Hemispheric‐synchronisation during anaesthesia: a double‐blind randomised trial using audiotapes for intra‐operative nociception control
Anaesthesia · randomised controlled trial, double blind
Attributed extracts from the research record
“In conclusion, our findings demonstrate that patients using intra‐operative Hemi‐Sync tapes whilst undergoing a range of different surgical procedures under standardised general anaesthesia with a laryngeal mask require substantially less fentanyl when compared with controls”
“It is possible that the Hemi‐Sync tapes, used intra‐operatively or with the addition of pre‐ and postoperative tapes, could have longer‐term effects on postoperative recovery, and may even result in cost savings through reduced analgesic requirement and shorter hospital stay.”
“In our study, we found that patients exposed to a Hemi‐Sync audio tape whilst undergoing surgery under ‘light’ general anaesthesia required significantly less analgesia with fentanyl when compared with patients listening to a blank tape or to classical music.”
Evidence and provenance
Chapter Trust Factor uses a minimum of three distinct qualifying studies. Publication records retain their own evidence and assessment.
Study design and assessment
- design
- randomised controlled trial, double blind
- assessment
- Not recorded
- trust Factor
- score
- 3
- scope
- Paper
- status
- assessed
- randomized Controlled Trial
- true
- blinding
- double
- peer Reviewed
- false
- basis
- Randomized controlled design recorded in the publication-specific design or bibliographic indexing.
- sources
https://onlinelibrary.wiley.com/doi/full/10.1046/j.1365-2044.1999.00958.x
- review Scope
- Existing publication-specific assessments and bibliographic indexing; no blanket full-text appraisal.
- assessed At
- 2026-10-27
- jadad
- status
- unassessed
- score
- Not recorded
- evidence
- Not recorded
Topics and recorded topic scores
- key
- sound:i
- title
- Brain entrainment, pain, anxiety and heart-rate variability
- collection
- sound
- trust Score
- 3
Citation snapshot and identifiers
- id
- src-d2427f4063b3
- doi
- 10.1046/j.1365-2044.1999.00958.x
- pmid
- Not recorded
- citation Snapshot
- Not recorded
- citations By Collection
- sound
- 66
Complete approved library record
- id
- src-d2427f4063b3
- publication Key
- Not recorded
- aliases
- None recorded
- title
- Hemispheric‐synchronisation during anaesthesia: a double‐blind randomised trial using audiotapes for intra‐operative nociception control
- journal
- Anaesthesia
- neurotransmitters
- None recorded
- year
- Not recorded
- authors
- design
- randomised controlled trial, double blind
- kind
- Source record
- identity Conflict
- Not recorded
- doi
- 10.1046/j.1365-2044.1999.00958.x
- urls
https://doi.org/10.1046/j.1365-2044.1999.00958.x
- collections
sound
- categories
Methods & context
- targets
- None recorded
- priority
- 1
- quotes
“In conclusion, our findings demonstrate that patients using intra‐operative Hemi‐Sync tapes whilst undergoing a range of different surgical procedures under standardised general anaesthesia with a laryngeal mask require substantially less fentanyl when compared with controls” · “It is possible that the Hemi‐Sync tapes, used intra‐operatively or with the addition of pre‐ and postoperative tapes, could have longer‐term effects on postoperative recovery, and may even result in cost savings through reduced analgesic requirement and shorter hospital stay.” · “In our study, we found that patients exposed to a Hemi‐Sync audio tape whilst undergoing surgery under ‘light’ general anaesthesia required significantly less analgesia with fentanyl when compared with patients listening to a blank tape or to classical music.”
- summary
- limitation
- citation Count
- 66
- paper Trust Assessment
- score
- 3
- scope
- Paper
- status
- assessed
- randomized Controlled Trial
- true
- blinding
- double
- peer Reviewed
- false
- basis
- Randomized controlled design recorded in the publication-specific design or bibliographic indexing.
- sources
https://onlinelibrary.wiley.com/doi/full/10.1046/j.1365-2044.1999.00958.x
- review Scope
- Existing publication-specific assessments and bibliographic indexing; no blanket full-text appraisal.
- assessed At
- 2026-10-27
- citations By Collection
- sound
- 66
- topics
- key
- sound:i
- title
- Brain entrainment, pain, anxiety and heart-rate variability
- collection
- sound
- trust Score
- 3
- journal Key
- anaesthesia
- journal Label
- Anaesthesia
- chapter Entries
- id
- i-src-d2427f4063b3
- record Id
- src-d2427f4063b3
- title
- Hemispheric‐synchronisation during anaesthesia: a double‐blind randomised trial using audiotapes for intra‐operative nociception control
- journal
- Anaesthesia
- year
- Not recorded
- authors
- design
- randomised controlled trial, double blind
- urls
https://doi.org/10.1046/j.1365-2044.1999.00958.x
- quotes
- text
- “In conclusion, our findings demonstrate that patients using intra‐operative Hemi‐Sync tapes whilst undergoing a range of different surgical procedures under standardised general anaesthesia with a laryngeal mask require substantially less fentanyl when compared with controls”
- emphasis
- false
- text
- “It is possible that the Hemi‐Sync tapes, used intra‐operatively or with the addition of pre‐ and postoperative tapes, could have longer‐term effects on postoperative recovery, and may even result in cost savings through reduced analgesic requirement and shorter hospital stay.”
- emphasis
- false
- text
- “In our study, we found that patients exposed to a Hemi‐Sync audio tape whilst undergoing surgery under ‘light’ general anaesthesia required significantly less analgesia with fentanyl when compared with patients listening to a blank tape or to classical music.”
- emphasis
- false
- citation Count
- 66
- source Pages
8
- targets
- None recorded
- categories
Methods & context
- doi
- 10.1046/j.1365-2044.1999.00958.x
- pmid
- Not recorded
- paper Trust Assessment
- score
- 3
- scope
- Paper
- status
- assessed
- randomized Controlled Trial
- true
- blinding
- double
- peer Reviewed
- false
- basis
- Randomized controlled design recorded in the publication-specific design or bibliographic indexing.
- sources
https://onlinelibrary.wiley.com/doi/full/10.1046/j.1365-2044.1999.00958.x
- review Scope
- Existing publication-specific assessments and bibliographic indexing; no blanket full-text appraisal.
- assessed At
- 2026-10-27
- collection
- sound
- chapter Number
- 1
- topic Id
- i
- topic Title
- Brain entrainment, pain, anxiety and heart-rate variability
- trust Score
- 3
- jadad
- status
- unassessed
- score
- Not recorded
- condition Evidence
- None recorded
- conditions
- None recorded
- topic Trust Scores
3
- full Text
- status
- not-indexed
- retrieval Available
- false