{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T15:43:27Z","timestamp":1760111007814,"version":"build-2065373602"},"reference-count":29,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2024,6,16]],"date-time":"2024-06-16T00:00:00Z","timestamp":1718496000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003725","name":"National Research Foundation of Korea","doi-asserted-by":"publisher","award":["NRF-2022R1I1A1A01069183"],"award-info":[{"award-number":["NRF-2022R1I1A1A01069183"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JPM"],"abstract":"<jats:p>The beach chair position (BCP) is widely used in shoulder surgery; however, it frequently leads to hypotension. Hypotension in BCP is prevalent among older patients who are at risk of secondary complications such as ischemic injuries. Therefore, this prospective study aimed to investigate the association and predictive value of frailty, as assessed by ultrasound-measured quadriceps depth and questionnaire, in patients aged \u226565 years undergoing elective shoulder surgery under general anesthesia. A multivariable logistic regression analysis was performed to identify independent risk factors for hypotension in BCP under general anesthesia. Receiver operating characteristic curves were constructed to assess the predictive values of various parameters. The results indicated that a quadriceps depth &lt; 2.3 cm and BCP for an extended period significantly increased the risk of hypotension. The combined consideration of quadriceps depth &lt; 2.3 cm and frailty demonstrated markedly superior predictive power compared with each factor individually. In conclusion, the study findings facilitate the screening and identification of risk factors for older patients undergoing surgery in BCP, thereby enhancing perioperative management.<\/jats:p>","DOI":"10.3390\/jpm14060642","type":"journal-article","created":{"date-parts":[[2024,6,17]],"date-time":"2024-06-17T08:48:31Z","timestamp":1718614111000},"page":"642","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Predictive Value of Ultrasound-Measured Quadriceps Depth and Frailty Status for Hypotension in Older Patients Undergoing Reverse Total Shoulder Arthroplasty in the Beach Chair Position under General Anesthesia"],"prefix":"10.3390","volume":"14","author":[{"given":"Sang-Mee","family":"An","sequence":"first","affiliation":[{"name":"Department of Anesthesiology and Pain Medicine, College of Medicine, Ewha Womans University, Seoul 07804, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4255-8937","authenticated-orcid":false,"given":"Hyun Jung","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology and Pain Medicine, College of Medicine, Ewha Womans University, Seoul 07804, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1993-1687","authenticated-orcid":false,"given":"Jae Hee","family":"Woo","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology and Pain Medicine, College of Medicine, Ewha Womans University, Seoul 07804, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ji Seon","family":"Chae","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology and Pain Medicine, College of Medicine, Ewha Womans University, Seoul 07804, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sang-jin","family":"Shin","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, College of Medicine, Ewha Womans University, Seoul 07804, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,6,16]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"877","DOI":"10.1016\/j.jse.2020.07.032","article-title":"Primary Reverse Total Shoulder Arthroplasty in Patients Older than 80 Years: Clinical and Radiologic Outcome Measures","volume":"30","author":"Kriechling","year":"2021","journal-title":"J. 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Anesthesiol."}],"container-title":["Journal of Personalized Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2075-4426\/14\/6\/642\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T14:59:30Z","timestamp":1760108370000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2075-4426\/14\/6\/642"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,6,16]]},"references-count":29,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2024,6]]}},"alternative-id":["jpm14060642"],"URL":"https:\/\/doi.org\/10.3390\/jpm14060642","relation":{},"ISSN":["2075-4426"],"issn-type":[{"type":"electronic","value":"2075-4426"}],"subject":[],"published":{"date-parts":[[2024,6,16]]}}}