Cognitive function after sevoflurane- versus propofol-based anaesthesia for on-pump cardiac surgery

ISRCTN ISRCTN44821042
DOI https://doi.org/10.1186/ISRCTN44821042
Secondary identifying numbers Cogdys1
Submission date
18/02/2010
Registration date
15/03/2010
Last edited
15/03/2010
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Surgery
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Not provided at time of registration

Contact information

Prof Matthias Heringlake
Scientific

Department of Anesthesiology
University of Luebeck
Ratzeburger Allee 160
Luebeck
23538
Germany

Email heringlake@t-online.de

Study information

Study designRandomised controlled investigator-blinded trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titleCognitive function after sevoflurane- versus propofol-based anaesthesia for on-pump cardiac surgery: a randomised controlled trial
Study acronymC01
Study objectivesThe present study was designed to contribute to the question, whether a sevoflurane-based anesthesia concept improves cognitive outcomes in patients undergoing cardiac surgery with cardiopulmonary bypass in comparison to a propofol-based total intravenous anaesthesia.

The secondary objective was to determine if the treatment with sevoflurane in comparison to a propofol-based anaesthesia leads to differences in regional cerebral oxygenation measured with near-infrared spectroscopy (NIRS). Further, differences in the relationship between regional cerebral desaturation and cognitive decline, and differences between anaesthetic regimens regarding relevant clinical outcome-parameters should be investigated.
Ethics approval(s)The Ethical Committee of the University of Luebeck approved in February 2006 (ref: 05-139)
Health condition(s) or problem(s) studiedCardiac surgery, cognitive dysfunction
InterventionAnaesthesia protocol 1: intravenous group (PROP):
Induction: etomidate 0.2 - 0.3 mg/kg, sufentanil 1 µg/kg, pancuronium 0.07 - 0.1 mg/kg
Maintenance: remifentanil 0.2 - 0.25 µg/kg/min, propofol 3 - 5 mg/kg/h achieving a bispectral index (BIS) of 40 - 50.

Anaesthesia protocol 2: volatile group (SEVO):
Induction: etomidate 0.2 - 0.3 mg/kg, sufentanil 1 µg/kg, pancuronium 0.07 - 0.1 mg/kg
Maintenance: sevoflurane 0.6 - 1.5 MAC, remifentanil 0.2 - 0.25 µg/kg/min achieving a BIS of 40 - 50
During cardiopulmonary bypass: remifentanil 0.2 - 0.25 µg/kg/min, propofol 3 - 5 mg/kg/h achieving a BIS of 40 - 50

The treatment was carried out throughout the surgical procedure. The follow up was conducted 2, 4 and 6 days after surgery. The total length of hospital stay was recorded post hoc. No follow up after hospital discharge was performed.
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Sevoflurane, etomidate, sufentanil, pancuronium, remifentanil, propofol
Primary outcome measureCognitive function measured with the abbreviated mental-test (AMT), stroop-test, trail-making-test (TMT), word-lists (WL), and mood-assessment-tests on day 2, 4 and 6 after cardiac surgery
Secondary outcome measures1. Markers of myocardial, cerebral and renal damage (creatine kinase [CK]/creatine kinase myocardial bands [CK-MB], troponin, high sensitivity troponin [hsTroponin], N-terminal prohormone brain natriuretic peptide [NT-proBNP], neurone specific enolase [NSE], beta-subunit of S100 protein [S100beta], neutrophil gelatinase-associated lipocalin [NGAL], cystatin C [CysC], creatinine), measured 2, 4 and 6 days after surgery
2. Clinical outcome concerning brain, kidney and heart, recorded 6 days after surgery
Overall study start date01/09/2006
Completion date30/09/2008

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
Upper age limit85 Years
SexBoth
Target number of participantsn = 64 for each group, total N = 128
Key inclusion criteria1. Aged between 18 and 85 years, either sex
2. Elective or urgent cardiac surgery with cardiopulmonary bypass
3. American Society of Anaesthesiologists (ASA) grade I to IV
Key exclusion criteria1. Overt neurological diseases or dementia
2. Significant stenosis of the carotid arteries
3. Pregnancy
4. Disposition for malignant hyperthermia
5. Use of monoamine oxidase-inhibitors
6. Insufficient knowledge of the German language
7. Emergency indication
Date of first enrolment01/09/2006
Date of final enrolment30/09/2008

Locations

Countries of recruitment

  • Germany

Study participating centre

Department of Anesthesiology
Luebeck
23538
Germany

Sponsor information

University of Luebeck (Germany)
University/education

Ratzeburger Allee 160
Luebeck
D-23538
Germany

Website http://www.mu-luebeck.de/
ROR logo "ROR" https://ror.org/00t3r8h32

Funders

Funder type

University/education

University of Luebeck (Germany)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan