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Cardiac MR sheds light on obscure heart muscle condition
Date:11/17/2010

p>To assess the association of LVNC with these traditional risk factors, the researchers assessed patients by echocardiography or cardiac MR, and diagnosed 125 patients with LVNC. Only 38.2 percent were diagnosed by echocardiography.

"The incidence rates are unclear because echo has been the gold standard," says Katsiyiannis. "Echo missed the majority of patients with LVNC. Therefore, LVNC cannot be ruled out based on a normal echo."

The study's patient population had a higher than expected incidence of congestive heart failure (38.5 percent), left ventricular dysfunction with ejection fraction of less than 45 percent by cardiac MR (31.9 percent) and ventricular tachycardia (24.8 percent). In addition, the researchers at Minneapolis Heart Institute reported that 3.1 percent of patients experienced stroke and 3.1 percent experienced sudden death.

Katsiyiannis concludes that LVNC requires "much more research before clinical decisions are based on its diagnosis."


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Contact: Meghan Bethke
mbethke@mhif.org
612-863-5410
Minneapolis Heart Institute Foundation
Source:Eurekalert

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