Excessive daytime sleepiness in obstructive sleep apnea In Bhumibol Adulyadej Hospital
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Date
2010-03-14
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Royal Thai Airforce Medical Gazette
Abstract
Background: Excessive daytime sleepiness is a serious effect on obstructive sleep apnea leading to health problems, altered quantity and quality of work in daytime, especially risk of industrial and automobile accident. Material and Method: Cross-sectional Descriptive study. To collected demographic data of the patients such as Age, Sex, Body mass index (BMI). All of the patients underwent of Polysomnography (PSG) and Epworth Sleepiness Scale questionnaire (ESS).Results: There were patients who underwent Polysomnography have inclusion in this study 160 patients Range of age 26-80 year, Male 77.5%, Female 22.5%, Mean age 49.1±11.4, Lowest BMI 16.6 Highest BMI 45.7 Mean BMI 27.6±4.2, Mean lowest oxygen saturated 78.4%±12.1. Lowest Apnea hypopnea index (AHI) 5.4 Highest 93.6 Mean AHI 33.0 ±25.1, OSA classify in mild (AHI \> 5-15) 27.4%, moderate (AHI 16-30) 24.0%, severe (AHI \> 30) 48.6%. Excessive daytime sleepiness (EDS) was demonstrated in Epworth sleepiness Scale (ESS) Mean 11.8±5.0, EDS classify in mild degree (ESS \>10-15) 36.2%, severe (\>15) 20.0%. EDS in male and female Mean ESS 15.74±4.01 and 13.88±2.35. The prevalence of EDS in OSA 52.5% to classified in mild degree 33.1% and severe 19.4%. The prevalence of EDS classify in male 41.2%, female 15%. The prevalence of EDS classify in BMI \> 25 and BMI \> 30 found 44.3% and 15%, when classify in each age groups 20-40, 41-55, \> 55 years the prevalence are 10%, 30.6% and 15.6%. Significant differences EDS between male and female at p \< 0.05. EDS in each age group 20-40, 41-55, \> 55 years Mean ESS 14.56±3.20, 15.29±3.89 and 15.60±3.77. No significant differences among age groups p \< 0.05. For study correlations between obstructive sleep apnea and excessive daytime sleepiness found that weak relations between AHI and ESS p=0.003 (Pearson Correlation = 0.218).Conclusion: The excessive daytime sleepiness in obstructive sleep apnea patients found the prevalence of EDS in OSA 52.5% classify in mild 33.1% severe 19.4%. This study found more than 50% of patients have excessive daytime sleepiness. If no other management in these patients these problems are accumulate and severe resulting in health problem leading to poor quality of life, lack of work efficiency, increased risk for accidents and turn to chronic illness diseases.
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Royal Thai Airforce Medical Gazette; Vol.54 No.2 May-August 2008; 1