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Related Experiment Videos

A prioritisation system for elective coronary angiography

D P de Bono1, B Ravilious, I el-Zoubi

  • 1Division of Cardiology, Glenfield Hospital, Leicester, UK.

Heart (British Cardiac Society)
|July 11, 1998
PubMed
Summary

A new clinical scoring system can prioritize patients for cardiac catheterization, improving selection for angioplasty or bypass surgery. However, prioritizing non-invasive criteria may risk missing severe coronary disease in some patients.

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Area of Science:

  • Cardiology
  • Clinical Prioritization
  • Health Services Research

Background:

  • Access to cardiac catheterization is often limited, necessitating effective prioritization systems.
  • Existing clinical criteria may not accurately predict angiographic findings or guide revascularization decisions.

Purpose of the Study:

  • To develop a clinical prioritization system for rationing access to cardiac catheterization.
  • To evaluate its performance in predicting angiographic findings and guiding selection for angioplasty or coronary artery bypass graft surgery.

Main Methods:

  • A scoring system based on established clinical criteria was applied to 665 patients awaiting coronary angiography.
  • Multivariate analysis identified predictors of coronary disease severity in 178 patients.

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  • A modified scoring system was developed and tested on 100 patients.

    • Main Results:

    • The established clinical score showed poor correlation with angiographic findings.
    • Age, male sex, previous myocardial infarction, high cholesterol, and diabetes were independent predictors of coronary score.
    • The modified scoring system demonstrated improved prediction of coronary score compared to the original system.

    Conclusions:

    • Clinical and non-invasive criteria can be used to rank patients for cardiac procedures.
    • Implementing a prioritization system based on non-invasive criteria involves an accepted risk of overlooking severe coronary disease in some patients.