{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T11:36:55Z","timestamp":1792841815999,"version":"4.5.0"},"reference-count":36,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2026,3,22]],"date-time":"2026-03-22T00:00:00Z","timestamp":1774137600000},"content-version":"vor","delay-in-days":80,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Asian J Endoscop Surgery"],"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Preoperative risk assessment is particularly crucial in elderly patients, who often present with comorbidities and organ dysfunction. We investigated the utility of Dementia Assessment Sheet for Community\u2010based Integrated Care System 21\u2010items (DASC\u201021) in predicting postoperative pneumonia in elderly patients undergoing esophagectomy for esophageal cancer.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Patients and Methods<\/jats:title>\n                    <jats:p>We retrospectively analyzed 60 patients aged \u2265\u200975\u2009years who underwent esophagectomy for esophageal cancer between May 2019 and March 2025 at Wakayama Medical University Hospital. The DASC\u201021 assessment was conducted for all patients aged 75\u2009years or older who were admitted to our hospital before the esophagectomy.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Postoperative pneumonia classified as Clavien\u2010Dindo grade \u2265\u20092 occurred in 13 patients of all the 60 patients (21.7%). Receiver operating characteristic (ROC) curve analysis using postoperative pneumonia as the event showed that the optimal cutoff value of the DASC\u201021 score was 26 points. Fourteen elderly patients had DASC\u201021 high scores and 46 had low scores. Patients with high DASC\u201021 scores had significantly poorer performance status. The DASC\u201021 high score group had a higher incidence of postoperative pneumonia than the DASC\u201021 low score group (50.0% vs. 13.0%;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.003). Furthermore, the DASC\u201021 high score group tended to have a higher transferring rate to other hospitals than the low score group (42.9% vs. 19.6%;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.078). Older age (\u2265\u200978\u2009years old), poor performance status, comorbidity of diabetes mellitus, and DASC\u201021 high score were suggested as risk factors for postoperative pneumonia by univariate analysis.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The preoperative DASC\u201021 high score was significantly associated with the occurrence of postoperative pneumonia in elderly patients undergoing esophagectomy for esophageal cancer.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/ases.70279","type":"journal-article","created":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T01:41:52Z","timestamp":1774230112000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Novel Prediction of Postoperative Pneumonia in Elderly Patients With Esophageal Cancer Undergoing Minimally Invasive Esophagectomy Using Dementia Assessment Sheet for Community\u2010Based Integrated Care System 21\u2010Items (\n                    <scp>DASC<\/scp>\n                    \u201021)"],"prefix":"10.1111","volume":"19","author":[{"given":"Tomoki","family":"Nakai","sequence":"first","affiliation":[{"name":"Second Department of Surgery, School of Medicine Wakayama Medical University  Wakayama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junya","family":"Kitadani","sequence":"additional","affiliation":[{"name":"Second Department of Surgery, School of Medicine Wakayama Medical University  Wakayama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-3566-1726","authenticated-orcid":false,"given":"Keiji","family":"Hayata","sequence":"additional","affiliation":[{"name":"Second Department of Surgery, School of Medicine Wakayama Medical University  Wakayama 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