P1835Application of SYNTAX score I, II and residual SYNTAX as predictors of long-term clinical outcomes after coronary artery bypass grafting

Abstract

Background The evaluation of coronary disease by SYNTAX score I (SSI) is used to grade coronary complexity. Following SSI, two other scores were developed: SYNTAX score II (SSII) and residual SYNTAX score (rSS). Nevertheless, there is still a lack of evidence about the prognostic significance of these scores among patients undergoing CABG. Purpose Our aim was to evaluate the relation of the SSI, SSII and rSS score with outcomes in a long-term follow-up after elective CABG. Methods This is a single center, registry-based study. Baseline SSI was calculated from patients undergoing CABG by interventional cardiologists. SSI results were considered as usual: <23, 23–32 and >32. SSII and rSRR were then calculated and categorized in tertiles: <21.4, 21.4–29.4 and >29.4 for SSII and 0, 1–5 and >5 for rSS. Primary outcome was a composite of overall death, myocardial infarction, additional revascularization, or stroke (MACCE). Results Data were obtained from 559 patients. Median follow-up was 6 years (IQR: 4.9–9.8) and 170 events were documented. The Kaplan-Meier curves (figure 1) showed significant differences of MACCE in higher SSI, SSII and rSS (p=0.039, 0.033, <0.001 respectively). After multivariate adjustment, rSS, ejection fraction (EF) and age were found to be independent predictors of MACCE (p<0.001, 0.034 and 0.006, respectively). Figure 1 Conclusion In this sample SSI, II and residual were associated with the occurrence of events. However, just the rSS remained an independent predictor of MACCE together with age and EF.

The SYNTAX score and the coronary artery calcium score for the prediction of clinical outcomes in patients undergoing percutaneous coronary intervention

“…Our study found that after 182 patients with coronary heart disease undergoing PCI treatment were classified into low-risk, medium-risk, and high-risk groups based on SYNTAX score and SYNTAX score II, the incidence of MACCE was 6.7%, 18.3%, 24.2%; 26.7%, and there are statistical differences between the groups, consistent with previous results (Sinning et al, 2013;Martins et al, 2019), suggesting that the SYNTAX score and SYNTAX score II can be used as a risk score tool for coronary heart disease patients after PCI and predict MACCR incidence. However, this study did not find a significant statistical difference in the incidence of MACCE between different groups of coronary calcium scores.…”