Stent upgrade

Coronary arteries which block again after angioplasty may be best treated by placing a drug-eluting stent inside the original bare-metal stent, according to two trials presented at the conference.

Adding a paclitaxel-eluting stent reduced angiographic restenosis at nine months by 53 per cent more than vascular brachytherapy (VBT), which delivers radiation by catheter to inhibit the growth of smooth muscle cells (http://jama.ama-assn.org/). Pictured is a coloured 3D CT scan of a stent (orange) placed in the anterior intraventricular artery of a patient with heart disease.

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