Triggers for acute mood episodes in bipolar disorder: A systematic review
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abstract
OBJECTIVES: To identify triggers of acute mood episodes in bipolar disorder (BD). METHODS: We performed a systematic review in the following databases: Pubmed, Embase, and PsycInfo following the preferred reporting items for systematic reviews and meta-analysis guidelines. The systematic search encompassed all relevant studies published until May 23rd, 2022. RESULTS: A total of 108 studies (case reports/case series, interventional, prospective and retrospective studies) were included in the systematic review. While several decompensation triggers were identified, pharmacotherapy was the one with the largest body of evidence, particularly the use of antidepressants as triggers of manic/hypomanic episodes. Other identified triggers for mania were brain stimulation, energy drinks, acetyl-l-carnitine, St. John's wort, seasonal changes, hormonal changes and viral infections. There is a relative paucity of evidence concerning triggers for depressive relapses in BD, with possible triggers including fasting, decreased sleep and stressful life events. CONCLUSIONS: This is the first systematic review about triggers/precipitants of relapse in BD. Despite the importance of identification and management of potential triggers for BD decompensation, there is a lack of large observational studies addressing this topic, with most of the included studies being case reports/case series. Notwithstanding these limitations, antidepressant use is the trigger with the strongest evidence for manic relapse. More studies are needed to identify and manage triggers for relapse in BD.
