We would like to congratulate Marchiori et al[1] for the successful conduction of a rare and serious complication
which happened during hemodynamic procedure. Nevertheless, we consider that some
considerations about this case should be made.The stent migration, precipitated by know predictors[2], tends to follow the antegrade coronary flow. In this case, the
opposite situation has occurred, with stent embolization to the aorta and brachial
arteries. Therefore, there are some questions to be presented. Is there any possibility
that the balloon catheter was inadvertently pulled during post-dilation? Was there
spontaneous migration of the stent or recovery of the device through the snare loop or
inflated balloon? Why was a conventional stent used for treating the left coronary
trunk, as there is evidence advocating the use of pharmacological devices?[3]