Of the 65 cases with reported GuideLiner-related issues, 15 (23%) involved the inability to pass equipment through or damage to percutaneous coronary intervention (PCI) devices in the GuideLiner catheter, 38 (58%) involved GuideLiner catheter fracture, 9 (14%) involved coronary artery dissection, 2 (3%) involved coronary artery perforation, and 1 (1.5%) involved thrombus formation in the catheter. The US Food and Drug Administration (FDA) Manufacturer and User Facility Device Experience (MAUDE) database was queried for reported events. We aimed to assess the reported complications and event modes for the GuideLiner and Guidezilla extension catheters. It can be recommended as an important additional tool in advanced interventional cardiology such as antegrade and retrograde CTO-PCI if other techniques like anchor balloon or anchor wire are not possible.
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. 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.
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