{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T11:55:25Z","timestamp":1790769325727,"version":"4.1.0"},"reference-count":8,"publisher":"Cambridge University Press (CUP)","license":[{"start":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T00:00:00Z","timestamp":1790726400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":["cambridge.org"],"crossmark-restriction":true},"short-container-title":["Cardiol Young"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>A boy with heart failure and mechanical pulsus alternans was treated with enalapril malate and carvedilol; however, left ventricular contraction did not improve. After treatment with ivabradine, the pulsus alternans disappeared, and left ventricle contraction improved. Thorough evaluation revealed an abdominal paraganglioma producing noradrenaline, and excision of the tumor normalised the left ventricle contraction. Catecholamine-induced cardiomyopathy caused by paragangliomas is an extremely rare but important differential diagnosis of dilated cardiomyopathy. Thus, ivabradine is a good candidate for the treatment of heart failure, even in the presence of catecholamine-producing tumours.<\/jats:p>","DOI":"10.1017\/s1047951126124184","type":"journal-article","created":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T11:02:44Z","timestamp":1790766164000},"page":"1-3","update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":0,"title":["Effectiveness of ivabradine in a paediatric case of cardiomyopathy secondary to a noradrenaline-producing paraganglioma"],"prefix":"10.1017","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-0780-4529","authenticated-orcid":false,"given":"Yu","family":"Tanaka","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02xa0x739","id-type":"ROR","asserted-by":"publisher"}],"name":"Aichi Children\u2019s Health and Medical Center"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9206-4033","authenticated-orcid":false,"given":"Kiyotaka","family":"Go","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02xa0x739","id-type":"ROR","asserted-by":"publisher"}],"name":"Aichi Children\u2019s Health and Medical Center"},{"name":"Nagoya University Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shuichiro","family":"Yoshida","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02xa0x739","id-type":"ROR","asserted-by":"publisher"}],"name":"Aichi Children\u2019s Health and Medical Center"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2026,9,30]]},"reference":[{"key":"S1047951126124184_ref3","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/ehaa1012"},{"key":"S1047951126124184_ref8","first-page":"1","article-title":"Successful \u03b2-blocker introduction under intra-aortic balloon pumping and ivabradine in a patient with new-onset dilated cardiomyopathy and pulsus alternans: a case report","volume":"8","author":"Kashimura","year":"2024","journal-title":"Eur Heart J Case Rep"},{"key":"S1047951126124184_ref2","doi-asserted-by":"publisher","DOI":"10.31083\/j.rcm2204130"},{"key":"S1047951126124184_ref5","doi-asserted-by":"publisher","DOI":"10.1536\/ihj.21-355"},{"key":"S1047951126124184_ref4","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMc1817267"},{"key":"S1047951126124184_ref1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2017.07.725"},{"key":"S1047951126124184_ref6","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCRESAHA.122.321668"},{"key":"S1047951126124184_ref7","doi-asserted-by":"publisher","DOI":"10.1111\/1440-1681.12231"}],"container-title":["Cardiology in the Young"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S1047951126124184","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T11:02:44Z","timestamp":1790766164000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S1047951126124184\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9,30]]},"references-count":8,"alternative-id":["S1047951126124184"],"URL":"https:\/\/doi.org\/10.1017\/s1047951126124184","relation":{},"ISSN":["1047-9511","1467-1107"],"issn-type":[{"value":"1047-9511","type":"print"},{"value":"1467-1107","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,9,30]]},"assertion":[{"value":"\u00a9 The Author(s), 2026. Published by Cambridge University Press","name":"copyright","label":"Copyright","group":{"name":"copyright_and_licensing","label":"Copyright and Licensing"}}]}}