title: Pathological sleep apnoea frequency remains permanent in ischaemic stroke and it is transient in haemorrhagic stroke.
abstract: Frequency and severity of sleep apnoeas, snoring history, standard clinical stroke scale were assessed in 106 acute (73 ischaemic, 33 haemorrhagic) stroke patients. Thirty-seven patients with ischaemic stroke and 14 patients with cerebral bleeding, each having pathological oxygen desaturation index during sleep, were re-tested in 3 months for sleep apnoeas and clinical stroke scale. In haemorrhagic strokes, the apnoea frequency decreased parallel with clinical improvement; but it remained as frequent as in the acute phase in the ischaemic stroke group (p = 0.0002). Apnoea frequency decreased mostly during the course of posterior stroke (p = 0.0001). It is concluded that pathological sleep apnoea frequency remains stable after ischaemic stroke indicating a concomitant obstructive sleep apnoea syndrome and sleep apnoea is a transitory symptom of haemorrhagic strokes.
authors.affiliation: National Institute of Psychiatry and Neurology Epilepsy Centre, National Stroke Centre, Budapest, Hungary. szucsan@opni.hu
authors.forename: Anna
authors.initials: A
authors.lastname: Szücs
authors.forename: József
authors.initials: J
authors.lastname: Vitrai
authors.forename: József
authors.initials: J
authors.lastname: Janszky
authors.forename: György
authors.initials: G
authors.lastname: Migléczi
authors.forename: Róbert
authors.initials: R
authors.lastname: Bódizs
authors.forename: Péter
authors.initials: P
authors.lastname: Halász
authors.forename: Zoltán
authors.initials: Z
authors.lastname: Nagy
mesh_terms: D000368:Aged; D002545:Brain Ischemia / Q000150:complications*; D002543:Cerebral Hemorrhage / Q000150:complications*; D015331:Cohort Studies; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D012720:Severity of Illness Index; D012891:Sleep Apnea Syndromes / Q000150:complications* / Q000453:epidemiology* / Q000503:physiopathology; D012913:Snoring / Q000150:complications; D020521:Stroke / Q000150:complications* / Q000209:etiology*