Effects of Lidocaine, Dexmedetomidine, and Their Combination on Quality of Recovery Undergoing Laparoscopic Total Hysterectomy
Effects of Lidocaine, Dexmedetomidine, and Their Combination on Quality of Recovery Undergoing Laparoscopic Total Hysterectomy
BACKGROUND: Some studies have revealed that intravenous (IV) lidocaine or dexmedetomidine might improve the quality of recovery undergoing laparoscopic surgery. The investigators investigated whether co-administration lidocaine and dexmedetomidine could better improve the the quality of recovery after laparoscopic total hysterectomy.
METHODS: One hundred and forty-four women with elective laparoscopic total hysterectomy were randomly divided into four groups: Patients in group L received a bolus infusion of lidocaine (2%; 1.5 mg/kg over 10 min before the induction of anesthesia), and then lidocaine was infused at a rate of 1.5 mg/kg/h until close the pneumoperitoneum. Patients in group D received a bolus infusion of dexmedetomidine (0.5 µg/kg over 10 min before the induction of anesthesia), and then dexmedetomidine was infused at a rate of 0.4 μg/kg/h until close the pneumoperitoneum. Patients in group LD received a bolus infusion of lidocaine (2%; 1.5 mg/kg) and dexmedetomidine (0.5 µg/kg) over 10 min before the induction of anesthesia, and then lidocaine and dexmedetomidine were infused at a rate of 1.5 mg/kg/h and 0.4 µg/kg/h until close the pneumoperitoneum, respectively. Patients in group C received the same volume of normal saline 10 min before the induction of anesthesia, and then normal saline (0.9%) was continuously infused in an equal volume until close the pneumoperitoneum. Primary outcome was the quality of recovery (QoR-40) at 1 day prior to sugery, 1 day after sugery, and 2 days after sugery. The secondary outcomes included perioperative remifentanil consumption, postoperative VAS scores, the incidence of postoperative nausea and vomiting, postoperative rescue analgesics and anti-emetics, recovery time, extubation time, and Ramsay sedation scale at 5 min, 10min, 30 min, 60 min after extubation.
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