Acute Pain Assessment Using Facial Expression Analysis

Completed

• Conditions: Acute Pre and Post Operative Pain
• Interventions: Other: video taken

• Registration Number: NCT03957967
• Lead Sponsor: Centre Hospitalier Universitaire de Nice

Brief Summary

Managing pain, which affects 20-50% of the population, is a major issue in daily clinical practice. Evaluation of pain intensity is essential to adapt treatment but as it mainly relies on self-report, this assessment is difficult or impossible in non-communicating patients. In these cases, pain can only be evaluated by medical staff by the observation of pain-related characteristics like facial expression of pain (FEP). However, recognition of FEP is subjective, time-consuming and subject to multiple biases frequently leading to underestimation of pain and consequently under-treatment. Some of these biases could be solved by the use of facial recognition technology, allowing objective, automated and time-saving pain assessment. DEF-I aims to address technical issues and achieve the development of facial expression recognition digital tool able to evaluate severe acute pain in clinical practice, with high validity and utility by improving the quality of the images to be analyzed, by studying larger samples of patients, data and images, in order to correlate more efficiently the pain intensity felt by a patient with the expression of his face. The main objective of this study is to verify whether it is possible to quantitatively correlate the intensity of acute postoperative pain felt by a patient with his facial expression. The secondary objective is to define a reliable computer algorithm that qualitatively correlates the type of acute postoperative pain experienced by a patient with his facial expression.

Detailed Description

Not available

Basic Information
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Recruitment & Eligibility
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Study & Design
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Trial Locations

Study Timeline

• Status Verified: 2019-05
• Study First Submitted: 2019-05-06
• Study First Submitted QC: 2019-05-20
• Study First Posted: 2019-05-21
• Study Start: 2019-05-31
• Primary Completion: 2019-05-31
• Study Completion: 2019-11-30
• Last Update Submitted: 2020-03-12
• Last Update Posted: 2020-03-16

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 1000

Inclusion Criteria

• Any adult patient undergoing surgery in our institution during the study duration,
• able to express pain intensity on NRS

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Exclusion Criteria

• patient to be operated on in the area of the face or eye
• Patient with altered facial morphology related to a dressing, suture, wound, trauma or oedema on the face
• patient not compliant or unable to clearly express pain

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Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
acute pain	video taken	Patient with acute pain

Primary Outcome Measures

Name	Time	Method
measure of pain	t1=after surgery	numerical rating scale (NRS) is a psychometric response scale which can be used in questionnaires. It is a measurement instrument for subjective characteristics or attitudes that cannot be directly measured. When responding to a NRS item, respondents specify their level of agreement to a statement by indicating a position along a continuous line between two end-points. The range is 0=no pain to 10=acute pain

Secondary Outcome Measures

Name	Time	Method
facial expression	t1=after surgery	facial photographs extracted from a hort 10 seconds video

Trial Locations

Locations (1)

Hôpital Pasteur; 🇫🇷 Nice, France