Efficacy and Safety of Colorectal Anastomotic Leak Testing

Exclusion Criteria

• •1. Patients with preoperatively diagnosed anastomotic leak or other severe abdominal infections.
• •2. Patients with severe cardiovascular and cerebrovascular diseases (such as recent myocardial infarction, unstable angina pectoris, severe heart failure, acute cerebral infarction, etc.) who cannot tolerate surgery and related tests.
• •3. Patients with severely impaired liver and kidney function (liver function Child - Pugh classification C or above, creatinine clearance rate \< 30 ml/min).
• •4. Patients with coagulation disorders (such as platelet count \< 50×10⁹/L, international normalized ratio (INR) \> 1.5, etc.) that cannot be corrected or are receiving anticoagulant therapy that cannot be adjusted.
• •5. Patients with a history of abdominal radiotherapy or multiple abdominal surgeries and severe abdominal adhesions that may affect the operation and detection procedures.
• •6. Patients with other malignant tumors who are receiving active anti-tumor treatment such as radiotherapy and chemotherapy.
• •7. Patients with mental illness or cognitive impairment who cannot cooperate with the study process and follow-up.