Improved delivery of the Neuroform 3 stent: technical note

Area of Science:

• Neurosurgery
• Interventional Neuroradiology
• Medical Device Engineering

Background:

• Intracranial stents are crucial for treating wide-neck aneurysms not amenable to coiling alone.
• Technical challenges with stent delivery systems persist, impacting treatment success.
• The Neuroform 3 stent system, widely used, has reported deployment failures despite modifications.

Purpose of the Study:

• To describe and evaluate a simple back-table modification of the Neuroform 3 stent delivery system.
• To assess the impact of this modification on stent deliverability and deployment success.

Main Methods:

• Retrospective review of a cerebrovascular database for all Neuroform 3 stent uses.
• Identification of cases where the described back-table modification was applied.
• Analysis of stent placement failures related to delivery system trackability.

Main Results:

• 139 Neuroform 3 stents were placed using the modified technique.
• A technical failure rate of 2.2% was observed, with only three instances of placement failure.
• The modification was associated with improved trackability and navigation.

Conclusions:

• A simple back-table modification can enhance the Neuroform 3 delivery system's flexibility.
• This technique may improve navigation through complex intracranial vasculature.
• The modification shows potential for increasing successful stent deployment rates in aneurysm embolization.