β-Blockers after myocardial infarction with preserved or mildly reduced left ventricular ejection fraction: Fragility of contemporary evidence.
Zuin; Chopard; Drachman; Rigatelli; De Luca; Temporelli; De Caterina; Piazza · 2026 · American heart journal plus : cardiology research and practice
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract (excerpt)
β-Blockers have been traditionally prescribed after acute myocardial infarction (MI), but contemporary evidence in patients with preserved or mildly reduced left ventricular ejection fraction (LVEF ≥40%) have not provided…
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Metadata source: PubMed · DOI 10.1016/j.ahjo.2026.100810