{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,24]],"date-time":"2026-04-24T01:04:33Z","timestamp":1776992673939,"version":"3.51.4"},"reference-count":33,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2025,7,9]],"date-time":"2025-07-09T00:00:00Z","timestamp":1752019200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"University of Iowa, Department of Anesthesiology","award":["UM1TR004403"],"award-info":[{"award-number":["UM1TR004403"]}]},{"name":"National Center for Advancing Translational Sciences of the National Institutes of Health","award":["UM1TR004403"],"award-info":[{"award-number":["UM1TR004403"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Background: Obstructive Sleep Apnea (OSA) is a common occurrence in the perioperative patient population but is often undiagnosed. Point-of-Care Ultrasound (POCUS) has emerged as a promising tool for perioperative assessment; however, its effectiveness in detecting the presence or severity of OSA needs to be evaluated. Objective: We assessed the ability of airway POCUS as a screening and severity evaluation tool for OSA by examining its correlation with STOP-BANG scores and the Apnea\u2013Hypopnea Index (AHI). Design: Cross-sectional observational study. Setting: A single-center study in a tertiary care hospital between June 2020 to May 2021. Patients: Adult patients aged 18\u201365 with prior Polysomnography (PSG) for OSA workup were screened. Interventions: The participants completed the STOP-BANG questionnaire and subsequently underwent POCUS examinations, either pre- or post-surgery. Ten different POCUS views previously used for evaluating OSA were acquired in a predefined sequence, with subsequent measurements of airway parameters. Outcome measures: Generalized linear modeling was used to explore and assess the relationships between the measured parameters, STOP-BANG, and AHI scores (modeled continuously and categorized into risk levels of STOP-BANG and AHI). Results: A total of 260 patients were screened, of which 142 were enrolled and 127 completed the scanning studies. The median AHI was 16.71, while the STOP-BANG scores were mostly between 5 and 6, indicating a moderate-to-high OSA risk in the study population. Notably, only neck circumference was significantly associated with AHI severity (p = 0.012), whereas none of the other POCUS measures were. Among the POCUS measures, significant associations with STOP-BANG scores were observed for the Tongue Cross-Sectional Area (T-CSA) (p = 0.002), Retro-Palatal Diameter (RPD) (p = 0.034), Distance Between Lingual Arteries (DLA) (p = 0.034), and Geniohyoid Muscle Thickness (GMT) (p = 0.040). Conclusions: Neck circumference is a more reliable predictor of OSA severity (AHI) compared to other POCUS measurements. Many of the POCUS measures had a good correlation with the STOP-BANG scores, highlighting the utility of POCUS as a screening tool for OSA rather than as a severity evaluation tool.<\/jats:p>","DOI":"10.3390\/jcm14144858","type":"journal-article","created":{"date-parts":[[2025,7,11]],"date-time":"2025-07-11T10:26:53Z","timestamp":1752229613000},"page":"4858","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Correlation of Airway POCUS Measures with Screening and Severity Evaluation Tools in Obstructive Sleep Apnea: An Exploratory Study"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9559-3846","authenticated-orcid":false,"given":"Sapna","family":"Ravindranath","sequence":"first","affiliation":[{"name":"Department of Anesthesia, Indiana University School of Medicine, Indianapolis, IN 46202, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6106-4687","authenticated-orcid":false,"given":"Yatish S.","family":"Ranganath","sequence":"additional","affiliation":[{"name":"Department of Anesthesia, Indiana University School of Medicine, Indianapolis, IN 46202, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ethan","family":"Lemke","sequence":"additional","affiliation":[{"name":"Department of Emergency Medicine, University of Michigan Health-West, Wyoming, MI 49519, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Matthew B","family":"Behrens","sequence":"additional","affiliation":[{"name":"Kent Hospital, Warwick, RI 02886, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8445-7619","authenticated-orcid":false,"given":"Anil A.","family":"Marian","sequence":"additional","affiliation":[{"name":"Department of Anesthesia, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hari","family":"Kalagara","sequence":"additional","affiliation":[{"name":"Department of Anesthesia, Mayo Clinic, Jacksonville, Fl 32224, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-3745-4253","authenticated-orcid":false,"given":"Nada","family":"Sadek","sequence":"additional","affiliation":[{"name":"Department of Anesthesia, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7783-9897","authenticated-orcid":false,"given":"Melinda S.","family":"Seering","sequence":"additional","affiliation":[{"name":"Department of Anesthesia, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1832-0486","authenticated-orcid":false,"given":"Linder","family":"Wendt","sequence":"additional","affiliation":[{"name":"Institute for Clinical and Translational Science, University of Iowa, Iowa City, IA 52242, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5041-0708","authenticated-orcid":false,"given":"Patrick","family":"Ten Eyck","sequence":"additional","affiliation":[{"name":"Institute for Clinical and Translational Science, University of Iowa, Iowa City, IA 52242, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1132-9066","authenticated-orcid":false,"given":"Rakesh V.","family":"Sondekoppam","sequence":"additional","affiliation":[{"name":"Department of Anesthesia, Pain and Perioperative Medicine, Stanford University, Palo Alto, CA 94304, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,7,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2352","DOI":"10.1056\/NEJMp1302941","article-title":"A rude awakening\u2014The perioperative sleep apnea epidemic","volume":"368","author":"Memtsoudis","year":"2013","journal-title":"N. 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