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Related Experiment Video

Updated: May 27, 2026

Modified MicroSecure Vitrification: A Safe, Simple and Highly Effective Cryopreservation Procedure for Human Blastocysts
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Is viability still viable after the STICH trial?

Lauro Cortigiani1, Riccardo Bigi, Rosa Sicari

  • 1Cardiovascular Unit, Campo di Marte Hospital, Lucca, Italy.

European Heart Journal. Cardiovascular Imaging
|November 15, 2011
PubMed
Summary

Myocardial viability assessment using echocardiography helps predict recovery after heart attack. Dobutamine stress echocardiography is a valuable tool, though recent trials question its impact on survival, necessitating further research.

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Area of Science:

  • Cardiology
  • Medical Imaging
  • Echocardiography

Background:

  • Myocardial stunning and hibernation are distinct forms of tissue viability in coronary artery disease.
  • Functional recovery differs: spontaneous in stunning, often post-revascularization in hibernation.

Purpose of the Study:

  • To review the advantages and limitations of ultrasound for evaluating myocardial viability.
  • To discuss the current role of myocardial viability in clinical practice and treatment decisions.

Main Methods:

  • Low-dose dobutamine stress echocardiography (DSE) for identifying stunning and predicting ventricular remodeling.
  • Transthoracic Doppler echocardiography for assessing coronary flow reserve and distinguishing necrotic from stunned myocardium.
  • Resting echocardiography to identify hibernating myocardium based on specific parameters.

Main Results:

  • DSE accurately identifies myocardial stunning and provides prognostic information on ventricular remodeling.
  • Contractile reserve on DSE predicts favorable outcomes in patients with reduced left ventricular function.
  • Echocardiographic parameters can predict the absence of viability in hibernating myocardium.

Conclusions:

  • Echocardiography, particularly DSE, is a cost-effective, radiation-free alternative to nuclear imaging for assessing myocardial viability.
  • While evidence supports viability-guided revascularization, the STICH trial results raise questions about its survival benefit, highlighting the need for careful interpretation and further study.