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Impact of preprocedural biological markers on 10-year mortality in the SYNTAXES trial
Hironori Hara1,2, Hideyuki Kawashima1,2, Masafumi Ono1,2
1Department of Cardiology, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands.
Insights
Pre-procedure C-reactive protein (CRP), HbA1c, and creatinine clearance (CrCl) predict 10-year mortality after coronary revascularisation. Statin use is crucial for better outcomes, as non-use indicates a worse prognosis.
Area of Science:
- Cardiovascular Medicine
- Interventional Cardiology
- Clinical Research
Background:
- Creatinine clearance (CrCl) is a known predictor of mortality in complex coronary artery disease.
- The SYNTAX Extended Survival (SYNTAXES) study investigates long-term outcomes after coronary revascularisation.
Purpose of the Study:
- To determine the impact of preprocedural biological markers on 10-year mortality following coronary revascularisation.
- To assess the association of C-reactive protein (CRP), HbA1c, CrCl, and lipid profiles with long-term survival.
Main Methods:
- Analysis of 10-year vital status follow-up for 1,800 patients from the SYNTAXES study.
- Evaluation of patients with three-vessel (3VD) and/or left main coronary artery disease (LMCAD) undergoing percutaneous or surgical revascularisation.
- Statistical analysis of preprocedural CRP, HbA1c, CrCl, and lipid markers in relation to all-cause mortality.
Main Results:
- Elevated CRP (≥2 mg/L), HbA1c (≥6%), and low CrCl (<60 ml/min) were associated with increased 10-year all-cause death.
- No significant interaction was found between these markers and the type of revascularisation.
- Preprocedural lipid markers were not significantly associated with mortality, but non-use of statins predicted a worse prognosis.
Conclusions:
- Preprocedural CRP and HbA1c levels are significant predictors of long-term mortality post-revascularisation, irrespective of the technique used.
- The effectiveness of statins in mitigating risks associated with lipid biomarkers is highlighted.
- Non-adherence to statin therapy is a critical factor contributing to poorer long-term prognosis, underscoring the importance of pharmacological management.
Background:
Creatinine clearance (CrCl) is an independent determinant of mortality in predictive models of revascularisation outcomes for complex coronary artery disease.
Aims:
This study aimed to investigate the impact of preprocedural biological markers on 10-year mortality following coronary revascularisation.
Methods:
The SYNTAX Extended Survival (SYNTAXES) study evaluated the 10-year vital status follow-up of 1,800 patients with de novo three-vessel (3VD) and/or left main coronary artery disease (LMCAD) randomised to include percutaneous or surgical coronary revascularisation. The associations between mortality and preprocedural C-reactive protein (CRP), haemoglobin, HbA1c, CrCl, fasting triglycerides, low-density lipoprotein cholesterol, and high-density lipoprotein cholesterol were analysed.
Results:
Out of 1,800 patients, 460 patients died before the 10-year follow-up. CRP, HbA1c and CrCl with threshold values of ≥2 mg/L, ≥6% (42 mmol/mol) and <60 ml/min, respectively, were associated with 10-year all-cause death (adjusted hazard ratio [95% confidence interval]: 1.35 [1.01-1.82], 1.51 [1.16-1.95], and 1.46 [1.07-2.00], respectively). There was no significant interaction between the biological markers on all-cause mortality and the type of revascularisation. Preprocedural lipid markers were not significantly associated with 10-year all-cause death, but the non-use of statins was a determinant factor of worse prognosis (adjusted hazard ratio [95% confidence interval]: 1.68 [1.26-2.25]).
Conclusions:
Preprocedural biomarkers, such as CRP and HbA1c, are associated with long-term mortality post revascularisation, regardless of the revascularisation technique. Conventional lipidic biomarkers associated with high-risk of cardiovascular events seem to be effectively mitigated by the long-term use of statins, whereas the non-use of statins was a factor of a worse prognosis, emphasising the importance of pharmacological treatment.
Trial Registration:
SYNTAXES ClinicalTrials.gov: NCT03417050. SYNTAX ClinicalTrials.gov: NCT00114972.
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