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Comparison of the Effect of Remimazolam and Propofol on Perioperative Hypothermia Under Spinal Anesthesia

Comparison of the Effect of Remimazolam and Propofol on Perioperative Hypothermia Under Spinal Anesthesia: A Randomized Control Study.

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05574257
Enrollment
82
Registered
2022-10-10
Start date
2022-02-01
Completion date
2022-09-02
Last updated
2022-10-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gynecologic Disease, Lower Extremity Problem, Urinary Tract Disease

Brief summary

After dividing the patients into two groups, sedation is performed with propofol and remimazolam, respectively, after spinal anesthesia. Compare the patient's body temperature change after surgery.

Detailed description

Patients in the study were randomly assigned to the propofol group (Group P) and the remimazolam group (Group R) in a 1:1 ratio. Study drugs are prepared in the same 50 ml syringe, double-blind to group assignment. All patients are not given pre-anesthetic medication, and body temperature, blood pressure, and heart rate are measured in the recovery room after surgery at 10-minute intervals from just before anesthesia induction to surgery. If hypotension or bradycardia occurs during surgery and is not corrected even after rapid fluid infusion, ephedrine is increased by 10 mg or glycopyrrolate 0.2 mg or atropine 0.5 mg is administered. If spinal anesthesia is successfully performed, check the patient's anesthesia height. When the appropriate level of anesthesia is confirmed, Group P receives propofol at 25-100ug/kg/min and maintains the BIS at 70-80. Group R receives remimazolam at 1-20ug/kg/min and maintains BIS between 70-80. Both groups apply a conventionally used air heating device, and the operating room temperature is kept at 20 °C. If shivering occurs during surgery, the elapsed time from induction and the shivering grades are recorded. At the end of the surgery, record total anesthesia time and surgery time, fluid dose, and drug use. After moving to the recovery room, the patient's body temperature, systolic blood pressure, diastolic pressure, heart rate, the incidence of shivering, and the grade of shivering are checked. When shivering occurs, a forced air-warming device is applied first, and if shivering continues, administer meperidine in 5mg increments until the patient is comfortable and record the total dose.

Interventions

DRUGPropofol

Propofol is injected at 25-100ug/kg/min (immediately after spinal anesthesia to the end of surgery) to maintain the BIS at 70-80.

DRUGRemimazolam

Remimazolam is injected at 1-20ug/kg/min (immediately after spinal anesthesia to the end of surgery) to maintain the BIS at 70-80.

Sponsors

Wonkwang University Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
19 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Those aged between 19 and under 65 who are undergoing surgery under spinal anesthesia at Wonkwang University Hospital. * American Society of Anesthesiologists' physical status class (ASA) award class I-III.

Exclusion criteria

* Patients with fever before surgery * Patients taking antipyretics before surgery * Patients who are chronically using anti-inflammatory drugs * High-risk patients with ASA class IV or higher * Patient who refused sedation * Patients with thyroid dysfunction.

Design outcomes

Primary

MeasureTime frameDescription
The incidence of perioperartive hypothermiaDuring surgeryMeasure the body temperature on the tympanic membrane three times and enter the highest value.

Secondary

MeasureTime frameDescription
core body temperatureBefore the induction of anesthesiaEvery 10 minutes, measure the body temperature three times on the tympanic membrane and enter the highest value.
shivering gradesDuring surgery1. None (Grade 0): no shivering noted on palpation of the masseter, neck, or chest wall 2. Mild (Grade 1): shivering localized to the neck and/or thorax only 3. Moderate (Grade 2): shivering involved the gross movement of the upper extremities (in addition to neck and thorax) 4. Severe (Grade 3): shivering involved gross trunk and upper and lower extremities movements.

Countries

South Korea

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026