TY - JOUR T1 - STOP-BANG questionnaire overestimates sleep apnea in asthmatic patients with nocturnal symptoms JF - European Respiratory Journal JO - Eur Respir J DO - 10.1183/13993003.congress-2016.PA2309 VL - 48 IS - suppl 60 SP - PA2309 AU - Margarida Dias AU - Maria João Oliveira AU - Dulce Apolinário AU - Daniela Ferreira AU - Inês Ladeira AU - Ivone Pascoal AU - Aurora Carvalho AU - Ricardo Lima Y1 - 2016/09/01 UR - http://erj.ersjournals.com/content/48/suppl_60/PA2309.abstract N2 - Introduction: Data suggests that nocturnal symptoms in asthmatic patients can be caused by concomitant undiagnosed obstructive sleep apnea (OSA). However, screening all patients using polysomnography (PSG) is expensive and time-consuming. STOP-BANG questionnaire (SBQ) is a validated screening tool for identifying OSA.Aim: To evaluate the SBQ in the screening of OSA in asthmatic patients with nocturnal symptoms.Methods: Prospective study with adult asthmatic patients followed in a Pulmonology outpatient clinic. All patients were asked about nocturnal symptoms (wheezing, coughing, shortness of breath, chest tightness). If patients had nocturnal symptoms (≥ once a week) they answered the SBQ, Epworth Sleepiness Scale (ESS) and Pittsburgh Sleep Quality Index (PSQI). If SBQ score was ≥3, they had an “intermediate/high probability of having OSA” and they performed a PSG to confirm it.Results: 77 patients included: 73% women, mean age 50±17years. 1 patient refused to participate. 19 patients (25%) had nocturnal symptoms: 84% women, mean age 50±13 years. 10% had mild asthma, 53% moderate and 37% severe; 74% had rhinitis. Using PSQI, 79% had a self-reported poor sleep quality. Using ESS, 63% had excessive sleepiness. 15 patients with nocturnal symptoms (79%) had a SBQ score ≥3, but OSA was only confirmed by PSG in 4 patients (27%): 3 patients mild OSA, 1 severe OSA.Conclusion: Sleep quality in asthmatic patients with nocturnal symptoms is poor and it is associated to excessive daytime sleepiness. SBQ seems to overestimate the presence of OSA in this group, probably because snoring can be caused by rhinitis and tiredness caused by poor sleep quality due to nocturnal symptoms of asthma. ER -