Preoperative Anxiolysis With Intravenous Midazolam on Intraoperative Sevoflurane Gas Consumption
The Effect of Preoperative Anxiolysis With Intravenous Midazolam on Intraoperative Sevoflurane Gas Consumption: A Prospective Randomized Controlled Study
1 other identifier
interventional
80
1 country
1
Brief Summary
This prospective, randomized, double-blind, placebo-controlled study is performed after obtaining written informed consent of patients who are scheduled for elective general surgery. After the admission to the preoperative unit 30 minutes before the surgery, The preoperative anxiety of patients is evaluated by The State-Trait Anxiety Inventory (STAI). Patients are randomly assigned to one of two groups in a 1:1 ratio by a computer-generated list. Patients receive midazolam IV at 0.04 mg/kg (group M) and an equal volume of saline IV (group C, control group). Anesthesia is induced with 2mg/kg of IV propofol. At a dose of 0.6 mg/kg, IV rocuronium bromide is given for neuromuscular blockade. Anesthesia is maintained at 2% sevoflurane. At the end of the surgery, anesthesia is terminated and the awake patients are extubated.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_4
Started Dec 2022
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 9, 2022
CompletedFirst Posted
Study publicly available on registry
May 12, 2022
CompletedStudy Start
First participant enrolled
December 2, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 30, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
April 30, 2024
CompletedMay 1, 2024
April 1, 2024
1.4 years
May 9, 2022
April 30, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Sevoflurane consumption
The amount of sevoflurane consumed (ml)
1 hour
Secondary Outcomes (1)
end-tidal sevoflurane concentration (%)
1 hour
Other Outcomes (2)
sevoflurane MAC
1 hour
inspiratory sevoflurane (%)
1 hour
Study Arms (2)
Group M
ACTIVE COMPARATORPatients receive midazolam IV at 0.04 mg/kg (group M).
Group C
PLACEBO COMPARATORPatients receive an equal volume of saline IV (group C, control group).
Interventions
Eligibility Criteria
You may qualify if:
- American Society of Anesthesiologists physical status 1 and 2
- patients who are scheduled for elective surgery
- BMI \<30
You may not qualify if:
- history of psychiatric disease
- use of psychotropic medications
- neurological disorders
- cancer
- chronic pain
- cardiovascular, respiratory, and hepatic diseases.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Department of Anesthesiology, Cukurova University Faculty of Medicine
Adana, 01130, Turkey (Türkiye)
Related Publications (4)
Kil HK, Kim WO, Chung WY, Kim GH, Seo H, Hong JY. Preoperative anxiety and pain sensitivity are independent predictors of propofol and sevoflurane requirements in general anaesthesia. Br J Anaesth. 2012 Jan;108(1):119-25. doi: 10.1093/bja/aer305. Epub 2011 Nov 13.
PMID: 22084330BACKGROUNDMaranets I, Kain ZN. Preoperative anxiety and intraoperative anesthetic requirements. Anesth Analg. 1999 Dec;89(6):1346-51. doi: 10.1097/00000539-199912000-00003.
PMID: 10589606BACKGROUNDMelvin MA, Johnson BH, Quasha AL, Eger EI 3rd. Induction of anesthesia with midazolam decreases halothane MAC in humans. Anesthesiology. 1982 Sep;57(3):238-41. doi: 10.1097/00000542-198209000-00018. No abstract available.
PMID: 7114548BACKGROUNDIp HY, Abrishami A, Peng PW, Wong J, Chung F. Predictors of postoperative pain and analgesic consumption: a qualitative systematic review. Anesthesiology. 2009 Sep;111(3):657-77. doi: 10.1097/ALN.0b013e3181aae87a.
PMID: 19672167BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Ersel Gulec, MD
Cukurova University
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, CARE PROVIDER
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
May 9, 2022
First Posted
May 12, 2022
Study Start
December 2, 2022
Primary Completion
April 30, 2024
Study Completion
April 30, 2024
Last Updated
May 1, 2024
Record last verified: 2024-04
Data Sharing
- IPD Sharing
- Will not share