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A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
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Published on: December 28, 2012

Coronary steal detected by transthoracic Doppler echocardiography

Shinji Inaba1, Katsuji Inoue, Haruhiko Higashi

  • 1Division of Cardiology, Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan. sininaba@m.ehime-u.ac.jp

European Journal of Echocardiography : the Journal of the Working Group on Echocardiography of the European Society of Cardiology
|July 16, 2011
PubMed

Insights

Coronary steal, a phenomenon in collateral-supplied arteries, can impair heart function during stress. Non-invasive Doppler echocardiography successfully demonstrated this effect in a patient with functional occlusion.

Area of Science:

  • Cardiovascular Medicine
  • Diagnostic Imaging
  • Physiology

Background:

  • Coronary steal is a hemodynamic phenomenon where blood flow is diverted away from an area of the myocardium towards a more dilated vascular bed during stress.
  • This phenomenon is typically observed in the recipient artery supplied by collateral vessels.
  • Stress-induced coronary steal can negatively impact myocardial function, even in territories with well-developed collateral circulation.

Observation:

  • A case study involving a patient with functional occlusion was analyzed.
  • The coronary steal phenomenon was successfully demonstrated non-invasively in this patient.
  • Transthoracic Doppler echocardiography was the primary diagnostic tool used.

Findings:

  • Non-invasive assessment using transthoracic Doppler echocardiography confirmed the presence of coronary steal.
  • The study highlights the utility of Doppler echocardiography in visualizing and quantifying coronary blood flow dynamics.
  • Functional occlusion was identified as a condition where coronary steal can manifest.

Implications:

  • Non-invasive assessment of coronary flow using Doppler echocardiography provides valuable insights into the pathophysiology of coronary steal.
  • This technique may aid in the diagnosis and management of patients with conditions leading to coronary steal.
  • Understanding coronary steal is crucial for improving therapeutic strategies in ischemic heart disease.

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