Related Experiment Video
Updated: Jun 8, 2026

Novel Percutaneous Approach for Deployment of 3D Printed Coronary Stenosis Implants in Swine Models of Ischemic Heart Disease
Published on: February 18, 2020
The GuideLiner "child" catheter for percutaneous coronary intervention - early clinical experience
Sanjay Kumar1, Diana A Gorog, Gioel G Secco
1Department of Cardiology, East and North Hertfordshire NHS Trust, Stevenage SG1 4AB, Hertfordshire, United Kingdom.
Insights
A new GuideLiner catheter improves stent delivery in complex coronary arteries. This "child" catheter provides crucial support, overcoming challenges in calcified and tortuous anatomy during percutaneous coronary intervention.
Area of Science:
- Interventional Cardiology
- Medical Device Technology
Background:
- Percutaneous coronary intervention (PCI) success depends on adequate guiding catheter support.
- Complex coronary anatomy, including calcification and tortuosity, often impedes deep vessel intubation and stent delivery.
- Existing methods for deep intubation carry risks like coronary dissection.
Observation:
- A novel "child" support catheter, the GuideLiner, was developed to enhance guiding catheter support.
- This catheter is designed to be advanced through a standard guiding catheter for deep intubation.
- The GuideLiner aims to provide superior back-up support for stent delivery in challenging anatomies.
Findings:
- The GuideLiner catheter was successfully utilized in a series of 4 complex PCI cases.
- The device facilitated deep vessel intubation, providing necessary support for stent delivery.
- No procedural complications related to the GuideLiner were reported in these cases.
Implications:
- The GuideLiner offers a potential solution for improving PCI success rates in difficult coronary anatomies.
- This device may reduce the need for more invasive procedures or alternative strategies.
- Further studies are warranted to evaluate the long-term efficacy and safety of the GuideLiner system.
Abstract:
The failure to deliver a stent across the target lesion during percutaneous coronary intervention, especially in arteries with calcified tortuous anatomy, is often due to insufficient back-up support from the guiding catheter. Deep-vessel intubation with the guiding catheter may overcome this problem, but risks coronary dissection. The Heartrail II (Terumo, Japan) "five-in-six catheter system" (or "mother-and-child" catheter) comprises a flexible-tipped long 5 Fr catheter advanced through a standard 6 Fr guiding catheter to deeply intubate the target vessel, thus providing enough back-up support to enable stent delivery. Here we describe a newly developed "child" support catheter (The GuideLiner; Vascular Solutions, Inc., Minneapolis, Minnesota), report its successful use in a series of 4 difficult cases and discuss practical tips to optimize its performance.
Related Concept Videos
Cardiac Catheterization III: Left Heart Catheterization
Cardiac Catheterization I: Pre-Procedure Overview
Parentral Nutrition: Centeral and Peripheral Parental Nutrition
PN can be administered through two primary routes:
1. Central Parenteral Nutrition (CPN):
CPN involves delivering a high concentration of nutrients through a large vein. This is typically achieved using a Peripherally Inserted Central Catheter (PICC) or,...
Cardiac Catheterization IV: Nursing Management
Cardiac Catheterization II: Right Heart Catheterization

