PT  - JOURNAL ARTICLE
AU  - Yong Won Cho
AU  - Hye-Jin Moon
AU  - So Young Do
AU  - Seung-Ho Hur
TI  - The prevalence and predictive factors of obstructive sleep apnoea in the early phase of acute coronary syndrome
AID  - 10.1183/23120541.sleepandbreathing-2017.P63
DP  - 2017 Apr 01
TA  - ERJ Open Research
PG  - P63
VI  - 3
IP  - suppl 1
4099  - http://openres.ersjournals.com/content/3/suppl_1/P63.short
4100  - http://openres.ersjournals.com/content/3/suppl_1/P63.full
SO  - erjor2017 Apr 01; 3
AB  - Background Obstructive Sleep Apnea (OSA) is underdiagnosed in patients with acute coronary syndrome (ACS). The aim of this study was to assess the prevalence of OSA in ACS patients by overnight polysomnography (PSG) and to determine the diagnostic accuracy of the self-administered questionnaires for screening OSA.Methods We conducted a prospective study of 52 consecutive patients admitted for ACS. All patients had undergone an overnight PSG within 5 days following the percutaneous intervention. The diagnostic criteria of OSA were considered as apnea-hypopnea index (AHI) of ≥5 /hour, moderate to severe OSA (s-OSA) was defined as AHI of ≥15. All subjects completed a series of sleep questionnaires.Results Among 52 participants, age ranged from 25-82 years and 42 participants (80.8%) were men. The prevalence of OSA was 69.2%, classified as mild in 17 patients (32.7%), and as s-OSA in 19 patients (36.5%). Comparing s-OSA patients with the others, there were no differences in age, sex, or smoking habits. Patients with s-OSA exhibited a higher BMI (27.3±3.3 vs 23.5±3.0, p<0.001) and larger neck circumference (41.6±2.6 vs 38.3±2.1 cm, p<0.001). Excessive daytime sleepiness (EDS) was more common in the s-OSA group. Berlin Questionnaire predicted an AHI ≥ 15 with a sensitivity of 0.58 and a specificity of 0.66, versus a sensitivity of 0.53 and a specificity of 0.5 with the STOP-BANG (snoring, tiredness, observed apnea, high BP, BMI, age, neck circumference, and gender) questionnaire.Conclusion Prevalence of OSA was relatively high in patients admitted for ACS. The BQ has superior predictive value compared to STOP-BANG.