{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,23]],"date-time":"2026-08-23T18:25:23Z","timestamp":1787509523003,"version":"build-2736575974"},"reference-count":21,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[2019,5,1]],"date-time":"2019-05-01T00:00:00Z","timestamp":1556668800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["World J Pediatr Congenit Heart Surg"],"published-print":{"date-parts":[[2019,5]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Mitral valve replacement (MVR) is the only option for infants with severe mitral valve disease that is not reparable; however, previously reported outcomes are not always favorable. Our institution has followed a tailored approach to sizing and positioning of mechanical valve prostheses in infants requiring MVR in order to obtain optimal outcomes.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>Outcomes for 22 infants \u226410 kg who have undergone MVR in Sydney, Australia, from 1998 to 2016, were analyzed. Patients were at a mean age of 6.8 \u00b1 4.1 months (range: 0.8-13.2 months) and a mean weight of 5.4 \u00b1 1.8 kg at the time of MVR. Most patients (81.8%) had undergone at least one previous cardiac surgical procedure prior to MVR, and 36.4% had undergone two previous procedures. Several surgical techniques were used to implant mechanical bileaflet prostheses.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>All patients received bileaflet mechanical prostheses, with 12 receiving mitral prostheses and 10 receiving inverted aortic prostheses. Surgical technique varied between patients with valves implanted intra-annularly (n = 6), supra-annularly (n = 11), or supra-annularly with a tilt (n = 5). After a mean follow-up period of 6.2 \u00b1 4.4 years, the survival rate was 100%. Six (27.3%) patients underwent redo MVR a mean of 102.2 \u00b1 10.7 months after initial MVR. Four (18.2%) patients required surgical reintervention for development of left ventricular outflow tract obstruction and three (13.6%) patients required permanent pacemaker placement during long-term follow-up.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>The tailored surgical strategy utilized for MVR in infants at our institution has resulted in reliable valve function and excellent survival. Although redo is inevitable due to somatic growth, the bileaflet mechanical prostheses used displayed appropriate durability.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/2150135119837200","type":"journal-article","created":{"date-parts":[[2019,5,14]],"date-time":"2019-05-14T01:10:50Z","timestamp":1557796250000},"page":"304-312","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":10,"title":["Patient-Specific Approach to Mitral Valve Replacement in Infants Weighing 10 kilograms or less"],"prefix":"10.1177","volume":"10","author":[{"given":"Kathryn","family":"Mater","sequence":"first","affiliation":[{"name":"Faculty of Medicine, The University of New South Wales, Sydney, New South Wales, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Julian","family":"Ayer","sequence":"additional","affiliation":[{"name":"Heart Centre for Children, Children\u2019s Hospital at Westmead, Westmead, New South Wales, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ian","family":"Nicholson","sequence":"additional","affiliation":[{"name":"Heart Centre for Children, Children\u2019s Hospital at Westmead, Westmead, New South Wales, Australia"},{"name":"Department of Cardiothoracic Surgery, Westmead Hospital, Westmead, New South Wales, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David","family":"Winlaw","sequence":"additional","affiliation":[{"name":"Heart Centre for Children, Children\u2019s Hospital at Westmead, Westmead, New South Wales, Australia"},{"name":"Faculty of Medicine, School of Child and Adolescent Health, University of Sydney, Sydney, New South Wales, Australia *Medical student; currently pursuing MBBS"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Richard","family":"Chard","sequence":"additional","affiliation":[{"name":"Heart Centre for Children, Children\u2019s Hospital at Westmead, Westmead, New South Wales, Australia"},{"name":"Department of Cardiothoracic Surgery, Westmead Hospital, Westmead, New South Wales, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yishay","family":"Orr","sequence":"additional","affiliation":[{"name":"Heart Centre for Children, Children\u2019s Hospital at Westmead, Westmead, New South Wales, Australia"},{"name":"Department of Cardiothoracic Surgery, Westmead Hospital, Westmead, New South Wales, Australia"},{"name":"Faculty of Medicine, School of Child and Adolescent Health, University of Sydney, Sydney, New South Wales, Australia *Medical student; currently pursuing MBBS"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2019,5,13]]},"reference":[{"issue":"1","key":"bibr1-2150135119837200","first-page":"25","volume":"12","author":"Erez E","year":"2003","journal-title":"J Heart Valve Dis"},{"key":"bibr2-2150135119837200","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-5223(19)35475-3"},{"key":"bibr3-2150135119837200","doi-asserted-by":"publisher","DOI":"10.4103\/0974-2069.93704"},{"key":"bibr4-2150135119837200","doi-asserted-by":"publisher","DOI":"10.1016\/j.jtcvs.2007.12.076"},{"key":"bibr5-2150135119837200","doi-asserted-by":"publisher","DOI":"10.1016\/j.athoracsur.2014.09.035"},{"key":"bibr6-2150135119837200","doi-asserted-by":"publisher","DOI":"10.1016\/j.jtcvs.2013.10.059"},{"key":"bibr7-2150135119837200","doi-asserted-by":"publisher","DOI":"10.1016\/j.jtcvs.2015.06.019"},{"key":"bibr8-2150135119837200","doi-asserted-by":"publisher","DOI":"10.1093\/icvts\/ivx114"},{"key":"bibr9-2150135119837200","doi-asserted-by":"publisher","DOI":"10.1016\/j.jtcvs.2009.10.038"},{"issue":"1","key":"bibr10-2150135119837200","first-page":"II174","volume":"108","author":"Raghuveer G","year":"2003","journal-title":"Circulation"},{"key":"bibr11-2150135119837200","doi-asserted-by":"publisher","DOI":"10.1016\/j.jtcvs.2004.07.024"},{"key":"bibr12-2150135119837200","doi-asserted-by":"publisher","DOI":"10.1016\/j.athoracsur.2010.06.121"},{"key":"bibr13-2150135119837200","doi-asserted-by":"publisher","DOI":"10.1016\/j.athoracsur.2011.08.085"},{"key":"bibr14-2150135119837200","doi-asserted-by":"publisher","DOI":"10.1016\/j.jtcvs.2017.09.091"},{"key":"bibr15-2150135119837200","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejcts.2006.01.045"},{"key":"bibr16-2150135119837200","doi-asserted-by":"publisher","DOI":"10.1016\/j.jtcvs.2014.09.067"},{"key":"bibr17-2150135119837200","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCINTERVENTIONS.118.007145"},{"key":"bibr18-2150135119837200","doi-asserted-by":"publisher","DOI":"10.1136\/hrt.2004.057877"},{"key":"bibr19-2150135119837200","doi-asserted-by":"publisher","DOI":"10.1016\/j.athoracsur.2011.06.023"},{"key":"bibr20-2150135119837200","doi-asserted-by":"publisher","DOI":"10.1016\/S0003-4975(02)04537-X"},{"key":"bibr21-2150135119837200","doi-asserted-by":"publisher","DOI":"10.1067\/mtc.2001.111643"}],"container-title":["World Journal for Pediatric and Congenital Heart Surgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/2150135119837200","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/2150135119837200","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/2150135119837200","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T23:22:18Z","timestamp":1777591338000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/2150135119837200"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,5]]},"references-count":21,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2019,5]]}},"alternative-id":["10.1177\/2150135119837200"],"URL":"https:\/\/doi.org\/10.1177\/2150135119837200","relation":{},"ISSN":["2150-1351","2150-136X"],"issn-type":[{"value":"2150-1351","type":"print"},{"value":"2150-136X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,5]]}}}