Centro Nacional de Investigaciones Cardiovasculares Carlos III (F.S.P.) Nov 10 2025 A major analysis led by the Centro Nacional de Investigaciones Cardiovasculares (CNIC), in collaboration with international institutions, has pooled data from 17,801 myocardial infarction survivors with preserved cardiac function enrolled in five global clinical trials. The study concludes that beta-blockers offer no clinical benefit for this patient group, which today represents the majority of infarction