Long-Term Cognitive Decline After Coronary Artery Bypass Grafting: is Off-Pump Surgery Beneficial?
|First Received Date ICMJE||September 13, 2005|
|Last Updated Date||December 3, 2007|
|Start Date ICMJE||March 1998|
|Primary Completion Date||Not Provided|
|Current Primary Outcome Measures ICMJE
||cognitive decline 5 year after the index treatment|
|Original Primary Outcome Measures ICMJE||Same as current|
|Change History||Complete list of historical versions of study NCT00189215 on ClinicalTrials.gov Archive Site|
|Current Secondary Outcome Measures ICMJE
|Original Secondary Outcome Measures ICMJE||Same as current|
|Current Other Outcome Measures ICMJE||Not Provided|
|Original Other Outcome Measures ICMJE||Not Provided|
|Brief Title ICMJE||Long-Term Cognitive Decline After Coronary Artery Bypass Grafting: is Off-Pump Surgery Beneficial?|
|Official Title ICMJE||Long-Term Cognitive Decline After Coronary Artery Bypass Grafting: is Off-Pump Surgery Beneficial?|
Coronary artery bypass surgery is associated with postoperative cognitive decline, which has largely been attributed to the use of the heart lung machine. We hypothesized that long-term cognitive outcome may improve by avoiding the heart lung machine. The objective of the present study is to compare the effect of coronary bypass surgery with and without heart lung machine on cognitive and clinical outcome, five years after surgery.
Coronary artery bypass surgery is associated with postoperative cognitive decline, which has largely been attributed to the use of cardiopulmonary bypass (CPB). A large recent study by Newman et al demonstrated that the incidence of cognitive decline was 24% at six months after surgery, but it increased to 42% at five years. In the recently conducted Octopus Randomized Trial, cognitive decline at three months after surgery was present in 29% of the patients operated with CPB. In the patients operated without CPB, the incidence was 21%, i.e. only slightly better.
Improvement of cognitive outcome by avoiding cardiopulmonary bypass will become more apparent five years after surgery, compared to three months after surgery.
The objective of the present study is to compare the effect of coronary bypass surgery with and without cardiopulmonary bypass on cognitive and clinical outcome, five years after surgery.
The 281 participants of the Octopus Study, who were operated on between March 1998 and August 2000 and randomized to off-pump or on-pump coronary bypass surgery, will be invited for an additional assessment of their cognitive and clinical status and quality of life, five years after surgery. Patients will undergo a battery of ten neuropsychologic tests to determine their cognitive status. Clinical status will be assessed by an interview. Questionnaires will be used to measure quality of life.
|Study Type ICMJE||Interventional|
|Study Phase||Phase 4|
|Study Design ICMJE||Allocation: Randomized
Endpoint Classification: Safety Study
Intervention Model: Parallel Assignment
Masking: Single Blind
Primary Purpose: Prevention
|Intervention ICMJE||Device: cardiac stabilizer instead of cardiopulmonary bypass|
|Study Arm (s)||Not Provided|
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
|Recruitment Status ICMJE||Completed|
|Completion Date||December 2005|
|Primary Completion Date||Not Provided|
|Eligibility Criteria ICMJE||
|Ages||18 Years and older|
|Accepts Healthy Volunteers||Not Provided|
|Contacts ICMJE||Contact information is only displayed when the study is recruiting subjects|
|Listed Location Countries ICMJE||Netherlands|
|Removed Location Countries|
|NCT Number ICMJE||NCT00189215|
|Other Study ID Numbers ICMJE||WOM protocol 98/009-O|
|Has Data Monitoring Committee||Not Provided|
|Responsible Party||Not Provided|
|Study Sponsor ICMJE||UMC Utrecht|
|Collaborators ICMJE||International Anesthesia Research Society (IARS)|
|Information Provided By||UMC Utrecht|
|Verification Date||March 2005|
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP