Abstract 12850: Complex Lesion Characteristics Would be the Potential Risk Factors for Ventricular Fibrillation With Acute Coronary Syndrome

Abstract

Background: In the setting of acute coronary syndrome (ACS), ventricular fibrillation (VF) was serious and fatal complication. However, even though ischemia was well known as the risk for occurrence of VF, what influential factors of ACS patients related to VF were still unclear. We performed extracorporeal cardiopulmonary resuscitation for VF with ACS patients taken to our institute and performed coronary angiography to make definite diagnosis. Accordingly, We sought to the risk factors for VF with ACS. Methods: Consecutive 246 ACS patients hospitalized and underwent emergent coronary revascularization from September 2010 to September 2014 were enrolled. In these, patients with VF were categorized into VF group, and patients without VF were into non-VF group. We reviewed patients’ characteristics, including medications, past histories and laboratory findings, and CAG findings (lesion characteristics with ACC/AHA classification, number of disease vessels, existence of chronic total occlusion (CTO) and left-main coronary artery (LMCA) lesion) retrospectively. Results: Fifty-seven patients developed ACS with VF (VF group), and 189 patients were without VF (non-VF group). Comparing between the groups, the morbidity of previous angina pectoris or coronary artery bypass grafting were significantly higher in VF groups (32.1%-16.0%, p=0.01, 14.3%-1.1%, p<0.001, respectively). The prevalence of Complex lesion characteristics, such as multi vessel disease, CTO and LMCA lesion, was also higher in VF group (71.9%-42.8%, 43.9%-13.9%, 15.8%-6.3%, all p < 0.025, retrospectively). Moreover, multiple logistic regression analysis revealed multi vessel disease and existence of CTO lesion were independent factors for VF. Conclusion: VF group had more complex characteristics of coronary artery disease. Complex lesion characteristics, such as multi vessel disease, CTO and LMCA lesion, would be potential risk factors of VF with ACS patients.