Related Experiment Video
Updated: Apr 1, 2026
06:59
Catheter-based Endovascular Angioplasty for Fibrosing Mediastinitis-associated Pulmonary Vein Stenosis
Published on: August 26, 2025
725
Aqueductal stenting with an intra-catheter endoscope--a technical note
Sebastian Antes1, Mohamed Salah1, Stefan Linsler1
1Department of Neurosurgery, Faculty of Medicine, Saarland University Medical Center and Saarland University, Kirrberger Straße, Gebäude 90.5, 66421, Homburg, Germany.
Summary
A new intracatheter endoscope technique facilitates aqueductal stenting for stenosis in four of six patients, offering an easier, safer alternative to traditional methods.
Area of Science:
- Neurosurgery
- Medical Devices
- Endoscopic Procedures
Background:
- Aqueductoplasty and aqueductal stenting are established treatments for short-segment aqueductal stenosis and isolated fourth ventricle.
- Conventional neuroendoscopic techniques involve modifications using working sheaths for instrument introduction.
- Current recommendations favor Fogarty balloon catheters or flexible endoscopes for navigating narrowed aqueducts.
Purpose of the Study:
- To introduce and evaluate a novel intracatheter endoscope technique for aqueductal stenting.
- To assess the feasibility, safety, and efficacy of this new method in patients with aqueductal stenosis.
Main Methods:
- A technical report detailing a new aqueductal stenting technique using an intracatheter endoscope.
- Six patients with aqueductal stenosis underwent the procedure with the new device.
Main Results:
- Successful aqueductal stenting was achieved in 4 out of 6 patients (66.7%).
- The technique demonstrated ease of handling and a short learning curve, with no complications reported.
- All successful stents functioned appropriately, while two cases required alternative interventions (ETV or shunting).
Conclusions:
- The novel intracatheter endoscope combined with a ventricular catheter provides an elegant and effective method for aqueductal stenting.
- This technique may render older methods using large or flexible endoscopes, balloons, or specialized stent-placement instruments obsolete in select cases.
