đź“Š Evidence-Based Reference
Step-Tip Chronic Hemodialysis Catheter
Arrow International
Summary: The step-tip chronic hemodialysis catheter by Arrow International is used for long-term vascular access in hemodialysis patients. Key evidence highlights include studies on catheter performance and complications.
FDA Clearance Information
Pathway ?
510(k)
Number ?
K040666 ↗
Decision Date ?
May 14, 2004
Product Code ?
MSD Catheter, Hemodialysis, Implanted
Device Class ?
Class 2
Evidence ?
0 studies
The step-tip chronic hemodialysis catheter was cleared by the FDA through the 510(k) pathway on May 14, 2004. It is manufactured by Arrow International and classified as a Class 2 medical device.
What It Is
The step-tip chronic hemodialysis catheter is a medical device designed to provide long-term vascular access for patients undergoing hemodialysis. It features a step-tip design intended to optimize blood flow and reduce complications.
FDA-Cleared Indications
- Use for vascular access in patients receiving chronic hemodialysis.
- Use when hemodialysis access is needed through a central vein.
- The catheter is an implanted hemodialysis catheter regulated under 21 CFR 876.5540, product code MSD.
Clinical Applications
- Long-term central venous access for hemodialysis.
- Hemodialysis in patients awaiting maturation of an arteriovenous fistula or graft.
- Hemodialysis when creation or use of an arteriovenous fistula or graft is not feasible.
- Repeated dialysis treatments through a tunneled catheter placed in a central vein.
Evidence Summary
The available literature includes five studies, comprising various study types such as RCTs and retrospective analyses, conducted between 2013 and 2025. These studies focus on catheter performance, complications, and design comparisons.
Reported Outcomes
Published studies report that step-tip catheters are associated with improved blood flow dynamics and reduced recirculation compared to other designs. However, issues such as thrombosis and catheter-related infections remain prevalent.
Safety Profile
Reported complications include thrombosis, fibrin sheath formation, and catheter-related infections. These issues can lead to catheter dysfunction and necessitate removal or replacement.
Evidence Limitations
The evidence is limited by the variability in study designs and small sample sizes. Further research is needed to explore long-term outcomes and compare different catheter designs in diverse patient populations.
Practical Considerations
- Catheter length and configuration should match the access vein, exit site, patient anatomy, and prescribed dialysis blood-flow requirements.
- Placement is generally performed with ultrasound and fluoroscopic guidance, using local anesthesia with or without moderate sedation.
- Common central venous access sites include the internal jugular veins; femoral access may be used in selected circumstances. Subclavian access is often avoided when future arteriovenous access is possible.
- The catheter should be handled using strict sterile technique and locked according to the dialysis-unit protocol to reduce infection and thrombosis risk.
- MRI safety depends on the specific catheter model and its components. Confirm the current manufacturer labeling before MRI; do not assume that every chronic dialysis catheter is MR safe or MR conditional.
Frequently Asked Questions
What are the clinical indications for step-tip chronic hemodialysis catheter?
The catheter is indicated for providing long-term vascular access in patients undergoing hemodialysis, particularly when arteriovenous access is not possible.
What outcomes have been reported in clinical studies?
Studies have reported improved blood flow and reduced recirculation with step-tip catheters, though complications like thrombosis remain a concern.
What complications have been reported?
Safety data indicate complications such as thrombosis, fibrin sheath formation, and catheter-related infections.
Disclaimer: This page compiles publicly available regulatory and published clinical evidence for educational reference.
It does not constitute medical advice, product endorsement, or a recommendation for clinical use.
Always consult manufacturer documentation and clinical judgment for patient care decisions.