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This study aimed to evaluate potential differences between sexes in children operated with pyeloplasty for PUJO in terms of presentation, surgery, and long-term results.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Methods<\/jats:title>\n                <jats:p>Data was retrospectively collected from all children operated on with pyeloplasty between January 2002 and December 2020. Data contained several variables covering presentation, surgery, and long-term results.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>In total, 194 patients were included of which 126 (64.9%) were boys. There were no significant differences in prenatal findings, pelvic dilation on ultrasound, function of the affected kidney, surgical method, obstruction type, resolution of hydronephrosis, or improvement of function. Boys presented with pain more often than girls (47.4 vs 25.0%, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.01) while girls were more prone to infections preoperatively (17.2 vs 7.0%, <jats:italic>p<\/jats:italic>\u2009=\u20090.04). All nine patients requiring reoperation were boys (<jats:italic>p<\/jats:italic>\u2009=\u20090.03).<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusion<\/jats:title>\n                <jats:p>Girls with UPJO seem to experience infections as presenting symptoms more often than boys, while boys significantly more often present with pain. There is also a higher percentage of boys needing reoperation.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1007\/s00383-023-05543-6","type":"journal-article","created":{"date-parts":[[2023,9,8]],"date-time":"2023-09-08T11:02:24Z","timestamp":1694170944000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Sex differences in children operated with pyeloplasty for pelvoureteric junction obstruction"],"prefix":"10.1007","volume":"39","author":[{"given":"Linnea","family":"H\u00f6gberg","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sanni","family":"V\u00e4rel\u00e4","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Magnus","family":"Anderberg","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Martin","family":"Sal\u00f6","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2023,9,8]]},"reference":[{"issue":"5\u20136","key":"5543_CR1","doi-asserted-by":"publisher","first-page":"293","DOI":"10.3109\/15513815.2014.959678","volume":"33","author":"MM Rodriguez","year":"2014","unstructured":"Rodriguez MM (2014) Congenital anomalies of the kidney and the urinary tract (CAKUT). 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