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This study aims to identify the incidence and risk factors of PPCs following major emergency abdominal surgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This is a single-center observational study including patients undergoing major emergency abdominal surgery between January 1, 2021, and December 31, 2023, collecting pre-, intra-, and postoperative variables. The primary outcome was the occurrence of PPCs, and the secondary outcomes were risk factors for PPCs and 30-day mortality rates following PPCs. Multivariable logistic regression was used to identify perioperative risk factors associated with PPCs. The same analysis was used on a subgroup of patients with \u2018severe\u2019 PPCs.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Of 1080 patients included in the study, 431 (39.9%) had at least one PPC, and 150 (13.9%) had at least one \u2018severe\u2019 PPC. Multivariable logistic regression identified several risk factors for developing PPCs: an increased ARISCAT score, a history of pulmonary disease, hypertension, a history of cerebral disease, increased Clinical Frailty Scale, preoperative admission to the intensive care unit, a CDC grade IV contaminated wound, intraoperative findings of perforated stomach or duodenal ulcer, need for subsequent reoperations, and protracted postoperative ileus. Patients with PPCs had a 30-day mortality rate of 21.0%, while those with \u2018severe\u2019 PPCs had a 30-day mortality rate of 46.3%.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Several independent risk factors, beyond those already established, were associated with an increased risk of PPCs.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00540-026-03692-1","type":"journal-article","created":{"date-parts":[[2026,2,26]],"date-time":"2026-02-26T12:47:25Z","timestamp":1772110045000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Postoperative pulmonary complications following major emergency abdominal surgery: incidence, risk factors, and outcomes\u2014an observational study"],"prefix":"10.1007","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7388-640X","authenticated-orcid":false,"given":"Andreas Werner","family":"N\u00e6rum","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1544-8927","authenticated-orcid":false,"given":"Dunja","family":"Kokotovic","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8367-7831","authenticated-orcid":false,"given":"Jakob","family":"Burcharth","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,2,26]]},"reference":[{"issue":"3","key":"3692_CR1","doi-asserted-by":"publisher","first-page":"368","DOI":"10.1093\/bja\/aes165","volume":"109","author":"DI Saunders","year":"2012","unstructured":"Saunders DI, Murray D, Pichel AC, Varley S, Peden CJ. 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