About 50% of patients undergoing primary PCI shows delayed myocardial perfusion. However, the consequent improvement in myocardial perfusion post-PCI is not universal. In patients with acute STEMI undergoing primary PCI treatment, the peak troponin I and SYNTAX II score may be an independent predictor of MVO.Įarly percutaneous coronary intervention (PCI) has been reported to significantly reduce mortality in patients with acute ST-segment elevation myocardial infarction (STEMI). In multivariable regression analysis, peak troponin I (odd ratio = 1.236, p = 0.001) and SYNTAX II score (OR = 11.636, p = 0.010) were identified as independent predictors of MVO. The areas under the receiver operator characteristic curves of SYNTAX score, SYNTAX II score and Gensini score for predicting MVO patients were 0.726, 0.774 and 0.807. Patients with MVO had higher SYNTAX scores, SYNTAX II scores and Gensini scores than those without MVO (all p < 0.001). ResultsĪ total of 122 patients were included (mean age 60.6 ± 12.8 years). Three CAG scores (SYNTAX score, SYNTAX II score and Gensini score) were used to assess the severity of coronary artery atherosclerotic burden. The patients were divided into MVO and non-MVO group based on the CMR results. CMR imaging was performed between 3 and 7 days after PCI. Methodsįrom October 2020 to October 2021, 141 consecutive patients with acute STEMI who underwent primary PCI and CMR were retrospectively reviewed. Our study aimed to validate the ability of the CAG scores in predicting microvascular obstruction (MVO) detected by cardiac magnetic resonance (CMR) imaging. However, quality evidence regarding the association between the CAG scores and microvascular injury is still needed. Some coronary artery angiography (CAG) scores are associated with the no-reflow phenomenon after percutaneous coronary intervention (PCI) in patients with acute ST-segment elevation myocardial infarction (STEMI).
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