Contents
Diagnosing Myocarditis: The Tests You Need to Know
Published: May 27, 2024
Diagnosing myocarditis can be tricky due to its varied symptoms and resemblance to other heart conditions. Learn about the key tests used to confirm its presence.
Initial Testing
Doctors start with basic tests like an electrocardiogram (ECG) and blood tests for cardiac biomarkers such as troponin. Elevated troponin levels can indicate heart muscle damage, but they aren't specific to myocarditis. Chest X-rays may also be used to check for heart enlargement or fluid in the lungs.
Advanced Imaging Techniques
Cardiovascular Magnetic Resonance (CMR) imaging is a valuable tool for diagnosing myocarditis. It can detect inflammation, scarring, and changes in heart muscle function. The Lake Louise Criteria, which include T1 and T2 mapping, are guidelines used in CMR to suggest myocarditis.
When a Biopsy is Needed
In some cases, an endomyocardial biopsy (EMB) is performed to obtain a definitive diagnosis. This involves taking a small tissue sample from the heart to look for inflammation and other specific changes under a microscope. It's usually reserved for severe or unclear cases.
Frequently Asked Questions
An ECG records the electrical activity of your heart to detect abnormalities.
Elevated troponin levels indicate heart muscle damage.
CMR shows heart inflammation, scarring, and functional changes.
A biopsy is needed for severe or unclear cases to confirm myocarditis.
The Bottom Line
Accurate diagnosis of myocarditis requires a combination of tests and clinical evaluation.
References
- Ammirati E, Moslehi JJ. Diagnosis and Treatment of Acute Myocarditis: A Review. JAMA 2023; 329:1098.
- Kociol RD, Cooper LT, Fang JC, et al. Recognition and Initial Management of Fulminant Myocarditis: A Scientific Statement From the American Heart Association. Circulation 2020; 141:e69.
This article has been reviewed for accuracy by one of the licensed medical doctors working for Doctronic. Always discuss health information with your healthcare provider.
AI Doctor Visit Required
Appointments available 24/7
Top licensed doctors
Available in all 50 states
Full service care
Prescriptions, referrals & treatment
No insurance needed
All notes available in Doctronic
15-min consultation. No hidden costs.
AI Doctor Visit Required
Please Chat With Our AI Doctor First
Our AI doctor assessment helps our human doctors prepare for your video visit and provide better care
For safety reasons we have been forced to end this consultation.
If you believe this is a medical emergency please call 911 or your local emergency services immediately.
If you are experiencing emotional distress, please call the the Suicide & Crisis Lifeline at 988 or your local crisis services immediately.
Contact us
You can also email us at help@doctronic.ai
We aim to reply within 5-7 days
How likely are you to recommend Doctronic to friends or family?