. Echo intensity (EI) is an indicator of muscle quality and can potentially be used to assess muscle stiffness. This study aimed to determine the relationship between the EI and Young's modulus of the soleus (SOL) muscle after ankle fracture surgery.
View Article and Find Full Text PDFBMC Emerg Med
October 2024
Department of Acute Critical Care and Disaster Medicine, Tokyo Medical and Dental University Graduate School of Medicine and Dental Sciences, 1-5-45 Yushima, Bunkyo-ku, Tokyo, Japan.
J Cardiovasc Magn Reson
December 2024
Division of Cardiovascular Medicine, Tsuchiura Kyodo General Hospital, Tsuchiura City, Ibaraki, Japan. Electronic address:
Background: Impaired global coronary flow reserve (G-CFR), evaluated through phase-contrast cine cardiovascular magnetic resonance (PC-CMR), has been linked to worse outcomes in patients with cardiovascular disease. This study aimed to investigate the prognostic value of G-CFR improvement, as evaluated using PC-CMR imaging pre- and post-percutaneous coronary intervention (PCI).
Methods: In this single-center study, 320 patients with chronic coronary syndrome (CCS) who underwent pre- and post-PCI PC-CMR measurements were followed up to determine major adverse cardiac or cerebrovascular events (MACCE) predictors.
PLoS One
September 2024
Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan.
J Cardiovasc Comput Tomogr
November 2024
Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. Electronic address:
Artif Organs
September 2024
Department of Anesthesiology and Critical Care Medicine, Fujita Health University School of Medicine, Toyoake, Aichi, Japan.
Background: Polymyxin-B direct hemoperfusion (PMX-DHP) is an endotoxin adsorption column-based blood purification therapy. Since one of the most potent effects of PMX-DHP is blood pressure elevations, it may be the most effective when it is introduced at the time when the need for vasopressors is the greatest, which, in turn, may reduce mortality.
Methods: A multicenter retrospective study was conducted at 24 ICUs in Japan.
J Cardiovasc Comput Tomogr
November 2024
Gill Gray Research Laboratory, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. Electronic address:
Background: The relationship between plaque burden and microscopic characterization of plaque features as it pertains to clinical presentation has not been fully investigated. The aim of this study was to compare the relationship between plaque burden and plaque vulnerability in patients with acute coronary syndromes (ACS) versus chronic coronary syndrome (CCS).
Methods: Patients who underwent both coronary computed tomography angiography (CTA) and optical coherence tomography (OCT) before coronary intervention were enrolled.