Camrelizumab Combined With Neoadjuvant Chemotherapy After Stent Placement for Left-Sided Obstructive Colonic Cancer

Inclusion Criteria

• •Radiologically proven colonic obstruction of the left colon/upper rectum presumed secondary to a carcinoma
• •Able to give written, informed consent
• •Primary tumor was resectable
• •ECOG score 0 or 1
• •Haemoglobin greater than 100 g/L after transfusion before chemotherapy,
• •White blood cells greater than 3.0×10# /L
• •Platelets greater than 100×10# / L;
• •Glomerular filtration rate greater than 50 mL per minute as calculated by the Wright or Cockroft formula
• •Bilirubin less than 1.5×Upper Limit of Normal(ULN)
• •ALT and AST less than 2.5×ULN