Myocarditis with ST Elevation and Elevated Cardiac Enzymes Misdiagnosed as an ST-elevation Myocardial Infarction

Clinical characteristics and outcomes of patients with myocarditis mimicking ST-segment elevation myocardial infarction

“…In our present study, LGE was detected in 13 patients, and the distribution of LGE was in accordance with aforementioned features of myocarditis. [3,7,14,18–20] Besides, an existence of edema on T2-weighted images and hyperemia on early contrast-enhanced images in line with a transmural or a subendocardial distribution were also in favor of the diagnosis of myocarditis, which confirmed a diagnosis of myocarditis in the remaining 5 patients, along with their medical history, existence of pericardial infusion, and positive viral serologic studies.…”

“…Although patients with myocarditis mimicking STEMI have been described in prior case reports, [16–20] a systematic study focused on the clinical features and prognosis of this distinct clinical entity is lacking, especially in the setting of Chinese patients. Therefore, in the present study, we aimed to document the clinical characteristics and outcomes of patients with suspected STEMI but eventually diagnosed with myocarditis indicated by CMR.…”

High‐Frequency QRS Analysis in Patients with Acute Myocardial Infarction: A Preliminary Study

“…34,35 To the best of our knowledge, the current study is the first to report quantitative assessment of HFQRS morphology in patients with AMI. 36 The study has several limitations. The observation that HFMI values are lower after revascularization and after additional 24h, compared to the values at ICCU admission, implies that this index may be a manifestation of ischemia.…”

“…The potential of HFQRS analysis to aid in ruling out acute myocardial ischemia in patients with chest pain was anecdotally demonstrated in the our patient with perimyocarditis in whom invasive coronary angiography was considered clinically necessary to exclude AMI. 36 The study has several limitations. The small size of the study group and the predominance of STEMI patients do not allow us to draw firm conclusions regarding the important group of NSTEMI patients, in whom conventional ECGbased diagnosis is often less reliable.…”

Acute Myocarditis Masquerading as ST-Elevation Myocardial Infarction in a 17-Year-Old

“…However, it is equally important to not misdiagnose or confuse other causes of ST-segment elevation with acute myocardial infarction [8,9]. Patients with myocarditis mimicking STEMI presentation often present great diagnostic as well as therapeutic challenges and may mistakenly undergo unnecessary interventions such as thrombolytic therapy or urgent coronary angiography [10][11][12][13]. Studies done to evaluate inappropriate thrombolytic use in patients with suspected ACS discovered that 10 of 93 patients (11%) in one study [14] and 35 of 609 patients (5.7%) in another study [15], did not have an infarction.…”