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Identifying stunned myocardium during cardiac surgery: the role of myocardial contrast echocardiography.

Publication ,  Journal Article
Aronson, S
Published in: J Card Surg
March 1993

Differentiation of reversibly stunned myocardium from irreversibly damaged (infarcted) myocardium is critically important in patient management. Current methods for monitoring myocardial function yield only nonspecific assessments of myocardial viability. On the other hand, myocardial contrast echocardiography (MCE) can be used to evaluate the extent of myocardial perfusion as well as the efficacy of myocardial protection in patients undergoing coronary artery bypass graft (CABG). This system includes an external ultrasound unit and an internal tracer, usually gaseous microbubbles, which reflect the ultrasonic beam. Previous studies have shown that myocardial risk areas identified with MCE correlate with areas defined by technetium autoradiography and infarction size. We have used MCE to evaluate coronary artery bypass patients (N = 21) with regard to myocardial function and cardioplegia perfusion patterns. A significant correlation (p < 0.01) was found between abnormal contrast enhanced cardioplegia patterns and depression of left ventricular function. Refinements to ultrasound technology and contrast agents will further enhance the diagnostic power of MCE for the quantification of myocardial blood flow.

Duke Scholars

Published In

J Card Surg

DOI

ISSN

0886-0440

Publication Date

March 1993

Volume

8

Issue

2 Suppl

Start / End Page

224 / 227

Location

United States

Related Subject Headings

  • Monitoring, Physiologic
  • Intraoperative Care
  • Humans
  • Echocardiography
  • Coronary Artery Bypass
  • Cardiovascular System & Hematology
  • Cardiomyopathies
  • Cardiac Surgical Procedures
  • 3202 Clinical sciences
  • 3201 Cardiovascular medicine and haematology
 

Citation

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Aronson, S. (1993). Identifying stunned myocardium during cardiac surgery: the role of myocardial contrast echocardiography. J Card Surg, 8(2 Suppl), 224–227. https://doi.org/10.1111/j.1540-8191.1993.tb01311.x
Aronson, S. “Identifying stunned myocardium during cardiac surgery: the role of myocardial contrast echocardiography.J Card Surg 8, no. 2 Suppl (March 1993): 224–27. https://doi.org/10.1111/j.1540-8191.1993.tb01311.x.
Aronson, S. “Identifying stunned myocardium during cardiac surgery: the role of myocardial contrast echocardiography.J Card Surg, vol. 8, no. 2 Suppl, Mar. 1993, pp. 224–27. Pubmed, doi:10.1111/j.1540-8191.1993.tb01311.x.
Journal cover image

Published In

J Card Surg

DOI

ISSN

0886-0440

Publication Date

March 1993

Volume

8

Issue

2 Suppl

Start / End Page

224 / 227

Location

United States

Related Subject Headings

  • Monitoring, Physiologic
  • Intraoperative Care
  • Humans
  • Echocardiography
  • Coronary Artery Bypass
  • Cardiovascular System & Hematology
  • Cardiomyopathies
  • Cardiac Surgical Procedures
  • 3202 Clinical sciences
  • 3201 Cardiovascular medicine and haematology