A Study to Assess Indeics of SNAP vs VISTA on Surgical Patients Undergoing General Anesthesia (Precision GA)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00829803
Recruitment Status : Unknown
Verified January 2009 by Stryker Instruments.
Recruitment status was:  Recruiting
First Posted : January 27, 2009
Last Update Posted : June 23, 2010
Information provided by:
Stryker Instruments

Brief Summary:
Establish the range of index values for the SNAP II corresponding to each anesthetic state studied.

Condition or disease Intervention/treatment Phase
Anesthesia Device: SNAP monitor; Bispectral Index Monitor (BIS Monitor) Phase 4

Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 40 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Care Provider)
Primary Purpose: Supportive Care
Official Title: A Prospective Randomized Double Blinded Study Assessing Indeics of SNAP vs VISTA on Surgical Patients Undergoing General Anesthesia
Study Start Date : February 2009
Estimated Primary Completion Date : July 2010
Estimated Study Completion Date : December 2010

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Anesthesia

Arm Intervention/treatment
Experimental: SNAP Monitor EEG signals Device: SNAP monitor; Bispectral Index Monitor (BIS Monitor)
Intended to monitor the state of the brain by data acquisition of EEG signals.

Active Comparator: BIS Monitor EEG signals (VISTA) Device: SNAP monitor; Bispectral Index Monitor (BIS Monitor)
Intended to monitor the state of the brain by data acquisition of EEG signals.

Primary Outcome Measures :
  1. SNAP Index values corresponding to anesthetic states: Pre-induction (baseline), loss of response, anesthesia maintenance, first purposeful response after anesthesia is discontinued, at extubation or LMA removal [ Time Frame: 3 months ]

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 65 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Patients scheduled for surgery requiring general anesthesia
  • Open or laparoscopic procedures
  • Cases anticipated to be less than 4 hours in duration
  • In-patient and out-patient subjects
  • Patients and cases manageable with LMA. Cases manageable with ET tube are also allowed with the condition that only a minimal dose of short-acting NMBA is used at intubation and not throughout the case.
  • Local analgesia at incision site is permitted.
  • Males and Females between 18 and 65 years of age, inclusive.
  • BMI<40 and body mass>41 kg
  • Patients who have signed the informed consent.
  • Able to receive Informed Consent through subjects native language providing that a native language speaker delivers the Informed Consent.
  • ASA Stratification I - III

Exclusion Criteria:

  • Any subject failing to fulfill all inclusion criteria
  • ASA stratification >= IV
  • Subject is a prisoner.
  • Patients presenting with evidence of recent trauma, active infection, neurological disorder, seizure disorder, dementia or have been diagnosed with Alzheimer's disease
  • Subjects with cardiac or gastric pace makers
  • Pregnant women as identified by institutional SOP for female of child-bearing age
  • Patients that will not sign an informed consent form
  • Patients with previous adverse incidents with anesthesia, including awareness
  • Patients undergoing surgery on the head or neck
  • Subjects currently taking psychoactive medications as part of routine medical care within the past 7 days
  • Subjects that require and/or receive any of the psychotherapeutic agents or psychotropic drugs below, in the treatment of mental illness, and have taken such treatment within the past 7 days.
  • Benzodiazepines
  • MAOI inhibitors
  • Selective serotonin reuptake inhibitors (SSRIs)
  • Tricyclic antidepressants
  • Lithium
  • Neuroleptic agents
  • Central nervous system stimulants.
  • Subjects with a known history of alcohol or narcotic abuse within 6 months prior to screening OR subjects reporting narcotic or narcotic medication use with 24 hours prior to surgery.
  • Subjects requiring neurophysiologic monitoring
  • Subjects requiring TIVA
  • Subjects requiring prolonged use of NMBA beyond dose required for intubation
  • Subjects requiring ketamine
  • Subjects receiving spinal, epidural, or other nerve blocks
  • Subjects having any condition or severe illness that to the Principal Investigator's discretion would interfere with study assessments OR other severe acute or chronic medical or psychiatric condition that may interfere with the interpretation of study results and, in the judgment of the investigator, and would make the subject inappropriate for entry into this study.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00829803

United States, Florida
University Of Miami Recruiting
Miami, Florida, United States, 33101-6370
Contact: Keith Candiotti, MD    305-585-5332   
Principal Investigator: Keith Candiotti, MD         
United States, Illinois
Northwestern University Feinberg School of Medicine Recruiting
Chicago, Illinois, United States, 60611
Contact: Robert McCarthy, PharmD    312-926-9015   
Principal Investigator: Robert McCarthy, Pharm. D.         
United States, Michigan
Beaumont Hospital Recruiting
Royal Oak, Michigan, United States, 48084
Contact: Roy Soto, MD    248-458-0400   
Principal Investigator: Roy Soto, MD         
United States, Ohio
The Ohio State University Medical Center Recruiting
Columbus, Ohio, United States, 43210
Contact: Erika G Puente, MD    614-293-8487   
Principal Investigator: Erika G Puente, MD         
Sponsors and Collaborators
Stryker Instruments

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Stryker Instruments Identifier: NCT00829803     History of Changes
Other Study ID Numbers: SIS-SNAP-2008-01US
First Posted: January 27, 2009    Key Record Dates
Last Update Posted: June 23, 2010
Last Verified: January 2009

Keywords provided by Stryker Instruments:
To acquire developmental data to prospectively support SNAP
II index ranges at the studied anesthetic states.