Takahiro Muramatsu

ORCID: 0000-0002-5631-7395
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About
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Research Areas
  • Anesthesia and Sedative Agents
  • Urinary Tract Infections Management
  • Gastric Cancer Management and Outcomes
  • Metastasis and carcinoma case studies
  • Gastrointestinal Tumor Research and Treatment
  • Pediatric Urology and Nephrology Studies
  • Cardiac, Anesthesia and Surgical Outcomes
  • Bacterial Identification and Susceptibility Testing
  • Urinary Bladder and Prostate Research
  • Inflammatory Bowel Disease
  • Cardiac Valve Diseases and Treatments
  • Liver Diseases and Immunity
  • Anesthesia and Pain Management
  • Intensive Care Unit Cognitive Disorders
  • Airway Management and Intubation Techniques
  • Hallucinations in medical conditions
  • Diverse Music Education Insights
  • Health, Environment, Cognitive Aging
  • Mycobacterium research and diagnosis
  • Metabolism and Genetic Disorders
  • Gastrointestinal Bleeding Diagnosis and Treatment
  • Contact Dermatitis and Allergies
  • Food Allergy and Anaphylaxis Research
  • Intraoperative Neuromonitoring and Anesthetic Effects
  • Gut microbiota and health

Tokyo Medical University Hospital
2021-2024

Tokyo Medical University
2021-2023

Chiba University
2015-2023

Chiba Kaihin Municipal Hospital
2023

Kurashiki Central Hospital
2022

Chiba University Hospital
2018

National Hospital
1997

Diagnosis of perioperative anaphylaxis is often challenging. This study describes the utility a newly developed tool for identifying patients with high possibility anaphylaxis, and aimed to investigate frequency each drug during period in Japan.This included Grade 2 or higher severity general anaesthesia at 42 facilities across Japan 2019 2020. We adopted unique objective evaluation yielding composite score diagnosing which includes results skin tests basophil activation tests, clinical...

10.1016/j.bja.2023.02.018 article EN cc-by-nc-nd British Journal of Anaesthesia 2023-03-27

Abstract We evaluated whether texture and color enhancement imaging (TXI) using a high-definition ultrathin transnasal endoscope (UTE) improves the visibility of early gastric cancer (EGC) compared with white-light (WLI). This study included 31 EGCs observed by TXI mode 2 UTE prior to endoscopic submucosal dissection. The first outcome was compare differences based on Commission Internationale de l’Eclairage L*a*b* space between surrounding mucosa WLI (objective appearance EGC). second...

10.1038/s41598-023-29284-7 article EN cc-by Scientific Reports 2023-02-03

Objectives This study aimed to determine if the drug-induced lymphocyte stimulation test (DLST) for various oral mesalamines can diagnose mesalamine intolerance and predict success of retreatment in patients with adverse events (AEs) due first 5-aminosalicylate (5-ASA). Methods Data from ulcerative colitis who experienced AEs after administration 5-ASA underwent DLSTs two or more types mesalamine, including were retrospectively analyzed. Mesalamine was defined as within 6 months starting...

10.1101/2025.03.21.25324369 preprint EN cc-by medRxiv (Cold Spring Harbor Laboratory) 2025-03-23

Objective Acute hemorrhagic rectal ulcer (AHRU) is characterized by sudden, painless, and massive bleeding from ulcers. To date, few studies have analyzed the risk factors for AHRU rebleeding. In this study, we clarified of rebleeding after initial hemostasis through a multicenter study. Methods A total 149 patients diagnosed with between January 2015 May 2020 at 3 medical centers were enrolled. We retrospectively investigated following factors: age, sex, body mass index (BMI), performance...

10.2169/internalmedicine.2706-23 article EN Internal Medicine 2024-02-11

Abstract Editor’s Perspective What We Already Know about This Topic Article Tells Us That Is New Background Complete recovery from rocuronium-induced muscle paralysis with sugammadex is reported to be delayed in elderly patients. The authors tested a hypothesis that deep neuromuscular block low-dose slower (primary hypothesis) and incidence of recurarization higher (secondary patients than nonelderly Methods In anesthetized (n = 20; 76.9 ± 5.0 yr age) 53.7 12.8 under rocuronium, change...

10.1097/aln.0000000000002412 article EN Anesthesiology 2018-09-08

As the high mortality rate of gastric cancer (GC) is due to delayed diagnosis, early detection vital for improved patient outcomes. Metabolic deregulation plays an important role in GC. Although various metabolite-level biomarkers have been assessed, there still no unified method. We conducted a plasma metabolome study assess metabolites that may distinguish GC samples from non-GC samples.Blood were collected 72 patients and 29 control participants (non-GC group) at Tokyo Medical University...

10.1159/000526864 article EN Digestion 2022-11-18

Left ventricular outflow tract (LVOT) obstruction is sometimes observed in patients with severe aortic stenosis (AS). It still controversial how to manage the remaining AS, when LVOT well-controlled by medical therapy. We report a case acute recurrence of requiring emergent alcohol septal ablation (ASA) after transcatheter valve implantation (TAVI), even stable state on beta-blockers. For ASA procedure, transesophageal echocardiography was useful clearly observe perfusion area target branch...

10.1155/2018/5026190 article EN cc-by Case Reports in Cardiology 2018-12-02

術後残存筋弛緩は,術後呼吸器合併症や低酸素血症のリスクとなるため,ネオスチグミンやスガマデクスなどの筋弛緩拮抗薬投与が推奨されている.従来より使用されてきたネオスチグミンは,非脱分極性筋弛緩薬を積極的には排泄せず,天井効果もあることから深い筋弛緩状態からの回復は困難である.深い筋弛緩状態であっても自発呼吸は出現するので自発呼吸を目安としたネオスチグミン投与は,残存筋弛緩や再筋弛緩の原因となり得る.また,ネオスチグミンはそれ自体が筋弛緩作用を持つことも知られ,ネオスチグミン過量投与と術後呼吸器合併症との関連性も示唆されている.ネオスチグミンを用いて確実に筋弛緩から回復させるのは薬理学的に困難である.

10.2199/jjsca.35.257 article JA THE JOURNAL OF JAPAN SOCIETY FOR CLINICAL ANESTHESIA 2015-01-01

2019年に日本麻酔科学会から筋弛緩薬使用時の筋弛緩モニター使用の指針が示された.千葉大学医学部附属病院では以前から筋弛緩モニター装着率上昇に取り組んでいたが,この取り組みが適切な筋弛緩管理につながるかは不明であった.そこで当院で28カ月間から抽出した筋弛緩薬使用予定手術患者267名を対象に後ろ向き観察研究を行った.モニター装着率(56から94%),筋弛緩管理適正率(38から64%)は大きく改善した一方で,拮抗薬の投与量不足や筋弛緩モニター不使用での投与量決定という不適切な管理が約1/3の症例で行われていた.この結果は筋弛緩モニタリングのみでは適切な筋弛緩管理を完全には担保できないことを示唆している.

10.2199/jjsca.43.283 article EN THE JOURNAL OF JAPAN SOCIETY FOR CLINICAL ANESTHESIA 2023-07-15

Postoperative residual muscle paralysis is reported to lead postoperative critical respiratory complications and severe hypoxemia.Neuromuscular function should be adequately recovered after surgery.Sugammadex selectively encapsulate plasma molecules of rocuronium, leading complete reversal the neuromuscular blockade.However, Kotake et al. a 5% incidence with sugammadex (SGX) without monitoring, cases recurarization recovery are reported.Some studies demonstrated that elderly patients respond...

10.26226/morressier.5aeb0acd07b0d6001a79acec preprint EN 2018-05-14

Abstract Background Asymptomatic ulcerative colitis (UC) is increasingly detected by improved screening tests such as the fecal immunochemical test. However, there have been few reports on difference in clinical course of UC according to presence or absence symptoms at diagnosis. The purpose this study was compare time Methods Data were obtained from a retrospective chart review 64 consecutive patients with diagnosed our hospital between 2014 and 2020. Patients grouped diagnosis,...

10.1093/ecco-jcc/jjab232.258 article EN Journal of Crohn s and Colitis 2022-01-01

スガマデクスはロクロニウムをその内部構造に包接することによって,遊離ロクロニウム血中濃度を急速に低下させ,間接的に神経筋接合部でのロクロニウムを排除することで筋弛緩拮抗作用を示す.抜管時のスガマデクス使用の有用性は明らかであるが,麻酔導入時のスガマデクス使用の意義については,まだ明らかではない.JSA気道管理ガイドラインにおいて,筋弛緩薬の使用とスガマデクスの使用について,CICV(cannot intubate, cannot ventilate)を回避できるかという点について議論した.

10.2199/jjsca.41.180 article JA THE JOURNAL OF JAPAN SOCIETY FOR CLINICAL ANESTHESIA 2021-03-15
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