Reacción a "Stem cell therapy is associated with a lower risk of heart failure after a heart attack, according to a study"

This is not a high-quality article. It simply adds data on the effect of stem cells on cardiac function after a heart attack. It has long been known that they do something, but it is not well understood why, or even whether these cells survive nested in the myocardium or only function by secreting substances that promote remodeling.

There are several methodological limitations: the ratio of patients evaluated to those included, the fact that the primary parameter is exclusively clinical without objective criteria ("heart failure") without even measuring BNP (brain natriuretic peptide), lack of blinding, no effect on mortality due to the small sample size, etc.