Рет қаралды 2,446
A patient presented with NSTEMI due to a severe lesion in a saphenous vein graft to the right posterior descending artery. The SVG lesions was treated with balloon angioplasty and the patient was referred for PCI of the native right coronary artery CTO. The SVG to the PDA was engaged with a multipurpose 8 French guide and the native RCA with an AL1 also 8 French guide using a bifemoral approach. The distal RCA CTO had a clear, tapered proximal cap, 40 mm length, bifurcation at the distal cap (PDA-right posterolateral) and the distal vessel was filling via the SVG-PDA. Antegrade wiring failed. The Carlino technique “softened” the proximal cap and a Fielder XT was subsequently knuckled across the CTO into the right posterolateral. To minimize the risk of occluding one of the side branches at the distal bifurcation we changed to retrograde crossing.
A retrograde Gaia Next 2 was advanced through a Sasuke dual lumen microcatheter and then through a Turnpike LP retrogradely into the distal RCA but the Turnpike LP and a Sapphire 1.0 mm balloon could not cross. A Micro Rx microcatheter was successfully advanced retrogradely into the distal RCA, followed by successful advancement of the Turnpike LP and successful guide extension reverse CART. After externalization and stenting into the PDA, flow into the right posterolateral was compromised but was subsequently restored after rewiring and balloon angioplasty. Due to significant competitive flow the SVG-PDA was coiled with a Penumbra coil.