Clinical application of accelerated rehabilitation surgery in elderly patients with colorectal cancer

Interventions: Control group:The control group received routine treatment and nursing care during the study period, which was issued by the responsible nurse .;Case group:Patients received the accelerated rehabilitation surgery (ERAS) nursing program Primary outcome(s): Degree of pain relief;First exhaust time;First eating time;Length of stay;Complication rate Study Design: Non randomized control