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Titolo:
AUDITORY-EVOKED POTENTIAL INDEX - A QUANTITATIVE MEASURE OF CHANGES IN AUDITORY-EVOKED POTENTIALS DURING GENERAL-ANESTHESIA
Autore:
MANTZARIDIS H; KENNY GNC;
Indirizzi:
LAW HOSP NHS TRUST,DEPT ANAESTHET CARLUKE ML8 5ER LANARK SCOTLAND UNIV GLASGOW,GLASGOW ROYAL INFIRM,DEPT ANAESTHESIA GLASGOW G31 2ER LANARK SCOTLAND
Titolo Testata:
Anaesthesia
fascicolo: 11, volume: 52, anno: 1997,
pagine: 1030 - 1036
SICI:
0003-2409(1997)52:11<1030:API-AQ>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
NEURONAL OSCILLATIONS; SURGICAL STIMULATION; ANESTHESIA; ISOFLURANE; FLUNITRAZEPAM/FENTANYL; ENFLURANE; INDICATOR; PROPOFOL; DEPTH;
Keywords:
ANESTHESIA, DEPTH; MONITORING, AUDITORY EVOKED POTENTIAL, AUDITORY EVOKED POTENTIAL INDEX;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
22
Recensione:
Indirizzi per estratti:
Citazione:
H. Mantzaridis e G.N.C. Kenny, "AUDITORY-EVOKED POTENTIAL INDEX - A QUANTITATIVE MEASURE OF CHANGES IN AUDITORY-EVOKED POTENTIALS DURING GENERAL-ANESTHESIA", Anaesthesia, 52(11), 1997, pp. 1030-1036

Abstract

We describe a novel index derived from the auditory evoked potential,the auditory evoked potential index, and we compare it with latenciesand amplitudes related to clinical signs of consciousness and unconsciousness. Eleven patients, scheduled for total hire replacement under spinal anaesthesia, completed the study The initial mean (SD) value ofthe auditory evoked potential index was 72.5 (11.2). During the firstperiod of unconsciousness it decreased to 39.6 (6.9) and returned to 66.8 (12.5) when patients regained consciousness. Thereafter, similar values were obtained whenever patients lost and regained consciousness. Latencies and amplitudes changed in a similar fashion. From all parameters studied, Na latencies had the greatest overlap between successive awake and asleep states. The auditory evoked potential index and Nhlatencies had no overlay. The consistent changes demonstrated suggestthat the auditory evoked potential index could be used as a reliable indicator of potential awareness during propofol anaesthesia instead of latencies and amplitudes.

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Documento generato il 19/01/20 alle ore 08:59:40