Dexmedetomidine Combined With Lidocaine Infusion Affect PONV

Summary

BACKGROUND: Few researches have manifested that intravenous (IV) lidocaine or dexmedetomidine decreased the incidence of postoperative nausea and vomiting (PONV). The investigators investigated whether IV lidocaine plus dexmedetomidine infusion could better reduce the incidence of PONV after laparoscopic hysterectomy.

METHODS: Two hundred and forty women with elective laparoscopic hysterectomy were randomly divided into four groups: the control group (group C, n=60) received an equal volume of saline, the lidocaine group (group L, n=60) received IV lidocaine (bolus infusion of 1.5 mg/kg over 10 min, 1.5 mg/kg/h continuous infusion), the dexmedetomidine group (group D, n=60) received dexmedetomidine administration (bolus infusion of 0.5 µg/kg over 10 min, 0.4 µg/kg/h continuous infusion), the lidocaine plus dexmedetomidine group (group LD, n=60) received combination of lidocaine (bolus infusion of 1.5 mg/kg over 10 min, 1.5 mg/kg/h continuous infusion) and dexmedetomidine administration (bolus infusion of 0.5 µg/kg over 10 min, 0.4 µg/kg/h continuous infusion). Primary outcome was the incidence of the first 48 h nausea, vomiting and PONV after surgery. The secondary outcomes included perioperative propofol and remifentanil consumption, postoperative fentanyl requirement, Ramsay sedation score, and bradycardia during post-anaesthesia care unit (PACU) stay.

Conditions

• Lidocaine
• Dexmedetomidine
• Nausea and Vomiting, Postoperative

Interventions

DRUG

lidocaine and dexmedetomidine infusion

Patients received IV bolus infusion of lidocaine (2%) 1.5 mg/kg and dexmedetomidine 0.5 µg/kg diluted with normal saline to 20 ml in the LD group respectively, over 10 minutes before induction of anesthesia, followed by a continuous IV infusion at rate of lidocaine 1.5 mg/kg and dexmedetomidine 0.4 µg/kg made up to 20 mL every hour until 30 min before the end of operation, respectively.

DRUG

Saline infusion

Patients received 20 ml normal saline and 20 ml normal saline in the CON group respectively, over 10 minutes before induction of anesthesia, followed by a continuous IV infusion 20 ml normal saline and 20 ml normal saline every hour until 30 min before the end of surgery

DRUG

Lidocaine infusion

patients received an IV bolus infusion of lidocaine (2%) 1.5 mg/kg made to 20ml with normal saline and 20ml normal saline respectively, over 10 minutes before induction of anesthesia, followed by a continuous IV infusion of lidocaine 1.5 mg/kg made up to 20ml and 20ml normal saline every hour until 30 min before the end of operation, respectively.

DRUG

Dexmedetomidine infusion

Patients received IV bolus infusion of dexmedetomidine 0.5 μg/kg made to 20ml with normal saline and 20ml normal saline respectively, over 10 minutes before induction of anesthesia, followed by a continuous IV infusion of dexmedetomidine 0.4μg/kg made up to 20ml and 20ml normal saline every houruntil 30 min before the end of operation, respectively.

Sponsors & Collaborators

• Anqing Municipal Hospital

  lead OTHER

Study Design

Allocation

RANDOMIZED

Purpose

OTHER

Masking

QUADRUPLE

Model

PARALLEL

Eligibility

Min Age

40 Years

Max Age

60 Years

Sex

FEMALE

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2019-06-01

Primary Completion

2020-08-01

Completion

2021-01-12

Countries

• China

Study Locations