NCT01250418

Brief Summary

The study question: Does the SNAP-Index (SI) correlates better with the OASS than the BIS Monitor during sedation with ketamine? The study hypothesis: Since the SNAP II monitor seems to be more responsive during emergence of anesthesia, it will have a better correlation with the OASS than the BIS monitor with the use of ketamine.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
25

participants targeted

Target at below P25 for not_applicable pain

Timeline
Completed

Started Aug 2010

Typical duration for not_applicable pain

Geographic Reach
1 country

1 active site

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2010

Completed
2 days until next milestone

First Submitted

Initial submission to the registry

August 3, 2010

Completed
4 months until next milestone

First Posted

Study publicly available on registry

November 30, 2010

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2012

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2012

Completed
2.3 years until next milestone

Results Posted

Study results publicly available

August 28, 2014

Completed
Last Updated

August 28, 2014

Status Verified

August 1, 2014

Enrollment Period

1.8 years

First QC Date

August 3, 2010

Results QC Date

July 23, 2014

Last Update Submit

August 18, 2014

Conditions

Keywords

Bispectral IndexKetamine

Outcome Measures

Primary Outcomes (1)

  • TcCO2 Above 50

    % Time Tosca Monitor (TcCO2) above 50. A TcCo2 above 50 is indicative of hypoventilation.

    Intraoperative, an average of about 1 and 1/2 hours.

Study Arms (2)

Ketamine Group

ACTIVE COMPARATOR

ketamine bolus of 0.25mg/kg followed by an infusion set at 1.5 mcg /kg/min.

Drug: Ketamine group

No ketamine

NO INTERVENTION

No ketamine added to anesthesia regimen

Interventions

ketamine bolus of 0.25mg/kg followed by an infusion set at 1.5 mcg /kg/min.

Ketamine Group

Eligibility Criteria

Age18 Years - 64 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Age : 18-64 years
  • ASA : I-III
  • Procedure : Breast or gynecological surgery
  • Anesthesia :Monitored anesthesia care

You may not qualify if:

  • Pregnancy
  • Breast Feeding
  • Body Mass Index \>35kg/m2
  • Drug or Alcohol abuse
  • Use anticonvulsants
  • History of CVA
  • Drop-out criteria:
  • Patient or surgeon request
  • Conversion to general anesthesia
  • Inability to obtain data from both monitors

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Northwestern Memorial Hospital

Chicago, Illinois, 60611, United States

Location

Related Publications (8)

  • Chernik DA, Gillings D, Laine H, Hendler J, Silver JM, Davidson AB, Schwam EM, Siegel JL. Validity and reliability of the Observer's Assessment of Alertness/Sedation Scale: study with intravenous midazolam. J Clin Psychopharmacol. 1990 Aug;10(4):244-51.

    PMID: 2286697BACKGROUND
  • Sigl JC, Chamoun NG. An introduction to bispectral analysis for the electroencephalogram. J Clin Monit. 1994 Nov;10(6):392-404. doi: 10.1007/BF01618421.

    PMID: 7836975BACKGROUND
  • Glass PS, Bloom M, Kearse L, Rosow C, Sebel P, Manberg P. Bispectral analysis measures sedation and memory effects of propofol, midazolam, isoflurane, and alfentanil in healthy volunteers. Anesthesiology. 1997 Apr;86(4):836-47. doi: 10.1097/00000542-199704000-00014.

    PMID: 9105228BACKGROUND
  • Iselin-Chaves IA, Flaishon R, Sebel PS, Howell S, Gan TJ, Sigl J, Ginsberg B, Glass PS. The effect of the interaction of propofol and alfentanil on recall, loss of consciousness, and the Bispectral Index. Anesth Analg. 1998 Oct;87(4):949-55. doi: 10.1097/00000539-199810000-00038.

    PMID: 9768800BACKGROUND
  • Song D, Joshi GP, White PF. Titration of volatile anesthetics using bispectral index facilitates recovery after ambulatory anesthesia. Anesthesiology. 1997 Oct;87(4):842-8. doi: 10.1097/00000542-199710000-00018.

    PMID: 9357886BACKGROUND
  • Sebel PS, Lang E, Rampil IJ, White PF, Cork R, Jopling M, Smith NT, Glass PS, Manberg P. A multicenter study of bispectral electroencephalogram analysis for monitoring anesthetic effect. Anesth Analg. 1997 Apr;84(4):891-9. doi: 10.1097/00000539-199704000-00035.

    PMID: 9085977BACKGROUND
  • Dressler O, Schneider G, Stockmanns G, Kochs EF. Awareness and the EEG power spectrum: analysis of frequencies. Br J Anaesth. 2004 Dec;93(6):806-9. doi: 10.1093/bja/aeh270. Epub 2004 Sep 17.

    PMID: 15377585BACKGROUND
  • Wong CA, Fragen RJ, Fitzgerald P, McCarthy RJ. A comparison of the SNAP II and BIS XP indices during sevoflurane and nitrous oxide anaesthesia at 1 and 1.5 MAC and at awakening. Br J Anaesth. 2006 Aug;97(2):181-6. doi: 10.1093/bja/ael131. Epub 2006 May 23.

    PMID: 16720676BACKGROUND

MeSH Terms

Conditions

Pain

Condition Hierarchy (Ancestors)

Neurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Results Point of Contact

Title
Gildasio De Oliveira MD
Organization
Northwestern University

Study Officials

  • Gildasio DeOliveira, MD

    Northwestern University

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Gildasio De Oliveira, M.D. Principal Investigator

Study Record Dates

First Submitted

August 3, 2010

First Posted

November 30, 2010

Study Start

August 1, 2010

Primary Completion

May 1, 2012

Study Completion

May 1, 2012

Last Updated

August 28, 2014

Results First Posted

August 28, 2014

Record last verified: 2014-08

Locations