{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,23]],"date-time":"2026-07-23T20:16:58Z","timestamp":1784837818711,"version":"3.55.0"},"reference-count":48,"publisher":"Sociedade Brasileira de Cardiologia","issue":"3","license":[{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"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  Fundamento  O aumento da rigidez a\u00f3rtica em pacientes com v\u00e1lvula a\u00f3rtica bic\u00faspide (VAB) pode afetar significativamente a morbidade e a mortalidade.  Objetivo  Nosso objetivo foi avaliar as propriedades de elasticidade da aorta e a usabilidade da nova t\u00e9cnica, medindo a velocidade da onda de pulso (VOP) com um dispositivo de ecocardiografia transtor\u00e1cica em pacientes com VAB.  M\u00e9todos  Cinquenta pacientes com VAB e 50 crian\u00e7as saud\u00e1veis com caracter\u00edsticas demogr\u00e1ficas semelhantes foram inclu\u00eddos neste estudo. Os pacientes com VAB foram agrupados de acordo com a morfologia das c\u00faspides fundidas. A fun\u00e7\u00e3o valvar era normal ou quase normal nos pacientes com VAB inclu\u00eddos no estudo. A fun\u00e7\u00e3o ventricular esquerda, o di\u00e2metro da raiz da aorta e as caracter\u00edsticas de elasticidade da aorta de todos os pacientes foram avaliadas. Um valor p &lt;0,05 foi considerado significativo.  Resultados  A VOP foi significativamente maior no grupo com VAB (p=0,000). Os par\u00e2metros de elasticidade a\u00f3rtica obtidos a partir dos di\u00e2metros da aorta ascendente foram semelhantes entre os grupos. Os di\u00e2metros da aorta ascendente foram significativamente maiores no grupo com VAB. Houve correla\u00e7\u00e3o entre a VOP, o di\u00e2metro da aorta ascendente, a vena contracta na regurgita\u00e7\u00e3o a\u00f3rtica e a velocidade de pico a\u00f3rtica. Os valores alfa de confiabilidade interobservador e intraobservador da VOP foram de 0,92 e 0,84, respectivamente.  Conclus\u00f5es  No grupo pedi\u00e1trico com VAB e fun\u00e7\u00e3o valvar normal ou quase normal, embora os par\u00e2metros de elasticidade a\u00f3rtica fossem normais com as medidas convencionais baseadas nos di\u00e2metros da aorta ascendente, as medidas de VOP com o mesmo dispositivo foram significativamente maiores, sem a necessidade de um aparelho ou programa adicional, e a rigidez a\u00f3rtica aumentou no grupo com VAB. A medi\u00e7\u00e3o da VOP por ecocardiografia \u00e9 uma t\u00e9cnica confi\u00e1vel e reprodut\u00edvel.<\/jats:p>","DOI":"10.36660\/abc.20250560","type":"journal-article","created":{"date-parts":[[2026,7,23]],"date-time":"2026-07-23T19:56:22Z","timestamp":1784836582000},"source":"Crossref","is-referenced-by-count":0,"title":["Avalia\u00e7\u00e3o da Velocidade da Onda de Pulso por Meio de Ecocardiografia Transtor\u00e1cica em Crian\u00e7as com V\u00e1lvula A\u00f3rtica Bic\u00faspide"],"prefix":"10.36660","volume":"123","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3784-7849","authenticated-orcid":false,"given":"Kerem","family":"Erta\u015f","sequence":"first","affiliation":[{"name":"Diyarbakir Children\u2019s Hospital,  Turquia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4415-4437","authenticated-orcid":false,"given":"\u00d6zlem","family":"G\u00fcl","sequence":"additional","affiliation":[{"name":"Diyarbakir Children\u2019s 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