Emergency heart attack treatment is effective in patients with cancer, yet many do not receive it. That’s the finding of a study published on World Cancer Day in European Heart Journal—Acute Cardiovascular Care, a journal of the European Society of Cardiology (ESC).1 This was the first study to compare the rates of primary percutaneous coronary intervention (PCI) in heart attack patients with and without cancer, and to examine the comparative effectiveness and safety of treatment.