Bright light therapy may reduce rates of postoperative delirium and make early ambulation possible, claim Japanese researchers.
They said there had previously been no studies on the use of light for the prevention of postoperative delirium.
They tested the method for maintaining circadian rhythm in a small study of 11 patients following operations for oesophageal cancer. The intervention appeared to speed up ambulation.
The authors said: 'The study group could begin ambulation about two days earlier than the control group.'
They added that they wanted to test the technique in a larger study to confirm the results.
Intensive and Critical Care Nursing (2007) 23: 289-297