Publications by authors named "Tamagawa H"

Background: FOLFIRI (5-FU + leucovorin + irinotecan) plus ramucirumab is one of the standards in second-line metastatic colorectal cancer (CRC) patients progressing after treatment with oxaliplatin/fluoropyrimidine with bevacizumab, but there is no evidence on its efficacy without prior bevacizumab. Moreover, VEGF-D has not been confirmed as a predictive biomarker for ramucirumab's efficacy, either.

Methods: The RAINCLOUD study was a multicenter, single-arm, phase II trial conducted in Japan.

View Article and Find Full Text PDF
Article Synopsis
  • Four years later, a CT scan showed a suspicious enlarged lymph node, leading to a diagnosis of recurrent cancer and subsequent laparoscopic surgery.
  • After surgery, the patient received adjuvant chemotherapy (CAPOX) and has remained cancer-free for over 2.5 years, highlighting the importance of close follow-up due to a 6.3% recurrence rate in similar cases.
View Article and Find Full Text PDF

Background: An esophageal diverticulum is a relatively rare disease, with reports of treatment for esophageal cancer in the diverticulum even rarer.

Case Presentation: The case involved a 72-year-old male with a chief complaint of dysphagia. He was diagnosed with an esophageal diverticulum (Zenker's diverticulum) measuring 10 cm in diameter.

View Article and Find Full Text PDF

Background: The short-term outcomes of chemoradiotherapy (CRT) with S-1 (a combination of tegafur, gimeracil, and oteracil) following limited surgery for patients with T1 or T2 lower rectal cancer have shown encouraging results.

Objectives: This study was designed to delve deeper into the long-term outcomes of CRT with S-1 after limited surgery, with the goal of evaluating both the long-term efficacy and potential risks associated with this treatment approach in patients diagnosed with T1 or T2 lower rectal cancer.

Methods: This was conducted as a multicenter, single-arm, prospective phase II trial.

View Article and Find Full Text PDF

Human pancreatic cancer is characterized by the molecular diversity encompassing native duct-like and squamous cell-like identities, but mechanisms underlying squamous transdifferentiation have remained elusive. To comprehensively capture the molecular diversity of human pancreatic cancer, we here profiled 65 patient-derived pancreatic cancer organoid lines, including six adenosquamous carcinoma lines. H3K27me3-mediated erasure of the ductal lineage specifiers and hijacking of the TP63-driven squamous-cell programme drove squamous-cell commitment, providing survival benefit in a Wnt-deficient environment and hypoxic conditions.

View Article and Find Full Text PDF

Introduction: Indocyanine green fluorescence imaging (ICG-FI) reduces anastomotic leakage (AL) in rectal cancer surgery. However, no studies investigating risk factors for anastomotic leakage specific to the group using ICG-FI have ever previously been conducted. The purpose of this retrospective multicenter study was to ascertain the risk factors for AL in the group using ICG-FI.

View Article and Find Full Text PDF
Article Synopsis
  • Gastric cancer is a significant global health issue, particularly in East Asia, leading to this study's evaluation of the modified Neutrophil-Platelet Score (mNPS) as a predictor of survival and recurrence in patients.
  • The research focused on 168 patients who had curative gastrectomy and adjuvant treatment, finding that those with a low mNPS (0) had significantly better overall survival (OS) and recurrence-free survival (RFS) compared to those with a high mNPS (≥1).
  • The study concluded that mNPS could be an important prognostic marker, with higher scores indicating poorer long-term outcomes in gastric cancer patients.
View Article and Find Full Text PDF

Background/aim: This study aimed to evaluate the clinical impact of the Naples Prognostic Score (NPS) in patients with gastric cancer and to clarify the potential of the NPS as a nutritional and inflammation evaluation system.

Patients And Methods: This study included 158 patients who underwent curative treatment for gastric cancer between 2005 and 2020. The prognosis and clinical pathological parameters of the high-NPS (NPS >2) and low-NPS (NPS=0, 1) groups were analyzed.

View Article and Find Full Text PDF

Background: Intraductal oncocytic papillary neoplasm (IOPN), previously classified as a subtype of intraductal papillary mucinous neoplasm (IPMN), has been described as an independent disease by the WHO since 2019. IOPN is a rare tumor, with few reported cases. Herein, we report a case of resected non-invasive IOPN that formed a lesion protruding toward the duodenum from the accessory papilla.

View Article and Find Full Text PDF

Background/aim: The prognosis of patients with pancreatic cancer remains poor, despite recent advances in surgical techniques, perioperative care, neoadjuvant and adjuvant chemotherapy. This study aimed to investigate the preoperative neutrophil-to-lymphocyte ratio (NLR) as a prognostic factor and determine the optimal cutoff value in surgical patients with pancreatic cancer.

Patients And Methods: We retrospectively enrolled 461 patients with pancreatic cancer who underwent resection between January 2013 and December 2022 in the Department of Gastrointestinal Surgery at Kanagawa Cancer Center.

View Article and Find Full Text PDF

Background/aim: This study evaluated the clinical impact of the lymphocyte-to-monocyte ratio (LMR) in patients with esophageal cancer who received curative treatment and perioperative adjuvant treatment. The association between LMR and the clinicopathological characteristics of patients with esophageal cancer was also investigated.

Patients And Methods: This study included 181 patients who underwent curative treatment for esophageal cancer between 2005 and 2020.

View Article and Find Full Text PDF

Background/aim: The perioperative nutritional status has recently been reported to influence the prognosis of various types of cancer. We investigated the relationship between the Geriatric Nutritional Risk Index (GNRI) and overall survival (OS) and recurrence-free survival (RFS) in patients with esophageal cancer who received radical and adjuvant therapy.

Patients And Methods: Patients who underwent radical resection for esophageal cancer at our hospital (n=187) were included.

View Article and Find Full Text PDF

Background: We investigated the impact of the prognostic nutritional index (PNI) on esophageal cancer survival and recurrence after curative treatment.

Methods: This study included 120 patients who underwent curative surgery followed by the adjuvant treatment for esophageal cancer between 2008 and 2018. The risk factors for overall survival (OS) and recurrence-free survival (RFS) were identified.

View Article and Find Full Text PDF

The patient was a 27-year-old man. He was referred to our hospital because he was aware of a mass in his abdomen. An abdominal ultrasound showed a 70-mm mass lesion.

View Article and Find Full Text PDF

Background/aim: We evaluated the clinical impact of the Geriatric Nutritional Risk Index (GNRI) in patients who received curative treatment and perioperative adjuvant treatment. We also investigated the association between the GNRI and the clinicopathological features of patients with GC.

Patients And Methods: This study included 280 patients who underwent curative treatment for GC between 2005 and 2020.

View Article and Find Full Text PDF

Background/aim: The platelet-to-lymphocyte ratio (PLR) is a promising prognostic marker in some malignancies. The present study evaluated the clinical impact of the PLR in patients with gastric cancer who underwent curative resection.

Patients And Methods: This study included 258 patients who underwent curative treatment for gastric cancer between 2005 and 2020.

View Article and Find Full Text PDF
Article Synopsis
  • The study explored how the preoperative Oral Health Assessment Tool (OHAT) score affects surgical outcomes for patients with esophageal cancer.
  • It included 90 patients and found that a higher OHAT score was linked to increased rates of postoperative pneumonia and longer hospital stays.
  • The results indicated significant differences in 5-year overall survival rates, with healthier patients showing better outcomes, emphasizing the importance of oral health care in perioperative planning.
View Article and Find Full Text PDF

Background: Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal cancers, and surgical resection is the only potentially curative approach. However, the rate of recurrence remains high, particularly within the first 6 months, and is associated with a poor prognosis. The present study evaluated the clinical characteristics and risk factors for early recurrence in pancreatic ductal adenocarcinoma (PDAC) patients who underwent curative resection, regardless of the use of neoadjuvant chemotherapy, to identify predictive factors associated with early recurrence and poor outcomes as well as to determine the optimal treatment strategy for patients at high risk of early recurrence after surgical resection.

View Article and Find Full Text PDF
Article Synopsis
  • The study focused on how the lymphocyte-to-C-reactive protein ratio (LCR) affects survival and recurrence rates in esophageal cancer patients after treatment.
  • A total of 89 patients who underwent surgery and adjuvant treatment were analyzed, identifying LCR as a key factor influencing their overall survival (OS) and recurrence-free survival (RFS).
  • Patients with a higher LCR saw significantly better long-term survival and lower recurrence rates, suggesting LCR should guide treatment and care strategies for esophageal cancer.
View Article and Find Full Text PDF

Background/aim: Gastrectomy with lymphadenectomy is a standard treatment for gastric cancer. Anastomotic leakage remains a potentially fatal complication of gastrectomy. Forceful stapler extraction may cause anastomotic complications.

View Article and Find Full Text PDF

Background/aim: When nivolumab is administered as second-line therapy for esophageal cancer, radiotherapy may also be provided in cases either concurrently or sequentially. The aim of this study was to retrospectively examine whether the incidence of adverse events increases in such cases.

Patients And Methods: Twenty-two esophageal cancer patients [17 males and 5 females; mean age 71 years (range=58-87 years)] treated with nivolumab were included.

View Article and Find Full Text PDF

Background/aim: Mucinous gastric carcinoma (MGC) has a poor prognosis. Due to the differences in clinicopathology factors between MGC and non-MGC (NMGC), it is difficult to compare them. In this study, we compared the clinicopathological characteristics and prognosis of MGC and NMGC patients.

View Article and Find Full Text PDF

It is common to say that the origin of the membrane potential is attributed to transmembrane ion transport, but it is theoretically possible to explain its generation by the mechanism of ion adsorption. It has been previously suggested that the ion adsorption mechanism even leads to potential formulae identical to the famous Nernst equation or the Goldman-Hodgkin-Katz equation. Our further analysis, presented in this paper, indicates that the potential formula based on the ion adsorption mechanism leads to an equation that is a function of the surface charge density of the material and the surface potential of the material.

View Article and Find Full Text PDF

Background/aim: The prognostic nutritional index (PNI) has been reported as an immunonutritional index that can easily evaluate nutritional status and immunocompetence from blood tests. The purpose of this study was to investigate the usefulness of PNI as a prognostic factor in postoperative gastric cancer patients.

Patients And Methods: In this retrospective cohort study, we evaluated 258 patients with pStage I-III gastric cancer who underwent radical resection at Yokohama City University Hospital, from 2015 to 2021.

View Article and Find Full Text PDF