Gastric and Esophagogastric Junction Adenocarcinoma
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: (1) Patients with pathologically confirmed primary gastric adenocarcinoma or esophagogastric junction adenocarcinoma (Siewert type II/III) at West China Hospital of Sichuan University between 2010 and 2020*; (2) Aged 18–80 years; (3) No prior neoadjuvant chemotherapy or radiotherapy; (4) Underwent surgical resection with lymphadenectomy; (5) Presence of a single tumor lesion; (6) No distant metastasis (M0); (7) No history of other malignant diseases. *Diagnosis of esophagogastric junction adenocarcinoma (Siewert type II/III) was determined based on preoperative gastroscopy, upper gastrointestinal barium meal study, and intraoperative specimen evaluation.
Exclusion criteria
Exclusion criteria: (1) Incomplete clinical or pathological data; (2) Gastric stump carcinoma; (3) Death during hospitalization or within 30 days after surgery; (4) Death from non-neoplastic causes; (5) Patients who underwent only exploratory laparotomy/laparoscopy, palliative resection, or bypass procedures.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 3-year overall survival;Lymph node status and metastasis across groups; | — |
Secondary
| Measure | Time frame |
|---|---|
| Tumor location;Tumor size;Histological classification;Extent of invasion;perineural invasion;lymphovascular invasion;Random Forest-Based Prognostic Model; | — |
Countries
China
Contacts
West China Hospital, Sichuan University