When someone has a major heart attack (STEMI) and multiple blocked arteries, doctors face a tough call: should they fix all the blockages right away, or wait a bit? This question is especially urgent if the patient also shows signs of heart failure—like being short of breath or having fluid in the lungs—when they arrive at the hospital.
A trial looked at nearly 1,000 patients in this exact situation. It found that about one-third of them had heart failure at admission. Overall, these patients were at higher risk for serious problems. The key finding was about timing. For patients with heart failure, fixing all blockages immediately was linked to worse outcomes. Within a year, 22.8% of these patients who got immediate treatment experienced a major event (death, another heart attack, or an unplanned procedure) compared to 13.3% of those who had a staged, or delayed, approach.
For patients without heart failure, the timing didn't seem to make a significant difference in their risk. The study concludes that the worse results from immediate treatment might be specific to patients who already have heart failure when they come in. More research is needed to confirm if immediate treatment is as safe as waiting for patients who aren't in heart failure.