To observe the safety and effectiveness of perioperative analgesia with ultrasound-guided retrolaminar block during laparoscopic cholecystectomy.

A total of 60 patients who underwent laparoscopic cholecystectomy in the Civil Aviation General Hospital from June 2019 to June 2020 were selected and divided into retrolaminar block group and control group by random number method. Patients in the retrolaminar block group underwent ultrasound-guided retrolaminar block before induction of anesthesia, and the control group underwent induction of anesthesia directly. Indicators included the amount of sufentanil and remifentanil in the two groups during the operation; MAP and HR at the entrance, just before pneumoperitoneum, 10 minutes after pneumoperitoneum, just after the operation, and 2 hours after operation; VAS pain scores at 2, 6, and 24 h after operation, the amount of dezocine within 24 hours after operation, and the incidence of complications such as nausea and vomiting within 24 hours after operation.

Compared with the control group, the retrolaminar block group reduced the patients’ VAS pain scores at 2 and 6 h after the operation (P<0.05), and the dosage and usage rate of dezocine at 24 h after the operation were significantly reduced in the retrolaminar block group (P<0.05). There were no statistical differences in other observation indicators.

Ultrasound-guided retrolaminar block does not cause the hemodynamic changes during laparoscopic cholecystectomy, and effectively relieves the pain of patients within 6 h after operation.