Objective: To investigate the changes of serum myocardium enzyme profile and cardiac troponin I(cTnI) in resuscitated patients

and explore the diagnostic value of cTnI on myocardial injury in patients after cardiopulmonary resuscitation.Methods: Standard cardiopulmonary resuscitation was performed in 82 patients with cardia arrest in emergency ICU.Serum myocardium enzymes and cTnI were determined at the point of cardia arrest and after the return of spontaneous circulation(ROSC).Results: The patients′ plasma cTnI levels was elevated significantly 1 hour after ROSC

and CK?CK-MB?LDH and AST level were increased 2 hours after CPR.The level of the elevated cTnI was responsive to the degree of myocardial injury and the fatality ratio of resuscitated patients.Conclusion: Acute myocardial injuries were present in all resuscitated patients.The level of plasma cTnI could reflect the degree of myocardial injury.