Bright light therapy as an adjunctive treatment with risperidone in patients with delirium: a randomized, open, parallel group study.
OBJECTIVE
The purpose of this study was to determine the effect of adjuvant light therapy with antipsychotic treatment in patients with delirium.


METHODS
Thirty-six patients were referred to the consulting psychiatry division of our hospital for a disturbance in consciousness. The patients were randomized to risperidone (n=16) or risperidone with light therapy (n=20). They were evaluated on Day 0 (baseline) and on Days 1 to 5 with the Delirium Rating Scale (DRS) and the Memorial Delirium Assessment Scale (MDAS). Sleep parameters were measured using a sleep log.


RESULTS
Mean DRS and MDAS scores decreased significantly over time in both treatment groups. Risperidone with light therapy group showed a significantly greater decrease in the DRS score than the risperidone-only group (F=2.87, P=.025), but the MDAS score was not significantly different between the two groups. There was a significant improvement in total sleep time (F=2.07, P=.037) and sleep efficiency (F=2.79, P=.029) in the risperidone with light therapy group than in the risperidone-only group.


CONCLUSIONS
Our results indicate that risperidone with light therapy may be a helpful adjuvant treatment for patients with delirium. Adequately powered studies with a head-to-head comparison design are mandatory to confirm our findings.
Department of Psychiatry, Korea University College of Medicine, Seoul 425-707, South Korea.
Jaewon
J
Yang
Wonseok
W
Choi
Young-Hoon
YH
Ko
Sook-Haeng
SH
Joe
Changsu
C
Han
Yong-Ku
YK
Kim
D000368:Aged; D000369:Aged, 80 and over; D014150:Antipsychotic Agents / Q000627:therapeutic use*; D003131:Combined Modality Therapy / Q000379:methods; D003693:Delirium / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010789:Phototherapy; D056910:Republic of Korea; D018967:Risperidone / Q000627:therapeutic use*; D012890:Sleep; D016896:Treatment Outcome
D014150:Antipsychotic Agents; D018967:Risperidone