Surgical Pleth Index (SPI) Guided Analgesia During Sevoflurane Anesthesia

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: NCT01525537
Recruitment Status : Completed
First Posted : February 3, 2012
Last Update Posted : June 15, 2012
Information provided by (Responsible Party):
Berthold Bein, University of Schleswig-Holstein

Brief Summary:
The aim of the present study was to compare SPI guided analgesia with standard clinical practise during general anesthesia using a balanced setting of sevoflurane and sufentanil anesthesia. It was to be tested whether SPI guided analgesia leads to more cardiovascular stability, less use of analgetics and shorter recovery from anesthesia.

Condition or disease Intervention/treatment Phase
Balanced Anesthesia Drug: administration of sufentanil Drug: sufentanil Not Applicable

Detailed Description:

General anesthesia can be considered as a combination of hypnosis, antinociception, and immobility. The monitoring of hypnosis and immobility has been established in clinical practise, however for the evaluation of antinociception a valid monitoring is missing.

The Surgical Pleth Index (SPI; former named Surgical Stress Index-SSI) is a multivariate index derived non invasively from finger plethysmographic signal. It has been demonstrated to correlate with surgical stress intensity. In the setting of total intravenous anesthesia TIVA our group could show beneficial effects of SPI guided analgesia in terms of remifentanil consumption, hemodynamic stability and incidence of unwanted events.

Therefore, we wanted examine whether these beneficial effects of SPI guided anesthesia can be transferred to a setting of balanced anesthesia using a volatile anesthetic sevoflurane and the opioid sufentanil.

The following hypotheses have been made:

  1. SPI guided analgesia will result in less sufentanil consumption
  2. SPI guided analgesia will result in more hemodynamic stability and faster recovery of the patient after anesthesia, and less opioid use in post operative period

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 82 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Participant)
Primary Purpose: Treatment
Official Title: Comparison of Surgical Pleth Index Guided Analgesia With Standard Clinical Practise During Balanced Anesthesia
Study Start Date : March 2009
Actual Primary Completion Date : February 2010
Actual Study Completion Date : October 2011

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Anesthesia
U.S. FDA Resources

Arm Intervention/treatment
Experimental: SPI guided arm
sufentanil was adjusted to SPI level
Drug: administration of sufentanil
10 microgram sufentanil were given when SPI above 50 for more then 20 sec
Active Comparator: Standard practise
Sufentanil was given at standard practise
Drug: sufentanil
sufentanil was given at standard practise

Primary Outcome Measures :
  1. Sufentanil consumption [ Time Frame: during induction and end of anesthesia (1-3 hours) ]
    We will measure the sufentanil consumption during beginning of anesthesia and extubation in microgram per hour.

Secondary Outcome Measures :
  1. hemodynamic stability [ Time Frame: from beginning of anesthesia until discharge to ward (1day) ]
    Hemodynamic stability is measured as number of the following events during anesthesia: hypotension, hypertension, tachykardia, bradykardia.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Ages Eligible for Study:   18 Years to 65 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • age between 18 - 65 years
  • ASA physical status I or II
  • elective surgery under general anesthesia of 1-2 hours
  • written informed consent

Exclusion Criteria:

  • pregnancy
  • history of cardiac arrhythmia
  • presence of any neuromuscular opr neurologic disease
  • use of CNS active medication or alcohol/illicit drug abuse -

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): NCT01525537

University Hospital Kiel, Dept. of Anesthesiology and Intensive Care Med.
Kiel, Germany, 24105
Sponsors and Collaborators
University of Schleswig-Holstein
Study Chair: Berthold Bein, MD, PhD University of Schleswig-Holstein
Principal Investigator: Matthias Gruenewald, MD University of Schleswig-Holstein

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Berthold Bein, Prof. Dr. med., University of Schleswig-Holstein Identifier: NCT01525537     History of Changes
Other Study ID Numbers: SPI-134-2
First Posted: February 3, 2012    Key Record Dates
Last Update Posted: June 15, 2012
Last Verified: June 2012

Keywords provided by Berthold Bein, University of Schleswig-Holstein:
Anesthesia General
Anesthetics Inhalation
Diagnostic techniques and procedures

Additional relevant MeSH terms:
Central Nervous System Depressants
Physiological Effects of Drugs
Analgesics, Opioid
Sensory System Agents
Peripheral Nervous System Agents
Adjuvants, Anesthesia
Anesthetics, Intravenous
Anesthetics, General