Publications by authors named "Kei Fujikawa"

Article Synopsis
  • * Researchers analyzed data from stroke patients with cancer over a 9-year period, focusing on the post/pre treatment D-dimer ratio to predict the likelihood of recurrent strokes.
  • * Results suggest that higher post/pre D-dimer ratios are linked to an increased risk of recurrent strokes, with 18% of participants experiencing one during the follow-up, highlighting the importance of monitoring D-dimer levels after treatment.
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Japanese national oncological experts convened to evaluate the efficacy and safety of particle beam therapy (PT) for pulmonary, liver and lymph node oligometastases (P-OM, L-OM and LN-OM, respectively) and to conduct a statistically comparative analysis of the local control (LC) rate and overall survival (OS) rate of PT versus those of X-ray stereotactic body radiotherapy (X-SBRT) and X-ray intensity-modulated radiotherapy (X-IMRT). They conducted [1] an analysis of the efficacy and safety of metastasis-directed therapy with PT for P-OM, L-OM and LN-OM using a Japanese nationwide multi-institutional cohort study data set; [2] a systematic review of X-ray high-precision radiotherapy (i.e.

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Particle beam therapy (PT) is a potentially promising approach to the treatment of extrahepatic biliary cancer (EBC) because of its unique dose distribution using the Bragg peak. However, the superiority of PT to photon radiotherapy (XT) remains unclear. Therefore, we conducted a systematic review and meta-analysis to compare PT and XT for the treatment of EBC.

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Background: Thromboangiitis obliterans (TAO) can lead to the development of critical limb-threatening ischemia (CLTI). Despite conventional treatments, such as smoking cessation or revascularization, young patients (<50 years) still require limb amputation. Therapeutic angiogenesis using bone marrow-derived mononuclear cell (BM-MNC) implantation has been tested and shown to have reasonable efficacy in CLTI.

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Article Synopsis
  • Nab-paclitaxel (nab-PTX) shows better tumor delivery compared to traditional paclitaxel, prompting a study to explore its safety and effectiveness in advanced non-small cell lung cancer (NSCLC).
  • Analyzed in a phase II trial, patients received either 100 mg/m (group A) or 70 mg/m (group B) of nab-PTX, with progression-free and overall survival as key metrics.
  • Results indicated similar effectiveness in both dosage groups, but the 70 mg/m group had fewer severe side effects, suggesting it may be the preferred dosing option for treating NSCLC.
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Background And Objective: Osimertinib as first-line treatment for patients with non-small cell lung cancer (NSCLC) harboring epidermal growth factor (EGFR) mutations remains controversial. Sequential EGFR-tyrosine kinase inhibitor (TKI) might be superior to the first line osimertinib in patients at risk of developing acquired T790M mutations.

Methods: We enrolled consecutive patients with EGFR-mutated (deletion 19 or L858R) advanced NSCLC treated with first-line drugs and evaluated predictive markers using classification and regression tree (CART) for the detection of T790M mutations based on patient backgrounds prior to initial treatment.

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Bayesian methods quantify and interpret the therapeutic effects of investigational drugs based on probability statements of the posterior distribution. However, the basic principle underlying the use of Bayesian methods in registration trials for new drug applications in Japan has not been adequately discussed. Motivated by the two drug approval systems for early approval recently enacted in Japan, we present our perspectives on the application of the Bayesian approach in registration trials in Japan.

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  • The study aimed to examine how often major congenital malformations occur in Japanese women with pregestational diabetes and identify a key hemoglobin A1c (HbA1c) cutoff in the first trimester related to these malformations.
  • It included 292 women with pregestational diabetes, finding that 7.2% had major congenital malformations and 12.7% had all congenital malformations, with a significant HbA1c threshold of 6.5% linked to these issues.
  • The results suggest that Japanese women should aim for an HbA1c level below 6.5% during the first trimester to reduce the risk of major malformations, aligning with recommendations used in other countries.
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Background: Obese pregnant women are known to experience poorer pregnancy outcomes and are at higher risk of postnatal arteriosclerosis. Hence, weight control during and after pregnancy is important for reducing these risks. The objective of our planned randomized controlled trial is to evaluate whether the rate of change in body weight in obese women before pregnancy to 12 months postpartum would be lower with the use of an intervention consisting of Internet of Things (IoT) devices and mobile applications during pregnancy to 1 year postpartum compared to a non-intervention group.

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A deep inferior epigastric artery perforator (DIEP) flap has unique variations in the anatomy of the vascular supply, and this idea has been adapted to the venous system. Venous system patterns, including connections between the superficial and deep inferior epigastric vein (SDC) or connections of the superficial inferior epigastric vein across the midline-crossing linking veins (MCLV), have gradually become recognized as a cause of fat necrosis and induration due to venous congestion. Therefore, it is important to select patients who are appropriate for transplantation by evaluating blood flow in the flap based on these patterns.

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The recent increase of the number of unidentified cadavers has become a serious problem throughout the world. As a simple and objective method for age estimation, we attempted to utilize Raman spectrometry for forensic identification. Raman spectroscopy is an optical-based vibrational spectroscopic technique that provides detailed information regarding a sample's molecular composition and structures.

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Background: Empagliflozin reduces the risk of hospitalization for heart failure in patients with type 2 diabetes and cardiovascular disease. We sought to elucidate the effect of empagliflozin as an add-on therapy on decongestion and renal function in patients with type 2 diabetes admitted for acute decompensated heart failure.

Methods: The study was terminated early due to COVID-19 pandemic.

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Chronic pain after breast surgery including breast reconstruction is a major concern for patients. However, the factors associated with chronic pain after breast surgery are uncertain in Japanese population. The aim of this study was to identify patient-specific and medical/surgical factors that predict chronic pain after breast surgery in Japanese patients.

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Objectives: To analyze predictors associated with viable cells in pulmonary residual lesions after chemotherapy for metastatic testicular nonseminomatous germ cell tumors and to develop models to prioritize pulmonary resection.

Methods: Between 2008 and 2017, 40 patients underwent pulmonary metastasectomy after chemotherapy for nonseminomatous germ cell tumors. We evaluated these patients, and 326 pulmonary residual lesions were confirmed using computed tomography and pathological evaluations.

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Basket trials simultaneously evaluate the effect of one or more drugs on a defined biomarker, genetic alteration, or molecular target in a variety of disease subtypes, often called strata. A conventional approach for analyzing such trials is an independent analysis of each of the strata. This analysis is inefficient as it lacks the power to detect the effect of drugs in each stratum.

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Background: Osteoporosis is a major side effect of aromatase inhibitors (AIs), which are greatly effective in the treatment of breast cancer. However, there are no satisfactory measures against osteoporosis. In this multicenter, randomized, comparative study, we evaluate the efficacy of denosumab for preventing loss of bone mineral density (BMD) induced by adjuvant therapy with AI s in breast cancer patients with normal BMD.

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Problems in breast reconstruction with deep inferior epigastric perforator (DIEP) flaps include postoperative fat induration and necrosis. A resulting clinical symptom is palpable indurated tissue, but it is difficult to measure the stiffness of transplanted fat tissues objectively at a deep site. The ability to perform shear-wave elastography (SWE) was recently added to some common ultrasonic echo devices, enabling objective three-dimensional measurements of tissue stiffness.

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Objective: The purpose of this study was to investigate possible changes in the demographic and clinical characteristics of Japanese patients with eating disorders using a consecutive series of patients who presented at Kyoto University Hospital between 1963 and 2004. We also studied cultural factors related to eating disorders over time.

Method: We completed a retrospective review of a cohort of patients using a checklist based on the DSM-5 diagnostic criteria.

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Objective: To examine the impact of the DSM-5 on the diagnoses and severity indicators of eating disorders, we conducted a comparative study on the classification of eating disorders including subtypes of anorexia nervosa (AN) between the DSM-IV and DSM-5 criteria. In addition, we studied the association of the DSM-5 severity criteria and clinical variables.

Method: Participants were 304 outpatients, aged 16-45 years, with eating disorders, diagnosed using semi-structured clinical interviews and the eating disorder examination questionnaire (EDE-Q).

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