What is the definitive diagnostic test for myocarditis?

{{c1::Endomyocardial biopsy}}

What is the <u>definitive diagnostic test</u> for <b>myocarditis</b>?<br><br>{{c1::Endomyocardial biopsy}}

• - Consider in all patients with suspected myocarditis, especially in patients with fulminant myocarditis or if the results are expected to influence treatment

- The World Health Organisation/International Society and Federation of Cardiology (WHO/ISFC) definition specifies diagnosis by established histological (Dallas criteria), immunological, and immunohistochemical criteria

<ul class="condensed-hidden-step2" style="font-size: 16px; margin-block: 0px; margin-inline: 0px; padding-inline-start: 0px; caret-color: rgb(26, 28, 28); color: rgb(26, 28, 28); font-family: Lato, -apple-system, BlinkMacSystemFont, &quot;"><li class="condensed-hidden" style="margin: 4px 0px 4px 1em; padding: 0px; margin-block: 0px; margin-inline: 0px; padding-inline-start: 0px; line-height: 1.5em;">- Consider in all patients with suspected myocarditis, especially in patients with&nbsp;<span data-phrasegroup-id="hFWc3M0" data-type="bonus" class="api dictionary" data-content="PHA+QSByYXJlIGFuZCBsaWZlLXRocmVhdGVuaW5nIHR5cGUgb2YgbXlvY2FyZGl0aXMgY2hhcmFjdGVyaXplZCBieSBjYXJkaW9nZW5pYyBzaG9jaywgaGVtb2R5bmFtaWNhbGx5IHNpZ25pZmljYW50IGFycmh5dGhtaWFzIChlLmcuLCBoZWFydCBibG9jaywgdmVudHJpY3VsYXIgdGFjaHljYXJkaWEpLCBhbmQgbXVsdGlvcmdhbiBmYWlsdXJlLiBNYW5hZ2VtZW50IGluY2x1ZGVzIHRyZWF0bWVudCBvZiB0aGUgdW5kZXJseWluZyBjYXVzZSAoZS5nLiwgaW5mZWN0aW9ucywgY29ubmVjdGl2ZSB0aXNzdWUgZGlzZWFzZXMpLCBtZWNoYW5pY2FsIHZlbnRpbGF0aW9uLCBjaXJjdWxhdG9yeSBzdXBwb3J0IChlLmcuLCBpbm90cm9wZXMsIGV4dHJhY29ycG9yZWFsIG1lbWJyYW5lIG94eWdlbmF0aW9uLCB2ZW50cmljdWxhciBhc3Npc3QgZGV2aWNlcyksIGFuZCwgaW4gc2VsZWN0ZWQgY2FzZXMsIGhlYXJ0IHRyYW5zcGxhbnRhdGlvbi48L3A+" id="Ld8e387253cc26f04d1d442c0cdb0f8e0" data-source="Ld8e387253cc26f04d1d442c0cdb0f8e0" style="cursor: pointer; text-decoration: underline; text-decoration-color: var(--color-border-primary);">fulminant myocarditis</span><span data-phrasegroup-id="hFWc3M0" data-type="bonus" class="api dictionary" data-content="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" data-source="Ld8e387253cc26f04d1d442c0cdb0f8e0" style="cursor: pointer; text-decoration-color: var(--color-border-primary);">&nbsp;or i</span>f the results are expected to influence treatment</li></ul><br>- The World Health Organisation/International Society and Federation of Cardiology (WHO/ISFC) definition specifies diagnosis by established histological (Dallas criteria), immunological, and immunohistochemical criteria

Clinical manifestations and diagnosis of myocarditis in adults - UpToDate - Accessed 23 October 2024
Myocarditis - AMBOSS - Accessed 23 October 2024

Clinical manifestations and diagnosis of myocarditis in adults -&nbsp;<a href="https://www.uptodate.com/contents/clinical-manifestations-and-diagnosis-of-myocarditis-in-adults?search=myocarditis&amp;source=search_result&amp;selectedTitle=1~150&amp;usage_type=default&amp;display_rank=1#H1323859346">UpToDate</a>&nbsp;- Accessed 23 October 2024<br>Myocarditis -&nbsp;<a href="https://next.amboss.com/us/article/xS0Ebf#LYawpQ">AMBOSS</a>&nbsp;- Accessed 23 October 2024