Stent

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ΕΤΥΜΟΛΟΓΙΑ

A London dentist, Charles Stent, devised a little metal structure to hold in place gingival grafts.[1]

A wire or other tube used to hold open a tubular organ. With advances in metallurgy we now have self-expanding metal stents (SEMS).

Contents

Applications

Gastric stent
Vascular stent in left iliac artery following angioplasty.
Stretched coronary artery stent showing thrombus within it.

Most commonly used in coronary arteries, but also in the common bile duct, ureters and trachea and in palliation of GI malignancies, e.g. oesophageal and colonic carcinoma (colonic self-expanding metal stents).

Drug-eluting stents

A type of stent where a coating releases a drug. This might be an antimicrobial substance or with vascular stents a drug with anti-proliferative properties.

In the indication of percutaneous coronary intervention second generation everolimus-eluting stents are superior to paclitaxel-eluting stents[2]. Sirolimus-eluting stents seem better than paclitaxel-eluting stents in non-diabetics[3].


See Also

References

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