Predictors of Postoperative Pain
|Study Design:||Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Supportive Care
|Official Title:||Predictors of Postoperative Pain Following Abdominal Hysterectomy|
- pain scores from IV insertion [ Time Frame: 15 minutes prior to induction ]
- Anxiety [ Time Frame: 24 to 48 hours before surgery ]
- Pain from thermal stimuli [ Time Frame: 24 to 48 hours before surgery ]Pain from thermal stimuli will be measure at two sites: site of surgery and at the forearm.
- Suprathreshold Thermal pain intensity [ Time Frame: 24 to 48 hours before surgery ]Suprathreshold Thermal pain intensity will be recorded at two site: site of surgery and forearm
- suprathreshold thermal unpleasantness intensity [ Time Frame: 24 to 48 hours before surgery ]
- Expectation about pain [ Time Frame: 24 to 48 hours before surgery ]
- postoperative pain [ Time Frame: within 1-2 hours after arrival to recovery room; and at 12 hours, 24 hours, 36 hours and 48 hours after surgery ]Postoperative pain will be measured upon arrival to the Post Anesthesia Care Unit (PACU)before morphine consumption and after morphine consumption, at rest and at movement.
- Morphine consumption [ Time Frame: within 1-2 hours after arrival to recovery room; and at 12 hours, 24 hours, 36 hours and 48 hours after surgery ]
|Study Start Date:||July 2012|
|Study Completion Date:||March 2014|
|Primary Completion Date:||March 2014 (Final data collection date for primary outcome measure)|
|No Intervention: Patients undergoing hysterectomy||
Device: Thermal Sensory Analyzer (Senselab)
Thermal stimuli will be administered to the ventral surface of the dominant forearm and then to the lower abdomen (surgical site)using the Thermal Sensory Analyser. Each thermal testing trial will be separated by approximately 2 min and at a separate site.
To measure the thermal pain threshold temperature, The thermode will be applied to the ventral surface of the dominant forearm and the temperature will be increased at 1°C/s from 35 to 50°C.
To measure the Suprathreshold Thermal Pain Intensity and unpleasantness, Stimulus responses for noxious heat stimuli will be performed by applying phasic heat stimuli at 8 different temperatures (35, 43, 44, 45, 46, 47, 48, and 49°C).
Other Name: Modular Sensory Analyzer, Senselab
Please refer to this study by its ClinicalTrials.gov identifier: NCT01449318
|American Unversity of Beirut Medical Center|
|Principal Investigator:||Marie T Aouad, MD||American University of Beirut Medical Center|