{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,21]],"date-time":"2026-02-21T06:33:52Z","timestamp":1771655632243,"version":"3.50.1"},"reference-count":29,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2021,1,24]],"date-time":"2021-01-24T00:00:00Z","timestamp":1611446400000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2021,1,24]],"date-time":"2021-01-24T00:00:00Z","timestamp":1611446400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100006190","name":"Research and Development","doi-asserted-by":"publisher","award":["2014GGH218014"],"award-info":[{"award-number":["2014GGH218014"]}],"id":[{"id":"10.13039\/100006190","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Thoracic Cancer"],"published-print":{"date-parts":[[2021,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Few studies have been conducted on the relationship between chronic periodontitis and postoperative pneumonia (POP) in patients with lung and esophageal cancer. Furthermore, it remains controversial as to whether improving the periodontal condition of patients with lung and esophageal cancer before surgery reduces the incidence of POP. This retrospective study was conducted to assess the effects of periodontal therapy in patients with lung and esophageal cancer to prevent POP.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A total of 265 patients with lung or esophageal cancer complicated with chronic periodontitis who underwent open thoracotomy between July 2015 and June 2019 were selected and given the choice of being in the experimental or control group. A total of 141 participants in the experimental group received periodontal therapy, and 124 participants in the control group did not receive periodontal therapy. All clinical data of participants in both groups were retrospectively studied to determine the incidence of POP on the 30th day after discharge from hospital.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Eight patients in the experimental and six in the control group, respectively, were excluded from the study. It was found that four of the 133 patients suffered from POP in the experimental group (incidence: 3.01%). A total of 18 of 118 patients in the control group had a pulmonary infection (incidence: 15.25%). POP incidence in the experimental group was significantly lower than that in the control group, and in the level analysis of different types of periodontitis, surgical methods, and diseases (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.05).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Periodontal treatment is associated with a lower incidence of POP following lung and esophageal cancer surgery. Improving the periodontal condition of patients helps prevent POP. The presence of periodontitis is an important predisposing factor for POP in patients after open thoracotomy. Periodontal examination and therapy are recommended before the surgical treatment of lung or esophageal cancer.<\/jats:p><\/jats:sec>","DOI":"10.1111\/1759-7714.13828","type":"journal-article","created":{"date-parts":[[2021,1,25]],"date-time":"2021-01-25T06:30:40Z","timestamp":1611556240000},"page":"768-774","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Effects of periodontitis on postoperative pneumonia in patients with lung and esophageal cancer"],"prefix":"10.1111","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1714-0857","authenticated-orcid":false,"given":"Chunling","family":"Jia","sequence":"first","affiliation":[{"name":"Department of Oral Medicine Qilu Hospital of Shandong University  Jinan China"},{"name":"Institute of Stomatology Shandong University  Jinan China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yijun","family":"Luan","sequence":"additional","affiliation":[{"name":"Department of Oral Medicine Qilu Hospital of Shandong University  Jinan China"},{"name":"Institute of Stomatology Shandong University  Jinan China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xibo","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Thoracic Surgery Qilu Hospital of Shandong University  Jinan China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaoying","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Geriatrics Qilu Hospital of Shandong University  Jinan China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cuirong","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Stomatology Qilu Hospital of Shandong University  Jinan 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