Lazarus syndrome (the Lazarus heart), also known as autoresuscitation after failed cardiopulmonary resuscitation,[1] is the spontaneous return of a normal cardiac rhythm after failed attempts at resuscitation. It is also used to refer to the spontaneous return of cardiac activity after the patient has been pronounced dead.[2] Its occurrence has been noted in medical literature at least 38 times since 1982.[3][4] It takes its name from Lazarus who, according to the New Testament, was raised from the dead by Jesus.[5]