title: Sleep architecture alterations in patients with periodic limb movements disorder during sleep and sleep breathing disorders.
abstract: BACKGROUND
  Sleep movement disorders includes mainly periodic limb movement and others. The more frequent breathing disorders are: obstructive sleep apnea-hypopnea syndrome and primary snoring.
  
  
  OBJECTIVE
  To compare sleep architecture in periodic limb movements and breathing disorders of different severity, and weight their interactions.
  
  
  METHODS
  We compared sleep architecture in 160 patients, divided in six groups: periodic limb movements (n=25), obstructive apnea only (n=30), periodic limb movements/snoring (n=30), periodic limb movements/mild apnea (n=25), periodic limb movements/moderate apnea (n=25), periodic limb movements/severe apnea (n=26). Polysomnographic variables were compared by analysis of variance and Tukey test.
  
  
  RESULTS
  We observed an increase of percentage of awakenings in the group with periodic limb movements/severe apnea. We found an increase of percentage of light sleep in the group with obstructive apnea only with respect to periodic limb movements group. The group with obstructive apnea only presented less rapid eye movements sleep in relation with group with periodic limb movements. We found an increase of awakenings in the group with periodic limb movements/severe apnea to the group with periodic limb movements only. Oxygen saturation showed a decrease in the group with periodic limb movements/severe apnea and obstructive apnea only group to periodic limb movements only group.
  
  
  CONCLUSIONS
  Periodic limb movements and breathing disorders, resulted in more additive changes in sleep architecture alterations, than as separately disorders, in a complex interaction. Research in these relations deserve more investigations.
authors.affiliation: Clínic of Sleep Disorders, School of Medicine, National University of Mexico, Mexico City, México.
authors.forename: Virginia
authors.initials: V
authors.lastname: Mancebo-Sosa
authors.affiliation: Clínic of Sleep Disorders, School of Medicine, National University of Mexico, Mexico City, México.
authors.forename: Viridiana
authors.initials: V
authors.lastname: Mancilla-Hernández
authors.affiliation: Clínic of Sleep Disorders, School of Medicine, National University of Mexico, Mexico City, México.
authors.forename: Joana
authors.initials: J
authors.lastname: Miranda-Ortiz
authors.affiliation: Clínic of Sleep Disorders, School of Medicine, National University of Mexico, Mexico City, México.
authors.forename: Aremy
authors.initials: A
authors.lastname: Hernández-Torres
authors.affiliation: Clínic of Sleep Disorders, School of Medicine, National University of Mexico, Mexico City, México.
authors.forename: Romel
authors.initials: R
authors.lastname: Gutierrez-Escobar
authors.affiliation: Clínic of Sleep Disorders, School of Medicine, National University of Mexico, Mexico City, México.
authors.forename: Adrian
authors.initials: A
authors.lastname: Poblano
authors.affiliation: Clínic of Sleep Disorders, School of Medicine, National University of Mexico, Mexico City, México.
authors.forename: Ulises
authors.initials: U
authors.lastname: Jiménez-Correa
keywords: Obstructive sleep apnea-hypopnea syndrome; Periodic limb movements disorder; Polysomnography; Sleep architecture