- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT00290108
The Influence of Injection Rate on EEG Propofol Peak Effect as Measured by Bispectral Index
Studieoversigt
Status
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
The clinical daily routine indicates that slowing the rate of administration of propofol can lead to a reduction of up to 50% in the dose of propofol required to achieve the onset of a clinical endpoint of anesthesia (i.e. loss of consciousness) when titrating to effect. Therefore, it has been concluded that a slow injection requires a smaller dose of propofol as the graded effect is weakened by fast injection. This conclusion contradicts pharmacologic considerations, that a fast injection would lead to a higher peak concentration and in consequence, to a higher peak effect at the effect side, the brain.
The present study was designed to measure the Electroencephalogram (EEG) peak effect of a propofol bolus (2 mg/kg) injected with different infusion rates.
Although it is known that propofol has cardiovascular effects, the influence of injection rate on these cardiovascular changes is less clear. Others found that faster injection rates of propofol caused greater reductions in blood pressure. Other similar studies have shown no difference in blood pressure for different injection rates. An additional aim of this study was therefore to investigate the influence of different injection rates on hemodynamic parameters.
Undersøgelsestype
Tilmelding
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
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Bavaria
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Munich, Bavaria, Tyskland, 81675
- Technische Universität München, Klinikum rechts der Isar, Department of Anesthesiology
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion criteria:
- American Society of Anesthesiologists (ASA) physical status 1-3
- scheduled for elective surgery under general anesthesia.
Exclusion criteria:
- emergency surgery
- obesity
- indication for rapid sequence induction
- drugs that affect the central nervous system
- history of alcohol or drug abuse
- neurological or psychiatric diseases
- contraindications against the use of propofol
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Enkelt gruppeopgave
- Maskning: Enkelt
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
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maximum hypnotic effect as indicated by the minimum BIS value.
|
Sekundære resultatmål
Resultatmål |
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time to loss of consciousness
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time to loss of eye lash reflex
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time to BISmin
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BIS at LOC
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BIS at LOL
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BIS 30 seconds after LOC
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Samarbejdspartnere og efterforskere
Sponsor
Efterforskere
- Studiestol: Eberhard Kochs, MD
Datoer for undersøgelser
Studer store datoer
Studiestart
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- 257/99
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-
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-
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-
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