{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,28]],"date-time":"2026-02-28T04:33:57Z","timestamp":1772253237621,"version":"3.50.1"},"reference-count":25,"publisher":"Sociedade Brasileira de Cardiologia","issue":"5","license":[{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"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  Na miocardiopatia hipertr\u00f3fica (MCH), \u00e9 conhecida a associa\u00e7\u00e3o entre a taquicardia ventricular n\u00e3o sustentada (TVNS) e o risco de morte s\u00fabita.  Objetivos  Avaliar a incid\u00eancia de TVNS pelo Holter 24 h em pacientes com MCH em coorte brasileira e correlacionar com suas caracter\u00edsticas e evolu\u00e7\u00e3o.  M\u00e9todos  No presente estudo retrospectivo de pacientes com MCH, avaliamos pelo Holter 24 h a presen\u00e7a de TVNS longas e r\u00e1pidas (\u2265 10 batimentos e frequ\u00eancia \u2265 130 bpm) ou a presen\u00e7a de pelo menos 3 epis\u00f3dios de TVNS com \u2265 3 batimentos e frequ\u00eancia \u2265 120 bpm. As vari\u00e1veis cont\u00ednuas foram apresentadas em m\u00e9dias aritm\u00e9ticas e desvio padr\u00e3o e as vari\u00e1veis categ\u00f3ricas em frequ\u00eancias absolutas e relativas. Foi considerado significativo p &lt; 0,05.  Resultados  Inclu\u00edmos 763 pacientes, 53,5% do sexo masculino. A idade m\u00e9dia foi de 52,6 anos \u00b1 16,7. A presen\u00e7a de TVNS foi evidenciada em 10% (76 pacientes). Destes, apenas 11 (1,4%) apresentaram TVNS \u2265 10 batimentos e frequ\u00eancia \u2265 130 bpm. N\u00e3o houve diferen\u00e7a na rela\u00e7\u00e3o da TVNS com sexo, septo &gt; 30 mm, idade \u2265 40 anos, dose de betabloqueador e presen\u00e7a de fibrila\u00e7\u00e3o atrial. No grupo com TVNS a mortalidade por todas as causas ao longo de 15 anos foi observada em 26,3% versus 15,9% no grupo sem TVNS (p = 0,021).  Conclus\u00f5es  A presen\u00e7a de TVNS no Holter 24 h ocorreu em 10 % dos pacientes. As TVNS longas e r\u00e1pidas foram raras. A presen\u00e7a de TVNS foi associada \u00e0 maior mortalidade geral ao longo do seguimento.<\/jats:p>","DOI":"10.36660\/abc.20240399","type":"journal-article","created":{"date-parts":[[2025,5,26]],"date-time":"2025-05-26T15:54:34Z","timestamp":1748274874000},"source":"Crossref","is-referenced-by-count":0,"title":["Valor Progn\u00f3stico da Taquicardia Ventricular n\u00e3o Sustentada na Miocardiopatia Hipertr\u00f3fica em Coorte Brasileira: Compara\u00e7\u00e3o com Literatura Mundial"],"prefix":"10.36660","volume":"122","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5431-218X","authenticated-orcid":false,"given":"Diego Ara\u00fajo","family":"Silva","sequence":"first","affiliation":[{"name":"Faculdade Santa Marcelina Curso de Medicina,  Brasil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Edmundo","family":"Arteaga-Fernandez","sequence":"additional","affiliation":[{"name":"Universidade de S\u00e3o Paulo,  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