PT - JOURNAL ARTICLE AU - Martina Mason AU - Danielle Horton AU - Clare East AU - Rebecca Chadwick AU - Ian Smith TI - Prevalence of sleep disordered breathing (SDB) in patients undergoing coronary artery bypass graft (CABG) surgery DP - 2014 Sep 01 TA - European Respiratory Journal PG - P2256 VI - 44 IP - Suppl 58 4099 - http://erj.ersjournals.com/content/44/Suppl_58/P2256.short 4100 - http://erj.ersjournals.com/content/44/Suppl_58/P2256.full SO - Eur Respir J2014 Sep 01; 44 AB - BackgroundThe prevalence of SDB in patients undergoing cardiac surgery is unknown. SDB and coronary artery disease share some of the same risk factors and it is therefore likely that patients referred for cardiac surgery will include people with unrecognised SDB. We present preliminary data examining the prevalence of SDB in cardiac surgical population using nocturnal pulse oximetry as a diagnostic tool in the pre-operative setting.AimsThe aim was to assess the prevalence and the severity of SDB along with sleepiness (Epworth Sleepiness Score, ESS) in patients undergoing CABG with or without heart valve surgery at a UK tertiary cardiothoracic centre.MethodsPatients undergoing CABG were screened for the presence of SDB, prior to surgery, with the STOP-BANG questionnaire and overnight oximetry. Sleep apnoea was defined as a 4% oxygen desaturation index (ODI) of ≥5/hr.Results275 patients were approached and 99 consented to the study. Five patients had a pre-existing diagnosis of OSA and were not included in the analysis. Of 94 patients, 44 (47%) had a new diagnosis of SDB of whom 32 (73%) had mild SDB (ODI≥5<15), 11 (25%) had moderate SDB (ODI≥15<30) and 1 (2%) had severe SDB (ODI≥30). Eight patients (18%) were recommended Continuous Positive Airway Pressure (CPAP) therapy.View this table:Characteristics of the participantsConclusionThere is a high prevalence of SDB in patients undergoing CABG. The majority do not exhibit symptoms of sleepiness but in this series 8/44 were affected by OSA severe enough to require CPAP therapy.