Green Light for Post-Operative Wellness

ConditionSurgery
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorRebecca E Kotcher, MD

About this trial

This is an unblinded, parallel group randomized controlled trial to evaluate bright green light as an adjunct therapy after surgery at UPMC Shadyside. The primary outcome measure will be pain intensity with secondary outcome measures including opioid requirements, sleep quality, mood, and overall post-operative recovery. Specific aims/hypotheses for this study are as follows:

Aim 1: To assess bright green light therapy's potential as a complementary post-operative analgesic strategy in patients recovering from surgery Hypothesis 1: Participants exposed to bright green light, in comparison to dim white (ambient) light, will have improved postoperative pain scores and lower opioid use.

Aim 2: To examine the impact of bright green light therapy on patient-centered measures of post-operative recovery that may be related to improved circadian function.

Hypothesis 2: Participants exposed to bright green light, in comparison to dim white (ambient) light, will have improved quality of post-operative recovery, enhanced sleep, and reduced anxiety and depression.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Age >/= 18 years

Planned to undergo laparoscopic or robotic surgery at UPMC Shadyside Hospital

Anticipated post-operative length of stay >/= 48 hours

Able to speak and read English fluently, with the capacity to provide informed consent and complete the associated surveys independently

Disqualifiers

Pregnancy

History of significant ocular issues/dysfunction (†‡ ) (e.g., glaucoma, ocular trauma, macular degeneration, cataracts) that would interfere with the ocular mechanism of action

History of significant neurological disease (‡) (e.g., traumatic brain injury, stroke, neurodegenerative disease) that would compromise the reliability of pain screening and/or interfere with the central mechanism of action

History of bipolar disorder or schizophrenia, which could increase the risk of an adverse reaction to light exposure (i.e., acute mania)

Trial design

Design model

Parallel

Treatments tested in this trial

  • Bright Green Light Therapy

    Device

    Day Light Classic Plus light therapy lamp with filter to yield bright green light.

  • Dim White Light Therapy

    Device

    Day Light Classic Plus light therapy lamp with filter to yield dim white light.

Treatment groups

60 Participants
are divided into 2 treatment groups
Group A: Bright Green Light Exposure ArmExperimental treatment 1 intervention
Group B: Dim White Light Exposure ArmActive comparator 1 intervention

Trial outcomes

Primary outcomes

1

Incisional Pain Intensity with Movement

Incisional pain with movement (after coughing) will be reported using a Numerical Rating Scale (NRS), scored from 0 to10, with 0 indicates "no pain" and 10 indicates "the worst pain imaginable". Post-intervention NRS on Post-Operative Day 2 will be compared between study arms as the primary outcome.

Time frame
Post-Operative Day 2

Secondary outcomes

1

Incisional Pain Intensity at Rest

Incisional pain at rest will be reported using a Numerical Rating Scale (NRS), scored from 0 to10, where 0 indicates "no pain" and 10 indicates "the worst pain imaginable". Post-intervention NRS on Post-Operative Day 2 will be compared between study arms as a secondary outcome.

Time frame
Post-Operative Day 2
2

Oral Morphine Equivalents (OME)

Total Opioid use will be obtained from the electronic medical record. Oral Morphine Equivalent (OME) use during the first 48-hours after surgery will be compared (on Post-Operative Days 1 and 2) between study arms.

Time frame
Post-Operative Day 1, and Post-Operative Day 2
3

Sleep Disturbance

Sleep disturbance will be assessed using the PROMIS (Patient-Reported Outcomes Measurement Information System) Sleep Disturbance 8-Item Short Form. Standardized T-scores (population mean = 50, standard deviation =10) will be compared between study arms as a secondary outcome. Higher scores will indicate higher levels of sleep disturbance.

Time frame
Post-Operative Day 7
4

Depression

Depression will be measured using the PROMIS (Patient-Reported Outcomes Measurement Information System) Depression 8-Item Short Form. Minimum score of 8, and Maximum score of 40. Higher scores will indicate higher levels of depression (worse outcome). Standardized T-scores (population mean = 50, standard deviation = 10) on post-operative Day 7 will be compared between study arms as a secondary outcome.

Time frame
Post-Operative Day 7

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Rebecca E Kotcher, MD

Lead sponsor

University of Pittsburgh

Sponsor institution