Seattle, Washington 98195

  • Monitoring, Intraoperative


This study evaluates effects of the analgesic ketamine on ANI measurements (Anti Nociceptive Index)

Study summary:

Researchers at the University of Washington are doing this study to find out if a commonly used anesthetic affects patients Analgesia Nociception Index (level of pain relief) during abdominal hysterectomy under general anesthesia. The investigators will administer routine anesthesia care including Ketamine, a commonly used anesthetic, during the patients surgery. During the patients surgery, the investigators will monitor the patients level of pain relief using the PhysioDoloris monitor, which monitors the routinely used EKG monitor. Though not yet FDA approved, the PhysioDoloris is completely non-invasive and collects data from the EKG monitor.


Inclusion Criteria: - ASA status I, II, or III - 18 years or older - Receiving GA with uncomplicated routine intubation - Ability to provide informed consent - English-speaking Exclusion Criteria: - Presence of coronary artery disease, cardiac arrhythmias, or ketamine allergy - Patient refusal - History of substance abuse - Patients taking psychotropic and/or opiate drugs - Having a history of psychiatric diseases or psychological problems



Primary Contact:

Principal Investigator
Laurent Bollag, MD
University of Washington

Backup Contact:


Location Contact:

Seattle, Washington 98195
United States

There is no listed contact information for this specific location.

Site Status: N/A

Data Source:

Date Processed: June 12, 2021

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