Effect of Rematazolam Besylate, Propofol, and Sevoflurane Perioperative Sedation on Incidence of Emergence Agitation and Hemodynamics in Patients Undergoing Laparoscopic Abdominal Surgery

Effect of Rematazolam Besylate, Propofol, and Sevoflurane Perioperative Sedation on Incidence of Emergence Agitation and Hemodynamics in Patients Undergoing Laparoscopic Abdominal Surgery

Effect of Rematazolam Besylate, Propofol, and Sevoflurane Perioperative Sedation on Incidence of Emergence Agitation and Hemodynamics in Patients Undergoing Laparoscopic Abdominal Surgery

Emergence agitation (EA) is a transient, self-limited, non-fluctuating state of psychomotor excitement, which closely revolves around the emergence of general anesthesia. Uncontrolled EA during the recovery period increases the potential risk of injury to patients and medical staff, resulting in varying degrees of adverse consequences, such as elevated blood pressure, incision rupture, bleeding, cardio-cerebrovascular accidents and so on, leading to a great waste of resources. Accumulating scientific evidence indicates that the incidence of EA is related to the use of perioperative sedative drugs. As a novel ultra-short-acting benzodiazepines drugs, Remimazolam has been accepted for induction and maintenance of clinical anesthesia. Compared to traditional benzodiazepines drugs, Remimazolam combines the safety of midazolam with the effectiveness of propofol, and also has the advantages of acting quickly, short half-life, no injection pain, slight respiratory depression, independent of liver and kidney metabolism, long-term infusion without accumulation, and has a specific antagonist: flumazenil. This study aims to investigate whether perioperative sedation of Remimazolam besylate, propofol, and sevoflurane have different effects on the incidence of emergence agitation and hemodynamics in patients undergoing laparoscopic abdominal surgery.

Emergence Agitation, Remimazolam Besylate, Perioperative Sedation, Laparoscopic Abdominal Surgery, Anesthesia, General

Emergence Agitation, Remimazolam Besylate, Propofol, Sevoflurane, Laparoscopic Abdominal Surgery, Perioperative Sedation, Anesthesia, General

Care provider and investigator (anesthesiologist) cannot be blinded for different appearance of remimazolam, propofol and sevoflurane.

Induction of anesthesia Slowly inject Remimazolam Besylate 0.3~0.5 mg/kg (about 1 minute) until loss of consciousness (LoC) and BIS<60, if the degree of sedation is insufficient, additional Remimazolam Besylate (0.05 mg/kg each time) is allowed. After the LoC, sufentanil 0.3~0.5 ug/kg and cisatracurium besilate 0.2-0.3 mg/kg are injected intravenously. After the muscles are sufficiently relaxed and blood circulation is stable, the tracheal tube is inserted under a glide scope.

Induction of anesthesia Slowly inject Propofol 2~2.5 mg/kg (about 1 minute) until loss of consciousness (LoC) and BIS<60, if the degree of sedation is insufficient, additional Propofol (0.5 mg/kg each time) is allowed. After the LoC, sufentanil 0.3~0.5 ug/kg and cisatracurium besilate 0.2-0.3 mg/kg are injected intravenously. After the muscles are sufficiently relaxed and blood circulation is stable, the tracheal tube is inserted under a glide scope.

Induction of anesthesia Slowly inject Etomidate 0.03 mg/kg (about 1 minute) until loss of consciousness (LoC) and BIS<60, if the degree of sedation is insufficient, additional etomidate (0.03 mg/kg each time) is allowed. After the LoC, sufentanil 0.3~0.5 ug/kg and cisatracurium besilate 0.2-0.3 mg/kg are injected intravenously. After the muscles are sufficiently relaxed and blood circulation is stable, the tracheal tube is inserted under a glide scope.

Anesthesia was induced with Rematazolam Besylate 0.3~0.5 mg/kg (about 1 minute) by intravenous injection until the loss of consciousness (LoC) and BIS<60, followed by remimazolam 1-3 mg/kg/h until the end of surgery.

Anesthesia was induced with Propofol 2~2.5 mg/kg (about 1 minute) by intravenous injection until the loss of consciousness (LoC) and BIS<60, followed by remimazolam 5~12 mg/kg/h until the end of surgery.

Anesthesia was induced with etomidate 0.03 mg/kg (about 1 minute) by intravenous injection until the loss of consciousness (LoC) and BIS<60, followed by 2 %-3 % Sevoflorane until the end of surgery.

Anesthesia was induced with Sufentanil 0.3~0.5 ug/kg by intravenous injection after the LoC and BIS<60.

Anesthesia was induced with cisatracurium besilate 0.2-0.3 mg/kg by intravenous injection after the LoC and BIS<60, followed by 0.1 mg/kg/h Cisatracurium Besylate during the operation.

The Riker Sedation-Agitation Scale (RSAS) score ≥ 5 points indicates the presence of emergence agitation.

Duration from the time patients awakening to the time of departure from post-anesthesia care unit (PACU), average 1 hour.

The Richmond Agitation-Sedation Scale (RASS) ≥ +1 points indicates the presence of emergence agitation.

"30 minutes before intubation", "immediately after intubation", "every 5 minutes after intubation until the patient leaves the post-anesthesia care unit, in about six hours", " mornings and afternoons on the 1st, 3rd and 7th day after operation".

"30 minutes before intubation", "immediately after intubation", "every 5 minutes after intubation until the patient leaves the post-anesthesia care unit, in about six hours", " mornings and afternoons on the 1st, 3rd and 7th day after operation".

"30 minutes before intubation", "immediately after intubation", "every 5 minutes after intubation until the patient leaves the post-anesthesia care unit, in about six hours", " mornings and afternoons on the 1st, 3rd and 7th day after operation".

"30 minutes before intubation", "immediately after intubation", "every 5 minutes after intubation until the patient leaves the post-anesthesia care unit, in about six hours", " mornings and afternoons on the 1st, 3rd and 7th day after operation".

Recovery times is defined as the period from discontinuation of anesthetic drugs to the recovery of the patient's self-consciousness and can respond correctly to external stimuli.

Delayed emergence is defined as failure to shake hands and no significant response to nociceptive stimuli more than 30 minutes after surgery.

The Numericrating scale (NRS) is grouped from 0 to 10. The degree of pain increased directly with the score.

Inclusion Criteria: 1 Aged 18-65 years, sex was not limited; 2 BMI 18-30kg/m2; 3 Patients were scheduled for elective laparoscopic abdominal surgery under general anesthesia, the operation time 2h~4h; 4 ASA Ⅰ-III; Exclusion Criteria: 1 Relative contraindications to general anesthesia: Patients with severe heart and lung disease, severe infection, uncontrolled hypertension, diabetes, and severe diabetic complications; 2 Abnormal renal and liver function: AST or ALT≥2.5×ULN, TBIL≥1.5×ULN, Serum creatinine concentration (SCC)≥1.5×ULN; 3 People with a history of mental illness or long-term use of psychotropic drugs (dementia, schizophrenia), chronic analgesic drug use, alcoholism, and cognitive impairment; 4 Any cardiovascular or cerebrovascular accidents occurred within 3 months, such as myocardial infarction, stroke, transient ischemic attack; 5 Female pregnant patients; 6 Patients undergoing hepatobiliary surgery; 7 Allergy to the experimental drug; 8 Unable to cooperate to complete the test, the patient or family member rejected the participant;