Prediction of individual outcome after cudiopulmonary resuscitation is of major medical, ethical, and socioeco- nomic interest but uncertain We experienced the case that the patient got complete neurologic recovery after the 123th day fiom cardiac arrest, who had been suspected to go with poor prognosis because she got the findings of Glasgow Coma Scale 4, severe diffuse encephalopathy on encephalogran and generalized tonic-donic seizure at the 4th day Recently, a 29 year-old women who a.ined from piratory arrest induced presumably by sedative and anticonvulsant therapy for control of seizure that happened during local lidocaine anesthesia for mamoplasty was transfered to our emergency medical center &om local private plastic office Arrest time was about 20 minutes On hos- pital arrival, she had a pulseless bradyasystole and no respiration but spontaneous circulation was restored at 10 min- utes after CPR started We started cerebral oriented resuscitation induding mild hypothermia(34℃), hemodilution, cal- cium channel blocker infusion On hospital day 4, patient's glasgow coma scale(GCS) was 4, On hospital day 7, Brain Magnetic Resonance Imaging(MRI) showed high signal intensity on T2WI, involving the bilateral basal ganglia After contrast adoministraton, marked enhancement can be seen at the lesion site Patient's glasgow coma scale(GCS) increased step by step to ~5 on 8th day, 7 on 1~4th day, 10 on 15th day, 13 on 17th day, 15 on 20th day. 40 days later the patient was discharged with minor neu~rologic abnormality in~duding hand tremor, dysphonia, amenorrhea and Mini Mental State Examination(MMSE) score(26). Long-term: Follow up revealed that all neurolgic functional abnormality induding hand tremor, dysphonia, amenor- rhea and MMSE score(26) is completely recovered on 123th day after episode of cardiopulmonary arrest