This study represents the largest European data set of patients treated with RA in the DES era. RA followed by DES implantation in calcified coronary lesions appears to be feasible and effective, with a high rate of procedural success and low incidence of TLR and MACE at long term considering this complex patient and lesion subset.
We may state from this limited experience that a multi-vessel stenting approach for patients with acute STEMI and multi-vessel disease is feasible and probably safe during routine clinical practice. Our data suggest that this approach may help to limit the infarct size. However, larger studies, perhaps using drug-eluting stents, are still needed to further evaluate the safety and efficiency of this procedure, and whether it is associated with a lower need of subsequent revascularization and lower costs.
Shortened procedural duration and reduction of coronary dissections were observed with planned RA for selected lesions. However, this strategy does not affect long-term clinical outcomes.
Entrapment of a rotablation burr is a rare but very serious complication of RA. Operators performing RA should be aware of this risk and be prepared to manage it adequately. In our experience, the risk seems to be higher when rotablating freshly implanted underexpanded stents.
In our practice LSD was a rare observation only seen with the Promus Element stent. When subjected to longitudinal compression in a bench test all contemporary stents can be compressed. Compression of Promus Element occurs at a lower force, but it is the only stent where deformations are detected with x ray. Postdilatation can partially improve LSD.
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