Sleep-disordered breathing in amyotrophic lateral sclerosis

被引:132
作者
Ferguson, KA
Strong, MJ
Ahmad, D
George, CFP
机构
[1] UNIV WESTERN ONTARIO,DEPT MED,LONDON,ON,CANADA
[2] UNIV WESTERN ONTARIO,DEPT CLIN NEUROL SCI,LONDON,ON,CANADA
关键词
amyotrophic lateral sclerosis; motor neuron disease; sleep; sleep-disordered breathing; sleep disorders;
D O I
10.1378/chest.110.3.664
中图分类号
R4 [临床医学];
学科分类号
1002 ; 100602 ;
摘要
Objective: The purpose of this study was to assess sleep and breathing in patients with amyotrophic lateral sclerosis (ALS) with bulbar muscle involvement. Design: Prospective, controlled study of sleep and breathing measured during polysomnography. Setting: University teaching hospital and referral center, Patients: Patients with definite ALS and healthy age-matched control subjects. Interventions: Eighteen ALS patients and 10 age-matched control subjects underwent one night of polysomnography, Thirteen patients with ALS were studied for a second night. Results: The ALS patients had more arousals per hour (p=0.008), more stage 1 sleep (p=0.01), and a shorter total sleep time (TST) (279+/-69 vs 331.4+/-55.9 min, mean+/-SD, p=0.04) than the control subjects. The ALS patients had mild sleep-disordered breathing with a greater apnea/hypopnea index (AHI) than the control subjects (p=0.005). On the second night of polysomnography, there was an increase in TST (p=0.003) and rapid eye movement (REM) sleep (p=0.009), an improvement in sleep efficiency (p=0.02), and less stage 1 sleep (p=0.04). Eight ALS patients had sleep-disordered breathing consisting of periods of hypoventilation, predominantly during REM sleep. Conclusions: Sleep-disordered breathing occurs in patients with ALS and is similar to patients without ALS with respiratory muscle weakness. No obstructive sleep apnea was observed. One potential reason for its absence might be the inability of patients with respiratory muscle weakness to generate an inspiratory pressure greater than the upper airway closing pressure. This hypothesis should be addressed in future studies.
引用
收藏
页码:664 / 669
页数:6
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