Contrast neurotoxicity following percutaneous revascularization.

adenosine in the ostial lesions, and in sufficiently high doses if by the intracoronary method. Some studies have shown that intracoronary adenosine infusion does not attain the maximum hyperaemic state2,3 and that, as the team in Murcia has shown,4 only doses much higher than those initially recommended (>60 μg) achieve that effect. Finally, with respect to the technique to be used, one should use that with which he or she is most familiar and experienced. According to publications, the cut-off value for the ICUS would be 6 mm2 of the luminal area. Nevertheless, there are particular situations in which one technique or another might be preferable, such as cases of morphologically complex defects or those in which “artefacts” are suspected (bifurcations, ostium, calcifications) where ICUS might be more useful, or when percutaneous revascularisation is considered in the case of a significant defect, given that ICUS is of considerable help in guiding the process and assessing its results.