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Validation of the Prognostic Ability of Eight Risk Scores for Cardiovascular Events in NSTEMI Patients with
Chen Wang1, Jiachun Lang1, He Jiao2
1Department of Cardiology, Tianjin Chest Hospital, Tianjin, China.
Insights
This study evaluated eight risk scores for predicting outcomes in non-ST-elevation myocardial infarction patients with multi-vessel disease after PCI. Clinical variable scores showed better prediction of adverse cardiovascular events.
Area of Science:
- Cardiology
- Clinical Risk Stratification
- Interventional Cardiology
Background:
- Non-ST-elevation myocardial infarction (NSTEMI) patients with multi-vessel disease (MVD) undergoing percutaneous coronary intervention (PCI) face significant risks.
- Accurate risk stratification is crucial for optimizing management and improving outcomes in this population.
Purpose of the Study:
- To compare the predictive accuracy of eight established risk scores in NSTEMI patients with MVD post-PCI.
- To identify the most effective risk score for predicting cardiac death, major adverse cardiovascular events (MACE), all-cause death, and myocardial infarction (MI).
Main Methods:
- A cohort of 862 NSTEMI patients with MVD post-PCI was analyzed.
- Eight different risk scores were evaluated for their predictive performance.
- Outcomes assessed included cardiac death, MACE, all-cause death, and MI over a median follow-up of 4.8 years.
Main Results:
- The Synergy Between PCI With Taxus and Cardiac Surgery (SYNTAX) score II demonstrated the highest accuracy for predicting cardiac death (AUC: 0.814).
- The logistic SYNTAX score extended model (LSSextended) was most powerful for predicting MACE (AUC: 0.624) and MI (AUC: 0.657).
- The modified Age, Creatinine, and Ejection Fraction score (MAS) excelled in predicting all-cause death (AUC: 0.798).
Conclusions:
- Risk scores incorporating clinical variables demonstrated superior predictive ability for adverse cardiovascular events in NSTEMI patients with MVD after PCI.
- The choice of risk score should be tailored to the specific outcome being predicted (e.g., cardiac death, MACE, all-cause death).
- Further research may refine these scores for enhanced clinical utility in this patient group.
Abstract:
This study compared eight risk scores regarding their predictive ability in non-ST-elevation myocardial infarction (NSTEMI) patients (n = 862) with multi-vessel disease (MVD) after percutaneous coronary intervention (PCI). The primary outcome was cardiac death. The secondary outcomes included major adverse cardiovascular event (MACE) [a composite of all-cause death, myocardial infarction (MI), and unplanned repeat revascularization], all-cause death, and MI. During a median follow-up of 4.8 years, 47 (5.5%) cardiac death, 218 (25.3%) MACE, 79 (9.2%) all-cause death, and 40 (4.6%) MI were recorded. The Synergy Between PCI With Taxus and Cardiac Surgery (SYNTAX) score II was the most accurate for cardiac death with the highest area under the receiver operating characteristic curve (AUC) (0.814, 95% CI: 0.758-0.869). The logistic SYNTAX score extended model (LSSextended) exhibited the most powerful ability in predicting MACE (AUC: 0.624, 95% CI: 0.580-0.667) and MI (AUC: 0.657, 95% CI: 0.567-0.747). The modified Age, Creatinine, and Ejection Fraction score (MAS) was the most accurate score in predicting all-cause death (AUC: 0.798, 95% CI: 0.752-0.844). The scores involving clinical variables showed better ability to predict adverse cardiovascular events among NSTEMI patients with MVD after PCI.
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