The Association between SYNTAX Score with New Onset Atrial Fibrillation in Patients Presenting with Acute Myocardial Infarction

Objective: atrial fibrillation (af) is the most common rhythm disturbance after acute myocardial infarction (ami) and affects the short and long term prognosis negatively. coronary artery disease (cad) is an independent risk factor for af development. the scoring system syntax (synergy between pci with taxus and cardiac surgery) may show coronary anatomical severity and complexity because it is an essential quantitative and reproducible measurement before revascularization. to the best of our knowledge, the relationship between syntax score and af has not been investigated. therefore, we aimed to investigate the relationship between new onset developed af and syntax score in ami patients. material-method: 350 patients with the ami between january 2015 and june 2016 were enrolled retrospectively. 273 (78%) of the patients were male. 23 of the patients were excluded. demographic and clinical characteristics of patients were recorded and patients were classified into two groups with low syntax scores and moderate-high syntax scores. the relationship between syntax score and development of af was evaluated. independent markers of af-developed patients were determined with multivariate regression analysis. results: 327 patients included in the study, 255 (77.8%) had a low syntax score and 72 (22.2%) had a medium-high syntax score. af developed in 37 of the patients (10.6%). the frequency of af development in the low and medium-high syntax score group was similar (9.4% vs 12.5%, p = 0.442). multivariate regression analysis showed that acei agent use (odds ratio=0.362, 95% confidence interval 0.157-0.835, p=0,017) and age of patients (odds ratio =1.041, 95% confidence interval 1,008-1,075 p=0,014) and the duration of hospitalization in coronary intensive care ((odds ratio =2.911, 95% confidence interval 1,595-5,315, p=0,001) were independently associated with development of af in ami patients. conclusions: there was no relationship between af development and syntax score in ami patients. in this study, age, initiation of acei after admission, and duration of hospitalization in coronary intensive care were independently associated with af development.