{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,31]],"date-time":"2026-07-31T01:22:33Z","timestamp":1785460953036,"version":"3.56.0"},"reference-count":59,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2026,1,14]],"date-time":"2026-01-14T00:00:00Z","timestamp":1768348800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Pathophysiology"],"abstract":"<jats:p>Objective: To assess whether chronic rhinosinusitis (CRS) severity is associated with obstructive sleep apnea (OSA) in adult people with cystic fibrosis (pwCF). Methods: We conducted a retrospective single-center study of 44 adults with CF who underwent overnight polysomnography (PSG), Epworth Sleepiness Scale (ESS) assessment, and sinus computed tomography (CT). CRS severity was quantified using the Lund\u2013Mackay score (LMS) and the main nasal cavity score (MNCS). OSA was defined by Apnea\u2013Hypopnea Index (AHI) thresholds per American Academy of Sleep Medicine criteria. Results: Participants had a mean age of 31.1 \u00b1 8.4 years and a mean percent predicted FEV1 of 51.8 \u00b1 15.7. Sinus CT showed radiological evidence of CRS in all participants. Mean AHI was 5.3 \u00b1 4.4\/h; 48% had AHI \u2265 5\/h. There were no significant differences between pwCF with and without OSA in age, sex, BMI, lung function, total sleep time, sleep efficiency, or ESS score (all p &gt; 0.05). Mean LMS and MNCS did not differ between OSA and non-OSA groups (both p &gt; 0.05), and neither score correlated with PSG parameters or ESS (all p &gt; 0.05). Receiver operating characteristic (ROC) analysis demonstrated low discriminative ability of LMS and MNCS for predicting OSA (AUCs &lt; 0.70, p &lt; 0.05). Conclusions: In this cohort of adults with CF, CT-based CRS severity was not associated with OSA. Given the substantial prevalence of OSA observed, PSG screening should be considered irrespective of CRS severity.<\/jats:p>","DOI":"10.3390\/pathophysiology33010006","type":"journal-article","created":{"date-parts":[[2026,1,14]],"date-time":"2026-01-14T11:01:14Z","timestamp":1768388474000},"page":"6","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Paranasal Sinus CT and Polysomnographic Findings in Adults with Cystic Fibrosis: Implications for Obstructive Sleep Apnea"],"prefix":"10.3390","volume":"33","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1259-8911","authenticated-orcid":false,"given":"Matthias","family":"Welsner","sequence":"first","affiliation":[{"name":"Department of Pulmonary Medicine, University Hospital Essen\u2014Ruhrlandklinik, Adult Cystic Fibrosis Center, University of Duisburg-Essen, 45239 Essen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7907-6670","authenticated-orcid":false,"given":"Sarah","family":"Dietz-Terjung","sequence":"additional","affiliation":[{"name":"Department of Pulmonary Medicine, University Hospital Essen\u2014Ruhrlandklinik, Adult Cystic Fibrosis Center, University of Duisburg-Essen, 45239 Essen, Germany"},{"name":"Department of Sleep and Telemedicine, University Hospital Essen\u2014Ruhrlandklinik, University of Duisburg-Essen, 45141 Essen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Svenja","family":"Strassburg","sequence":"additional","affiliation":[{"name":"Department of Pulmonary Medicine, University Hospital Essen\u2014Ruhrlandklinik, Adult Cystic Fibrosis Center, University of Duisburg-Essen, 45239 Essen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4603-6602","authenticated-orcid":false,"given":"Dirk","family":"Westh\u00f6lter","sequence":"additional","affiliation":[{"name":"Department of Pulmonary Medicine, University Hospital Essen\u2014Ruhrlandklinik, Adult Cystic Fibrosis Center, University of Duisburg-Essen, 45239 Essen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sivagurunathan","family":"Sutharsan","sequence":"additional","affiliation":[{"name":"Department of Pulmonary Medicine, University Hospital Essen\u2014Ruhrlandklinik, Adult Cystic Fibrosis Center, University of Duisburg-Essen, 45239 Essen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christoph","family":"Sch\u00f6bel","sequence":"additional","affiliation":[{"name":"Department of Sleep and Telemedicine, University Hospital Essen\u2014Ruhrlandklinik, University of Duisburg-Essen, 45141 Essen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3546-1398","authenticated-orcid":false,"given":"Christian","family":"Taube","sequence":"additional","affiliation":[{"name":"Department of Pulmonary Medicine, University Hospital Essen\u2014Ruhrlandklinik, Adult Cystic Fibrosis Center, University of Duisburg-Essen, 45239 Essen, Germany"},{"name":"Department of Sleep and Telemedicine, University Hospital Essen\u2014Ruhrlandklinik, University of Duisburg-Essen, 45141 Essen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Florian","family":"Stehling","sequence":"additional","affiliation":[{"name":"Pediatric Pulmonology and Sleep Medicine, Cystic Fibrosis Center, Children\u2019s Hospital, University of Duisburg-Essen, 45141 Essen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cornelius","family":"K\u00fcrten","sequence":"additional","affiliation":[{"name":"Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Essen, University of Duisburg-Essen, 45141 Essen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9262-7289","authenticated-orcid":false,"given":"Cornelius","family":"Deuschl","sequence":"additional","affiliation":[{"name":"Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, University of Duisburg-Essen, 45141 Essen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5584-9824","authenticated-orcid":false,"given":"Michael","family":"Forsting","sequence":"additional","affiliation":[{"name":"Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, University of Duisburg-Essen, 45141 Essen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2997-0740","authenticated-orcid":false,"given":"Sebastian","family":"Zensen","sequence":"additional","affiliation":[{"name":"Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, University of Duisburg-Essen, 45141 Essen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4843-5911","authenticated-orcid":false,"given":"Johannes","family":"Haubold","sequence":"additional","affiliation":[{"name":"Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, University of Duisburg-Essen, 45141 Essen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6331-7679","authenticated-orcid":false,"given":"Benedikt M.","family":"Schaarschmidt","sequence":"additional","affiliation":[{"name":"Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, University of Duisburg-Essen, 45141 Essen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7455-8590","authenticated-orcid":false,"given":"Marcel","family":"Opitz","sequence":"additional","affiliation":[{"name":"Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, University of Duisburg-Essen, 45141 Essen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,1,14]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1859","DOI":"10.1001\/jama.2023.8120","article-title":"Cystic Fibrosis: A Review","volume":"329","author":"Ong","year":"2023","journal-title":"JAMA"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"65","DOI":"10.1590\/S1806-37132015000100009","article-title":"Chronic rhinosinusitis and nasal 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