Ionic or non-ionic contrast media in stent placement

In his letter to the editor, Dr Schräder poses the rhetorical question of whether the results of our study are ‘true’. To substantiate his doubts, he points out that different non-ionic contrast media (CM) were used in our study and calls for a subgroup analysis. In addition, he refers to the data obtained during the COURT trial. I am very happy to be given this opportunity to discuss the interesting results of the COURT trial since these results were not available when we submitted our paper. The second part of Dr Schräder’s criticism has to do with the sequential use of CM.