Its use is indicated in cases in which back-up force needs to be strengthened to pass a CTO despite advanced calcification. The GL catheter is an adjunctive interventional device which enhances and amplifies CTO-PCI. The overall success rate was 88.9 ± 0.32% there were no relevant complications. ![]() All procedures were performed femorally the retrograde approach was used in 27.8 ± 0.46% of cases. The Japanese CTO score reflecting lesion complexity was 3.56 ± 0.78. The GL is a coaxial, monorail guiding catheter extension delivered through a standard guiding catheter and is available in different sizes.Īlmost all lesions were classified as severely calcified (94.4 ± 0.24%). ![]() We examined 18 patients and used the GL catheter to overcome poor support and excessive friction in standardized antegrade and retrograde CTO procedures. The purpose of this study was to assess the feasibility of the GuideLiner (GL) catheter use. The final angiogram showed successful result.Failure of delivering a stent or a balloon across the target lesion during percutaneous coronary intervention (PCI) of chronic total occlusion (CTO), especially in arteries with calcified tortuous anatomy, is often due to insufficient backup support from the guiding catheter. We added Promus Premier 3.5x16mm at the injured site. We thought that it was because of the Guideliner catheter injury. After that, the angiogram revealed dissection and hematoma at proximal RCA. Then we deployed 2 stents separately at mid RCA, Promus Premier 3.0x16mm, 3.0x12mm. We could deliver Promus Premier® 2.25x32mm at posterolateral branch. After that we could get enough back up force to deliver the stent to the distal RCA. And then we progressed Guideliner to mid RCA with the help of anchoring technique which stabilized the guiding catheter by the 2.5mm balloon. At first we delivered Traveler® 2.5x15mm to posterolateral branch and dilated the lesion. We thought that we could “short cut” the severest tortuosity part, proximal RCA, by using the catheter. It is easier to use than conventional child catheter. After that, we used a Guideliner® a rapid exchange type child catheter. Sion®(Asahi) a0.014 inch wire could not cross the lesion without the help of Finecross® a micro catheter. The catheter can make a powerful back up by contacting with contralateral aortic wall with an aspect. We selected Profit RU 3.75®(GOODMAN) a special back up catheter for RCA. Before the procedure, we expected this PCI would require powerful backup force because of severe tortuosity and calcification. We performed PCI to RCA via right radial approach and 6 Fr short sheath was inserted.
0 Comments
Leave a Reply. |