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Prognostic indicators in node-negative advanced gastric cancer patients
Hiroaki Saito1, Hirohiko Kuroda, Tomoyuki Matsunaga
1Division of Surgical Oncology, Department of Surgery, Tottori University School of Medicine, Yonago, Japan. sai10@med.tottori-u.ac.jp
Journal of Surgical Oncology
|May 13, 2010
Summary
For node-negative gastric cancer patients, larger tumor size, poor differentiation, and serosal invasion independently predict a worse prognosis, despite better overall survival rates. These factors are crucial for identifying high-risk individuals.
Area of Science:
- Oncology
- Gastroenterology
- Surgical Oncology
Background:
- Node-negative gastric cancer patients generally have a better prognosis.
- However, a subset of these patients experience recurrent disease, highlighting the need to identify prognostic factors.
- Accurate staging is crucial as these patients are presumed to lack regional metastases.
Purpose of the Study:
- To identify significant prognostic indicators in node-negative advanced gastric cancer.
- To inform adjuvant treatment strategies for this patient group.
Main Methods:
- Retrospective review of 777 advanced gastric cancer patients who underwent curative gastrectomy.
- Multivariate analysis to determine independent prognostic factors.
Main Results:
- The 5-year survival rate for node-negative advanced gastric cancer patients was 84.9%.
- Independent prognostic factors identified were tumor size (>or=7 cm), histology (poorly differentiated adenocarcinoma), and depth of invasion (serosal invasion).
- Patients with larger tumors, poorly differentiated histology, and serosal invasion had a significantly worse 5-year survival rate (49.1%).
Conclusions:
- Tumor size, histology, and serosal invasion are significant indicators of poor prognosis in node-negative advanced gastric cancer.
- These findings are important for risk stratification and guiding adjuvant therapy decisions.
