📊 Evidence-Based Reference
Sofia Distal Access Catheter
Summary: The Sofia Distal Access Catheter by Microvention is a device used for intracranial access in endovascular procedures. It is primarily used in the treatment of acute ischemic stroke. Key evidence highlights its efficacy in direct aspiration techniques.
FDA Clearance Information
Pathway ?
510(k)
Number ?
K142014 ↗
Decision Date ?
October 10, 2014
Product Code ?
DQY Catheter, Percutaneous
Device Class ?
Class 2
Evidence ?
0 studies
The Sofia Distal Access Catheter was cleared by the FDA through the 510(k) pathway on October 10, 2014. It is manufactured by Microvention and is classified as a Class 2 device.
What It Is
The Sofia Distal Access Catheter is designed for intracranial access during endovascular procedures. It features a soft, torqueable design optimized for navigating cerebral vasculature. It is intended for use in neurointerventional procedures, particularly in the treatment of acute ischemic stroke.
FDA-Cleared Indications
- Intracranial access during endovascular procedures
- Delivery of diagnostic, therapeutic, or interventional devices and agents to the neurovasculature
Clinical Applications
- Providing distal intracranial access during neurointerventional procedures
- Supporting endovascular treatment of acute ischemic stroke when used with compatible thrombectomy systems
- Providing a pathway for aspiration-based clot removal when used according to the applicable system and procedure labeling
Reported off-label uses
- Use in selected distal or medium-vessel occlusions beyond the specific cleared labeling
- Use for selected intracranial embolization or rescue-access procedures outside the device's labeled indications
Off-label use: these uses are reported in practice or the literature but are not part of the FDA-cleared indications. Physicians may use a cleared device off-label based on their medical judgment; the manufacturer may not promote off-label uses.
Evidence Summary
The literature includes 13 studies, comprising retrospective and prospective analyses, case-control studies, and registry data. These studies span from 2021 to 2025, providing insights into the clinical, technical, and safety outcomes of the device.
Reported Outcomes
Published studies report that the Sofia Distal Access Catheter is effective in direct aspiration during endovascular treatment of acute ischemic stroke. Comparisons between different catheter sizes (5Fr vs. 6Fr) indicate similar efficacy and safety profiles. The device has shown promise in treating both distal and large vessel occlusions.
Safety Profile
Reported complications include device-related technical issues and procedural complications typical of endovascular interventions. However, the overall safety profile is consistent with other devices used in similar clinical scenarios.
Evidence Limitations
Current evidence is limited by the retrospective nature of many studies and the lack of large-scale randomized controlled trials. Further research is needed to establish long-term outcomes and to compare the device directly with alternative treatment methods.
Practical Considerations
- The catheter is available in different configurations and inner diameters; the selected size must match the guide catheter, access system, target anatomy, and intended therapy.
- It is advanced over a guidewire under fluoroscopic guidance, commonly through femoral or radial arterial access, and requires careful handling in tortuous or diseased vessels.
- Compatibility with aspiration pumps, stent-retriever systems, guidewires, and other accessories should be confirmed before use.
- MRI safety depends on the specific catheter model and whether it remains in the patient; users should follow the current manufacturer labeling and institutional MRI policy.
- Potential complications include vascular injury, dissection, perforation, embolization, thrombosis, intracranial hemorrhage, infection, and access-site bleeding.
Frequently Asked Questions
What are the clinical indications for Sofia Distal Access Catheter?
The Sofia Distal Access Catheter is indicated for use in neurointerventional procedures, particularly for direct aspiration thrombectomy in acute ischemic stroke.
What outcomes have been reported in clinical studies?
Clinical studies have reported effective outcomes in direct aspiration techniques for acute ischemic stroke, with similar efficacy between different catheter sizes.
What complications have been reported?
Reported complications include device-related technical issues and procedural complications, though the safety profile is generally favorable.
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.