Diagnostic Implications of Elevated Levels of Smooth-Muscle Myosin Heavy-Chain Protein in Acute Aortic Dissection.

Evaluates the sensitivity and specificity of a study on circulating smooth-muscle myosin heavy-chain protien as a bio-chemical diagnostic tool for aortic dissection. Participation of patients with acute aortic dissection, acute myocardial infraction and healthy volunteers; Increased levels of circulating smooth-muscle myosin heavy-chain protein in aortic patients; Assay sensitivity; Specificity of other particpants.