2,388 results match your criteria: "Osaka National Hospital[Affiliation]"

Objectives: Several patients experience chronic pain after total knee arthroplasty (TKA), with the source of postoperative pain attributed to intra- and extra-articular factors. This study focused on the proximal tibia with either the Pes anserinus (PA) or around Gerdy's tubercle (GT) as the most common site of extra-articular pain.

Methods: This prospective study included 270 patients (360 knees) with advanced varus osteoarthritis (OA) of the knee scheduled for primary TKA and the patient population comprised 289 women and 71 men with a mean age of 74.

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  • The study investigated the effect of administering P2Y inhibitors during endovascular treatment (EVT) in patients with anterior circulation thrombosis due to acute ischemic stroke.
  • Out of 242 patients analyzed, those who received P2Y inhibitors had a significantly higher rate of carotid artery stenting and better functional outcomes after 90 days compared to those who did not.
  • The results showed that patients treated with P2Y inhibitors had an adjusted odds ratio of 6.65 for better outcomes, suggesting a strong positive association with the use of these medications.
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  • An 82-year-old woman with a history of bladder cancer had a cystectomy and developed a ureteral fistula in 2012, showing no cancer spread at that time.
  • In 2020, she experienced vulvar itching, diagnosed as vulvovaginitis, but the symptoms persisted, leading to a biopsy in 2023 that revealed Paget cells and secondary extramammary Paget's disease linked to urothelial carcinoma.
  • After detecting a mass in the pelvic floor and confirming local recurrence of cancer, she underwent surgery in October 2023 and is currently recovering well without signs of recurrence.
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Serum leucine-rich alpha-2 glycoprotein (LRG) can monitor disease activities during biologics treatment in patients with inflammatory bowel disease (IBD). It is unclear whether the pretreatment serum LRG level can predict clinical effectiveness including serum trough levels of ustekinumab in patients with IBD. This multicenter prospective cohort study included 184 patients (Crohn's disease, 104; ulcerative colitis, 80) who received ustekinumab (n = 119) or anti-tumor necrosis factor (n = 65) between January 2019 and March 2023.

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Background: The present study investigated the acute mucosal reaction (AMR) after high-dose-rate interstitial brachytherapy at 54 Gy/9 fractions (HDR54) as monotherapy administered twice a day for tongue cancer in 13 patients, and attempted to validate HDR54 by comparing the AMR with that of our previously reported HDR at 60 Gy/10 fractions (HDR60), and low-dose-rate interstitial brachytherapy at approximately 70 Gy (LDR70).

Methods: The European Organization for Research on Treatment of Cancer/ Radiation Therapy Oncology Group scoring system with modifications (score: 1-4.5) was used to evaluate AMR.

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Background: Restenosis after carotid artery stenting (CAS) is associated with the risk of developing ischemic stroke. We aimed to evaluate the inhibitory effect of cilostazol addition on in-stent restenosis (ISR) in patients treated with CAS.

Methods: In a randomized, open-label, blind-end point trial, patients with symptomatic and asymptomatic carotid artery stenosis and scheduled for CAS were randomly assigned to adding cilostazol (50 or 100 mg, twice per day) on other antiplatelets from 3 days before CAS or not adding cilostazol.

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Background: Although endovascular therapy (EVT) is effective for large ischemic region strokes, the impact of hyperglycemia remains unclear.

Methods And Results: We analyzed data from the RESCUE-Japan LIMIT (Recovery by Endovascular Salvage for Cerebral Ultra-Acute Embolism-Japan Large Ischemic Core) trial, which randomized stroke patients with Alberta Stroke Program Early Computed Tomography Score of 3 to 5 to EVT versus medical management. Outcomes were compared among patients with normoglycemia (<140 mg/dL), moderate hyperglycemia (≥140, <180 mg/dL), and severe hyperglycemia (≥180 mg/dL) on admission.

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Background: Cerebral venous thrombosis (CVT) accounts for 0.5-1% of all strokes. The role of endovascular therapy (EVT) in the management of CVT remains controversial and variations in practice patterns are not well known.

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Article Synopsis
  • The study investigates the vascular response after balloon angioplasty treatment for infrapopliteal artery stenosis, noting a trend of worsening conditions post-procedure.
  • Thirteen patients were analyzed through optical frequency domain imaging (OFDI) at three different time points to measure changes in artery dimensions and plaque burden.
  • Results showed that while lumen area initially increased after angioplasty, it decreased significantly at follow-up, with plaque area also showing an initial decrease but increasing again, particularly notable in patients with mild to moderate plaque burden.
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Generation and validation of antibody 42B1 recognizing galactose-deficient IgG for diagnosis of chronic inflammatory diseases.

Clin Chim Acta

January 2025

Department of Molecular Biochemistry and Clinical Investigation, Graduate School of Medicine, Osaka University, 1-7 Yamada-oka, Suita, Osaka 565-0871, Japan. Electronic address:

Galactose-deficient (agalactosyl) IgG is significantly increased in the serum of patients with rheumatoid arthritis, and autoantibodies against it are used in clinical tests. Subsequent studies also show increased agalactosyl IgG in many chronic inflammatory diseases. In this study, we generated antibody 42B1 recognizing agalactosyl IgG and developed a new method to evaluate chronic inflammatory diseases with it.

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Traumatic pseudoaneurysms of the middle meningeal artery (MMA) are rare and have a poor prognosis due to their high risk of rupture. This study presents a case of a 53-year-old man who experienced rupture of an MMA pseudoaneurysm 10 days after craniotomy for an acute subdural hematoma caused by a blunt head injury. He also had an accompanying temporal bone fracture extending to the skull base.

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Background: The addition of antiplatelet therapy to anticoagulant therapy in patients with stroke with non-valvular atrial fibrillation (NVAF) and atherothrombotic disease may increase bleeding risk without reducing recurrent stroke risk.

Aims: To evaluate the clinical benefits of anticoagulant monotherapy compared to combination therapy with anticoagulants and antiplatelet agents.

Methods And Design: This is an investigator-initiated prospective multicenter, randomized, open-label, parallel-group clinical trial.

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Background: Dislocation is a major complication of total hip arthroplasty (THA). This study aimed to assess the dislocation rate after THA using the combined strategy of using CT-based navigation, large diameter heads, and posterior soft tissue repair in a large cohort.

Methods: We included 1410 patients who had undergone primary cementless THA using the CT-based navigation system.

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Background: Myxomatous mitral valve disease (MMVD) is the most common acquired heart disease in dogs. Mitral valvuloplasty (MVP) addresses regurgitation, but the pre- and postoperative changes in myocardial function remain uncertain.

Objectives: This study evaluated myocardial motion before and after MVP using two-dimensional speckle-tracking echocardiography (2D-STE).

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Background: The prognosis of advanced gastric cancer (GC) with extensive lymph node (LN) metastasis treated with surgery alone remains poor. We conducted a multicenter phase II study to evaluate the efficacy and safety of perioperative capecitabine plus oxaliplatin (CapeOx) therapy in patients with advanced GC with extensive LN metastases.

Patients And Methods: Patients with histologically proven HER2-negative or unknown gastric adenocarcinoma with paraaortic LN (PALN) metastases and/or bulky LN metastases located at the celiac axis, common hepatic artery, and/or splenic artery were included in the study.

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Aims: Whether rotation of a diverting loop ileostomy during rectal cancer surgery, for reducing the catastrophic effect of an anastomotic leakage, affects the incidence of small-bowel obstruction has not been fully investigated. The purpose of this study is to explore whether technical maneuvers in diverting loop ileostomy creation, including its rotation, are associated with increased incidence of small-bowel obstruction in rectal tumor surgery.

Methods: This multicenter prospective study was conducted by the Clinical Study Group of Osaka University, which comprises 24 major institutions.

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Purpose: Analysis of ctDNA may enable early identification of patients likely to relapse, presenting an opportunity for early interventions and improved outcomes. Tumor-naïve plasma-only approaches for minimal residual disease (MRD) assessment accelerate turnaround time, enabling rapid treatment decisions and ongoing surveillance.

Experimental Design: Plasma samples were obtained from 80 study participants with stage II or III colorectal cancer selected from CIRCULATE-Japan GALAXY.

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Article Synopsis
  • - The study examines how the time from hospital arrival to starting extracorporeal cardiopulmonary resuscitation (ECPR) affects outcomes in patients who suffered out-of-hospital cardiac arrest (OHCA) due to acute myocardial infarction (MI).
  • - Researchers analyzed data from 50 patients who underwent ECPR and percutaneous coronary intervention (PCI), finding that a shorter "door to ECPR" time (less than 25 minutes) led to significantly lower mortality and better neurological outcomes at 90 days.
  • - The findings suggest that quicker implementation of ECPR is critical for improving survival rates and neurological health in OHCA patients resulting from acute MI.
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Objectives: This study aimed to examine nationwide trends in acute stroke endovascular thrombectomy (EVT) following five pivotal trials in 2015 that established it as the 'standard of care'.

Methods: The Japanese Registry of NeuroEndovascular Therapy 4 was a nationwide retrospective study registering consecutive patients who underwent neurointervention by specialists certified by the Japanese Society for Neuroendovascular Therapy at 166 centers from January 2015 to December 2019. We extracted patients who underwent EVT, and analyzed the annual trends in baseline characteristics, revascularization procedures and outcomes.

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Unveiling the dynamics of hepatitis C virus transmission among injection drug users and men who have sex with men: A comprehensive study in Japan.

Hepatol Res

November 2024

Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.

Article Synopsis
  • The study investigates hepatitis C (HCV) transmission dynamics among specific populations in Japan, particularly people who inject drugs (PWID) and men who have sex with men (MSM), to understand impediments to HCV elimination despite low overall infection rates.
  • Researchers analyzed data from HCV-infected individuals at Osaka National Hospital, conducting genetic sequencing to determine genotype distribution and check for recombination among samples collected between 2010 and 2023.
  • The results indicate that MSM status affects HCV transmission routes among PWID, with distinct strains observed in different groups, emphasizing the need for targeted control measures for both PWID and MSM to enhance HCV elimination efforts in Japan.*
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O6-methylguanine DNA methyltransferase promoter methylation is an important clinical biomarker of newly diagnosed glioblastoma. Previous radiological studies using dynamic susceptibility contrast (DSC) magnetic resonance imaging (MRI) perfusion have aimed to predict methylation status non-invasively in gliomas with radiological characteristics. The possibility of predicting methylation status using DSC-MRI perfusion with a radiological approach remains controversial.

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  • The study investigates non-acquired immunodeficiency syndrome-defining malignancies (NADMs) among people living with hemophilia and HIV in Japan, focusing on the period after the approval of direct-acting antivirals for hepatitis C virus (HCV).
  • A nationwide survey was conducted across 395 HIV treatment facilities, collecting data on 328 individuals from 2015 to 2022, which revealed that liver cancer was the most common NADM, accounting for 43% of cases identified.
  • The findings indicate a significantly higher rate of liver cancer and other malignancies in this population, particularly in younger patients, emphasizing the importance of regular cancer screening and preventive strategies for PLWH
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Background: Severe hypoglycemia (SH) poses a significant challenge in the management of type 1 diabetes (T1D); however, the factors that offer protection other than diabetes technologies are under-studied. The primary objective of this study was to examine the association between hypoglycemia problem-solving (HPS) abilities and severe hypoglycemic events in adults with T1D using Poisson regression analysis.

Methods: In this cross-sectional study, 287 adults with T1D (mean age: 50.

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  • The study analyzed data from 93 participants with type 1 diabetes to explore how the frequency of scanning with intermittent-scanning continuous glucose monitoring (isCGM) affects time in range (TIR), time above range (TAR), and time below range (TBR) throughout the day.
  • Increased scanning frequency was linked to higher TIR, particularly in the afternoon, evening, and night, and was associated with lower TAR and TBR during these times.
  • Psychological factors, such as concerns about blood glucose levels affecting social interactions and feelings of loneliness, were found to influence how often participants scanned their glucose levels.
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