A common technique to improve the local blood flow through stenotic arteries involves the implantation of a metallic scaffold known as a stent. These devices have shown excellent results in unbranched vessels. However, the treatment of coronary bifurcation lesions remains an enormous challenge and is generally associated with an increased complication rate. Many different techniques have been proposed in clinical literature, but all the suggested methodologies have specific limitations [1]. In many cases, a stent is deployed in the main branch (MB) and logically, this compromises the side branch (SB) patency. This is a frequently encountered situation that can be improved by balloon dilatation through the side of the MB stent (fig. 1). However, such balloon inflation may result in unwanted distortions of the stent [2].

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