Study of the different sleep disturbances during the prodromal phase of depression and mania in bipolar disorders

Background One of the challenges in bipolar disorder (BD) lies in early detection of the illness and its recurrences, to improve prognosis. Sleep disturbances (SD) have been proposed as reliable predictive markers of conversion. While preliminary studies have explored the relationship between SD and...

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Bibliographic Details
Published in:Bipolar disorders 2024-08, Vol.26 (5), p.454-467
Main Authors: Basquin, Louise, Maruani, Julia, Leseur, Jeanne, Mauries, Sibylle, Bazin, Balthazar, Pineau, Guillaume, Henry, Chantal, Lejoyeux, Michel, Geoffroy, Pierre A.
Format: Article
Language:English
Subjects:
Affective disorders
Bipolar disorder
bipolar disorders
circadian rhythms
hypersomnolence
Insomnia
Mental depression
Mood
parasomnia
Patients
Perception
prodromal symptoms
Questionnaires
Restless legs syndrome
Sleep
Sleep disorders
sleep disturbances
sleep‐related movement disorders
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Summary:Background One of the challenges in bipolar disorder (BD) lies in early detection of the illness and its recurrences, to improve prognosis. Sleep disturbances (SD) have been proposed as reliable predictive markers of conversion. While preliminary studies have explored the relationship between SD and the onset of mood episodes, the results remain heterogeneous and a few have specifically examined patients' perception of prodromal symptoms and their progression until the episode occurs. Identifying prodromes represents a crucial clinical challenge, as it enables early intervention, thereby reducing the severity of BD. Therefore, the objective of this study is to better characterize and evaluate the progressive nature of SD as prodromal symptoms of mood episodes, and patients' perception of it. Methods Patients diagnosed with BD, either hospitalized or seeking treatment for a (hypo)manic or depressive episode benefited from standardized questionnaires, structured interviews, and self‐report questionnaires to evaluate SD prior to the current episode, as well as sociodemographic and clinical information. Results Out of the 41 patients included, 59% spontaneously reported SD prior to the episode, appearing 90 days before depression and 35 days before mania (pre‐indexed/spontaneous reports: 51.22% insomnia complaints, 4.88% hypersomnolence complaints, 7.32% parasomnias, 2.44% sleep movements). After inquiry about specific SD, the percentage of patients reporting prodromal SD increased significantly to 83%, appearing 210 days before depression and 112.5 days before mania (post‐indexed reports: 75.61% presented with insomnia complaints appearing 150 days before depression and 20 days before mania, 46.34% had hypersomnolence complaints appearing 60 days before depression, 43.9% had parasomnias appearing 210 days before depression and 22.5 days before mania, 36.59% had sleep movements appearing 120 days before depression and 150 days before mania). Of note, bruxism appeared in 35% of patients before mania, and restless legs syndrome in 20% of patients before depression. Conclusion This study highlights the very high prevalence of SD prior to a mood episode in patients with BD with differences between depressive and manic episodes. The more systematic screening of sleep alterations of the prodromal phase improved the recognition and characterization of different symptoms onset by patients. This underscores the need for precise questioning regarding sleep patterns in p
ISSN:1398-5647
1399-5618
1399-5618
DOI:10.1111/bdi.13429