First steps in the management of pericardial effusion: who was first to relieve the pericardial sac--Larrey or Romero?

Early reports told us that the first pericardiotomy was performed by Baron Dominique Jean Larrey, Napoleon's chief military surgeon. In this article, we reveal a previous operation of that kind and its publication by Francisco Romero, who had a 9-year head start over Larrey's performance. The aim of this article was to briefly review the two-century-old history of pericardial fenestration.