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[Comment] Bioresorbable scaffolds: in search of event-free dissolution

Celebrating its 40th anniversary, percutaneous coronary intervention has evolved from balloon angioplasty over bare metal stents to the routine use of drug-eluting stents. Coronary artery stents introduced in the late 1980s marked an important milestone in the development of percutaneous coronary intervention by scaffolding the treated arterial segment and thereby eliminating the risk of abrupt vessel closure due to dissections following balloon angioplasty as well as negative remodelling due to elastic recoil.