Automated Administration of Intravenous Compared With Inhalatory Anesthesia on the Occurrence of Postoperative Delirium

NCT ID: NCT03705728

Last Updated: 2018-10-18

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

UNKNOWN

Clinical Phase

NA

Total Enrollment

1000 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-05-30

Study Completion Date

2020-12-31

Brief Summary

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The intravenous administration of anesthetic agents by a controller automatically-guided by an index of cerebral activity (i.e. the bispectral index) decreases the incidence of postoperative delirium, compared with an inhalational anesthesia.

Detailed Description

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Scientific background Postoperative delirium (POD) is a common complication occurring in 5 to 50 % of elderly patients following an operation. Delirium is a serious complication leading to many medical as well as social and economical consequences. Several studies suggest that, both, the choice of anesthetic agents and the conduction of anesthesia might decrease the incidence of POD.

Objectives Study goal and primary aim: the intravenous administration of anesthetic agents by a controller automatically-guided by an index of cerebral activity (i.e. the bispectral index) decreases the incidence of POD, compared with an inhalational anesthesia.

The primary aim of the present study (i.e. incidence of POD) will be assessed by the Nursing Delirium Screening Scale (NDSS).

Secondary aims:

Secondary aim 1: Assessment of a potential difference on the incidence of PONV between the 2 groups of patients (i.e. intravenous vs. inhaled) by comparison of the number of episodes of nausea and vomiting and the need to treat this complications, between both groups.

Secondary aim 2: study if the difference of in the impairment of cognitive function might be correlated either with the type of drugs used to conduct anesthesia or with the control the index of cerebral activity (i.e. the BIS). The respective influences of the control of the index of cerebral activity (i.e. the BIS) and of the anesthetic drugs on the occurrence of postoperative cognitive dysfunctions (POCD) will be assessed by comparing cognitive function tests on matched groups on the percentage of time spent in different ranges of values of the cortical index Population of patients Patients of 60 years old or more, having given their written informed consent and who should undergo a surgical procedure of at least one hour.

Inclusion criterion

Patients will be included in the study if:

* They are 60 years old or older,
* They have given their written informed consent,
* They have to undergo a surgical procedure of one hour or longer. Non-inclusion criterion

Following patients will non be eligible for the current study:

* Pregnant women,
* Patients presenting a contra-indication to the monitoring of cerebral activity (i.e. intracranial surgery, neuroleptic or anti epileptic medications, pace maker),
* Patients presenting any allergy to propofol and or remifentanil,
* Patients under guardianship. Experimental protocol Information and inclusion of patients during the preoperative anesthetic assessment consultation First assessment of the NDSS at patient arrival in the operating room Randomization prior to the induction on the anesthesia Second NDSS just before patient leaving of PACU Recording of all PONV event as well as any administration of anti emetic drug

Number of subjects: 1000 Number of center: 4 Duration of the research: 36 months

Statistical Analysis: Sequential group analysis. The preoperative and postoperative NDSS test will be analyzed with an ANOVA for repeated-measure and multiple-comparison.

The main criterion will be analyzed with a Kaplan-Meier survival analysis on the global data and with a Cox regression that will take into account the qualitative factors represented by the type of anesthesia

Description of the Nursing Delirium Screening Scale (NDSS) that is a validated scale to assess POD at the bedside.

Five areas are assessed: disorientation, inappropriate behavior, inappropriate communication, illusions or hallucinations, and psychomotor retardation Description A screening tool designed for nurses to use at the end of their shift to identify patients with delirium, derived from the Confusion Rating Scale (CRS). Raters reference behaviors that they have witnessed in the patient or that the patient'snurse has witnessed during their shift to score the NDSS.

The NDSS can be rated one or more times daily.

Scoring information Each feature is scored on 0-2 based on severity, with 0=absent, 1=mild, and 2=severe.

Positive NDSS is score ≥ 2, maximum total score is 10.

Conditions

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Postoperative Delirium Elderly Patient General Anesthetic Drug Adverse Reaction

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

prospective randomized
Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Caregivers

Study Groups

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Intravenous group

Propofol \& remifentanil administration using the closed-loop controller with the "Easy-TIVA" platfrom.

Group Type EXPERIMENTAL

Propofol

Intervention Type DRUG

Propofol will be automatically administered according to the "EasyTIVA" device algorythm to maintain the BIS value within the 40-60 interval

Remifentanil automatic

Intervention Type DRUG

Remifentanil will be automatically administered according to the "EasyTIVA" device algorythm to maintain the BIS value within the 40-60 interval

volatile anesthesia group

Sevoflurane will be administered manually according to the BIS values. Remifentanil will be administered manually using a Target Controlled Infusion pump using the Minto model.

Group Type ACTIVE_COMPARATOR

Sevoflurane

Intervention Type DRUG

Sevoflurane will be manually administered to maintain the BIS value within the 40-60 interval

Remifentanil manual

Intervention Type DRUG

Remifentanil will be manually administered to maintain the BIS value within the 40-60 interval

Interventions

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Propofol

Propofol will be automatically administered according to the "EasyTIVA" device algorythm to maintain the BIS value within the 40-60 interval

Intervention Type DRUG

Sevoflurane

Sevoflurane will be manually administered to maintain the BIS value within the 40-60 interval

Intervention Type DRUG

Remifentanil automatic

Remifentanil will be automatically administered according to the "EasyTIVA" device algorythm to maintain the BIS value within the 40-60 interval

Intervention Type DRUG

Remifentanil manual

Remifentanil will be manually administered to maintain the BIS value within the 40-60 interval

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* age \> 59 year
* Informed written consent before enrolment;
* Procedure duration \> 60 min.
* Speaking French
* Possible contact one-month following surgery

Exclusion Criteria

* Contraindication of brain monitoring (intracranial surgery), pace-maker.
* Propofol or remifentanil allergy.
* Patients under guardianship
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Centre Clinical, France

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Centre Clinical

Soyaux, Charente, France

Site Status RECRUITING

Countries

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France

Central Contacts

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Xavier Paqueron, MD PhD

Role: CONTACT

+33545979562

Thierry Chazot, MD

Role: CONTACT

+33629820241

Facility Contacts

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Xavier Paqueron, MD PhD

Role: primary

+33545979562

Thierry Chazot, MD

Role: backup

+33629820241

References

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American Geriatrics Society Expert Panel on Postoperative Delirium in Older Adults. Postoperative delirium in older adults: best practice statement from the American Geriatrics Society. J Am Coll Surg. 2015 Feb;220(2):136-48.e1. doi: 10.1016/j.jamcollsurg.2014.10.019. Epub 2014 Nov 14. No abstract available.

Reference Type BACKGROUND
PMID: 25535170 (View on PubMed)

Robinson TN, Raeburn CD, Tran ZV, Angles EM, Brenner LA, Moss M. Postoperative delirium in the elderly: risk factors and outcomes. Ann Surg. 2009 Jan;249(1):173-8. doi: 10.1097/SLA.0b013e31818e4776.

Reference Type BACKGROUND
PMID: 19106695 (View on PubMed)

Saczynski JS, Marcantonio ER, Quach L, Fong TG, Gross A, Inouye SK, Jones RN. Cognitive trajectories after postoperative delirium. N Engl J Med. 2012 Jul 5;367(1):30-9. doi: 10.1056/NEJMoa1112923.

Reference Type BACKGROUND
PMID: 22762316 (View on PubMed)

Ely EW, Shintani A, Truman B, Speroff T, Gordon SM, Harrell FE Jr, Inouye SK, Bernard GR, Dittus RS. Delirium as a predictor of mortality in mechanically ventilated patients in the intensive care unit. JAMA. 2004 Apr 14;291(14):1753-62. doi: 10.1001/jama.291.14.1753.

Reference Type BACKGROUND
PMID: 15082703 (View on PubMed)

Chan MT, Cheng BC, Lee TM, Gin T; CODA Trial Group. BIS-guided anesthesia decreases postoperative delirium and cognitive decline. J Neurosurg Anesthesiol. 2013 Jan;25(1):33-42. doi: 10.1097/ANA.0b013e3182712fba.

Reference Type BACKGROUND
PMID: 23027226 (View on PubMed)

Radtke FM, Franck M, Lendner J, Kruger S, Wernecke KD, Spies CD. Monitoring depth of anaesthesia in a randomized trial decreases the rate of postoperative delirium but not postoperative cognitive dysfunction. Br J Anaesth. 2013 Jun;110 Suppl 1:i98-105. doi: 10.1093/bja/aet055. Epub 2013 Mar 28.

Reference Type BACKGROUND
PMID: 23539235 (View on PubMed)

Fritz BA, Kalarickal PL, Maybrier HR, Muench MR, Dearth D, Chen Y, Escallier KE, Ben Abdallah A, Lin N, Avidan MS. Intraoperative Electroencephalogram Suppression Predicts Postoperative Delirium. Anesth Analg. 2016 Jan;122(1):234-42. doi: 10.1213/ANE.0000000000000989.

Reference Type BACKGROUND
PMID: 26418126 (View on PubMed)

Liu N, Chazot T, Hamada S, Landais A, Boichut N, Dussaussoy C, Trillat B, Beydon L, Samain E, Sessler DI, Fischler M. Closed-loop coadministration of propofol and remifentanil guided by bispectral index: a randomized multicenter study. Anesth Analg. 2011 Mar;112(3):546-57. doi: 10.1213/ANE.0b013e318205680b. Epub 2011 Jan 13.

Reference Type BACKGROUND
PMID: 21233500 (View on PubMed)

Besch G, Liu N, Samain E, Pericard C, Boichut N, Mercier M, Chazot T, Pili-Floury S. Occurrence of and risk factors for electroencephalogram burst suppression during propofol-remifentanil anaesthesia. Br J Anaesth. 2011 Nov;107(5):749-56. doi: 10.1093/bja/aer235. Epub 2011 Aug 8.

Reference Type BACKGROUND
PMID: 21828343 (View on PubMed)

Liu N, Lory C, Assenzo V, Cocard V, Chazot T, Le Guen M, Sessler DI, Journois D, Fischler M. Feasibility of closed-loop co-administration of propofol and remifentanil guided by the bispectral index in obese patients: a prospective cohort comparison. Br J Anaesth. 2015 Apr;114(4):605-14. doi: 10.1093/bja/aeu401. Epub 2014 Dec 10.

Reference Type BACKGROUND
PMID: 25500680 (View on PubMed)

Orliaguet GA, Benabbes Lambert F, Chazot T, Glasman P, Fischler M, Liu N. Feasibility of closed-loop titration of propofol and remifentanil guided by the bispectral monitor in pediatric and adolescent patients: a prospective randomized study. Anesthesiology. 2015 Apr;122(4):759-67. doi: 10.1097/ALN.0000000000000577.

Reference Type BACKGROUND
PMID: 25545655 (View on PubMed)

Liu N, Chazot T, Trillat B, Michel-Cherqui M, Marandon JY, Law-Koune JD, Rives B, Fischler M; Foch Lung Transplant Group. Closed-loop control of consciousness during lung transplantation: an observational study. J Cardiothorac Vasc Anesth. 2008 Aug;22(4):611-5. doi: 10.1053/j.jvca.2008.04.022. Epub 2008 Jun 25.

Reference Type BACKGROUND
PMID: 18662642 (View on PubMed)

Other Identifiers

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AG-DPO

Identifier Type: -

Identifier Source: org_study_id

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