病变出现支架内再狭窄 ISR ; In-stent Restenosis
医生们都向其余的病人推荐更老的裸金属支架因为它们似乎不易出现迟发的血栓危险。
Doctors have switched other patients to older bare metal stents that do not appear to have the late-clotting risk.
另一方面，47%的患者出现了再狭窄，而应用裸支架的患者再狭窄发生率据报道是28%，而应用涂层支架的是6%。
On the other hand, restenosis developed in 47% of patients, versus reported rates of 28% for bare metal stents and 6% after drug-eluting stents.
从2003年开始，这个市场就是由药物涂层支架占主导地位，因为在阻止出现新的阻塞方面，药物涂层支架要比纯金属支架的效果更好。
Since 2003, the market has been dominated by drug-coated devices because they do a better job of preventing new clogging than the bare-metal stents that preceded them.
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