NCT06002568

Brief Summary

The goal of this clinical trial is to learn about the effects of binaural beats on maintenance of general anesthesia in patients undergoing thyroidectomy without intraoperative neuromonitoring. The main question it aims to answer is:

  • 1\) Does applying binaural beats during surgery reduce the gas anesthetics (especially sevoflurane) requirement to maintaining adequate anesthetic depth during general anesthesia?
  • 2\) Does applying binaural beats during surgery affect intraoperative hemodynamic stability or post operative nausea and vomiting? Participants will wear headsets with a sound generator which contains music files (binaural beat file in the intervention group (BB) ; silent file in control group (C)) according to the randomization. Researchers will compare the BB and C group to see if intraoperative binaural beats reduce the requirements of sevoflurane for maintaining adequate anesthetic depth.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
122

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Aug 2023

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 25, 2023

Completed
7 days until next milestone

Study Start

First participant enrolled

August 1, 2023

Completed
20 days until next milestone

First Posted

Study publicly available on registry

August 21, 2023

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 29, 2025

Completed
2 days until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2025

Completed
Last Updated

August 21, 2023

Status Verified

July 1, 2023

Enrollment Period

2 years

First QC Date

July 25, 2023

Last Update Submit

August 15, 2023

Conditions

Keywords

SevofluraneBrain wavesBinaural Beats

Outcome Measures

Primary Outcomes (1)

  • Average end tidal sevoflurane concentration

    Average end tidal sevoflurane concentrations required for maintenance of general anesthesia from surgical incision to skin closure

    From the starting of surgery to the final suture of skin

Secondary Outcomes (15)

  • End tidal minimal alveolar concentration - Maximum

    From the starting of surgery to the final suture of skin

  • End tidal minimal alveolar concentration - Minimum

    From the starting of surgery to the final suture of skin

  • Anxiety

    Right after arriving the operating room

  • Anxiety

    Just before leaving the post anesthesia care unit

  • Vital sign

    From the starting to the end of general anesthesia

  • +10 more secondary outcomes

Study Arms (2)

Control

PLACEBO COMPARATOR

In the control group, a silent state (a wave file made without sound) is applied via the sound generator and a headset, at the starting of general anesthesia induction. The sound generator volume is set to 60 dB. The sound generator and the headset is assigned after the randomization, and is blinded to the patient and the investigator. This sound is applied during the operation, and at the time of the final skin suture, the sound generator and the headset will be removed from the patient.

Procedure: Silent

Binaural Beat

EXPERIMENTAL

In the experimental group, the binaural beat which is produced by the beat of 1Hz difference is applied via the sound generator and a headset, at the starting of general anesthesia induction. The sound generator volume is set to 60 dB. The sound generator and the headset is assigned after the randomization, and is blinded to the patient and the investigator. This sound is applied during the operation, and at the time of the final skin suture, the sound generator and the headset will be removed from the patient.

Procedure: Binaural beats

Interventions

SilentPROCEDURE

Apply wave file created in silence.

Control

Apply wave file which is intended to generate binaural beats by applying waves of different frequency (1Hz difference) in each ear.

Binaural Beat

Eligibility Criteria

Age20 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Patients who are scheduled for thyroidectomy without neuromonitoring
  • Patients aged 20-60 who require general anesthesia over 2 hours
  • Patients who are able to provide written consent to participate in the clinical trial, to understand the procedure of this clinical trial, and to fill out the questionnaire appropriately
  • Patients with ASA physical status classification 1-2

You may not qualify if:

  • Patients with hearing loss or using hearing aids
  • Patients who received narcotic analgesics or sedative drugs within 1 week
  • Patients with alcohol or drug dependence
  • Patients with drug hypersensitivity to sevoflurane
  • Patients with family history or past history of malignant hyperthermia
  • Patients with neuromuscular disease of myasthenia gravis
  • Patients with arrhythmia, cardiovascular disease, and decreased heart function
  • Patients with kidney failure
  • Patients who are judged to be inappropriate for this clinical trial according to the opinions of investigators

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Seoul National University Hospital

Seoul, South Korea

Location

Related Publications (14)

  • American Society of Anesthesiologists Task Force on Intraoperative Awareness. Practice advisory for intraoperative awareness and brain function monitoring: a report by the american society of anesthesiologists task force on intraoperative awareness. Anesthesiology. 2006 Apr;104(4):847-64. doi: 10.1097/00000542-200604000-00031. No abstract available.

    PMID: 16571982BACKGROUND
  • Torri G. Inhalation anesthetics: a review. Minerva Anestesiol. 2010 Mar;76(3):215-28.

    PMID: 20203550BACKGROUND
  • Saller T, Hubig L, Seibold H, Schroeder Z, Wang B, Groene P, Perneczky R, von Dossow V, Hinske LC. Association between post-operative delirium and use of volatile anesthetics in the elderly: A real-world big data approach. J Clin Anesth. 2022 Dec;83:110957. doi: 10.1016/j.jclinane.2022.110957. Epub 2022 Sep 6.

    PMID: 36084424BACKGROUND
  • Vutskits L, Xie Z. Lasting impact of general anaesthesia on the brain: mechanisms and relevance. Nat Rev Neurosci. 2016 Oct 18;17(11):705-717. doi: 10.1038/nrn.2016.128.

    PMID: 27752068BACKGROUND
  • Ji D, Karlik J. Neurotoxic Impact of Individual Anesthetic Agents on the Developing Brain. Children (Basel). 2022 Nov 19;9(11):1779. doi: 10.3390/children9111779.

    PMID: 36421228BACKGROUND
  • Wilder RT, Flick RP, Sprung J, Katusic SK, Barbaresi WJ, Mickelson C, Gleich SJ, Schroeder DR, Weaver AL, Warner DO. Early exposure to anesthesia and learning disabilities in a population-based birth cohort. Anesthesiology. 2009 Apr;110(4):796-804. doi: 10.1097/01.anes.0000344728.34332.5d.

    PMID: 19293700BACKGROUND
  • Block RI, Thomas JJ, Bayman EO, Choi JY, Kimble KK, Todd MM. Are anesthesia and surgery during infancy associated with altered academic performance during childhood? Anesthesiology. 2012 Sep;117(3):494-503. doi: 10.1097/ALN.0b013e3182644684.

    PMID: 22801049BACKGROUND
  • Fu VX, Sleurink KJ, Janssen JC, Wijnhoven BPL, Jeekel J, Klimek M. Perception of auditory stimuli during general anesthesia and its effects on patient outcomes: a systematic review and meta-analysis. Can J Anaesth. 2021 Aug;68(8):1231-1253. doi: 10.1007/s12630-021-02015-0. Epub 2021 May 19.

    PMID: 34013463BACKGROUND
  • Padmanabhan R, Hildreth AJ, Laws D. A prospective, randomised, controlled study examining binaural beat audio and pre-operative anxiety in patients undergoing general anaesthesia for day case surgery. Anaesthesia. 2005 Sep;60(9):874-7. doi: 10.1111/j.1365-2044.2005.04287.x.

    PMID: 16115248BACKGROUND
  • Wiwatwongwana D, Vichitvejpaisal P, Thaikruea L, Klaphajone J, Tantong A, Wiwatwongwana A; Medscape. The effect of music with and without binaural beat audio on operative anxiety in patients undergoing cataract surgery: a randomized controlled trial. Eye (Lond). 2016 Nov;30(11):1407-1414. doi: 10.1038/eye.2016.160. Epub 2016 Oct 14.

    PMID: 27740618BACKGROUND
  • Bae J, Yoo S, Kim H, Kim Y, Kim JT, Lim YJ, Kim HS. Effect of real-time binaural music on sedation with dexmedetomidine during spinal anesthesia: A triple-arm, assessor-blind, randomized controlled trial. J Clin Anesth. 2023 Feb;84:110997. doi: 10.1016/j.jclinane.2022.110997. Epub 2022 Nov 10.

    PMID: 36371942BACKGROUND
  • Schmid W, Marhofer P, Opfermann P, Zadrazil M, Kimberger O, Triffterer L, Marhofer D, Klug W. Brainwave entrainment to minimise sedative drug doses in paediatric surgery: a randomised controlled trial. Br J Anaesth. 2020 Sep;125(3):330-335. doi: 10.1016/j.bja.2020.05.050. Epub 2020 Jul 8.

    PMID: 32653082BACKGROUND
  • Facco E, Stellini E, Bacci C, Manani G, Pavan C, Cavallin F, Zanette G. Validation of visual analogue scale for anxiety (VAS-A) in preanesthesia evaluation. Minerva Anestesiol. 2013 Dec;79(12):1389-95. Epub 2013 Jul 9.

    PMID: 23860442BACKGROUND
  • Long MHY, Lim EHL, Balanza GA, Allen JC Jr, Purdon PL, Bong CL. Sevoflurane requirements during electroencephalogram (EEG)-guided vs standard anesthesia Care in Children: A randomized controlled trial. J Clin Anesth. 2022 Oct;81:110913. doi: 10.1016/j.jclinane.2022.110913. Epub 2022 Jun 27.

    PMID: 35772250BACKGROUND

Study Officials

  • Jeong-Hwa Seo, MD., PhD.

    Seoul National University Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Jeong-Hwa Seo, MD., PhD.

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: A prospective randomized, placebo-controlled trial
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 25, 2023

First Posted

August 21, 2023

Study Start

August 1, 2023

Primary Completion

July 29, 2025

Study Completion

July 31, 2025

Last Updated

August 21, 2023

Record last verified: 2023-07

Locations