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  1. Article

    Open Access

    The Clinical Impact of Change in the C-Reactive Protein/Albumin Ratio in Gastric Cancer Patients Who Receive Curative Treatment

    Recently, change in the C-reactive protein/albumin ratio (CAR) has become a promising prognostic marker in some malignancies. The aim of the present study was to evaluate the clinical impact of change in the C...

    Toru Aoyama, Yukio Maezawa, Itaru Hashimoto in Journal of Gastrointestinal Cancer (2024)

  2. Article

    Open Access

    The Clinical Impact of Change in the Neutrophil to Lymphocyte Ratio During the Perioperative Period in Gastric Cancer Patients Who Receive Curative Gastrectomy

    Recently, change in the neutrophil to lymphocyte ratio (cNLR) has been shown to be a promising prognostic inflammation marker in some malignancies. The aim of the present study was to evaluate the clinical imp...

    Toru Aoyama, Itaru Hashimoto, Yukio Maezawa in Journal of Gastrointestinal Cancer (2024)

  3. Article

    Open Access

    The clinical impacts of postoperative complications after colon cancer surgery for the clinical course of adjuvant treatment and survival

    We investigated whether or not postoperative complications (POCs) themselves have a negative survival impact or indirectly worsen the survival due to insufficient adjuvant chemotherapy in a pooled analysis of ...

    Toru Aoyama, Koji Oba, Michitaka Honda in International Journal of Clinical Oncology (2023)

  4. Article

    Open Access

    The Comparison of the Dietary Intake Loss Between Elderly and Non-Elderly Patients After Gastrectomy for Gastric Cancer

    The present study quantified the changes in the dietary and nutritional intake after gastrectomy between elderly and non-elderly patients.

    Masato Nakazono, Toru Aoyama, Keisuke Komori in Journal of Gastrointestinal Cancer (2023)

  5. Article

    Open Access

    Clinical Significance of the Prealbumin Level in Gastric Cancer Patients Who Receive Curative Treatment

    We investigated the clinical influence of the prealbumin level on the gastric cancer survival and recurrence after curative treatment.

    Toru Aoyama, Masato Nakazono, Kenki Segami in Journal of Gastrointestinal Cancer (2023)

  6. Article

    Open Access

    Phase II study of an oxaliplatin-based regimen for relapsed colon cancer patients treated with oxaliplatin-based adjuvant chemotherapy (INSPIRE study)

    The aim of this study was to evaluate the efficacy and safety of first-line chemotherapy with re-introduction of oxaliplatin (OX) more than 6 months after adjuvant chemotherapy including OX.

    Keiichiro Ishibashi, Toru Aoyama, Masahito Kotaka in Cancer Chemotherapy and Pharmacology (2021)

  7. No Access

    Article

    Limited resection vs. pancreaticoduodenectomy for primary duodenal adenocarcinoma: a systematic review and meta-analysis

    It is well known that surgery is the mainstay treatment for duodenal adenocarcinoma. However, the optimal extent of surgery is still under debate. We aimed to systematically review and perform a meta-analysis...

    Pipit Burasakarn, Ryota Higuchi, Souya Nunobe in International Journal of Clinical Oncology (2021)

  8. No Access

    Article

    Postoperative D-dimer elevation affects tumor recurrence and the long-term survival in gastric cancer patients who undergo gastrectomy

    We retrospectively evaluated the blood coagulation activity using the D-dimer level in the early period after gastrectomy and investigated whether postoperative hypercoagulation affects tumor recurrence and lo...

    Kentaro Hara, Toru Aoyama, Tsutomu Hayashi in International Journal of Clinical Oncology (2020)

  9. Article

    Open Access

    High gamma-glutamyl hydrolase and low folylpolyglutamate synthetase expression as prognostic biomarkers in patients with locally advanced gastric cancer who were administrated postoperative adjuvant chemotherapy with S-1

    The enzymes gamma-glutamyl hydrolase (GGH) and folylpolyglutamate synthetase (FPGS) regulate intracellular folate concentrations needed for cell proliferation, DNA synthesis, and repair. High GGH expression af...

    Yukio Maezawa, Kentaro Sakamaki, Naohide Oue in Journal of Cancer Research and Clinical On… (2020)

  10. Article

    Equivalent feasibility and safety of perioperative care by ERAS in open and laparoscopy-assisted distal gastrectomy for gastric cancer: a single-institution ancillary study using the patient cohort enrolled in the JCOG0912 phase III trial

    Laparoscopy-assisted distal gastrectomy (LADG) has an advantage of earlier recovery after surgery due to having lower invasiveness and wound pain than open distal gastrectomy (ODG). However, whether the same e...

    Toru Aoyama, Takaki Yoshikawa, Tsutomu Sato, Tsutomu Hayashi in Gastric Cancer (2019)

  11. Article

    Changes in bone metabolism after gastric cancer surgery in male patients: a prospective observational study

    Several retrospective studies have shown that bone disorders occur after gastric cancer surgery. This study was designed to prospectively evaluate the changes in bone metabolism after gastrectomy for gastric c...

    Yosuke Atsumi, Yasushi Rino, Hiroo Wada, Yuichi Kitani, Yukihiro Ozawa in Gastric Cancer (2019)

  12. Article

    A phase II trial of capecitabine plus cisplatin (XP) for patients with advanced gastric cancer with early relapse after S-1 adjuvant therapy: XParTS-I trial

    In Japan, standard regimens for advanced gastric cancer (AGC) include S-1 chemotherapy. The standard treatment for early relapse after adjuvant chemotherapy with fluoropyrimidine alone is platinum-based chemot...

    Kazuhiro Nishikawa, Akira Tsuburaya, Takaki Yoshikawa, Masazumi Takahashi in Gastric Cancer (2018)

  13. Article

    Priority of lymph node dissection for proximal gastric cancer invading the greater curvature

    The therapeutic efficacy of dissection of the splenic hilar lymph nodes (#10) has not been fully evaluated in locally advanced proximal gastric cancer (LAGC) invading the greater curvature of the stomach.

    Yukio Maezawa, Toru Aoyama, Takanobu Yamada, Kazuki Kano, Tsutomu Hayashi in Gastric Cancer (2018)

  14. Article

    Does a laparoscopic approach attenuate the body weight loss and lean body mass loss observed in open distal gastrectomy for gastric cancer? a single-institution exploratory analysis of the JCOG 0912 phase III trial

    Laparoscopy-assisted distal gastrectomy (LADG) for gastric cancer may prevent the loss of body weight and lean body mass resulting from reduced surgical stress in comparison to open distal gastrectomy (ODG). A...

    Toru Aoyama, Tsutomu Sato, Tsutomu Hayashi, Takanobu Yamada, Haruhiko Cho in Gastric Cancer (2018)

  15. Article

    Open Access

    Randomized phase III trial comparing surgery alone to UFT + PSK for stage II rectal cancer (JFMC38 trial)

    We conducted a randomized phase III trial comparing tegafur/uracil (UFT) and Polysaccharide-K (PSK) to surgery alone in curatively resected stage II rectal cancer patients.

    Kiyotaka Okuno, Toru Aoyama, Koji Oba in Cancer Chemotherapy and Pharmacology (2018)

  16. Article

    Open Access

    Prediction of postoperative inflammatory complications after esophageal cancer surgery based on early changes in the C-reactive protein level in patients who received perioperative steroid therapy and enhanced recovery after surgery care: a retrospective analysis

    Serum C-reactive protein (CRP) level can be an indicator of the early stage of infectious complications. However, its utility in advanced esophageal cancer patients who receive radical esophagectomy with two- ...

    Kazuki Kano, Toru Aoyama, Tetsushi Nakajima, Yukio Maezawa, Tsutomu Hayashi in BMC Cancer (2017)

  17. No Access

    Article

    The survival and prognosticators of peritoneal cytology-positive gastric cancer patients who received upfront gastrectomy and subsequent S-1 chemotherapy

    Upfront surgery and subsequent S-1 chemotherapy is frequently selected for peritoneal cytology-positive (CY1) gastric cancer patients without other distant metastases (CY1-only). The objective of this study wa...

    Kazuki Kano, Toru Aoyama, Yukio Maezawa in International Journal of Clinical Oncology (2017)

  18. No Access

    Article

    Postoperative weight loss leads to poor survival through poor S-1 efficacy in patients with stage II/III gastric cancer

    We previously demonstrated that body weight loss (BWL) at one month after gastrectomy, a common finding after surgery for gastric cancer, was an independent risk factor for the continuation of adjuvant chemoth...

    Toru Aoyama, Tsutomu Sato, Yukio Maezawa in International Journal of Clinical Oncology (2017)

  19. Article

    Open Access

    Randomized phase II study of cetuximab versus irinotecan and cetuximab in patients with chemo-refractory KRAS codon G13D metastatic colorectal cancer (G13D-study)

    This study investigated the efficacy and safety of cetuximab-based treatment in patients with chemotherapy-resistant refractory mCRC with KRAS G13D mutation.

    Masato Nakamura, Toru Aoyama, Keiichiro Ishibashi in Cancer Chemotherapy and Pharmacology (2017)

  20. Article

    Impact of preoperative hand grip strength on morbidity following gastric cancer surgery

    Sarcopenia is a decrease in both muscle mass and strength. It remains unclear whether sarcopenia is associated with morbidity after gastric cancer surgery. This study evaluated the impact of sarcopenia on the ...

    Tsutomu Sato, Toru Aoyama, Tsutomu Hayashi, Kenki Segami, Taiichi Kawabe in Gastric Cancer (2016)

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