Abstract
AIMS: We reviewed studies that reported speed of antidepressant response to electroconvulsive therapy (ECT) in both bipolar depression (BPD) and major depressive disorder (MDD). METHODS: We identified English language reports allowing this comparison. RESULTS: Ten studies met our criteria. Four reported significantly faster response in BPD and in one there was trend for faster response. None reported evidence for slower response in BPD. CONCLUSION: The findings support further study of speed of response to ECT in BPD.