open access
Vol 78, No 2 (2010)
ORIGINAL PAPERS
Published online: 2010-03-19
Submitted: 2013-02-22
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Prevalence of stroke in patients with obstructive sleep apnoea
Anna Rudnicka, Robert Pływaczewski, Luiza Jończak, Dorota Górecka, Paweł Śliwiński
Pneumonol Alergol Pol 2010;78(2):121-125.
open access
Vol 78, No 2 (2010)
ORIGINAL PAPERS
Published online: 2010-03-19
Submitted: 2013-02-22
Abstract
Introduction: Results of earlier population and clinical studies confirmed relationship between stroke and obstructive sleep apnea. Our previous study on epidemiology of sleep-disordered breathing in Warsaw based on 676 subjects, mean age 56.6 ± 8.2 years, confirmed OSA in 76 subjects (11.3%) mean apnea hypopnea index (AHI) — 25.3 ± 16.1 revealed low incidence of stroke in OSA group (2 pts; 2.6%) and in subjects without OSA (20 pts; 3.4%). The aim of this study was to assess prevalence of stroke in newly diagnosed OSA subjects qualified to CPAP therapy.
Material and methods: We studied 342 consecutive pts (263 males and 79 females) - mean age - 55.4 ± 10.1 years with severe disease - AHI 39.7 ± 22.5 and obesity - body mass index 35 ± 6.6. History of stroke was confirmed in 16 pts before continuous positive airway pressure (CPAP) introduction (4.7%) - group 1. Group 2 (without history of stroke) comprised of 326 pts (95.3%).
Results: Multiple linear regression analysis revealed significant correlation between stroke and time spent in desaturation below 90% during polysomnografhy - T90 (β = -0.22, p = 0.009), diabetes (b = 0.16, p = 0.006), Epworth sleepiness score (β = 0.14, p = 0.02) and coronary artery disease (b = 0.14, p = 0.03).
Conclusions: Stroke in OSA pts before CPAP treatment was related to overnight and daytime oxygenation, diabetes, daytime sleepiness and coronary artery disease. Incidence of stroke in our group was low (4.7%) and similar to previous data from population study.
Pneumonol. Alergol. Pol. 2010; 78, 2: 121-125
Abstract
Introduction: Results of earlier population and clinical studies confirmed relationship between stroke and obstructive sleep apnea. Our previous study on epidemiology of sleep-disordered breathing in Warsaw based on 676 subjects, mean age 56.6 ± 8.2 years, confirmed OSA in 76 subjects (11.3%) mean apnea hypopnea index (AHI) — 25.3 ± 16.1 revealed low incidence of stroke in OSA group (2 pts; 2.6%) and in subjects without OSA (20 pts; 3.4%). The aim of this study was to assess prevalence of stroke in newly diagnosed OSA subjects qualified to CPAP therapy.
Material and methods: We studied 342 consecutive pts (263 males and 79 females) - mean age - 55.4 ± 10.1 years with severe disease - AHI 39.7 ± 22.5 and obesity - body mass index 35 ± 6.6. History of stroke was confirmed in 16 pts before continuous positive airway pressure (CPAP) introduction (4.7%) - group 1. Group 2 (without history of stroke) comprised of 326 pts (95.3%).
Results: Multiple linear regression analysis revealed significant correlation between stroke and time spent in desaturation below 90% during polysomnografhy - T90 (β = -0.22, p = 0.009), diabetes (b = 0.16, p = 0.006), Epworth sleepiness score (β = 0.14, p = 0.02) and coronary artery disease (b = 0.14, p = 0.03).
Conclusions: Stroke in OSA pts before CPAP treatment was related to overnight and daytime oxygenation, diabetes, daytime sleepiness and coronary artery disease. Incidence of stroke in our group was low (4.7%) and similar to previous data from population study.
Pneumonol. Alergol. Pol. 2010; 78, 2: 121-125
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Keywords
obstructive sleep apnoea; stroke; CPAP
About this articleTitle
Prevalence of stroke in patients with obstructive sleep apnoea
Journal
Advances in Respiratory Medicine
Issue
Pages
121-125
Published online
2010-03-19
Bibliographic record
Pneumonol Alergol Pol 2010;78(2):121-125.
Keywords
obstructive sleep apnoea
stroke
CPAP
Authors
Anna Rudnicka
Robert Pływaczewski
Luiza Jończak
Dorota Górecka
Paweł Śliwiński
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