45 results match your criteria: "Kochi University Hospital[Affiliation]"

Background: Cancer-associated thromboembolism has been thoroughly investigated in previous studies, and direct oral anticoagulants (DOACs) were established for the treatment and prevention of venous thromboembolism (VTE). However, the risks of cancer-associated arterial thromboembolism (ATE) and the efficacy of DOACs remain unclear.

Objectives: To evaluate the risk factors and the clinical activity of edoxaban (EDO) for the prevention of ATE in patients with advanced lung cancer.

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Bayesian Neural Networks in Predictive Neurosurgery.

Adv Exp Med Biol

November 2024

Department of Neurosurgery, Kochi University Hospital, Kochi, Japan.

"Bayesian Neural Networks in Predictive Neurosurgery" explains both conceptually and theoretically the combination of statistical techniques for clinical prediction models, including artificial neural networks, Bayesian regression, and Bayesian neural networks. This clinical prediction system incorporates both prior knowledge and one's own experiences (Bayesian analysis) as well as recognizes complex statistical associations between prognostic and outcome variables (artificial neural networks).

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Article Synopsis
  • The study investigates the effectiveness of immune checkpoint inhibitors (ICI) for non-small cell lung cancer (NSCLC) patients, particularly comparing those with brain metastases (BM) to those without.
  • It analyzes data from 240 patients, finding no major overall survival differences between the two groups, but identifies a significant survival disadvantage for patients with BM among those with high PD-L1 expression (≥50%).
  • The conclusion suggests that while ICI is generally effective for both groups, patients with BM and high PD-L1 levels may have poorer outcomes compared to their counterparts without BM.
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Article Synopsis
  • This study focuses on determining the D-dimer cut-off value for predicting venous thromboembolism in Japanese patients diagnosed with advanced lung cancer.
  • A multicenter observational study involved 1,008 lung cancer patients, identifying 62 with venous thromboembolism at diagnosis and analyzing their D-dimer levels.
  • The research found a D-dimer cut-off value of 3.3 μg/ml, suggesting that patients with levels at or above this may have venous thromboembolism, marking a significant finding in this patient population.
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Purpose: Immune checkpoint inhibitors (ICIs) are ineffective against epidermal growth factor receptor (EGFR)-mutant non-small cell lung cancer (NSCLC). This study aimed to investigate the clinical characteristics of patients who were treated or not treated with ICIs, and of those who benefit from immunotherapy in EGFR-mutant NSCLC.

Methods: We analyzed patients with unresectable stage III/IV or recurrent NSCLC harboring EGFR mutations using a prospective umbrella-type lung cancer registry (CS-Lung-003).

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Risk Factors for Bleeding Events in Japanese Patients with Advanced Lung Cancer: Data from the Rising-VTE/NEJ037 Study.

Cancers (Basel)

January 2024

Department of Internal Medicine, Division of Medical Oncology and Respiratory Medicine, Shimane University Faculty of Medicine, 89-1 Enya-cho, Izumo 693-8501, Japan.

Article Synopsis
  • The study investigates the risk factors for hemorrhagic events in patients with advanced lung cancer undergoing treatment, finding a significant occurrence in 11.4% of participants.
  • Venous thromboembolism (VTE) and poorer performance status are identified as major risk factors for bleeding, while female sex and a specific cancer stage (M1a) are linked to a reduced risk.
  • The research emphasizes the need to monitor bleeding risks in patients receiving anticoagulant therapy for cancer-related thromboembolism.
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Intradural exposure in the extended middle fossa anterior transpetrosal approach is traditionally limited to the inferior petrosal sinus inferomedially. Expanding bone removal of the petrous apex around the petrous internal carotid artery (ICA), underneath the trigeminal ganglion/mandibular nerve, and into the lateral component of the clivus can significantly expand the limits of this approach beyond the inferior petrosal sinus and allows for exposure of the midline structures, aspects of the contralateral inferior clival region, and, when high riding, the vertebrobasilar junction. To date, no descriptive techniques for drilling into the lateral clivus in this approach have been published.

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: The cavernous sinus (CS) is a highly vulnerable anatomical space, mainly due to the neurovascular structures that it contains; therefore, a detailed knowledge of its anatomy is mandatory for surgical unlocking. In this study, we compared the anatomy of this region from different endoscopic and microsurgical operative corridors, further focusing on the corresponding anatomic landmarks encountered along these routes. Furthermore, we tried to define the safe entry zones to this venous space from these three different operative corridors, and to provide indications regarding the optimal approach according to the lesion's location.

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Micromorphological observation of HLE cells under knockdown of Fascin using LV-SEM.

Med Mol Morphol

December 2023

Department of Pathology, School of Medicine, Kochi University, 185-1, Kohasu, Oko-Cho, Nankoku, 783-8505, Japan.

Liver cancer is one of the most prevalent cancers in Japan with hepatocellular carcinoma (HCC) as the major histological subtype. Successful novel treatments for HCC have been reported; however, recurrences or metastasis may occur, which results in poor prognoses and high mortality of HCC patients. Fascin, an actin-bundling protein, regulates cell adhesion, migration, and invasion.

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Introduction: Utilization an in-situ pedicle of the external carotid artery (ECA) as an arterial donor can allow for the successful augmentation or replacement of flow to a large vascular territory. We propose a mathematical model for quantitatively analyzing and grading the suitability of donor and recipient bypass vessels based on a set of anatomical and surgical variables in order to predict which pair has the greatest possibility for success. Using this method, we analyze all of the potential donor-recipient pairs for each ECA donor vessel-including the superficial temporal (STA), middle meningeal (MMA), and occipital (OA) arteries.

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Breast cancer (BC) is one of the most common types of cancer affecting female patients. Triple‑negative BC (TNBC) is an aggressive subtype. Fascin, an actin‑bundling protein, serves a significant role in cancer metastasis.

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Prostatic lymphangitis carcinomatosis with massive bilateral pleural effusion.

Am J Med Sci

October 2023

Division of Internal Medicine, Japan Agricultural Cooperatives Kochi Hospital, 526-1 Myoken-aza-Nakano, Nankoku, Kochi 783-8509, Japan; Department of Community Medicine for Respirology, Graduate School of Biomedical Sciences, Tokushima University, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan. Electronic address:

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Aim: We aimed to verify the therapeutic efficacy and safety of stereotactic body radiotherapy (SBRT) for previously untreated initial small hepatocellular carcinoma (HCC) in a multicenter, retrospective study.

Methods: Patients who underwent SBRT for HCC at the Japanese Society of Clinical Oncology (JCOG) member hospitals in Japan between July 2013 and December 2017 and met the following eligibility criteria were included: (1) initial HCC; (2) ≤3 nodules, ≤5 cm in diameter; (3) Child-Pugh score of A or B; and (4) unsuitability for or refusal of standard treatment. We analyzed the overall survival, recurrence-free survival, and cumulative incidence of local recurrence rate, and adverse events directly related to SBRT.

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A case of an asymptomatic 19-year-old woman with Kimura disease presenting with a nodule in the right parotid gland is presented. She had a medical history of atopic dermatitis and noticed a mass on her right-side neck. Cervical lymphadenopathy was clinically diagnosed.

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Background: Although non-stroke vertebral artery dissection (VAD) is diagnosed using MRI, detecting the subtle intravascular structure remains challenging. This study aimed to evaluate the validity of quantitative intravascular scanning based on novel zoomed high-resolution black blood (Z-HB) MRI for distinguishing VAD from other vessel pathologies.

Methods: Twenty-one patients with non-stroke VAD and 18 with symptomatic atherosclerotic plaques in their vertebral artery underwent Z-HB MRI and subsequent profile curve processing.

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Article Synopsis
  • Management of cancer-associated venous thromboembolism (VTE) is crucial for treating advanced lung cancer, but a reliable VTE risk assessment method is currently lacking.
  • The Rising-VTE/NEJ037 study assessed VTE risk among 1008 patients with advanced lung cancer using the Khorana score, but results showed it had low predictive power for this population.
  • Factors such as female sex, adenocarcinoma type, and specific blood markers were more effective in identifying VTE risk, suggesting that alternative methods like prothrombin fragment 1 + 2 may be better suited for Japanese patients.
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Background: Flow diverter (FD) placement is generally effective for intractable internal carotid artery (ICA) aneurysms. However, salvage treatment for the aneurysm enlarging even after FD placement remains to be elucidated. Additional overlapping FD placement is considered the first-line treatment for residual or recurrent aneurysms.

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Article Synopsis
  • This study focused on the incidence of venous thromboembolism (VTE) in lung cancer patients, exploring both the occurrence of VTE at diagnosis and during treatment, alongside the effectiveness of the anticoagulant edoxaban.
  • Out of 1021 lung cancer patients followed for 2 years, 62 had VTE at diagnosis, and 38 (9.9%) developed VTE during follow-up, with no recorded recurrences after 6 months of edoxaban treatment.
  • While edoxaban showed effectiveness in preventing VTE recurrence, the treatment raised concerns due to a notable increase in bleeding events, suggesting careful monitoring is needed for lung cancer patients undergoing this anticoagul
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Background: With the deterioration of cognitive functions, the capability to obtain information with speed, one of the essential elements needed to perform safe driving, may be impacted. We aimed to compare the legibility of analogue and digital speedometers for senior drivers with cognitive impairment, and examined the demographic, cognitive, and driving-related variables that predict their speedometer-reading performance.

Methods: A total of 50 senior drivers with cognitive impairment were investigated and asked to complete an office-based speedometer-reading test using an iPad.

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A new risk-assessment tool for venous thromboembolism in advanced lung cancer: a prospective, observational study.

J Hematol Oncol

April 2022

Department of Internal Medicine, Division of Medical Oncology and Respiratory Medicine, Shimane University Faculty of Medicine, 89-1 Enya-cho, Izumo, Shimane, 693-8501, Japan.

Article Synopsis
  • - The study focuses on managing venous thromboembolism (VTE) in advanced lung cancer patients, highlighting its importance for treatment choices and overall prognosis.
  • - Researchers developed a new scoring system to predict VTE risk specifically for advanced lung cancer using data from over 1000 patients, with a key finding that 9.9% of them experienced VTE.
  • - The scoring model includes factors like sex, cancer type, and certain blood counts, with a score of 5 or more indicating a high risk for VTE, helping identify patients who may need closer monitoring.
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Article Synopsis
  • Early diagnosis and complete removal of the primary tumor are crucial for effectively treating melanoma.
  • The study examined 30 Japanese patients with Stage I or II melanoma to identify factors related to the disease's metastasis, finding a correlation between older onset age and the expression of Nestin and Fascin proteins.
  • The research is the first to use double immunofluorescence staining to visualize Nestin and Fascin in melanoma cells, suggesting that these proteins may play a role in the disease's progression, although the impact of Fascin remains controversial.
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Fascin expression persists with fibronectin in embryonic rat hepatoblasts.

Med Mol Morphol

June 2022

Department of Diagnostic Pathology, Kochi University Hospital, 185-1, Oko-cho, Kohasu, Nankoku, Kochi, 783-8505, Japan.

Both fascin and fibronectin are known to play important roles in cell adhesion and migration. They are noted as tumor markers or inhibiting target for tumor treatment. In this study, embryonic rat livers were obtained to examine the expression of fascin and fibronectin during liver development.

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Background: The Milan System for Reporting Salivary Gland Cytopathology (MSRSGC) is a risk-stratification reporting system that was introduced in 2018. The objective of this multi-institutional study was to evaluate the utility of the MSRSGC in Japan.

Methods: In total, 1608 fine-needle aspiration samples with matching histologic diagnoses were retrieved from 12 large institutions in Japan.

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Fascin-1, an actin-bundling protein, is associated with poor prognosis in patients with various types of human carcinoma. However, research is limited on the role of fascin-1 in sarcoma. Solitary fibrous tumor (SFT) and hemangiopericytoma (HPC) are rare sarcomas derived from the mesenchyme.

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