Chest pain and ST-segment elevation in a patient with polymyositis: a case report
Pavlos N Stougiannos1, Dimitrios Z Mytas, Andreas A Katsaros
1Department of Cardiology, Hippokration Hospital, Athens, Greece, 114, Vas, Sofias Street, 11527 Athens, Greece. d.mitas@yahoo.gr.
Insights
Polymyositis can cause life-threatening focal myocarditis, mimicking heart attacks. Early diagnosis and treatment are crucial for managing this rare cardiac complication in autoimmune disease patients.
Area of Science:
- Cardiology
- Rheumatology
- Immunology
Background:
- Cardiac involvement is a known complication of polymyositis, encompassing conditions like myocarditis and arrhythmias.
- Acute myocarditis in polymyositis is rare and can be life-threatening, despite often having a mild course.
Purpose of the Study:
- To report a case of polymyositis presenting with symptoms mimicking ST Elevation Acute Coronary Syndrome.
- To discuss the diagnostic challenges and treatment strategies for focal myocarditis in a polymyositis patient.
Main Methods:
- Case report of a 36-year-old woman with polymyositis.
- Clinical presentation mimicking acute coronary syndrome.
- Diagnostic evaluation considering autoimmune etiology.
Main Results:
- The patient's symptoms, atypical for cardiac ischemia, prompted reconsideration of the diagnosis.
- Focal myocarditis was identified as the cause, despite the absence of typical cardiovascular risk factors.
Conclusions:
- Polymyositis can present with cardiac manifestations that mimic acute coronary syndromes.
- A high index of suspicion and a thorough diagnostic approach are essential for identifying focal myocarditis in polymyositis patients.
- Management requires careful consideration of the underlying autoimmune condition.
Background:
Cardiac involvement in patients with polymyositis is well-documented and includes myocarditis, coronary arteritis, pericarditis, valvular dysfunction and arrhythmias.
Case Report:
There are only few reports of acute myocarditis in patients with polymyositis and, although it usually follows a chronic, mild course, it may occasionally become life-threatening. We describe the case of a 36-year-old young woman suffering from polymyositis who presented with clinical signs and symptoms mimicking an ST Elevation Acute Coronary Syndrome. The atypical features of the pain, the young age of the woman, the lack of significant cardiovascular risk factors and the medical history of an autoimmune disease, led us to reconsider our initial diagnosis towards the presence of focal myocarditis.
Conclusion:
We describe our diagnostic approach and comment on our speculations and decisions about the treatment of such a life threatening event.
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