Femoral access was frequently used in 5-4F GEC group than 5F GEC group (6.4% vs. Most procedures were performed via radial access. Procedural data and complications associated with Expressman use are outlined in Table Table3. Indications for guide extension catheter use in PCI The inner diameter is tapered from proximal (0.058″) to the distal tip (0.050″), which can accommodate for most stent delivery (Fig. The Expressman™ 5-4F tapered GEC is a novel designed catheter used to provide additional backup support and access to distal lesions. A 5-4F tapered GEC may balance the backup support and trackability between 4F and 5F GEC.Įxpressman GEC is a 150-cm catheter with similar outer diameter (1.70 mm) and inner diameter (1.42 mm) as compared to Guideliner V3 Catheter. The 35 cm rapid exchange segment and stainless steel braided layer design enable increased support and smooth delivery, which enable procedural success in the majority of type B2/C coronary lesion. However, the relative increase in the backup support was lower in the 4-in-6 system than 5-in-6 system. Pilot studies reported that 4F GEC facilitated stent delivery and thrombus aspiration. The size of most GEC is range from 5F to 8F. Several GEC are commercially available, including Guidezilla II (Boston Scientific, USA), GuideLiner V3 (Teleflex, USA), Telescope GEC, (Medtronic, USA) and Expressman GEC (APT, China). The use of GEC facilitated successful completion of complex percutaneous coronary intervention. Many strategies are applied to cope with insufficient backup support, including active/passive guiding-catheter support, buddy wire technique, anchor balloon technique and the mother–child guide extension catheter (GEC) technique. It is a dilemma echoed by interventional cardiologists when stent delivery is difficult in complex coronary lesion. Sufficient backup support is crucial for guide catheter in percutaneous coronary intervention (PCI). The Creative Commons Public Domain Dedication waiver ( ) applies to the data made available in this article, unless otherwise stated in a credit line to the data. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.
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