Effect of Remifentanil on Postoperative Cognition Function in Patients Undergoing Major Abdominal Surgery

NCT ID: NCT01627873

Last Updated: 2012-06-26

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

622 participants

Study Classification

INTERVENTIONAL

Study Start Date

2009-08-31

Study Completion Date

2011-12-31

Brief Summary

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The purpose of this study is to investigate the effects of two different analgesic methods (Fentanyl vs Remifentanil) during major abdominal surgery on postoperative cognitive status of patients.

Detailed Description

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The purpose of this study is to investigate the effects of two different analgesic methods (Fentanyl vs Remifentanil) during major abdominal surgery on postoperative cognitive status of patients. In particular, whether there is a correlation between type of anesthesia and the appearance of postoperative cognitive disorder (POCD), including type of anesthesia and levels of pro and anti inflammatory cytokines and investigate whether there is an association between presence or absence of POCD and cytokines levels

Conditions

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Patients Undergoing Major Abdominal Surgery Postoperative Confusion

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

SCREENING

Blinding Strategy

TRIPLE

Participants Caregivers Investigators

Study Groups

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Fentanyl

In group B anesthesia will be induced by Propofol (2mg/kg), Fentanyl (2mcg/kg)and Cisatracurium (0.15mg/kg). Anesthesia will be maintained by Sevoflurane, oxygen (Fi=40%) and air and boluses of Fentanyl (50mcg). additional boluses of Cisatracurium (0.02mg/kg)will be administered as needed during surgery. At the beginning of closure of the peritoneum acetaminophen 1g will be administered.

Group Type ACTIVE_COMPARATOR

Fentanyl

Intervention Type DRUG

In group B anesthesia will be induced by Propofol (2mg/kg), Fentanyl (2mcg/kg)and Cisatracurium (0.15mg/kg). Anesthesia will be maintained by Sevoflurane, oxygen (Fi=40%) and air and boluses of Fentanyl (50mcg). additional boluses of Cisatracurium (0.02mg/kg)will be administered as needed during surgery. At the beginning of closure of the peritoneum acetaminophen 1g will be administered.

Remifentanyl

In group A induction of anesthesia will be performed with Propofol (2mg/kg), Cisatracurium (0.15mg/kg)and continous infusion of Remifentanil (0.15mcg/kg/min).Anesthesia will be maintained by Sevoflurane with oxygen (Fi=40%)and air, with a MAC value to maintain BIS between 40 and 60. Intraoperative analgesia will be obtained with Remifentanil 0.15-0.25mcg/kg/min. Additional boluses of Cisatracurium (0.02mcg/kg)will be administered as needed during surgery. At the beginning of closure of the peritoneum bolus of morphine (0.1mg/kg)and acetaminophen 1g will be administered. Propofol and remifentanil infusions will be interrupted at the end of wound closure.

Group Type EXPERIMENTAL

Remifentanil

Intervention Type DRUG

In group A induction of anesthesia will be performed with Propofol (2mg/kg), Cisatracurium (0.15mg/kg)and continous infusion of Remifentanil (0.15mcg/kg/min).Anesthesia will be maintained by Sevoflurane with oxygen (Fi=40%)and air, with a MAC value to maintain BIS between 40 and 60. Intraoperative analgesia will be obtained with Remifentanil 0.15-0.25mcg/kg/min. Additional boluses of Cisatracurium (0.02mcg/kg)will be administered as needed during surgery. At the beginning of closure of the peritoneum bolus of morphine (0.1mg/kg)and acetaminophen 1g will be administered. Propofol and remifentanil infusions will be interrupted at the end of wound closure.

Interventions

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Remifentanil

In group A induction of anesthesia will be performed with Propofol (2mg/kg), Cisatracurium (0.15mg/kg)and continous infusion of Remifentanil (0.15mcg/kg/min).Anesthesia will be maintained by Sevoflurane with oxygen (Fi=40%)and air, with a MAC value to maintain BIS between 40 and 60. Intraoperative analgesia will be obtained with Remifentanil 0.15-0.25mcg/kg/min. Additional boluses of Cisatracurium (0.02mcg/kg)will be administered as needed during surgery. At the beginning of closure of the peritoneum bolus of morphine (0.1mg/kg)and acetaminophen 1g will be administered. Propofol and remifentanil infusions will be interrupted at the end of wound closure.

Intervention Type DRUG

Fentanyl

In group B anesthesia will be induced by Propofol (2mg/kg), Fentanyl (2mcg/kg)and Cisatracurium (0.15mg/kg). Anesthesia will be maintained by Sevoflurane, oxygen (Fi=40%) and air and boluses of Fentanyl (50mcg). additional boluses of Cisatracurium (0.02mg/kg)will be administered as needed during surgery. At the beginning of closure of the peritoneum acetaminophen 1g will be administered.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Age over 60 years
* Patients undergoing major abdominal surgery, in General Anesthesia
* ASA class status I-III

Exclusion Criteria

* History of allergy to drugs used in the study
* Mini-Mental State Examination (MMSE) value \< 26
* Expected duration of anesthesia less than 1 hour and more than 4 hours
* Presence of a cognitive disorder severity of overt such as to prevent collaboration of the patient
* Presence of severe electrolyte disturbances or not controlled bool glucose levels
* History of pain or cerebral vascular disease on the basis of significant carotid or cerebral artery stenosis, to be verified by scanning eco-color doppler
* Habitual use of tranquillizers or other drugs affecting the central nervous system
* Difficulties in the management of the airways, such as to make the necessary changes in anesthesia technique
* Severe hypotension or hypertension or other vascular disorders, particularly thrombotic events or bleeding during surgery or in the perioperative period
* Bleeding that requires blood transfusion
* Medication needs higher or lower than that indicated in the protocol to ensure the depth of hypnosis, indicated by values of BIS targets
* Refusal by the patient
Minimum Eligible Age

60 Years

Maximum Eligible Age

90 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Catholic University of the Sacred Heart

OTHER

Sponsor Role lead

Responsible Party

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Germano De Cosmo

Germano De Cosmo

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Germano De Cosmo, Associated Professor

Role: STUDY_DIRECTOR

Catholic University of the Sacred Heart - Rome

Locations

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Policlinico Universitario "A.Gemelli"

Rome, Rome, Italy

Site Status

Countries

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Italy

References

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Rasmussen LS, Moller JT. Central nervous system dysfunction after anesthesia in the geriatric patient. Anesthesiol Clin North Am. 2000 Mar;18(1):59-70, vi. doi: 10.1016/s0889-8537(05)70149-8.

Reference Type BACKGROUND
PMID: 10935000 (View on PubMed)

Dodds C, Allison J. Postoperative cognitive deficit in the elderly surgical patient. Br J Anaesth. 1998 Sep;81(3):449-62. doi: 10.1093/bja/81.3.449. No abstract available.

Reference Type BACKGROUND
PMID: 9861139 (View on PubMed)

Rasmussen LS. Perioperative cognitive decline: the extent of the problem. Acta Anaesthesiol Belg. 1999;50(4):199-204. No abstract available.

Reference Type BACKGROUND
PMID: 10603995 (View on PubMed)

Parikh SS, Chung F. Postoperative delirium in the elderly. Anesth Analg. 1995 Jun;80(6):1223-32. doi: 10.1097/00000539-199506000-00027.

Reference Type BACKGROUND
PMID: 7762856 (View on PubMed)

Moller JT. Cerebral dysfunction after anaesthesia. Acta Anaesthesiol Scand Suppl. 1997;110:13-6. doi: 10.1111/j.1399-6576.1997.tb05484.x. No abstract available.

Reference Type BACKGROUND
PMID: 9248516 (View on PubMed)

Diegeler A, Hirsch R, Schneider F, Schilling LO, Falk V, Rauch T, Mohr FW. Neuromonitoring and neurocognitive outcome in off-pump versus conventional coronary bypass operation. Ann Thorac Surg. 2000 Apr;69(4):1162-6. doi: 10.1016/s0003-4975(99)01574-x.

Reference Type BACKGROUND
PMID: 10800812 (View on PubMed)

Wilson CJ, Finch CE, Cohen HJ. Cytokines and cognition--the case for a head-to-toe inflammatory paradigm. J Am Geriatr Soc. 2002 Dec;50(12):2041-56. doi: 10.1046/j.1532-5415.2002.50619.x.

Reference Type BACKGROUND
PMID: 12473019 (View on PubMed)

Wan Y, Xu J, Ma D, Zeng Y, Cibelli M, Maze M. Postoperative impairment of cognitive function in rats: a possible role for cytokine-mediated inflammation in the hippocampus. Anesthesiology. 2007 Mar;106(3):436-43. doi: 10.1097/00000542-200703000-00007.

Reference Type BACKGROUND
PMID: 17325501 (View on PubMed)

Buvanendran A, Kroin JS, Berger RA, Hallab NJ, Saha C, Negrescu C, Moric M, Caicedo MS, Tuman KJ. Upregulation of prostaglandin E2 and interleukins in the central nervous system and peripheral tissue during and after surgery in humans. Anesthesiology. 2006 Mar;104(3):403-10. doi: 10.1097/00000542-200603000-00005.

Reference Type BACKGROUND
PMID: 16508385 (View on PubMed)

Winterhalter M, Brandl K, Rahe-Meyer N, Osthaus A, Hecker H, Hagl C, Adams HA, Piepenbrock S. Endocrine stress response and inflammatory activation during CABG surgery. A randomized trial comparing remifentanil infusion to intermittent fentanyl. Eur J Anaesthesiol. 2008 Apr;25(4):326-35. doi: 10.1017/S0265021507003043. Epub 2007 Nov 16.

Reference Type BACKGROUND
PMID: 18005471 (View on PubMed)

Moller JT, Cluitmans P, Rasmussen LS, Houx P, Rasmussen H, Canet J, Rabbitt P, Jolles J, Larsen K, Hanning CD, Langeron O, Johnson T, Lauven PM, Kristensen PA, Biedler A, van Beem H, Fraidakis O, Silverstein JH, Beneken JE, Gravenstein JS. Long-term postoperative cognitive dysfunction in the elderly ISPOCD1 study. ISPOCD investigators. International Study of Post-Operative Cognitive Dysfunction. Lancet. 1998 Mar 21;351(9106):857-61. doi: 10.1016/s0140-6736(97)07382-0.

Reference Type BACKGROUND
PMID: 9525362 (View on PubMed)

Rohan D, Buggy DJ, Crowley S, Ling FK, Gallagher H, Regan C, Moriarty DC. Increased incidence of postoperative cognitive dysfunction 24 hr after minor surgery in the elderly. Can J Anaesth. 2005 Feb;52(2):137-42. doi: 10.1007/BF03027718.

Reference Type BACKGROUND
PMID: 15684252 (View on PubMed)

Collie A, Darby DG, Falleti MG, Silbert BS, Maruff P. Determining the extent of cognitive change after coronary surgery: a review of statistical procedures. Ann Thorac Surg. 2002 Jun;73(6):2005-11. doi: 10.1016/s0003-4975(01)03375-6.

Reference Type BACKGROUND
PMID: 12078822 (View on PubMed)

Other Identifiers

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A/575/2009

Identifier Type: -

Identifier Source: org_study_id

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