Publications by authors named "Satoshi Okubo"

Introduction: Introduction of new systemic therapies for hepatocellular carcinoma (HCC) has led to the development of new oncological criteria of resectability for the resectability of HCC. This study was aimed at validating the prognosticating ability and clinical utility of the resectability classification based on the novel criteria in real-world clinical practice.

Methods: This study was conducted in 1,822 patients who had undergone curative resection for HCC (population 1) and 107 patients with unresectable disease who had received lenvatinib therapy (population 2).

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Article Synopsis
  • - Groove pancreatic cancer is a malignant tumor that forms in the area where the pancreas, duodenum, and bile duct meet, and it can be difficult to differentiate from groove pancreatitis due to similar symptoms and imaging results.
  • - A 54-year-old male patient experienced severe gastrointestinal symptoms and imaging showed a problematic lesion near the pancreas, but doctors were unable to confirm malignancy before surgery.
  • - After surgical intervention, the diagnosis of groove pancreatic adenocarcinoma was confirmed, but despite treatment, the patient passed away 17 months later, highlighting the need to consider groove pancreatic cancer in similar cases.
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Background: The aim of this study was to evaluate the newly established oncological criteria of resectability of hepatocellular carcinoma (HCC) for selecting suitable candidates for systemic and combination therapy.

Methods: The data of 156 consecutive HCC patients with intrahepatic target nodules who had initially received systemic therapy (lenvatinib and atezolizumab plus bevacizumab) were reviewed. The patients were classified into three groups according to the novel oncological criteria for resectability (R, resectable; BR1, borderline resectable 1; and BR2, borderline resectable 2).

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We present a rare case involving a 54-year-old man with a history of pancreatitis who developed a retroperitoneal lumbar vein aneurysm that was initially misidentified as a pancreatic pseudocyst. Subsequent imaging revealed an enlarged mass and retroperitoneal perforation. Despite initial hesitation, the patient eventually underwent radical surgery that enabled the successful removal of the mass, which was near the inferior vena cava.

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Purpose: Optimal choice of diuretics in perioperative management remains unclear in enhanced recovery after liver surgery. This study investigated the efficacy and safety of tolvaptan (oral vasopressin V2-receptor antagonist) in postoperative management of patients with liver injury and hepatocellular carcinoma.

Methods: The patients clinically diagnosed with liver cirrhosis were included in this study.

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Background: The aim of this study was to evaluate the clinical impact of a combination of systemic sequential therapy and locoregional therapy on the long-term survival of patients with Barcelona Clinic Liver Cancer (BCLC) stage C hepatocellular carcinoma (HCC).

Methods: Sixty-four consecutive patients with intrahepatic target nodules who had initially received systemic therapy (lenvatinib and atezolizumab plus bevacizumab) were reviewed. The clinical impact of the combined use of systemic sequential therapy and locoregional therapy was evaluated by determining overall survival (OS).

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Background: Pancreatic head resection following proximal gastrectomy jeopardizes the blood flow of the remnant stomach owing to right gastroepiploic conduit sacrifice, thereby necessitating total gastrectomy. However, owing to its high invasiveness, concomitant remnant total gastrectomy with pancreatectomy should be avoided as much as possible. Herein, we describe our experience of total pancreatectomy with right gastroepiploic conduit preservation in a patient with a history of proximal gastrectomy and reconstruction by jejunum interposition.

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Article Synopsis
  • - The study investigates whether existing treatment algorithms for primary hepatocellular carcinoma (HCC) apply to patients experiencing recurrent HCC post-surgery, aiming to improve clinical management strategies.
  • - Analysis of 983 patients who had recurrence after curative surgery identified that the disease-free interval (DFI) and tumor stage at recurrence are significant factors affecting survival outcomes, with varying impacts of DFI depending on the tumor stage.
  • - Findings suggest that DFI can help predict the behavior of recurrent HCC, and its significance varies with the tumor stage, highlighting the need for personalized treatment approaches for patients after initial curative surgery.
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Purpose: Tumor sidedness (hepatic side vs. peritoneal side) reportedly predicts microvascular invasion and survival outcomes of T2 gallbladder cancer, although the actual histopathological mechanism is not fully understood.

Methods: The clinical relevance of tumor sidedness was revisited in 84 patients with gallbladder cancer using histopathological analysis of the vascular density of the gallbladder wall.

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Purpose: To investigate if body composition parameters measured by bioelectrical impedance analysis (BIA) and are reportedly correlated with clinical outcomes of patients undergoing digestive tract surgery could be useful for reliably evaluating the perioperative risk in patients undergoing hepatectomy.

Methods: Consecutive 200 patients who underwent BIA before hepatectomy were retrospectively reviewed. A risk prediction model for postoperative morbidity was created using the initial 100 patients, and its performance was validated using the remaining 100 patients.

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Background: This study aimed to explore the efficacy of gadoxetic acid-enhanced (Gd-EOB) magnetic resonance imaging (MRI) in surgical risk estimation among patients with marginal hepatic function estimated by indocyanine green (ICG) clearance test.

Methods: This analysis focused on 120 patients with marginal hepatic functional reserve (ICG clearance rate of future liver remnant [ICG-Krem] < 0.10).

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The case is a 67-year-old female with autosomal dominant polycystic kidney disease who was followed up regularly. CT scan showed a mural nodule growing over the past 4 years inside the hypodense region surrounded by hepatic cysts. Surgery was performed and the pathological diagnosis was StageI gallbladder cancer.

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Background: Rectal neuroendocrine neoplasms can induce liver metastasis. However, few reports exist on the associated long-term recurrence rates. We report a case of liver metastasis identified 15 years after rectal neuroendocrine neoplasm resection.

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Background: The aims of this study were to evaluate the clinical impact of curative-intent subsequent treatment on overall prognosis in lenvatinib-treated hepatocellular carcinoma (HCC) patients.

Methods: Eighty-three consecutive patients with intrahepatic target nodules who received lenvatinib were reviewed. The clinical impact of curative-intent subsequent treatments was investigated through analysis of overall survival (OS) according to pathological deterioration stratified by mALBI grade.

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Introduction: When lenvatinib is administered to people with hepatocellular carcinoma (HCC), tumor blood flow is reduced due to the inhibition of the vascular endothelial growth factor receptor (VEGFR) and fibroblast growth factor receptor (FGFR). Few studies have examined the decrease in tumor blood flow with respect to changes in tumor blood vessels (TBVs) in clinical practice. We investigated the mechanism of tumor blood flow control by investigating changes in the diameter of relatively large TBVs in large-sized lesions with high blood flow.

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The surveillance cameras we focus on target the volume zone, and area reduction is a top priority. However, by simplifying the ADC comparator, we face a new RUSH current issue, for which we propose a circuit solution. This paper proposes two novel techniques of column-ADC for surveillance cameras to improve low-light characteristics.

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Background: Increasing number of patients with advanced hepatocellular carcinoma (HCC) has recently achieved salvage interventions after introduction of new biologic agents, while there are insufficient data to determine if such additional intervention(s) after treatment with newer biologic agents are truly advantageous for patients with advanced HCC.

Methods: The clinical records of 107 consecutive patients who underwent lenvatinib treatment for advanced HCC were extensively reviewed and the prognostic advantages of individual additional treatments after lenvatinib treatment were investigated through a regression analysis considering time-dependent covariates.

Results: Multivariate analysis revealed that R0 resection or curative-intent radiofrequency ablation (RFA) (hazard ratio [HR], 0.

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Background: Primary hepatic neuroendocrine neoplasm (NEN) is a rare condition, and it is difficult to differentiate between primary and metastatic hepatic NENs. Herein, we report a case of primary hepatic NEN that initially mimicked a hemangioma but showed a gradual increase in size on long-term careful observation.

Case Summary: A 47-year-old woman was incidentally diagnosed with a 12-mm liver mass, suspected to be a hemangioma.

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La Llave is known to contain unusual 5,6-dimethoxyflavones bearing a variously oxygenated B-ring. Phytochemical investigation of the leaves and the roots of achieved the isolation of two new methoxylated flavones, named casedulones A () and B (), together with 12 known analogues. Their unique structures were established with the aid of spectral analyses and total syntheses.

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Article Synopsis
  • This study aimed to evaluate the effectiveness of 18F-FDG-PET/CT imaging as a predictor for early progressive disease (e-PD) in patients with hepatocellular carcinoma (HCC) undergoing treatment with the drug combo atezolizumab and bevacizumab.
  • Among 20 patients, those with a tumor-to-normal liver ratio (TLR) of 2 or higher demonstrated poorer treatment responses and higher rates of e-PD compared to those with lower TLR values.
  • The results suggest that 18F-FDG-PET/CT can serve as a valuable tool for predicting e-PD, potentially allowing for quicker treatment adjustments in HCC patients receiving Atezo/Bev.
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Introduction And Importance: Indocyanine green (ICG) fluorescence angiography is being increasingly performed intraoperatively to detect restricted blood flow intraoperatively for the prevention of postoperative organ ischemia and anastomotic leakage. This is the first case report of simultaneous laparoscopic distal gastrectomy (LDG) and spleen-preserving distal pancreatectomy (LSPDP) involving ICG angiography use to avoid the remnant stomach ischemia.

Case Presentation: A 55-year-old man was diagnosed with early cancer of the stomach body and intraductal papillary mucinous neoplasms of the pancreatic tail.

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Background: Given the scarce evidence regarding the impact of preoperative nutritional status on surgical outcomes of patients with hepatocellular carcinoma, predictive powers of nutritional/inflammatory scores for short-term surgical outcomes in patients with hepatocellular carcinoma were investigated.

Methods: Outcomes of 1272 patients with hepatocellular carcinoma were reviewed, and predictive powers of nine nutritional/inflammatory scores for short-term surgical outcomes were compared using the receiver-operating characteristic curve analysis. Clinical relevance of the best nutritional score was then studied in detail to clarify its utility as an alternative predictive measure for surgical risk of patients with hepatocellular carcinoma.

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Purpose: The optimal pancreaticogastrostomy (PG) method for reducing pancreatic fistula (PF) incidence remains unclear. This retrospective review aimed to evaluate the clinical impact of the "twin U-stitch method" and compared it with the conventional invagination method.

Methods: Data of 183 consecutive patients who underwent PG after pancreaticoduodenectomy (PD) between January 2015 and November 2020 were evaluated.

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Background: The actual efficacy of use of adhesion barriers during liver surgery remains to be fully understood.

Methods: We conducted an extensive review of clinical data and operation videos of 210 patients who underwent repeat hepatectomy to clarify the factors associated with the degree of adhesion as evaluated by the TORAD score.

Results: Adhesion barriers were placed in 131 patients (Seprafilm [n = 77], Adspray [n = 32], and Interceed [n = 22)]), but not in the remaining 79 patients during the previous surgery.

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