[ Back to EurekAlert! ] Public release date: 3-Nov-2009
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Contact: Rebecca Finseth
newsbureau@mayo.edu
507-284-5005
Mayo Clinic

New methods found useful for diagnosing myocarditis

ROCHESTER, Minn. -- Myocarditis is an important, and often unrecognized cause of dilated cardiomyopathy (DCM). Several new diagnostic methods, such as cardiac magnetic resonance imaging (MRI), are useful for diagnosing myocarditis, according to a study published in the November 2009 issue of Mayo Clinic Proceedings.

"The use of MRI is particularly significant in the diagnosis of patients with myocarditis because it is a standard, noninvasive method," says Leslie Cooper Jr., M.D., Mayo Clinic Division of Cardiovascular Diseases.

Endomyocardial biopsy may be used for patients with acute dilated cardiomyopathy associated with hemodynamic compromise, those with life-threatening arrhythmia, and those whose condition does not respond to conventional supportive therapy. "Recent improvements in staining methods of biopsy samples have made it easier to read the slides because the stain is more sensitive than previous methods," says Dr. Cooper.

Viral infection also is an important cause of myocarditis, and the spectrum of viruses known to cause myocarditis has changed in the past two decades. Important prognostic variables include the degree of left and right ventricular dysfunction, heart block, and specific histopathological forms of myocarditis.

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A peer-reviewed journal, Mayo Clinic Proceedings publishes original articles and reviews dealing with clinical and laboratory medicine, clinical research, basic science research and clinical epidemiology. Mayo Clinic Proceedings is published monthly by Mayo Foundation for Medical Education and Research as part of its commitment to the medical education of physicians. The journal has been published for more than 80 years and has a circulation of 130,000 nationally and internationally. Articles are available online at www.mayoclinicproceedings.com.

About Mayo Clinic

Mayo Clinic is the first and largest integrated, not-for-profit group practice in the world. Doctors from every medical specialty work together to care for patients, joined by common systems and a philosophy of "the needs of the patient come first." More than 3,300 physicians, scientists and researchers and 46,000 allied health staff work at Mayo Clinic, which has sites in Rochester, Minn., Jacksonville, Fla., and Scottsdale/Phoenix, Ariz. Collectively, the three locations treat more than half a million people each year. To obtain the latest news releases from Mayo Clinic, go to www.mayoclinic.org/news. For information about research and education visit www.mayo.edu. MayoClinic.com (www.mayoclinic.com) is available as a resource for your health stories.



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