![]() In all 7 Fr variants, the 1.25 mm burr passed easily. (C) The 6 Fr GuideLiner (arrowhead) and the 8 Fr. In 2 cases, we observed resistance during forward and backward movement (6 Fr Guideliner and 6 Fr Guidon). (B) A 6 Fr GuideLiner (arrowhead) is advanced inside an 8 Fr GuideLiner (arrow) into the guide catheter. A 6 Fr guide catheter extension was then advanced through the extreme angulation at the SVG anastomosis using a distal-anchor technique and assuming a "candy cane" configuration, enabling stent delivery. When attempting the 1.25 mm burr, only in the 6 Fr Telescope extension it was impossible to introduce the burr into the extension (Figure 2). In the presented case, a 180° anastomotic bend in the saphenous vein graft resulted in several failed attempts at stent delivery. The extension comprises an inner polytetrafluoroethylene (Teflon) lining, surrounded by a stainless-steel coil, and an outer layer of Pebax polymer. Guide catheter extensions, such as the GuideLiner, can facilitate equipment delivery. A 6 Fr guide catheter extension was then advanced through the extreme angulation at the SVG anastomosis using a distal-anchor technique and assuming a "candy cane" configuration, enabling stent delivery.ĪB - Stent delivery to a native coronary artery lesion located proximal to the anastomosis of a bypass graft can be challenging due to severe tortuosity. In the presented case, a 180° anastomotic bend in the saphenous vein graft resulted in several failed attempts at stent delivery. This case report describes a successful deployment of a PTFE-covered stent using a 6 Fr GuideLiner catheter to seal coronary perforation. To facilitate stent delivery, a guide extension catheter (GuideLiner catheter) through a 6 Fr guiding catheter has been used. Guide catheter extensions, such as the GuideLiner, can facilitate equipment delivery. However, the high profile and low flexibility compromise its deliverability. The left panel shows the devices before assembly and right panel shows the devices assembled. N2 - Stent delivery to a native coronary artery lesion located proximal to the anastomosis of a bypass graft can be challenging due to severe tortuosity. The motherdaughtergranddaughter double GuideLiner technique requires a 0.014 guidewire (A), a Turnpike microcatheter (B), a 6 Fr GuideLiner (C), and an 8F GuideLiner (D). Previous studies documented safety and efficacy of the GuideLiner. ![]() ![]() T1 - Candy Cane Guide Catheter Extension for Stent Delivery with the Guidezilla catheter combined with 6 Fr mother-guide catheters (41 EBU. To facilitate stent delivery, a guide extension catheter (GuideLiner catheter) through a 6 Fr guiding catheter has been used. ![]()
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