CC BY-NC-ND 4.0 · Arq Neuropsiquiatr 2020; 78(12): 772-777
DOI: 10.1590/0004-282X20200064
Article

Depression is a major determinant of sleep abnormalities in patients with epilepsy

A depressão é um dos principais determinantes das anormalidades do sono em pacientes com epilepsia
1   Istanbul University, Istanbul School of Medicine, Department of Neurology, Fatih, İstanbul, Turkey.
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1   Istanbul University, Istanbul School of Medicine, Department of Neurology, Fatih, İstanbul, Turkey.
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2   University of Health Sciences Prof. Dr. Mazhar Osman Bakırköy Research and Training Hospital for Psychiatry, Neurology, Neurosurgery, Department of Neurology, Bakırköy, Istanbul, Turkey.
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1   Istanbul University, Istanbul School of Medicine, Department of Neurology, Fatih, İstanbul, Turkey.
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1   Istanbul University, Istanbul School of Medicine, Department of Neurology, Fatih, İstanbul, Turkey.
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1   Istanbul University, Istanbul School of Medicine, Department of Neurology, Fatih, İstanbul, Turkey.
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3   Koç University, Department of Neurology, Istanbul, Turkey.
› Author Affiliations

ABSTRACT

Introduction: We aimed to identify sleep disorders in patients with epilepsy and compare this group with a healthy population. We also analyzed the features of sleep disorders in patients with epilepsy to demonstrate the effect of seizures and seizure types on sleep. Methods: Our study assessed 43 patients with epilepsy and 53 age- and gender-matched healthy controls. The demographic and clinical data of all participants were recorded. The Epworth Sleepiness Scale, Pittsburgh Sleep Quality Index (PSQI), International Restless Legs Syndrome Study Group Rating Scale, Berlin Questionnaire, and Beck Depression Inventory (BDI) were administered to all study subjects. The interview used to evaluate insomnia is based on the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition - DSM-5 diagnostic criteria. Results: Twenty-four patients (55.8%) and 26 controls (49.1%) are women. The mean age of patients and controls was 34.2±11.37 (16-71) and 34.6±11.28 (16-77), respectively. Patients with epilepsy had depression more often than controls, a result that was statistically significant (p<0.0001). We found no statistically significant difference between sleep parameters of patients and controls with normal BDI scores (p>0.05). Patients with depression had worse results on the Berlin Questionnaire and PSQI total score, with statistical significance (p=0.002). Nocturnal seizures, seizure type, and drug treatment had no effect on sleep (p>0.05). Conclusion: We concluded that depression rather than epilepsy negatively affects sleep, suggesting that all patients should be asked about their mood and sleep complaints.

RESUMO

Introdução: O objetivo deste estudo foi identificar distúrbios do sono em pacientes com epilepsia e compará-los com uma população saudável. Também foram examinadas as características dos distúrbios do sono em pacientes com epilepsia para demonstrar o efeito e os tipos de convulsões no sono. Métodos: O estudo consistiu em 43 pacientes com epilepsia e 53 controles saudáveis pareados por idade e sexo. Os dados demográficos e clínicos de todos os participantes foram registrados. Todos os participantes do estudo receberam a Escala de Sonolência de Epworth, o Índice de Qualidade do Sono de Pittsburgh (Pittsburch Sleep QUality Index - PSQI), o Questionário do Grupo Internacional de Estudos das Pernas Inquietas, o Questionário de Berlim e o Inventário de Depressão de Beck. A entrevista usada para avaliar a insônia é baseada nos critérios do DSM-V. Resultados: Vinte e quatro pacientes (55,8%) são do sexo feminino e vinte e seis do grupo controle (49,1%) são do sexo feminino. A média de idade dos pacientes e do grupo controle é de 34,2±11,37 (16-71) e 34,6±11,28 (16-77), respectivamente. Pacientes com epilepsia sofrem mais de depressão do que os controles e esse resultado é estatisticamente significativo (p<0,0001). Não houve diferença estatisticamente significativa entre os parâmetros do sono dos pacientes e dos controles que apresentaram escores de Beck normais (p>0,05). Pacientes com depressão apresentam resultados piores no escore total do PSQI de Berlim, o que é estatisticamente significativo (p=0,002). As convulsões noturnas, o tipo de convulsão e o tratamento medicamentoso não afetaram o sono (p>0,05). Conclusão: Determinamos que a depressão, e não a epilepsia, afeta negativamente o sono dos pacientes, sugerindo que todos os pacientes devem ser questionados sobre seu humor e queixas de sono.

Authors’ contributions:

EK, CY and HÖD: performed data collection. BT: data analysis and interpretation. EK: primary author. CG: conceived the ideas. CG BB and NB: provided revisions to scientific consent of manuscript. CG, BB and NB: principal investigators.




Publication History

Received: 24 April 2020

Accepted: 27 May 2020

Article published online:
07 June 2023

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