Objective To evaluate the relationship between classification of clinical,the infarct size in patients with acute cerebral infarction and electrocardiographic(ECG)changes.Methods The ECG were done in 216 patients with acute cerebral infarction.ECG results of the patients were analyzed according to classification of the Oxfordshire Commumity Project Criteria(OCSP)and infarct size.Results The rates of ECG abnormality in classification of OCSP were 95.5% for total anterior circulation infarction(TACI),80.4% for partial anterior circulation infarction(PACI),62.5% for posterior circulation infarction(POCI)and 48.5% for lacunar cerebral infarction(LACI).The rates of ECG abnormality of TACI and PACI were signficantly higher than that of group of LACI(P