Effect of Transversus Abdominis Plane Block Combined With Dexmedetomidine Infusion on the Prognosis in Elderly Patients Undergoing Abdominal Surgery

Effect of Transversus Abdominis Plane Block Combined With Dexmedetomidine Infusion on the Prognosis in Elderly Patients Undergoing Abdominal Surgery

To compare the prognosis of elderly patients undergoing radical resection of colorectal cancer treated with general anesthesia and general anesthesia combined with transversus abdominis plane block and continuous infusion of dexmedetomidine. The incidence of postoperative delirium, postoperative acute pain moderately to severely and poor postoperative recovery were composite endpoints to determine the prognosis of patients.

Inclusion Criteria:

• Aged 65-80 years,regardless of gender
• American Society of Anesthesiologists physical status I-III
• Undergoing elective radical resection of colorectal cancer
• Sign informed consent

Exclusion Criteria:

• Could not cooperate to complete the pain VAS evaluation
• Could not cooperate to complete the cognitive function assessment