Publications by authors named "Naoto Yonamine"

Tumor markers such as carbohydrate antigen 19-9 (CA19-9) are generally useful in ruling out malignancy of hepatic cysts. The patient was a 72-year-old man who had a ruptured liver cyst in the right liver, which had been noted since he was 67 years old at another hospital. The initial laboratory tests demonstrated elevated CA19-9 (193 784.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to determine if preoperative treatment for pancreatic cancer increases the risk of developing hepatic steatosis (HS) and if HS impacts short-term surgical recovery.
  • It involved reviewing medical records of 230 patients who underwent surgery from 2010 to 2023, identifying various risk factors for HS, including factors like female sex, disease stage, and preoperative chemotherapy.
  • Results showed that while preoperative HS was linked to several risk factors, it did not influence short-term postoperative complications.
View Article and Find Full Text PDF
Article Synopsis
  • Pancreatic ductal adenocarcinoma (PDAC) has a high recurrence rate, over 70%, and is typically treated with gemcitabine (GEM) chemotherapy, though outcomes are often poor.
  • A case study of a 63-year-old woman shows she achieved clinical complete remission for over 7 years after receiving GEM monotherapy, even after developing liver metastases post-surgery.
  • Analysis of hENT1 protein levels in tumor tissues suggests that assessing hENT1 expression could help predict the efficacy of GEM treatment in PDAC patients.
View Article and Find Full Text PDF

Tumor resectability, which is increasingly determined based on preoperative chemotherapy, is critical in determining the best treatment for pancreatic cancers. The present study evaluated the usefulness of serum carbohydrate antigen 19-9 (CA19-9) and the preoperative 8F-fluorodeoxyglucose positron emission tomography/computed tomography standardized uptake value (SUV) percentage change (SUVmax%=[(SUVmax2-SUVmax1)/SUVmax1] ×100, where SUVmax1 and SUVmax2 represent the initial and delayed phases, respectively) as biological factors indicative of tumor resectability. The present study included patients with resectable pancreatic cancer who underwent complete surgical resection, for whom both CA19-9 and SUVmax% were documented using cut-off values of 500 U/ml and 24.

View Article and Find Full Text PDF

Background: Tumor size (TS) is a well-established prognostic factor of pancreatic ductal adenocarcinoma (PDAC). However, whether a uniform treatment strategy can be applied for all resectable PDACs (R-PDACs) and borderline resectable PDACs (BR-PDACs), regardless of TS, remains unclear. This study aimed to investigate the impact of preoperative TS on surgical outcomes of patients with R-PDACs and BR-PDACs.

View Article and Find Full Text PDF

Although conversion surgery has increasingly been performed for initially unresectable advanced pancreatic ductal adenocarcinoma (PDAC), the rate of conversion, including that for patients who do not undergo resection, remains unclear. Patients with PDAC who were treated between January 2013 and December 2018 were classified into three groups: resectable (R), borderline resectable (BR), and unresectable (UR). We analyzed patient outcomes, including the rate of surgical resection and survival, in each of these groups.

View Article and Find Full Text PDF

Background: S-1 adjuvant chemotherapy is the standard treatment in Asia for resectable pancreatic ductal adenocarcinoma. The relative dose intensity of adjuvant chemotherapy influences survival in pancreatic cancer but does not precisely reflect treatment schedule modifications. We investigated the effects of total dose intensity of S-1 adjuvant chemotherapy on the survival of patients with pancreatic cancer and the permissible dose reduction.

View Article and Find Full Text PDF

We examined the value of preoperative dual time point (DTP) 18F-fluorodeoxyglucose positron emission tomography/computed tomography fusion imaging (FDG PET/CT) as a predictor of early recurrence or the outcomes in patients with pancreatic cancer. Standardized uptake values (SUVs) in DTP FDG PET/CT were performed as preoperative staging. SUVmax1 and SUVmax2 were obtained in 60 min and 120 min, respectively.

View Article and Find Full Text PDF

The expression of mesothelin correlates with a poor prognosis in patients with breast cancer. Since mesothelin plays a role in cancer metastasis in association with CA125, we herein examined the expression of mesothelin and CA125, and the clinicopathological meaning and prognosis of the co-expression of mesothelin and CA125 in breast cancer. Our results showed that among 478 patients, mesothelin and CA125 were co-expressed in 48 (10 %), mesothelin only in 75 (16 %), CA125 only in 217 (45 %), and neither in 234 (49 %).

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the impact of metastases to lymph node #14 (LN#14) on the prognosis of patients with pancreatic head cancer who underwent surgery.
  • Among 99 patients analyzed, those with LN#14 metastasis had a significantly lower median overall survival (10.2 months) compared to those without (31.1 months).
  • The findings suggest that LN#14 metastasis is a critical prognostic indicator, independent of other lymph node metastases, highlighting its potential importance in patient outcomes.
View Article and Find Full Text PDF

Recent studies have suggested that the interaction of mesothelin (MSLN) and cancer antigen 125 (CA125) enhances tumor metastases. The aim of the present study was to clarify the impact of MSLN and CA125 co-expression on the prognosis of patients with extrahepatic bile duct carcinoma (BDC). Tissue samples from patients who underwent surgical resection between 2007 and 2015 for perihilar or distal BDC were immunohistochemically examined.

View Article and Find Full Text PDF