B Etain1,2,3,4,5, M Lajnef6, C Brichant-Petitjean1,2,3, P A Geoffroy1,2,3,4, C Henry4,6,7,8,9, S Gard4,10, J P Kahn4,11,12, M Leboyer4,6,7,8, A H Young5, F Bellivier1,2,3,4. 1. Université Paris Diderot, Sorbonne Paris Cité, UMR-S 1144, Paris, France. 2. AP-HP, GH Saint-Louis - Lariboisière - F. Widal, Pôle de Psychiatrie et de Médecine Addictologique, Paris cedex, France. 3. Inserm, U1144, Paris, France. 4. Fondation FondaMental, Créteil, France. 5. Centre for Affective Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College of London, London, UK. 6. INSERM, U955, Psychiatrie Translationnelle, Créteil, France. 7. Faculté de médecine, Université Paris Est, Créteil, France. 8. AP-HP, Hôpitaux Universitaires Albert Chenevier-Henri Mondor, DHU PePSY, Pôle de Psychiatrie, Créteil, France. 9. Institut Pasteur, Unité Perception et Mémoire, Paris, France. 10. Université Hôpital Charles Perrens, Centre Expert Trouble Bipolaire, Service de Psychiatrie Adulte, Pôle 3-4-7, Bordeaux, France. 11. Pôle de Psychiatrie et Psychologie Clinique (54G06), Centre Psychothérapique de Nancy, Laxou, France. 12. Université de Lorraine, Nancy, France.
Abstract
OBJECTIVES: Reliable predictors of response to lithium are still lacking in bipolar disorders (BDs). However, childhood trauma has been hypothesized to be associated with poor response to lithium. METHODS: We included 148 patients with BD, euthymic when retrospectively and clinically assessed for response to lithium and childhood trauma using reliable scales. RESULTS: According to the 'Alda scale', the sample consisted in 20.3% of excellent responders, 49.3% of partial responders and 30.4% of non-responders to lithium. A higher level of physical abuse significantly correlated with a lower level of response to lithium (P = 0.009). As compared to patients not exposed to any abuse, patients with at least two trauma abuses (emotional, physical or sexual) were more at risk of belonging to the non-responders group (OR = 4.91 95% CI (1.01-27.02)). Among investigated clinical variables, lifetime presence of mixed episodes and alcohol misuse were associated with non-response to lithium. Multivariate analyses demonstrated that physical abuse and mixed episodes were independently associated with poor response to lithium (P = 0.005 and P = 0.013 respectively). CONCLUSIONS: Childhood physical abuse might be involved in a poor future response to lithium prophylaxis, this effect being independent of the association between clinical expression of BD and poor response to lithium.
OBJECTIVES: Reliable predictors of response to lithium are still lacking in bipolar disorders (BDs). However, childhood trauma has been hypothesized to be associated with poor response to lithium. METHODS: We included 148 patients with BD, euthymic when retrospectively and clinically assessed for response to lithium and childhood trauma using reliable scales. RESULTS: According to the 'Alda scale', the sample consisted in 20.3% of excellent responders, 49.3% of partial responders and 30.4% of non-responders to lithium. A higher level of physical abuse significantly correlated with a lower level of response to lithium (P = 0.009). As compared to patients not exposed to any abuse, patients with at least two trauma abuses (emotional, physical or sexual) were more at risk of belonging to the non-responders group (OR = 4.91 95% CI (1.01-27.02)). Among investigated clinical variables, lifetime presence of mixed episodes and alcohol misuse were associated with non-response to lithium. Multivariate analyses demonstrated that physical abuse and mixed episodes were independently associated with poor response to lithium (P = 0.005 and P = 0.013 respectively). CONCLUSIONS: Childhood physical abuse might be involved in a poor future response to lithium prophylaxis, this effect being independent of the association between clinical expression of BD and poor response to lithium.
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