Clinical Trial Details
— Status: Active, not recruiting
Administrative data
NCT number |
NCT03905668 |
Other study ID # |
IRB201900354 -N |
Secondary ID |
1R21EB027344-011 |
Status |
Active, not recruiting |
Phase |
|
First received |
|
Last updated |
|
Start date |
February 3, 2016 |
Est. completion date |
July 2024 |
Study information
Verified date |
June 2024 |
Source |
University of Florida |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Observational
|
Clinical Trial Summary
The objective of this project is to create deep learning and machine learning models capable
of recognizing patient visual cues, including facial expressions such as pain and functional
activity. Many important details related to the visual assessment of patients, such as facial
expressions like pain, head and extremity movements, posture, and mobility are captured
sporadically by overburdened nurses or are not captured at all. Consequently, these important
visual cues, although associated with critical indices, such as physical functioning, pain,
and impending clinical deterioration, often cannot be incorporated into clinical status. The
study team will develop a sensing system to recognize facial and body movements as patient
visual cues. As part of a secondary evaluation method the study team will assess the models
ability to detect delirium.
Description:
Pain is a critical national health problem with nearly 50% of critical care patients
experience significant pain in the Intensive Care Unit (ICU). The under-assessment of pain
response is one of the primary barriers to the adequate treatment of pain in critically ill
patients, associated with many negative outcomes such as chronic pain after discharge,
prolonged mechanical ventilation, longer ICU stay, and increased mortality risk. Nonetheless,
many ICU patients are unable to self-report pain intensity due to clinical conditions,
ventilation devices, and altered consciousness. Currently, behavioral pain scales are used to
assess pain in nonverbal patients. Unfortunately, these scales require repetitive manual
administration by overburdened nurses. Moreover, prior work suggests that nurses caring for
quasi-sedated patients in critical care settings have considerable variability in pain
intensity ratings. Furthermore, manual pain assessment tools lack the capability to monitor
pain continuously and autonomously. Together, these challenges point to a critical need for
developing objective and autonomous pain recognition systems.
Delirium is another common complication of hospitalization that poses significant health
problems in hospitalized patients. It is most prevalent in surgical ICU patients with
diagnosis rates up to 80%. It is characterized by changes in cognition, activity level,
consciousness, and alertness. Delirium typically leads to changes in activity level and
alertness that pose additional health risks including risk of fall, inadequate mobilization,
disturbed sleep, inadequate pain control, and negative emotions. All of these effects are
difficult to monitor in real-time and further contribute to worsening of patient's cognitive
abilities, inhibit recovery, and slow down the rehabilitation process. Though about a third
of delirium cases can benefit from intervention, detecting and predicting delirium is still
very limited in practice. Current Delirium assessments need to be performed by trained
healthcare staff, are time consuming, and resource intensive. Due to the resources necessary
to complete the assessment, delirium is often assessed twice per day, despite the transient
nature of the disease state which can come and go undetected between the assessments. Jointly
these obstacles demonstrate a dire need for real-time autonomous delirium detection.
The investigators hypothesize that the proposed model would be able to leverage
accelerometer, electromyographic, and video data for the purpose of autonomously quantifying
patient facial expressions such as pain, characterizing functional activities, and delirium
status. Rationalizing that autonomous visual cue quantification and delirium detection can
reduce nurse workload and can enable real-time pain and delirium monitoring. Early detection
of delirium offers patients the best chance for good delirium treatment outcomes.