Selection of coronary stents
Antonio Colombo, MD, FACC*,*,
Goran Stankovic, MD* and
Jeffrey W. Moses, MD, FACC
* Columbus Hospital, Milan, Italy
Lenox Hill Hospital, New York, New York, USA
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Figure 1 (A) Baseline angiogram of a lesion (arrow) in the proximal right coronary artery. (B) Angiogram after implantation of a nine-cell, 16-mm-long NIR stent. The hinge site at the end of the stent is clear (arrow).
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Figure 2 Four-month follow-up angiogram of the lesion in Figure 1, showing restenosis at the hinge site (arrow).
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Figure 3 Length of balloon protrusion for commonly used stents.
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Figure 4 Area of the stent cell at nominal (solid bars) and maximal (open bars) expansion for several slotted-tube stents.
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Figure 5 Examples of stent strut prolapse from the main branch toward the side branch after "kissing" balloon inflation (arrows). (A) The Sorin Sirius Carbostent (Sorin Biomedica Cardio, Saluggia, Italy). (B) The beStent 2 (Medtronic AVE, Minneapolis, Minnesota). (C) The BxVelocity (Cordis, a Johnson & Johnson Company, Warren, New Jersey). (D) The Multilink Tetra stent (Guidant, Temecula, California).
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Figure 6 Restenosis rates in randomized trials of small-vessel stenting versus balloon PTCA. beSMART = BEstent in SMall ARTeries; SISA = Stenting In Small Arteries; RAP = Restenosis en Arterias Pequenas; ISAR-SMART = Intracoronary Stenting or Angioplasty for Restenosis reduction in SMall ARTeries; PTCA = percutaneous transluminal coronary angioplasty.
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Figure 7 A stent with the covering membrane made of bovine pericardium.
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Figure 8 Drug delivery to the vessel wall with various stent designs. The color chart corresponds to the amount of drug concentration.
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