Observation of the safety and efficacy of alfentanil and sufentanil in anesthesia for elderly patients undergoing colorectal surgery: A prospective randomized controlled study
Objective: This paper aims to explore the safety and efficacy of alfentanil in anesthesia for laparoscopic colorectal surgery. Methodology: This study was designed as a prospective study. Eighty elderly patients who underwent laparoscopic colorectal surgery between February 2023 to February 2025 were selected and rand...