Evaluation of Surgical Stress Index (SSI) During Sevoflurane/Remifentanil Anesthesia

NCT ID: NCT00791791

Last Updated: 2012-06-15

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

NA

Total Enrollment

24 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-08-31

Study Completion Date

2008-11-30

Brief Summary

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The aim of the present prospective randomized study was to challenge the ability of SSI to detect painful stimulation during sevoflurane - remifentanil anesthesia.

Detailed Description

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General anesthesia can be considered as a combination of hypnosis, antinociception and immobility. Whereas monitoring of depth of hypnosis, and muscle relaxation can be regarded as accepted, determination of the nociception is based on clinical signs like somatic or autonomic responses.

Recently, the multivariate surgical stress index (SSI)has been demonstrated to correlate with surgical stress intensity. Thus, SSI might be a useful variable to adjust analgesic drug administration in individual patients.

We want to investigate whether SSI is able to indicate nociception following standardized noxious stimulation during balanced sevoflurane - remifentanil anesthesia.

Conditions

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Analgesia

Study Design

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Allocation Method

RANDOMIZED

Primary Study Purpose

DIAGNOSTIC

Study Groups

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1

increasing remifentanil administration

Group Type OTHER

standardized pain stimulus

Intervention Type PROCEDURE

a tetanic stimulus (30s, 50 Hz, 60mA) applied as standardized pain stimulus

2

decreasing remifentanil concentration

Group Type OTHER

standardized pain stimulus

Intervention Type PROCEDURE

a tetanic stimulus (30s, 50 Hz, 60mA) applied as standardized pain stimulus

Interventions

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standardized pain stimulus

a tetanic stimulus (30s, 50 Hz, 60mA) applied as standardized pain stimulus

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* age between 18 and 65 years
* ASA physical status 1-2
* elective surgery in general anesthesia of 1 to 2 hours
* written informed consent

Exclusion Criteria

* pregnancy
* history of cardiac arrhythmia
* presence of any neuromuscular or neurological disease
* use of CNS-active medication or abuse of alcohol or illicit drugs
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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University Hospital Schleswig-Holstein

OTHER

Sponsor Role lead

Responsible Party

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Berthold Bein

Prof. Dr. med.

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Matthias Gruenewald, MD

Role: PRINCIPAL_INVESTIGATOR

Department of Anaesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Campus Kiel

Berthold Bein, MD, DEAA

Role: STUDY_CHAIR

Department of Anaesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Campus Kiel

Locations

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Department of Anaesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Campus Kiel

Kiel, Schleswig-Holstein, Germany

Site Status

Countries

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Germany

References

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Huiku M, Uutela K, van Gils M, Korhonen I, Kymalainen M, Merilainen P, Paloheimo M, Rantanen M, Takala P, Viertio-Oja H, Yli-Hankala A. Assessment of surgical stress during general anaesthesia. Br J Anaesth. 2007 Apr;98(4):447-55. doi: 10.1093/bja/aem004. Epub 2007 Feb 28.

Reference Type BACKGROUND
PMID: 17329347 (View on PubMed)

Gruenewald M, Zhou J, Schloemerkemper N, Meybohm P, Weiler N, Tonner PH, Scholz J, Bein B. M-Entropy guidance vs standard practice during propofol-remifentanil anaesthesia: a randomised controlled trial. Anaesthesia. 2007 Dec;62(12):1224-9. doi: 10.1111/j.1365-2044.2007.05252.x.

Reference Type BACKGROUND
PMID: 17991257 (View on PubMed)

Rehberg B, Grunewald M, Baars J, Fuegener K, Urban BW, Kox WJ. Monitoring of immobility to noxious stimulation during sevoflurane anesthesia using the spinal H-reflex. Anesthesiology. 2004 Jan;100(1):44-50. doi: 10.1097/00000542-200401000-00011.

Reference Type BACKGROUND
PMID: 14695723 (View on PubMed)

Gruenewald M, Meybohm P, Ilies C, Hocker J, Hanss R, Scholz J, Bein B. Influence of different remifentanil concentrations on the performance of the surgical stress index to detect a standardized painful stimulus during sevoflurane anaesthesia. Br J Anaesth. 2009 Oct;103(4):586-93. doi: 10.1093/bja/aep206. Epub 2009 Jul 31.

Reference Type DERIVED
PMID: 19648155 (View on PubMed)

Other Identifiers

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SSI-134-1

Identifier Type: -

Identifier Source: org_study_id

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