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[Stress echocardiography].

Asbjørn Støylen1, Knut Bjørnstad

  • 1Institutt for sirkulasjon og billeddiagnostikk, Det medisinske fakultet, Norges teknisk-naturvitenskapelige universitet, 7489 Trondheim. asbjorn.stoylen@medisin.ntnu.no

Tidsskrift for Den Norske Laegeforening : Tidsskrift for Praktisk Medicin, Ny Raekke
|February 14, 2004
PubMed
Summary

Stress echocardiography detects ischaemia via wall motion abnormalities, offering high sensitivity and specificity for cardiac risk assessment. This diagnostic tool aids in identifying cardiac events and guiding patient management effectively.

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Area of Science:

  • Cardiology
  • Diagnostic Imaging

Background:

  • Stress echocardiography detects myocardial ischaemia through abnormal wall motion.
  • It utilizes either exercise or pharmacological stress, with exercise being more sensitive and pharmacological stress more specific.

Purpose of the Study:

  • To provide a literature-based overview of stress echocardiography.
  • To detail its diagnostic and prognostic value, indications, and contraindications.

Main Methods:

  • Literature review of stress echocardiography techniques.
  • Analysis of diagnostic accuracy, sensitivity, and specificity.

Main Results:

  • Sensitivity ranges from 80-90%, specificity from 75-100%, depending on disease severity.
  • A negative test indicates a low annual cardiac event rate (~1%) and low preoperative risk.

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  • Diagnostic accuracy is influenced by equipment quality and examiner experience.

    • Conclusions:

    • Stress echocardiography is valuable for patients unable to exercise, preoperative risk assessment, and evaluating suspected false-negative exercise ECGs.
    • It supplements coronary angiography for intermediate stenoses, culprit lesion identification, and viability assessment.
    • Useful in aortic stenosis with reduced LV function for stenosis and contractile reserve evaluation.