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Related Experiment Videos

Risk stratification by treadmill exercise echocardiography.

Jesús C Peteiro1, Lorenzo Monserrat, Alberto Bouzas

  • 1Unit of Echocardiography and Department of Cardiology, Juan Canalejo Hospital, University of A Coruña, A Coruña, Spain. pete@canalejo.org

Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography
|July 11, 2006
PubMed
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Exercise echocardiography (EE) offers valuable risk assessment for coronary artery disease (CAD) across all patient risk categories. EE provides incremental value beyond clinical and resting variables for predicting cardiac events.

Area of Science:

  • Cardiology
  • Diagnostic Imaging
  • Preventive Medicine

Background:

  • Exercise echocardiography (EE) is recognized for diagnosing coronary artery disease (CAD).
  • Its utility in risk stratification across diverse patient pre-test probability categories remains under investigation.
  • The impact of disease characteristics on risk stratification requires further clarification.

Purpose of the Study:

  • To evaluate the incremental value of EE over clinical, exercise, and resting echocardiographic variables for predicting cardiac events.
  • To assess if CAD characteristics (number, location, nature of disease) influence risk stratification.
  • To determine EE's effectiveness across different pre-test probability groups for CAD.

Main Methods:

  • A cohort of 2436 patients referred for EE was studied.

Related Experiment Videos

  • Patients were categorized into high (1242), moderate (1038), and low (156) pre-test probability groups based on clinical factors.
  • Follow-up duration was 2.1 +/- 1.5 years, monitoring for hard events (myocardial infarction or cardiovascular death).

    • Main Results:

    • Abnormal EE was associated with significantly more hard events (89) compared to normal EE (31) (p < 0.0001).
    • Independent predictors of hard events included gender, Mets, heart rate x blood pressure, resting wall motion score index, and number of involved territories.
    • EE demonstrated incremental value over other variables across all pre-test probability groups.

    Conclusions:

    • Exercise echocardiography provides significant incremental value for risk stratification in patients with varying pre-test probabilities of CAD.
    • EE enhances prediction of cardiac events beyond traditional clinical and resting echocardiographic assessments.
    • The findings support the use of EE for comprehensive risk assessment in CAD patients.