The Effect of Frailty and Other Geriatric Syndromes on the Prognosis of Elderly Patients With Acute Coronary Syndrome

This is a prospective observational clinical trail which will recruit 1000-1500 participants over 65 years with frailty and acute coronary syndrome (ACS) in Beijing Friendship hospital. The investigators will conduct frailty assessment (FRAIL scale, CFS, SPPB), comorbidities, functional status (Barthel index, ADL, IADL), nutritional risk (MNA-SF), and then observe the clinical outcomes of elderly ACS participants with frailty. Then, the investigators will follow-up these participants separately in 1,3,6 and 12months, the anticipate follow-up time is 1 year. According to the follow-up results, investigators will evaluate the impact of frailty and other senile syndromes on the short-term and long-term prognosis of ACS, and develop a scoring system for the prognosis evaluation of elderly ACS participants.