Gao G, Feng L, Fu J, et al. - In patients receiving primary percutaneous coronary intervention (PCI) for ST-segment elevation myocardial infarction (STEMI), a positive correlation between SYNTAX score (SS) and infarct size and a negative correlation between SS and myocardial salvage was observed, suggesting an independent predictive value of the myocardial injury.

• In this single-center retrospective study, 149 STEMI patients (96 low SS, 53 mediate-high SS) who had undergone primary PCI within 12 h from symptom onset were analyzed.

• Multivariable model showed that SS (> 22 as categorical variable, OR = 2.245; as continuous variable, OR = 1.053) was significantly related to high infarct size (IS) (≥ mean 35.43).

• For high IS and low myocardial salvage index (≤ median 28.01), areas under the receiver operating characteristic curves of SS were 0.664 and 0.610, respectively.