None listed
Conditions
Brief summary
The study will observe patients receiving usual care for major surgery where multi day stay is likely. It will capture video footage of patients faces prior to surgery (as a baseline) and also prior to surgery after they receive opioid as part of their anaesthetic, as they begin to wake from their anaesthetic but are not yet awake, and after they receive their first dose of opioid in the post anaesthesia care unit. The video recordings will then be analysed using a computer program for artificial intelligence facial recognition and information from this analysis will be correlated with known measurements tools to evaluate whether there is correlation between: - pain intensity levels and pain intensity measured with the behavioural pain intensity scale -specific facial expressions that indicate susceptibility to prolonged requirement for opioid analgesia Our hypothesis are that 1) there is strong correlation between facial expressions as measured by 3D facial mapping and pain intensity before waking from anaesthesia 2) there is strong correlation between certain facial expressions as measured by 3D facial mapping and susceptibility to opioid as expressed by prolonged duration of opioid requirement following surgery
Interventions
Video of facial expressions which are then interpreted by computer programme. The computer programme analyses participant videos for common patterns of facial expression among participants that are:
- linked to the presence of pain (as determined by behavioural pain scores measured after the video)
- linked to longer duration of requirement of opioids following surgery
Each video will be performed for 2 minutes;
1) prior to commencement of surgery as baseline
2) Just after opioid administe
Video of facial expressions which are then interpreted by computer programme. The computer programme analyses participant videos for common patterns of facial expression among participants that are: - linked to the presence of pain (as determined by behavioural pain scores measured after the video) - linked to longer duration of requirement of opioids following surgery Each video will be performed for 2 minutes; 1) prior to commencement of surgery as baseline 2) Just after opioid administered prior to commencement of anaesthesia 3) after surgery and anaesthesia completed prior to waking fully 4) when opioid is administered, prior to and after surgery - The video will be performed by the research assistant in all cases - All the videos will take place in theatre Each participant will be followed up following surgery until such a time as they have finished taking opioid to treat their pain. This will be for a period of one month following discharge from hospital
Sponsors
Strong Room technologies
Eligibility
Sex/Gender
All
Age
18 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
Over 18 years of age Having major surgery requiring multi day admission and general anaesthesia Opioid therapy planned by anaesthetist for postoperative pain manamgent
Exclusion criteria
Under 18 or over 80 years of age Poor English language comprehension Having received opioid analgesia in the two weeks prior to surgery Current or previous diagnosis of opioid disorder Current or previous diagnosis of illicit drug use disorder
Outcome results
None listed