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[Predictive factors of normal coronary angiography]
1Service de cardiologie, Hôpital Militaire de Tunis.
La Tunisie Medicale
|March 15, 2002
Summary
This study suggests coronary angiography may be less necessary for young women with few cardiovascular risk factors and only electrical positive exercise tests, potentially reducing invasive procedures.
Area of Science:
- Cardiology
- Diagnostic Imaging
Background:
- Distinguishing between anginal symptoms with normal coronaries and acute coronary syndrome with pathological coronaries is crucial for appropriate patient management.
- Coronary angiography, while definitive, is invasive and costly, necessitating refined indications.
Purpose of the Study:
- To compare clinical characteristics and non-invasive test results between patients with anginal symptoms and normal coronaries versus those with acute coronary syndrome and abnormal coronaries.
- To evaluate the potential to modulate the use of coronary angiography based on patient demographics and non-invasive testing outcomes.
Main Methods:
- Retrospective analysis of two groups of 120 patients each.
- Group A: Anginal symptoms, positive exercise test and/or 24-hour ECG ischemic events, normal coronaries.
- Group B: Acute coronary syndrome, pathological coronaries. Comparison of age, sex, risk factors, exercise test, and 24-hour ECG findings.
Main Results:
- Group A patients were younger (56 vs 60 years), had a higher percentage of women (41% vs 15%), and fewer cardiovascular risk factors.
- Exercise tests showed ischemic events in 35% of Group A vs 75% of Group B (p < 0.01).
- 24-hour ECG showed ST depression in 9% of Group A vs 25% of Group B (p < 0.01).
Conclusions:
- Non-invasive tests show significant differences between the two groups.
- Findings support reconsidering coronary angiography indications, particularly for young women with minimal cardiovascular risk factors and only electrical positive exercise tests.