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[Coronary angiography: 1st or 2nd-line test?]
N Danchin1, M Angioi, I Abdel Fattah
1Service de Cardiologie, CHU de Nancy-Brabois, Vandoeuvre-Les-Nancy.
Insights
Coronary angiography is invasive and expensive, questioning its role as a first-line diagnostic tool. Its use should be reserved for cases with clear clinical benefit, like severe angina, to avoid unnecessary procedures.
Area of Science:
- Cardiology
- Diagnostic Imaging
Background:
- Coronary angiography is frequently performed but remains invasive and costly.
- Its role as a first-line diagnostic method requires critical evaluation.
Purpose of the Study:
- To discuss the appropriate role of coronary angiography in diagnosing coronary atherosclerosis.
- To evaluate the clinical benefit of routine versus selective use of coronary angiography.
Main Methods:
- Review of the diagnostic capabilities and limitations of coronary angiography.
- Analysis of prognostic indicators provided by the procedure.
- Consideration of functional repercussions of coronary stenosis.
Main Results:
- Coronary angiography definitively diagnoses coronary atherosclerosis and provides prognostic indicators (vessel disease).
- It cannot precisely assess disease severity or functional impact of stenosis.
- First-line use is justified mainly for patients with significant angina symptoms.
Conclusions:
- Systematic, first-line coronary angiography may not offer obvious clinical benefit in all cases.
- Decisions for myocardial revascularization should not solely rely on angiography findings.
- Avoid the "oculostenotic reflex" by considering functional significance over anatomical "mapping" alone.
Abstract:
Coronary angiography, although now performed extremely frequently, remains an invasive and expensive examination, whose place, as first-line diagnostic method, must be discussed; Its main advantage is to provide a definitive diagnosis of coronary atherosclerosis as well as simple prognostic indicators (single vessel, two-vessel or three-vessel disease; concomitant evaluation of left ventricular function by associated radiological ventriculography). However, it is unable to precisely assess the degree of coronary wall disease and, more importantly, cannot evaluate the functional repercussions of stenosis. Under these conditions, only cases in which myocardial revascularization is expected to provide a definite clinical benefit (presence of frank angina symptoms) probably justify first-line coronary angiography. In all other cases, coronary angiography is a useful examination to provide reference "mapping" of the coronary lesions, but an obvious clinical benefit for the patient cannot be expected from systematic use of this technique. In particular, in such situations, coronary angiography should not be the only element on which the decision to perform myocardial revascularization should be based: the "oculostenotic reflex" must always be avoided.