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Published on: August 28, 2018
Computed tomography coronary angiography as the noninvasive in stable coronary artery disease? Long-term outcomes
Diana De Campos1, Rogério Teixeira1,2, Carolina Saleiro1
1Centro Hospitalar e Universitário de Coimbra - Hospital Geral, Quinta dos Vales, São Martinho do Bispo 108, 3041-801, Coimbra, Portugal.
Insights
Coronary computed tomography angiography (CCTA) and functional testing (FT) showed similar outcomes for stable coronary artery disease patients. However, CCTA significantly reduced nonfatal myocardial infarction and downstream testing.
Area of Science:
- Cardiology
- Diagnostic Imaging
- Evidence-Based Medicine
Background:
- Stable coronary artery disease (CAD) diagnosis relies on various imaging modalities.
- Coronary computed tomography angiography (CCTA) and functional testing (FT) are common diagnostic tools.
- Comparative effectiveness of CCTA versus FT in stable CAD requires updated evidence.
Purpose of the Study:
- To compare the clinical outcomes of CCTA versus FT in patients with stable coronary artery disease.
- To evaluate the impact of CCTA and FT on mortality and major adverse cardiovascular events.
- To assess the efficiency of downstream testing following CCTA or FT.
Main Methods:
- A systematic literature search was conducted across PubMed, Embase, and Cochrane databases.
- Randomized controlled trials (RCTs) comparing CCTA and FT were included in a random-effects meta-analysis.
- The primary endpoint was all-cause death and nonfatal acute coronary syndromes.
Main Results:
- Eight RCTs involving 29,579 patients were analyzed.
- No significant difference in the primary endpoint (all-cause death and nonfatal ACS) was observed between CCTA and FT (RR = 0.97).
- CCTA demonstrated a significant reduction in nonfatal myocardial infarction (MI) (RR = 0.59) and downstream testing (OR = 0.47) compared to FT.
Conclusions:
- Current evidence suggests CCTA is a valuable tool for managing stable coronary artery disease.
- CCTA improves outcomes by reducing nonfatal myocardial infarction and the need for further investigations.
- The findings support the use of CCTA in clinical practice for stable CAD patients.
Abstract:
Aim: To compare outcomes of coronary computed tomography angiography (CCTA) with that of functional testing (FT) in stable coronary artery disease. Methods: We searched PubMed, Embase, and Cochrane for randomized controlled trials (RCTs). A random-effects meta-analysis targeting all-cause death and nonfatal acute coronary syndromes was performed. Results: Eight RCTs enrolling 29,579 patients were included. Pooled relative risk (RR) for the primary end point was similar between CCTA and FT (RR = 0.97; 95% CI: 0.76-1.22). CCTA outperformed FT in nonfatal myocardial infarction (MI) (RR = 0.59; 95% CI: 0.41-0.83) and in downstream testing (OR: 0.47; 95% CI: 0.21-1.01). Conclusion: Updated data of stable coronary artery disease suggests that CCTA improved nonfatal MI and downstream testing.
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Computed Tomography
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...