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The effect of noise on bispectral index during general anesthesia with sevoflurane: a randomized, double blind, cross-over trial

The effect of noise on bispectral index during general anesthesia with sevoflurane: a randomized, double blind, cross-over trial

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
TCTR
Registry ID
TCTR20170904001
Enrollment
Unknown
Registered
2017-09-04
Start date
2017-05-01
Completion date
Unknown
Last updated
2026-08-03

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

Conditions

Noise Depth of anesthesia Bispectral index (BIS) Sevoflurane Minimal Alveolar Concentration (MAC) Bispectral Index Noise Depth of anesthesia Noise reduction General anesthesia

Interventions

Patient who received 80 dB of noise for 3 minutes then no intervention for 1 minute and then silence for 3 minutes after induction and intubation. ,Patient who received silence for 3 minutes then no i
Experimental Procedure/Surgery,Active Comparator Procedure/Surgery
Noise&#45
Silence (NS),Silence&#45
Noise (SN)

Sponsors

None
Lead Sponsor

Eligibility

Sex/Gender
All
Age
16 Years to 75 Years

Inclusion criteria

Inclusion criteria: American Society of Anesthesiology Physical Status (ASA) I or II General anesthesia with endotracheal tube insertion

Exclusion criteria

Exclusion criteria: Hearing loss (whisper test) Alcohol or drug abuse Chronic lung disease or long term opioid use Psychosis or Psychomimetic drug use Steroid and herb use History of Propofol, cisatracurium and adhesive tape allergies Medical history or family history of Malignant hyperthermia

Design outcomes

Primary

MeasureTime frame
Mean BIS values Induction peroid of anesthesia Bispectral index

Secondary

MeasureTime frame
Maximum BIS values Induction peroid of anesthesia Bispectral index ,Incidence of BIS>60 Induction peroid of anesthesia Bispectral index ,BIS scores variation Induction peroid of anesthesia Bispectral index

Countries

Thailand

Contacts

Public ContactPudkrong Kaewpichit

Faculty of medicine, Chulalongkorn university

puddingcity@gmail.com0886773355

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026