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Updated: Jul 19, 2026

Multi-Modal Signals for Analyzing Pain Responses to Thermal and Electrical Stimuli
Published on: April 5, 2019
Evaluation of a behavioral assessment tool for the individual unable to self-report pain
Rob W Hutchison1, William F Tucker, Sunghyun Kim
1Presbyterian Hospital of Dallas, 8200 Walnut Hill Lane, Pharmacy Department, Dallas, TX 75231, USA. robhutchison@texashealth.org
Abstract:
Assessment of pain intensity using a standard self-reported pain score is standard practice in most institutions. These instruments require the cognitive ability to process the pain intensity into a numeric or descriptive value. Many institutions are considering adopting an assessment tool for cognitive impairment. The purpose of this study is to evaluate a clinician-administered assessment tool, PAINAD, in patients with cognitive impairment. Opioid consumption and frequency of documented unknown pain were collected in 2 cognitive impaired groups. In the control group, a self-reporting pain intensity tool was used, and in a second group, the PAINAD was used. Opioid use was significantly higher (P = .003) and the rates of reported unknown pain were significantly lower (P < .01) in the group using the PAINAD instrument compared to the control group of patients with cognitive impairment. There were no noted differences in opioid-induced adverse reactions in either group.

