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Cardiac sarcoidosis: diagnosis and management
S W Dubrey1, R Sharma2, R Underwood3
1Department of Cardiology, Hillingdon Hospital, Uxbridge, UK.
Insights
Cardiac sarcoidosis, a serious heart condition, presents unpredictably with arrhythmias or heart failure. Advanced imaging and tailored treatments, including corticosteroids, are crucial for managing this variable disease.
Area of Science:
- Cardiology
- Immunology
- Internal Medicine
Background:
- Cardiac sarcoidosis is a severe manifestation of sarcoidosis, impacting the heart.
- It often leads to arrhythmias, conduction disease, or heart failure.
- Prognosis varies significantly due to heterogeneous presentation and racial differences.
Purpose of the Study:
- To review the epidemiology of cardiac sarcoidosis.
- To discuss advancements in diagnostic techniques.
- To outline current management strategies for cardiac sarcoidosis.
Main Methods:
- Review of existing literature on cardiac sarcoidosis.
- Analysis of diagnostic modalities including ECG, echocardiography, PET, MRI, and nuclear scanning.
- Evaluation of treatment approaches, from corticosteroids to immunosuppressants and heart transplantation.
Main Results:
- Cardiac involvement presents with diverse symptoms like arrhythmias and heart failure.
- Advanced imaging (PET, MRI) is essential for diagnosis and management.
- Corticosteroids are the primary treatment, with other therapies and heart transplantation as options.
Conclusions:
- Cardiac sarcoidosis diagnosis and management remain challenging, especially for subclinical cases.
- Early and accurate diagnosis using advanced imaging is vital.
- Treatment strategies are evolving, with heart transplantation offering a viable option in select cases.
Abstract:
Cardiac sarcoidosis is one of the most serious and unpredictable aspects of this disease state. Heart involvement frequently presents with arrhythmias or conduction disease, although myocardial infiltration resulting in congestive heart failure may also occur. The prognosis in cardiac sarcoidosis is highly variable, which relates to the heterogeneous nature of heart involvement and marked differences between racial groups. Electrocardiography and echocardiography often provide the first clue to the diagnosis, but advanced imaging studies using positron emission tomography and MRI, in combination with nuclear isotope perfusion scanning are now essential to the diagnosis and management of this condition. The identification of clinically occult cardiac sarcoidosis and the management of isolated and/or asymptomatic heart involvement remain both challenging and contentious. Corticosteroids remain the first treatment choice with the later substitution of immunosuppressive and steroid-sparing therapies. Heart transplantation is an unusual outcome, but when performed, the results are comparable or better than heart transplantation for other disease states. We review the epidemiology, developments in diagnostic techniques and the management of cardiac sarcoidosis.
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