The Tryton Side Branch Stent.

Abstract

The Tryton Side Branch Stent (Tryton Medical, Durham, NC, USA) is a dedicated bare metal stent developed to enhance the safety and efficacy of the two stent technique for the treatment of bifurcation lesions. The stenting technique, a "reverse culotte", secures the side branch (SB) with the placement of this dedicated stent in the proximal main vessel, across to the side branch while it facilitates the positioning of a conventional stent in the proximal to distal main vessel. The First-In-Man trial showed minimal SB late loss (0.17±0.35 mm) at six months while real world registry data reported target vessel revascularisation rates as low as 4% at the same time points and no stent thrombosis. The simplicity of the technique as well as the promising results have led to its widespread utilisation in Europe while in the US, a randomised trial is imminent and will serve for the device approval by the Food and Drug Administration.