Silva TME, Moreira GA, Quadros AAJ, Pradella-Hallinan M, Tufik S, Oliveira ASB. Analysis of sleep characteristics in post-polio syndrome patients.
ARQUIVOS DE NEURO-PSIQUIATRIA 2011;
68:535-40. [PMID:
20730305 DOI:
10.1590/s0004-282x2010000400011]
[Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2009] [Accepted: 02/11/2010] [Indexed: 11/21/2022]
Abstract
UNLABELLED
The main post-polio syndrome (PPS) symptoms are new weakness, new atrophy, fatigue, pain and sleep disturbances. Polysomnography is the gold standard for sleep analysis.
OBJECTIVE
To analyze sleep patterns in PPS patients.
METHOD
Sixty patients (mean age 46.8+/-11.3 years) at the Federal University of São Paulo (UNIFESP/EPM) complaining of sleep disturbances were evaluated by means of polysomnography, performed at the Sleep Institute.
RESULTS
Sleep efficiency was lower due to high sleep latency and arousal index. The apnea and hypopnea index (AHI) and the periodic limb movements (PLM) index were higher. Sleep architecture was also impaired. There were no abnormalities of oxygen saturation, carbon dioxide levels, respiratory rate or heart rate.
CONCLUSION
New post-polio sleep disturbances were isolated symptoms. It appears that these symptoms were not due to post-polio features, but rather, that they were due to dysfunction of the surviving motor neurons in the brainstem. Abnormal dopamine production, which is responsible for many sleep-related breathing disorders and abnormal movements, may also have been implicated in the present findings.
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