The evaluation of the CPK-peak time (CPK-p) during Acute Myocardial Infarction (AMI) is now considered as a reliable method to identify ischemic myocardial tissue reperfusion both spontaneous and pharmacologically-induced. The purpose of this study is to assess the clinical significance of this index over a non selected group of patients (pts) affected by a first episode of AMI looking for some variables possibly connected with it. This study includes 114 pts hospitalized in our Unit Coronary Care (UCC) and diagnosed as affected by AMI and not treated with anticoagulant and/or fibrinolytic drugs. They were divided according to CPK-p into 2 groups: group A (23 pts, 18M 5F, mean age 64.2 +/- 10.1y; CPK-p 11.9 +/- 3.3h, AMI Anterior 14/AMI Inferior 9) and group B (91 pts, 85M 6F, mean age 64 +/- 10.3y; CPK-p 25.7 +/- 4.5h, AMI Anterior 50/AMI Inferior 41). Moreover, a third group C has been studied including pts with similar clinical characteristics who underwent thrombolysis by intravenous infusion of Streptokinase (48 pts, 39M 9F, mean age 62.7 +/- 10.6y; CPK-p 15.2 +/- 7h, AMI Anterior 28/AMI Inferior 20). For each pt CKP-p has been evaluated as well as the pre-UCC time (T-pc), the maximum value of released CPK (CPK-max), the incidence of new coronary events such as angina, re-AMI, sudden death detected between the 1st (NEC-I) and the 6th month (NEC-II) after the acute event.(ABSTRACT TRUNCATED AT 250 WORDS)
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