The effects of interventional light exposure on sleep-wake cycles in a post-operative cardiac population.

Not Applicable

• Conditions: Post-operative sleep patterns; Post-operative pain; Post-operative mood; Surgery - Other surgery; Cardiovascular - Other cardiovascular diseases; Other - Research that is not of generic health relevance and not applicable to specific health categories listed above

• Registration Number: ACTRN12609000719235
• Lead Sponsor: Anisoara Jardim

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2009-08-21
• Last Update Posted: 13 January 2020

Recruitment & Eligibility

• Status: ot yet recruiting
• Sex: All
• Target Recruitment: 60

Inclusion Criteria

Be scheduled for elective cardiac bypass surgery at Auckland City Hospital

Exclusion Criteria

Scheduled for a re-do of a surgical procedure.
Scheduled for requiring magnetic resonance imaging (MRI) as the core body temperature emasuring equipment is incompatible.

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
core body temperature rhythm changes (as measured by ingestible temperature probes) - reduction in rhythm, phase shift, changes in amplitude[at baseline (pre-operative, 1 week), post-operatively in hospital (1 week), post-operatively at home (1 week), at 12 weeks (1week)];changes in melatonin as measured by saliva and urine levels - reduction in rhythm, phase shift, changes in amplitude[at baseline (pre-operative, 1 week), post-operatively in hospital (1 week), post-operatively at home (1 week), at 12 weeks (1week)];mean beck depression score[at baseline (pre-operative), post-operatively in hospital (1 week post-operatively), post-operatively at home (2 week post-operatively), at 13 weeks];sleep-wake cycle patterns as measured by actigraphy[at baseline (pre-operative, 1 week), post-operatively in hospital (1 week), post-operatively at home (1 week), at 12 weeks (1week)]

Secondary Outcome Measures

Name	Time	Method
Pain management in the hospital environment as measured by visual analogue scales[at baseline (pre-operative, 1 week wherever necessary), post-operatively in hospital (1 week, every 6 hours), post-operatively at home (1 week, every six hours), at 12 weeks (1week wherever necessary)]