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Multiple Sclerosis InternationalVolume 2012 2012, Article ID 673936, 7 pages

Research Article

Department of Neurology, Sleep Disorders Center, and Holtom-Garrett Program in Neuroimmunology, University of Michigan, C728 Med-Inn Building, 1500 E. Medical Center Drive, Ann Arbor, MI 48109, USA

Department of Neurology and Sleep Disorders Center, University of Michigan, C728 Med-Inn Building, 1500 E. Medical Center Drive, Ann Arbor, MI 48109, USA

Department of Neurology and Holtom-Garrett Program in Neuroimmunology, University of Michigan, 4013 Biomedical Science Research Center, 109 Zina Pitcher Place, SPC 2200, Ann Arbor, MI 48109, USA

Received 27 July 2012; Accepted 20 November 2012

Academic Editor: Iris-Katharina Penner

Copyright © 2012 Tiffany J. Braley et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objectives. To assess the relationship between nocturnal polysomnographic PSG findings and a group of key self-reported symptoms—fatigue, tiredness, lack of energy, and sleepiness—among sleep-laboratory referred patients with and without multiple sclerosis MS. Methods. PSG and questionnaire data from MS patients and matched controls were analyzed retrospectively. Associations between symptoms of fatigue, tiredness, lack of energy, sleepiness, and PSG variables of interest were examined among MS patients and controls. Results. More MS patients than controls reported fatigue, tiredness, and lack of energy to occur often or almost always Chi-square for each, but sleepiness was reported similarly by both groups . Among MS patients, tiredness correlated with sleepiness Spearman correlation , and a trend emerged toward correlation between fatigue and sleepiness Spearman correlation . Decreased sleep efficiency on PSGs correlated with fatigue, tiredness, and lack of energy in MS patients Spearman correlation , 0.029, and 0.048, resp., but not sleepiness or any symptom among controls. Conclusion. In comparison to controls, MS patients report more fatigue, tiredness, and lack energy, but not sleepiness. Fatigue and related symptoms may arise from MS itself or in relation to reduced sleep efficiency.





Autor: Tiffany J. Braley, Ronald D. Chervin, and Benjamin M. Segal

Fuente: https://www.hindawi.com/



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