NCT04011189

Brief Summary

The study team has developed an algorithm for pain assessment based on automated video facial and body pose analysis. The investigators aim to assess the sensitivity of this algorithm in detecting pain in post-surgical patients and refine the algorithm to increase the sensitivity of pain detection in patients.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
370

participants targeted

Target at P75+ for not_applicable

Timeline
8mo left

Started Aug 2019

Longer than P75 for not_applicable

Geographic Reach
1 country

2 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress91%
Aug 2019Dec 2026

First Submitted

Initial submission to the registry

July 4, 2019

Completed
4 days until next milestone

First Posted

Study publicly available on registry

July 8, 2019

Completed
24 days until next milestone

Study Start

First participant enrolled

August 1, 2019

Completed
6.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Expected
Last Updated

November 19, 2024

Status Verified

November 1, 2024

Enrollment Period

6.4 years

First QC Date

July 4, 2019

Last Update Submit

November 17, 2024

Conditions

Keywords

Postoperative painAutomated video analysisPain scoreFace recognition

Outcome Measures

Primary Outcomes (2)

  • Change in Pain score

    Difference of Pain score before and after surgery/procedure/consultation. Pain scores (Numeric Rating Scale 0-10) will be asked, with zero being no pain, and 10 being the worst pain possible.

    Before surgery/procedure/consultation (1 day) and after surgery/procedure/consultation(1-3 days)

  • Extracted key points from video

    The collected videos will be further processed to extract key points, which will be the primary input for modelling algorithms and will further ensure anonymity of the patients in the video sequences. This will then be used for pain score prediction by correlated to outcome 1 (patients' reported pain score).

    Before surgery/procedure/consultation (1 day) and after surgery/procedure/consultation(1-3 days)

Secondary Outcomes (3)

  • Change in Hospital Anxiety and Depression Scale (HADS) score

    Before surgery/procedure/consultation (1 day) and after surgery/procedure/consultation(1-3 days)

  • EQ-5D-3L score

    Before surgery/procedure/consultation (1 day)

  • Child Pain Anxiety Symptoms Scale (CPASS) score

    Before surgery/procedure/consultation (1 day)

Study Arms (1)

Videotaping

EXPERIMENTAL

First phase: Patients will complete questionnaire, pain score in pre-anaesthetic clinic. Their face and body pose are videotaped. Patients are reviewed on pain scores with videotaping at 12-36 hrs, 36 hrs till before discharge post-operatively. Second phase: Patients will complete questionnaires, pain score, videotaping in pre-operative/-procedural/inpatient/outpatient consultation waiting areas. After surgery/procedure/consultation, i) Surgery: Patients rate pain scores with videotaping at 12-36 hrs, 36 hrs till before discharge. ii) Procedure: Patients are asked on questionnaire, pain score, videotaping. iii) Consultation: Patients are asked on questionnaire, pain score, videotaping on next consultation. Third phase: Patients will complete questionnaire and pain score in preoperative areas. They are videotaped while wearing a physiological wristband to monitor heart rate and body temperature. After surgery, pain score is rated while being videotaped with wristband.

Procedure: VideotapingOther: QuestionnairesDevice: Empatica E4 wristband

Interventions

VideotapingPROCEDURE

Before the videotaping, patients will be asked on their baseline pain scores. Their face and body pose from a frontal view will be videotaped via a mobile phone with no internet access. The collected videos will be further processed to extract key points, which will be the primary input for modelling algorithms and will further ensure anonymity of the patients in the video sequences.

Also known as: Videotaping via mobile phone
Videotaping

Patients will be asked to fill in 1-2 questionnaires before surgery/procedure/consultation (Hospital Anxiety and Depression Scale (HADS) and/or EQ-5D-3L). After surgery/procedure/consultation, patients will be again asked to fill in HADS questionnaire (optional). For pediatrics patient, only Child Pain Anxiety Symptoms Scale (CPASS) will be administered before the surgery.

Also known as: Questionnaires (HADS, EQ-5D-3L or CPASS)
Videotaping

A medical grade wearable device, Empatica E4 wristband, will be used in phase 3 for pediatrics patients to monitor real-time physiological data on heart rate and body temperature.

Videotaping

Eligibility Criteria

Age6 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Phases 1, 2:
  • Patients undergoing surgical and pain procedures, inpatient and outpatient consultations
  • American Society of Anaesthesiologists (ASA) physical status 1, 2 or 3 (ASA 1, 2 or 3) patients
  • Phase 3: Male children undergoing laser circumcision in day surgery

You may not qualify if:

  • Phases 1, 2:
  • Pregnant patients;
  • Medical problems/ medications:
  • Psychiatric disorders (e.g. anxiety, depression)
  • Neurological disorders (e.g. Cerebrovascular accident, Parkinson's Disease)
  • Musculoskeletal limitations that result in gait abnormalities/limitations
  • Phase 3:
  • Developmental delay/ cognitive impairment
  • Autism Spectrum disorder
  • Attention-deficit/hyperactivity disorder
  • Excessive anxiety or requires sedative premed
  • Chronic pain conditions and/or medication
  • Previous traumatic pain experience

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

KK Women's and Children's Hospital

Singapore, 229899, Singapore

Location

Singapore General Hospital

Singapore, Singapore

Location

Related Publications (1)

  • Lee M, Kennedy L, Girgensohn A, Wilcox L, Lee JS, Tan CW, Sng BL. Pain Intensity Estimation from Mobile Video Using 2D and 3D Facial Keypoints. arXiv preprint arXiv:2006.12246. 2020 Jun 17.

    RESULT

Related Links

MeSH Terms

Conditions

Pain, Postoperative

Interventions

Surveys and Questionnaires4-amino-4'-hydroxylaminodiphenylsulfone

Condition Hierarchy (Ancestors)

Postoperative ComplicationsPathologic ProcessesPathological Conditions, Signs and SymptomsPainNeurologic ManifestationsSigns and Symptoms

Intervention Hierarchy (Ancestors)

Data CollectionEpidemiologic MethodsInvestigative TechniquesHealth Care Evaluation MechanismsQuality of Health CareHealth Care Quality, Access, and EvaluationPublic HealthEnvironment and Public Health

Study Officials

  • Ban Leong Sng, FANZCA

    KK Women's and Children's Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER GOV
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 4, 2019

First Posted

July 8, 2019

Study Start

August 1, 2019

Primary Completion

December 31, 2025

Study Completion (Estimated)

December 31, 2026

Last Updated

November 19, 2024

Record last verified: 2024-11

Data Sharing

IPD Sharing
Will not share

Locations