Six variables showed statistical significance, including the time from onset to hospital admission, occurrence of ventricular tachycardia or ventricular fibrillation, abnormal level of creatinine, declining tendency of hs-cTnI within 24 h, intravenous immunoglobulin (IVIG) treatment and IABP operation. The gene discussed is TNNI3; the disease is ventricular tachycardia.