{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,26]],"date-time":"2026-02-26T17:59:27Z","timestamp":1772128767666,"version":"3.50.1"},"reference-count":14,"publisher":"Springer Science and Business Media LLC","issue":"4","license":[{"start":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T00:00:00Z","timestamp":1753833600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T00:00:00Z","timestamp":1753833600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"DOI":"10.13039\/501100009450","name":"Pontifical Bolivarian University","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100009450","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Pediatr Cardiol"],"published-print":{"date-parts":[[2026,4]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Mitral and tricuspid valve replacement options have traditionally been limited to mechanical valves, bioprostheses, and the mitral Ross procedure. In recent years, the Melody valve (Medtronic, Minneapolis, MN) has emerged as a viable alternative for infants and young children. We present four patients under two years of age who underwent surgical implantation of a modified Melody valve 22 mm in the atrioventricular position. The valve was placed in the mitral position in three patients and the tricuspid position in one. The procedure was performed with palliative intent in all patients, as no alternative surgical options were available. At the time of valve implantation, two patients were supported with venoarterial extracorporeal membrane oxygenation. At the time of this report, two patients remain alive, with a maximum follow-up of three years in one case following valve implantation. We describe the experience of using a modified Melody valve in the tricuspid or mitral position with palliative intent in four patients, supporting its viability as an option in children under two years of age with limited therapeutic alternatives.<\/jats:p>","DOI":"10.1007\/s00246-025-03972-9","type":"journal-article","created":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T06:12:14Z","timestamp":1753855934000},"page":"1811-1817","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Modified Melody Valve Surgical Implantation in Atrioventricular Position in Four Children Under Two Years of Age"],"prefix":"10.1007","volume":"47","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0867-4793","authenticated-orcid":false,"given":"Andr\u00e9s David","family":"Aranzazu-Ceballos","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luis Horacio","family":"Diaz","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rafael Correa","family":"Vel\u00e1squez","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alberto Alejandro","family":"Quintero","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rafael Lince","family":"Varela","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Guillermo Jos\u00e9","family":"Aristizabal","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2025,7,30]]},"reference":[{"key":"3972_CR1","doi-asserted-by":"publisher","first-page":"1089","DOI":"10.1016\/S0735-1097(97)00017-X","volume":"29","author":"I Adatia","year":"1997","unstructured":"Adatia I, Moore PM, Jonas RA, Colan SD, Lock JE, Keane JF (1997) Clinical course and hemodynamic observations after supraannular mitral valve replacement in infants and children. 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