ArticleJournal of neurointerventional surgery2021
The novel Tenzing 7 delivery catheter designed to deliver intermediate catheters to the face of embolus without crossing: clinical performance predicted in anatomically challenging model.
Article in Journal of neurointerventional surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.
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Who cites it
17 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Efficacy of the Route 92 reperfusion system in acute ischemic stroke due to large vessel occlusion: a systematic review and meta-analysis.Neurosurgical review · 2026Pooled it
- Improved catheter delivery for aspiration thrombectomy using Tenzing 7 ledge reducing catheter and FreeClimb 70.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2026Article
- Tenzing 7 delivery catheter with or without a leading microwire for single pass aspiration thrombectomy: A multicenter experience.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2026Article
- The Aristotle 18 and 24 microwires in neuroIntervention: Early experience at a single centre.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2026Article
- Intracranial Dotter angioplasty using Tenzing (Tenzingplasty) for acute ischemic stroke with underlying intracranial atherosclerotic disease.Journal of neurointerventional surgery · 2026Article
- Tenzingplasty for cerebral vasospasm following subarachnoid hemorrhage or meningitis: multicenter initial experience.Journal of neurointerventional surgery · 2026Article
- Multicenter experience of the Monopoint reperfusion system in acute large vessel occlusion stroke thrombectomy.Journal of neurointerventional surgery · 2026Article
- Steam Shaping of Angled-Tip Aspiration Catheter to Improve Deliverability in Treating Acute Ischemic Stroke.Neurosurgery practice · 2025Article
- Tenzing Assisted Delivery of Aspiration (TADA) technique for thrombectomy of medium vessel occlusions using the Freeclimb 54 catheter: multicenter experience.Journal of neurointerventional surgery · 2025Article
- Venous Sinus Stenting Using a Ledge-Reducing Catheter, 0.088-in. Catheter-Extender With an External Single Point of Control: Technique and Multicenter Clinical Experience.Stroke (Hoboken, N.J.) · 2025Article
- Tenzing 7 Delivery Catheter Performance Across Tortuosity Indices.Stroke (Hoboken, N.J.) · 2024Article
- Aristotle-Only Direct Aspiration First-Pass Technique (AO-ADAPT) for Endovascular Mechanical Thrombectomy: A Technical Series of a Novel Technique Demonstrating Safety and Efficacy.Stroke (Hoboken, N.J.) · 2024Article
- Novel Tenzing 7 Delivery Catheter for Thrombectomy in Acute Stroke: A Clinical Multicenter Experience.Stroke (Hoboken, N.J.) · 2023Article
- Combined technique as first approach in mechanical thrombectomy: Efficacy and safety of REACT catheter combined with stent retriever.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2023Article
- AXS Vecta 0.071-0.074 Inch Aspiration Catheters for Mechanical Thrombectomy: Case Series and Literature Review.Neurointervention · 2023Article
- REACT Aspiration Catheters: Clinical Experience and Technical Considerations.Neurointervention · 2022Review
- A Review of the Advancements in theFrontiers in medical technology · 2022Review
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Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIn large vessel occlusionstroke, navigation of aspiration catheters (AC) can be impeded by vessel tortuosity and the ophthalmic artery origin. A novel tapered delivery catheter was designed to facilitate delivery without disturbing the embolus. We assessed AC deliverability in vitro and validated the observations in a first-in-human experience.
methodsIn a vascular model with three challenging craniocervical scenarios, two commercial AC were advanced from the carotid to the middle cerebral artery by four neurointerventionalists. Catheter deliverability with standard microwire and microcatheter (MC) combinations and the Tenzing 7 (T7) Delivery Catheter (Route 92 Medical, San Mateo, CA) were compared. Operators rated aspects of catheter deliverability on a 5-point scale. Results were compared with device delivery patterns at a neurovascular center before and after clinical introduction of T7.
resultsIn vitro, success rate and speed were higher with T7 (96%; mean 30±10 s) than with MC (65%; 72±47 s, p<0.001 each), with fewer interactions with the occlusion site (T7: 54% vs MC: 77%, p=0.004). T7 received superior ratings regarding carotid artery deflection (T7: 2, IQR1-3 vs MC: 3, IQR2-3, p<0.001), guide catheter pushback (T7: 2, IQR1-3 vs MC: 3, IQR3-3, p<0.001) and ophthalmic artery passage (T7: 1.5, IQR1-2 vs MC: 4, IQR3-5, p<0.001). Before introduction of T7 at a single center, delivery of AC to a large vessel occlusion without crossing was achieved in 15/123 cases (12%). With T7, this rate was 28/31 patients (90.3%).
conclusionCompared with microcatheter and microwire combinations, T7 improves aspiration catheter delivery in vitro, minimizing the need to cross the occlusion. Initial clinical experience appears to validate the model's observations.
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