Stephen J. Schueler, M.D.

Ischemic Cardiomyopathy Evaluation

The evaluation of ischemic cardiomyopathy begins with a history and physical examination.

Physical findings in someone with ischemic cardiomyopathy may include:

Testing is necessary to confirm the diagnosis of ischemic cardiomyopathy.

Tests that may be used to evaluate ischemic cardiomyopathy include:

Ischemic Cardiomyopathy Cardiac Catheterization

A cardiac catheterization, or coronary angiogram, may be used to evaluate ischemic cardiomyopathy. A cardiac catheterization is a procedure that identifies narrowed or blocked coronary arteries. During the procedure, a catheter is used to inject dye into the coronary arteries. An x-ray machine is used to show the dye flowing through the arteries.

Examples include:

Ischemic Cardiomyopathy Electrocardiogram

An electrocardiogram (EKG) may be used to evaluate ischemic cardiomyopathy. An electrical impulse stimulates the muscle fibers in the heart to contract. The impulse spreads through the heart in a very organized manner. The heart's normal electrical impulse has a characteristic pattern. The EKG machine displays the pattern of the electrical impulse.

Abnormal electrical patterns on the EKG can help identify heart disease.

The EKG can identify:

Ischemic Cardiomyopathy Thallium Stress Test

A thallium stress test may be used to evaluate ischemic cardiomyopathy. The thallium stress test identifies areas of the heart muscle that receive reduced blood flow from narrowed or blocked coronary arteries. During the test, thallium is injected into the bloodstream. Heart muscle cells collect the thallium in the bloodstream. If blood flow is reduced through one of the coronary arteries, then the muscle cells that are supplied by that artery do not collect as much thallium as muscle cells that receive normal blood flow. A special camera is used to detect thallium in the heart muscle and a computer constructs images of the heart. The images show areas that receive reduced blood flow.


Continue to Ischemic Cardiomyopathy Treatment

Last Updated: Dec 16, 2010 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed Ischemic Cardiomyopathy References
  1. Morrison DA. What is the evidence for percutaneous coronary intervention or coronary artery bypass graft in ischemic cardiomyopathy? Am Heart Hosp J. 2005 Summer;3(3):175-81. [16106138]
  2. Moustakidis P, Cupps BP, Pomerantz BJ, Scheri RP, Maniar HS, Kates AM, Gropler RJ, Pasque MK, Sundt TM. Noninvasive, quantitative assessment of left ventricular function in ischemic cardiomyopathy. J Surg Res. 2004 Feb;116(2):187-96. [15013355]
  3. O'Connor CM, Velazquez EJ, Gardner LH, Smith PK, Newman MF, Landolfo KP, Lee KL, Califf RM, Jones RH. Comparison of coronary artery bypass grafting versus medical therapy on long-term outcome in patients with ischemic cardiomyopathy (a 25-year experience from the Duke Cardiovascular Disease Databank). Am J Cardiol. 2002 Jul 15;90(2):101-7. [12106836]
  4. Yao SS, Qureshi E, Nichols K, Diamond GA, Depuey EG, Rozanski A. Prospective validation of a quantitative method for differentiating ischemic versus nonischemic cardiomyopathy by technetium-99m sestamibi myocardial perfusion single-photon emission computed tomography. Clin Cardiol. 2004 Nov;27(11):615-20. [15562931]
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