Cardiac arrest (CA) refers to abrupt cessation of cardiac pump function. Most sudden deaths in young people are of cardiac origin, at the same time most patients have unrecognised prior heart disease. We report a case of a 17-year-old boy with cardiac arrest induced by ventricular fibrillation. Sinus rhythm was restored after one hour's resuscitation. Based upon elevated necrotic markers, ECG changes and echocardiographic examinations the diagnosis of anterolateral myocardial infarction was established. Coronary angiography revealed only a small myocardial bridge. The patient in a poor general and unconscious state was transferred to the Coronary Care Unit of the Department of Coronary Disease. The patient improved after treatment and without neurological deficit or circulatory insufficiency continued cardiac rehabilitation in a spa hospital. The paper reviews differential diagnosis of cardiac arrest, treatment modalities and describes the course of hospitalisation.