Publications by authors named "Yanagimoto H"

Purpose: The impact of body-cavity depth on open (OLR) and laparoscopic liver resection (LLR) of segment 7 remains unclear. Therefore, we investigated the influence of body-cavity depth at the upper-right portion of the abdomen on LLR and OLR of segment 7.

Methods: In total, 101 patients who underwent segment-7 liver resection over 2010-2023 were included.

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Purpose: This study aimed to evaluate the efficacy of indocyanine green (ICG)-fluorescence imaging for the identification of hepatic boundaries during liver resection and its advantages in surgical outcomes over conventional methods.

Methods: This prospective, exploratory, single-arm clinical trial included 47 patients with liver tumors who underwent liver resection using ICG-fluorescence imaging (ICG-LR) between 2019 and 2020. The primary outcome measure was the successful identification of hepatic boundaries during liver resection, from the perspective of both the hepatic surface and intrahepatic boundary, using ICG-fluorescence imaging.

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Background/aim: Atezolizumab plus bevacizumab (AteBev) is widely used as a first-line treatment for advanced hepatocellular carcinoma (HCC). However, evidence regarding the optimal drug sequence following AteBev treatment is limited. This study aimed to compare the treatment outcomes between tyrosine kinase inhibitors (TKIs) and durvalumab plus tremelimumab (DurTre) following AteBev treatment.

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Portal annular pancreas (PAP) is an uncommon anomaly in which the pancreatic parenchyma surrounds the portal or superior mesenteric vein. An adequate operative approach is necessary to prevent clinically relevant postoperative pancreatic fistula after pancreaticoduodenectomy for PAP. We herein report a case of robotic pancreaticoduodenectomy for PAP.

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Background: Blonanserin is approved for treating schizophrenia in Japan, South Korea, India, and China. We aimed to synthesize the efficacy and tolerability of blonanserin compared to other antipsychotics.

Methods: A systematic review and pairwise meta-analysis were conducted using the Cochrane Schizophrenia Group's study-based trial register until January 24, 2024.

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  • Major hepatectomy (MH) can lead to a higher risk of adverse events due to reduced liver function and surgical impact, prompting an analysis within the JCOG1113 trial focused on gemcitabine-based treatments for advanced biliary tract cancer.* -
  • Among 354 patients, 76 were evaluated post-surgery for recurrence; results indicated that while platelet counts fell more in patients who underwent MH, anemia and white blood cell count decreases were less frequent compared to those who did not have MH.* -
  • Overall survival rates were similar between MH and non-MH patients receiving gemcitabine with both S-1 and cisplatin, suggesting that gemcitabine-based chemotherapy maintains its safety and efficacy
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  • Preoperative understanding of caudate biliary anatomy is crucial for safely removing perihilar cholangiocarcinoma (PHC) tumors, and the study used endoscopic nasobiliary drainage (ENBD) to visualize these branches.
  • The research analyzed 89 PHC patients who underwent ENBD-CT cholangiography and compared findings with 85 patients who had multidetector raw CT (MDCT) scans.
  • Results indicated that ENBD-CT cholangiography identified significantly more caudate branches (206) compared to MDCT (62), providing detailed information about their drainage patterns into various hepatic ducts.
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  • A 49-year-old man with advanced gallbladder cancer underwent surgery and had a follow-up resection, which initially showed no signs of malignancy.
  • However, a year later, imaging revealed liver metastases and he was diagnosed with postoperative recurrence, leading to a course of chemotherapy.
  • After chemotherapy, the metastases shrank significantly, allowing for a successful laparoscopic liver surgery with no residual tumor, suggesting surgery could be viable for managing hepatic metastases in similar cases.
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Background: Systemic inflammation and altered metabolism are essential hallmarks of cancer. We hypothesized that the rapid turnover protein transthyretin (TTR) (half-life: 2-3 days), compared with the conventional marker albumin (21 days), better reflects the inflammatory/metabolic dynamics of pancreatic ductal adenocarcinoma (PDAC) after neoadjuvant therapy (NAT) and is a useful prognostic marker.

Methods: Serum TTR and albumin levels were measured in 104 consecutive post-NAT PDAC patients before curative resection.

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Purpose: The technical difficulties of laparoscopic liver resection (LLR) are greatly associated with the location of liver tumors. Since segment 8 (S8) contains a wide area, the difficulty of LLR for S8 tumors may vary depending on the location within the segment, such as the ventral (S8v) and dorsal (S8d) area, but the difference is unclear.

Methods: We retrospectively investigated 30 patients who underwent primary laparoscopic partial liver resection for liver tumors in S8 at Kobe University Hospital between January 2018 and June 2023.

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  • This study investigates whether postoperative bile leaks affect the prognosis of patients with hepatocellular carcinoma after liver resections.
  • It analyzed 781 patients, comparing those with bile leaks to those without, using matched cohorts for a fair comparison.
  • The findings suggest that bile leaks do not significantly impact 5-year recurrence-free or overall survival rates in these patients.
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Background/aim: Neskeep, an absorbable polyglycolic acid spacer, has been developed as the optimal material for spacer placement surgery. However, preventing its severe adhesion is a crucial concern. Therefore, we aimed to identify an effective anti-adhesion agent for Neskeep using rat models.

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Tremelimumab plus durvalumab (Dur/Tre) is the first-line treatment for advanced hepatocellular carcinoma (HCC) worldwide. The present report describes the case of a 68-year-old man diagnosed with advanced HCC and a bile duct tumor thrombus (BDTT) who achieved a complete response to Dur/Tre therapy. The BDTT progressed to the bifurcation of the left and right hepatic ducts.

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  • Novel adhesives made from porous hydroxyapatite (HAp) ceramics provide a new method for surgical procedures involving biological tissues.
  • These adhesives work by allowing water to move from soft tissues into their porous structure, which helps them effectively attach to different tissue types under various hydration conditions.
  • Demonstrated during surgeries on porcine livers, these HAp adhesive devices show strong holding capabilities and can be easily detached when needed, indicating their potential use as internal organ retractors in laparoscopic surgeries.
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Background/aim: This study aimed to evaluate the utility of the albumin-bilirubin grade for predicting the prognosis after repeat liver resection for patients with recurrent hepatocellular carcinoma.

Patients And Methods: Ninety patients with intrahepatic recurrent hepatocellular carcinoma who underwent repeat liver resection at our institution between 2005 and 2019 were retrospectively analyzed. Cox proportional-hazards regression models evaluated independent preoperative prognostic factors, including the albumin-bilirubin grade.

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  • The study focuses on evaluating the effectiveness of ramucirumab as a treatment for advanced hepatocellular carcinoma (HCC), especially in patients with poor liver function or after other therapies.
  • Data was analyzed from 17 patients who received ramucirumab, revealing a median overall survival of 11.5 months and some improvement in liver function markers after treatment.
  • Additionally, lenvatinib, re-administered after ramucirumab treatment failure, showed promise as a valid treatment strategy, although it led to liver function deterioration in some patients.
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Intrahepatic cholangiocarcinoma (iCCA) has been subclassified by its gross morphology into the mass-forming (MF), periductal-infiltrating (PI), and intraductal growth (IG) types and their combinations. This classification correlates well with clinical features; for example, MF-iCCA has less lymph-node metastasis and a better prognosis than PI-iCCA. According to the recently accumulated evidence from histological investigations, the WHO classification endorsed a subclassification scheme in which iCCA cases are classified into small- and large-duct types.

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  • This study investigates the effectiveness of drainage fluid amylase (DFA) in predicting postoperative pancreatic fistula (CR-POPF) rates after two types of surgery: open distal pancreatectomy (ODP) and laparoscopic distal pancreatectomy (LDP).
  • Researchers reviewed data from 294 patients and found that the rate of CR-POPF was significantly higher after ODP compared to LDP, with DFA levels on postoperative days one and three showing distinct optimal cutoff values for the two procedures.
  • The findings indicate that while DFA on day three can predict CR-POPF for both surgeries, the cutoff value is notably higher for patients who underwent LDP compared to those who had ODP, suggesting different thresholds may
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Owing to the high objective response rate of atezolizumab plus bevacizumab (Atez/Bev) for hepatocellular carcinoma (HCC), the concept of sequential conversion to local treatment has recently become mainstream. The conversion concept is mainly applied to Barcelona Clinic for Liver Cancer (BCLC) stage B cases, and radiotherapy is rarely considered as a conversion local treatment. We herein report three patients who were treated with the novel concept of "sequential particle radiotherapy," consisting of Atez/Bev therapy followed by particle radiotherapy (PRT) for HCC with advanced portal vein tumor thrombus (Vp3/4 PVTT).

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Spontaneous rupture of a primary hepatocellular carcinoma (HCC) is a frequently observed and fatal complication. However, the rupture of lymph node (LN) metastases from HCC is rare. A 79 year-old male with hepatitis B underwent three liver resections for HCC.

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Aim: The IMbrave150 trial revealed that atezolizumab plus bevacizumab (AtezoBv) showed a higher objective response rate (ORR) in patients with advanced hepatocellular carcinoma (HCC). Although conversion therapy after AtezoBv has been recently reported, markers predictive of its efficacy, particularly radiological imaging markers, have not yet been identified. The present study focused on tumor morphological appearance on radiological imaging and evaluated whether it could be associated with AtezoBv efficacy.

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Background: Venous thromboembolism (VTE) is a potentially fatal complication of hepatectomy. The use of postoperative prophylactic anticoagulation in patients who have undergone hepatectomy is controversial because of the risk of postoperative bleeding. Therefore, we hypothesized that monitoring plasma D-dimer could be useful in the early diagnosis of VTE after hepatectomy.

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  • * An intraoperative test showed stable blood flow, but to ensure better blood supply post-surgery, a bypass was created using a vein, alongside a pancreaticoduodenectomy that preserved part of the stomach.
  • * The patient's recovery was smooth, indicating that this approach to arterial reconstruction during pancreaticoduodenectomy can be effective for those with atherosclerotic celiac axis stenosis.
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  • Researchers have developed flexible sensors using braided piezoelectric PLLA fibers that can be easily sewn into bed sheets to monitor bruxism.
  • The system aims to provide a convenient and accurate way to measure bruxism frequency at home, contrasting with traditional polysomnography that requires a hospital setting.
  • Testing showed this new method had over 95% accuracy in detecting bruxism when compared to polysomnography results, highlighting its effectiveness and user-friendliness.
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