{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,28]],"date-time":"2026-02-28T04:33:51Z","timestamp":1772253231253,"version":"3.50.1"},"reference-count":10,"publisher":"Sociedade Brasileira de Cardiologia","issue":"3","license":[{"start":{"date-parts":[[2024,1,1]],"date-time":"2024-01-01T00:00:00Z","timestamp":1704067200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2024,1,1]],"date-time":"2024-01-01T00:00:00Z","timestamp":1704067200000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2024,1,1]],"date-time":"2024-01-01T00:00:00Z","timestamp":1704067200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Arq. Bras. Cardiol."],"abstract":"<jats:p>Resumo Neoplasias card\u00edacas s\u00e3o raras, tendo como principal representante o mixoma atrial (MA), que corresponde a cerca de metade de todos os casos. O MA tem incid\u00eancia estimada entre 0.001% e 0.3% na popula\u00e7\u00e3o em geral, no entanto apenas aproximadamente 0,06% desses cursam com eventos emb\u00f3licos coronarianos. Homem de 33 anos, tabagista, admitido com quadro de precordialgia intensa e irradia\u00e7\u00e3o para membro superior esquerdo com dura\u00e7\u00e3o de uma hora. O eletrocardiograma evidenciou eleva\u00e7\u00e3o de segmento ST nas deriva\u00e7\u00f5es D2, D3 e aVF troponina s\u00e9rica elevada, confirmando infarto com supra desnivelamento do segmento ST (IAMCSST). Foi realizada cineangiocoronariografia, a qual revelou oclus\u00e3o em ter\u00e7o proximal de art\u00e9ria coron\u00e1ria direita por trombo. Realizada tentativa de aspira\u00e7\u00e3o do trombo, sem sucesso, seguido por angioplastia prim\u00e1ria com bal\u00e3o sem coloca\u00e7\u00e3o de stent. Durante a investiga\u00e7\u00e3o do quadro, paciente realizou ecocardiograma transtor\u00e1cico o qual demonstrou massa homog\u00eanea de superf\u00edcie regular, de 5.2 cm x 2.3 cm, aderida ao septo interatrial, com lobula\u00e7\u00f5es de caracter\u00edsticas embolig\u00eanicas prolapsando para valva mitral e ventr\u00edculo esquerdo na di\u00e1stole, compat\u00edvel com MA. Foi realizada ressec\u00e7\u00e3o cir\u00fargica com paciente evoluindo assintom\u00e1tico, recebendo alta para seguimento ambulatorial. O caso relatado difere em idade e sexo do perfil epidemiol\u00f3gico t\u00edpico sendo um dos poucos descritos com acometimento da parede inferior apresentando a art\u00e9ria coron\u00e1ria direita como culpada. Este relato ratifica a import\u00e2ncia do diagn\u00f3stico diferencial frente \u00e0s apresenta\u00e7\u00f5es de IAMCSST em jovens.<\/jats:p>","DOI":"10.36660\/abc.20230538","type":"journal-article","created":{"date-parts":[[2024,6,4]],"date-time":"2024-06-04T13:51:14Z","timestamp":1717509074000},"source":"Crossref","is-referenced-by-count":1,"title":["Infarto com Supra-ST em Adulto Jovem: Rara Apresenta\u00e7\u00e3o de Mixoma Atrial Gigante"],"prefix":"10.36660","volume":"121","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0428-0305","authenticated-orcid":false,"given":"Rodrigo Rufino Pereira","family":"Silva","sequence":"first","affiliation":[{"name":"Pronto Socorro Cardiol\u00f3gico de Pernambuco Professor Luiz Tavares,  Brasil; Universidade de Pernambuco,  Brasil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-7431-5645","authenticated-orcid":false,"given":"Carolina Jer\u00f4nimo","family":"Magalh\u00e3es","sequence":"additional","affiliation":[{"name":"Pronto Socorro Cardiol\u00f3gico de Pernambuco Professor Luiz Tavares,  Brasil; 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