Currently, coronary stent implantation is employed in approximately 90% of percutaneous coronary intervention (PCI) cases. Despite the use of drug-eluting stents (DES), coronary in-stent restenosis (ISR) remains an Achilles’ heel of PCI and can occur in about 10% of patients in the real-world population. We explored the efficacy of a novel approach using drug-eluting balloon (DEB) in the treatment of our patients with ISR.
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