Surgical malignancies scheduled for surgical treatment include those with pancreatic cancer, gastric cancer, esophageal cancer, colorectal cancer, thyroid cancer, lung cancer, bladder cancer, kidney cancer, prostate cancer, liver cancer, brain tumors, and bone metastases.
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Age >= 18 years; 2. Patients with malignant tumors undergoing surgical treatment, including pancreatic cancer, gastric cancer, esophageal cancer, colorectal cancer, thyroid cancer, lung cancer, bladder cancer, kidney cancer, prostate cancer, liver cancer, brain tumors, bone metastases, etc.; 3. Underwent lower extremity venous ultrasound examination during the perioperative period; 4. Complete clinical information records.
Exclusion criteria
Exclusion criteria: 1. Patients undergoing surgery for non-malignant tumors, or whose lesions are confirmed to be benign during surgery; 2. Patients with active bleeding, coagulation disorders, or contraindications to anticoagulation; 3. Pregnant or lactating women.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Venous thromboembolism ; | — |
Secondary
| Measure | Time frame |
|---|---|
| Demographic characteristics ;tumor-related variables;previous medication history;previous treatments;Laboratory test indicators;Past medical history ;Caprini Scale ;Khorana Scale ; | — |
Countries
China
Contacts
Peking Union Medical College Hospital, Chinese Academy of Medical Sciences