If<unk>  occurs without a stent, it is usually treated with more angioplasty. This treatment is also used if<unk>  occurs at either the proximal or distal end of the stent. If<unk>  occurs within a stent (also known as in-stent stenosis), it may be treated with repeated angioplasty and insertion of another stent inside the original, often with a drug-eluting stent. Over the past 5 years, ISR is increasingly treated with a drug-coated balloon (DCB), which is a balloon coated with the same anticancer drugs that prevent<unk> , such as Paclitaxel. The balloon avoids the need for a double layer of metal which is used when an in-stent<unk>  is treated with another stent within the original stent. Additionally, DCB treatment does not leave an implant in the body and is designed for a faster drug delivery. Alternative treatments include brachytherapy, or intracoronary radiation. The radiation kills cells and inhibits tissue growth (similar to a patient undergoing cancer therapy).
Restenosis
Side strain
Splenosis
Dysplasia
Cavitation 
Subluxation
Anaplasia
Friction