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The value of ATP stress MCE in evaluating myocardial microvascular spasm -- a case report 1
  • Liu xuebing,
  • Chun-Mei Li
Liu xuebing
Sichuan Academy of Medical Sciences and Sichuan People's Hospital
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Chun-Mei Li
Sichuan Academy of Medical Sciences and Sichuan People's Hospital
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Abstract

We reported a patient with chest pain, but the coronary angiography was normal. ATP stress myocardial contrast electrocardiography(MCE) was performed. There was apical ventricular septal perfusion delay before ATP stress, and the perfusion delay areas were significantly reduced at the peak period, which was similar to the “reverse redistribution” perfusion characteristics of nuclear myocardium in coronary vasospasm, The areas of delayed perfusion in the recovery period were larger than that before stress, the increase of blood flow spectrum resistance in the distal segment of left anterior descending coronary artery and the occurrence of chest pain all showed that ATP induced myocardial microvascular spasm. The MCE perfusion characteristics and the changes of coronary spectrum had certain clinical value in the diagnosis of myocardial microvascular spasm.