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Primary outcomes included hemorrhage complications within 14\u00a0days post-procedure, secondary outcomes included ER visits and rehospitalizations.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>This study included 2,512 pediatric patients; 426 in the study group and 2,086 in the control group. The study group exhibited significantly higher proportions of post-operative hemorrhages (6.8% vs. 3.4%, p\u2009&lt;\u20090.001), increased ER visits (18% vs 9.6%, p\u2009&lt;\u20090.001), elevated readmission rates (12% vs 5.7%, p\u2009&lt;\u20090.001), and longer postoperative hospital stay (median 2.00\u00a0day [IQR 1.00, 2.00] vs 1.00\u00a0day [IQR 0.00, 1.00], p\u2009&lt;\u20090.001) compared to the control group. Multivariate analyses controlled for age, sex, and operation type showed post-operative fever correlated significantly with hemorrhage, readmissions, and ER visits (OR 3.23, p\u2009&lt;\u20090.001, OR 2.93, p\u2009&lt;\u20090.001, OR 2.36, p\u2009&lt;\u20090.001 respectively).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Postoperative fever independently correlates with an increased risk of hemorrhage and readmission following tonsillectomy or adenotonsillectomy. These findings suggest that fever may serve as an early marker for complications, reinforcing its clinical importance in guiding postoperative care strategies and caregiver education.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of evidence<\/jats:title>\n                    <jats:p>3.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00405-026-10094-2","type":"journal-article","created":{"date-parts":[[2026,3,5]],"date-time":"2026-03-05T22:18:31Z","timestamp":1772749111000},"page":"2569-2574","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Association of post-tonsillectomy fever with postoperative complications"],"prefix":"10.1007","volume":"283","author":[{"given":"Noa","family":"Sheffer","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Itai","family":"Pansky","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Itai","family":"hazan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Oded","family":"cohen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Inbal Golan-","family":"Tripto","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel","family":"Yafit","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nir","family":"Amitai","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3286-9248","authenticated-orcid":false,"given":"Oren","family":"Ziv","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,3,5]]},"reference":[{"key":"10094_CR1","unstructured":"Cullen KA, Hall MJ, Golosinskiy A. 2009 National Health Statistics Reports Number 11 January 28, 2009-Revisied September 4, 2006"},{"key":"10094_CR2","unstructured":"Atlas Project D. 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