Clinical trial for Circadian Rhythm Disorders
Official title Effects of Blocking Blue Light at Night Post CABG, AVR, MVR, CABG AVR, CABG MVR, or SAH
ClinicalTrials.gov ID: NCT04578249
What this study is testing
- What it's testing
- The study wants to find out whether removing blue light from hospital rooms at night lowers inflammation and reduces problems with thinking, mood, or sleep after surgery.
- Who it's for
- Adults who have had elective coronary artery bypass graft, aortic valve replacement, mitral valve replacement, combined heart procedures, or surgery for a brain bleed (subarachnoid hemorrhage).
- What's involved
- Participants will stay in a room where the lights are filtered to block blue light each night, while receiving normal post‑surgical care. Researchers will take blood samples, do brief cognitive tests, and ask about mood and sleep.
- Time commitment
- The study runs for the length of the hospital stay, with nightly light filtering and a few extra tests and questionnaires during that time.
A plain-language read of the study's public ClinicalTrials.gov listing. The study team confirms the details.
Who can take part
Ages 45 to 75
You may be able to join if
- Both men and women that are undergoing elective (non-emergency)
- on-pump CABG surgery,
- AVR,
- MVR,
- CABG AVR,
You likely can't join if
- Evidence or diagnosis of dementia or other cognitive deficit
- Diagnosed psychiatric disorder (including depression and anxiety)
- Organ failure [kidney (creatine \> 1.5 mg/dL), liver, etc.]
- Chronic obstructive pulmonary disease,
- Any immune disorder
- Acute infection
See the full eligibility criteria
- Both men and women that are undergoing elective (non-emergency)
- on-pump CABG surgery,
- AVR,
- MVR,
- CABG AVR,
- CABG MVR or
- No history of diagnosed psychiatric disorders or organ failure
- Evidence or diagnosis of dementia or other cognitive deficit
- Diagnosed psychiatric disorder (including depression and anxiety)
- Organ failure [kidney (creatine \> 1.5 mg/dL), liver, etc.]
- Chronic obstructive pulmonary disease,
- Any immune disorder
- Acute infection
- Prior cardiac surgery
- Elective aneurysms
- Combined cardiac operations
- Left main stenosis greater than 70%
- Left ventricular ejection fraction (LVEF) lower than 0.5
- Any condition that increases likelihood of the need for a blood transfusion during or after the surgery
- Clotting disorder
- Suspected less than 8th grade English reading comprehension level
The study team makes the final eligibility decision.
Where it is enrolling
- Morgantown, West Virginia, United States
Questions & answers
Do participants get paid in this trial?
This listing doesn't specify compensation. Many trials still reimburse travel or offer a stipend, so it's worth asking the study team when you connect.
Is it free to join, and do I need insurance?
Searching and applying through BridgeMD is free. In clinical trials the study-related treatment and visits are generally provided at no cost to you. You usually don't need insurance to take part, but confirm specifics with the study team.
How long does this study last?
The listing doesn't state an exact length. The study team walks you through the schedule and number of visits before you decide to enroll.
Who can join this trial?
This study is enrolling all sexes, 45 years to 75 years. The study team makes the final eligibility decision.
Where is this trial taking place?
This study is enrolling now at Morgantown, West Virginia, United States. Enter your location above to see the nearest enrolling site and check your eligibility.
Explore other conditions
BridgeMD is an information and trial-matching tool that is independent of the study sponsor. Details come from ClinicalTrials.gov. The study team decides eligibility, and your own doctor gives medical advice.