Publications by authors named "Keisuke Ido"

Background: There are limited data on the efficacy of smartphone-based personal health records (PHRs) in patients with cardiovascular disease. This study aimed to examine the processes, outcomes and challenges associated with the implementation of integrated PHRs in patients with heart failure (HF) or coronary artery disease (CAD).

Methods: This prospective single-group study evaluated the effects of a PHR system with the capability to capture electronic health records and vital signs in patients with HF or CAD.

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Article Synopsis
  • Thromboembolism is a critical concern in patients undergoing endovascular treatment for ruptured cerebral aneurysms, and administering antiplatelet agents like aspirin before the procedure may lower this risk.
  • The study, called ASTOP, is a multicenter, randomized, double-blind trial involving 484 patients, comparing the effects of 200 mg of aspirin versus a placebo prior to treatment.
  • Primary outcomes will focus on measuring thromboembolic complications and ischemic lesions during the procedure, while secondary outcomes will assess cerebral ischemic events, bleeding incidents, and patient functional status after 90 days.
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Background: The authors report a case of symptomatic cavernous sinus (CS) dural arteriovenous fistula (dAVF) that was successfully treated using direct puncture of the superior ophthalmic vein (SOV) with craniotomy. CS dAVF is commonly treated using transvenous embolization (TVE), with the most common access route via the inferior petrosal sinus (IPS). However, this route is sometimes unavailable because of an occluded, hypoplastic, aplastic, or tortuous IPS.

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Electroencephalographic studies of working memory have demonstrated cortical activity and oscillatory representations without clarifying how the stored information is retained in the brain. To address this gap, we measured scalp electroencephalography data, while participants performed a modified n-back working memory task. We calculated the current intensities from the estimated cortical currents by introducing a statistical map generated using Neurosynth as prior information.

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Article Synopsis
  • - This study aims to analyze differences in ocular biometric parameters, specifically axial length (AL), by gender and generation among Japanese individuals using data from the Tohoku Medical Megabank Organization (ToMMo) Eye Study.
  • - A total of 33,483 participants were examined through interviews, ophthalmic tests, and microarray analysis, with genome-wide association studies (GWASs) conducted in two stages to identify genetic variants associated with AL.
  • - The results showed a significant difference in mean AL between right and left eyes, along with the identification of 1478 AL-associated single nucleotide polymorphisms (SNPs) across 31 loci, including known loci linked to refractive errors and corneal curvature.
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Background: After the Great East Japan Earthquake in 2011, backup systems for clinical information were launched in Japan. The system in Miyagi Prefecture called the Miyagi Medical and Welfare Information Network (MMWIN) is used as a health information exchange network to share clinical information among various medical facilities for patients who have opted in. Hospitals and clinics specializing in chronic renal failure require patients' data and records during hemodialysis to facilitate communication in daily clinical activity and preparedness for disasters.

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Objective: Standard thrombectomy techniques, including stent retrieval and a direct aspiration first pass technique, are not effective when the occluded vessel is narrow and sharply bifurcated from the main trunk. Here, we present a new and alternative method for patients with such anatomical features and describe two cases treated by this method.

Case Presentations: Case 1 was a 66-year-old woman who presented with consciousness disturbance and left hemiparesis.

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Treatment options for cerebral infarction beyond the time window of reperfusion therapy are limited, and novel approaches are needed. PDGF-B is considered neuroprotective; however, it is difficult to administer at effective concentrations to infarct areas. Nanoparticles (NPs) are small and stable; therefore, we modified PDGF-B to the surface of naturally occurring heat shock protein NPs (HSPNPs) to examine its therapeutic effect in cerebral infarction.

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Objective: We sought to examine whether the effect of treatment modality and drugs for cerebral vasospasm on clinical outcomes differs between elderly and non-elderly subarachnoid hemorrhage (SAH) patients in Japan.

Methods: We analyzed the J-ASPECT Study Diagnosis Procedure Combination database (n = 17,343) that underwent clipping or coiling between 2010 and 2014 in 579 hospitals. We stratified patients into two groups according to their age (elderly [≥75 years old], n = 3,885; non-elderly, n = 13,458).

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Article Synopsis
  • * A systematic review and the modified Delphi method were used to create 29 QIs, and we found that measuring adherence to 6 of these QIs was feasible based on data from over 396,000 stroke patients.
  • * The study revealed significant variation in adherence rates among hospitals, indicating that the DPC database can efficiently collect data for evaluating stroke care quality at a lower cost.
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Background: The epidemiology of patients with traumatic brain injury (TBI) has changed dramatically over recent decades as a result of rapid advances in aging societies. We assessed the influence of age on outcomes of patients with TBI and sought to identify prognostic factors for in-hospital mortality of TBI among elderly patients.

Methods: Using a nationwide database, we analyzed data from 5651 patients with TBI.

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On March 11, 2011, the Great East Japan Earthquake and ensuing tsunami that hit the northeastern coastal region of Japan caused about 18,000 casualties and destroyed numerous buildings. Additionally, many medical facilities were damaged and patient medical records lost. In order to maintain patient clinical information, a prefectural medical network system, the Miyagi Medical and Welfare Information Network (MMWIN), began providing backup data storage services in 2013 for hospitals, clinics, pharmacies, and other care facilities as a precaution for upcoming disasters.

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Objectives: This cross-sectional survey explored the characteristics and outcomes of direct oral anticoagulant (DOAC)-associated nontraumatic intracerebral hemorrhages (ICHs) by analyzing a large nationwide Japanese discharge database.

Methods: We analyzed data from 2,245 patients who experienced ICHs while taking anticoagulants (DOAC: 227; warfarin: 2,018) and were urgently hospitalized at 621 institutions in Japan between April 2010 and March 2015. We compared the DOAC- and warfarin-treated patients based on their backgrounds, ICH severities, antiplatelet therapies at admission, hematoma removal surgeries, reversal agents, mortality rates, and modified Rankin Scale scores at discharge.

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Objective: To report a newly developed intraluminal triple-balloon shunt designed to preserve the blood flow of both the internal carotid artery (ICA) and the external carotid artery (ECA) during carotid endarterectomy in patients with a previous ipsilateral extracranial-intracranial bypass, in whom hemodynamic cerebral ischemia might be caused by cross-clamping at the ICA as well as the ECA.

Methods: The novel device consists of 3 silicone tubes equipped with balloons at each end. The design facilitates insertion proximally to the common carotid artery and distally to both the ICA and the ECA.

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Here we report a case of spinal dural arteriovenous fistula that was diagnosed on MRA and CTA, and then treated by endovascular embolization. A 56-year-old male presented with slowly progressive intermittent claudication and numbness of the lower extremities. T2-weighted MR imaging showed the swelling of the spinal cord with an intramedullary high signal intensity area and dilated vessels with signal flow void at the dorsal aspect of spinal cord.

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Background: Variety of information relating between genome and the pathological findings in disease will yield a wealth of clues to discover new function, the role of genes and pathways, and future medicine. In addition to molecular information such as gene expression and genome copy number, detailed clinical information is essential for such systematic omics analysis.

Results: In order to provide a basic platform to realize a future medicine based on the integration of molecular and clinico-pathological information of disease, we have developed an integrated clinical omics database (iCOD) in which comprehensive disease information of the patients is collected, including not only molecular omics data such as CGH (Comparative Genomic Hybridization) and gene expression profiles but also comprehensive clinical information such as clinical manifestations, medical images (CT, X-ray, ultrasounds, etc), laboratory tests, drug histories, pathological findings and even life-style/environmental information.

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Objective: With the aim of making good use of internationally accumulated genomic sequence variation data, which is increasing rapidly due to the explosive amount of genomic research at present, the development of an interoperable data exchange format and its international standardization are necessary. Genomic Sequence Variation Markup Language (GSVML) will focus on genomic sequence variation data and human health applications, such as gene based medicine or pharmacogenomics.

Design And Method: We developed GSVML through eight steps, based on case analysis and domain investigations.

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Prediction of the disease status is one of the most important objectives of genetic studies. To select the genes with strong evidence of the association with type 2 diabetes mellitus, we validated the associations of the seven candidate loci extracted in our earlier study by genotyping the samples in two independent sample panels. However, except for KCNQ1, the association of none of the remaining seven loci was replicated.

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In order to realize gene-based medicine, a number of key challenges must be overcome. Construction of infrastructure capable of integrating genetic and clinical information is one of those challenges. The Genomic Sequence Variation Markup Language (GSVML) and the Health Level Seven Version 3 (HL7v3) are important electronic data exchange standards for clinical genome infrastructure, and compatibility between these two standards will promote the above integration.

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