The Exchange-Free Technique: A Novel Technique for Enhancing Surpass Flow Diverter Placement.
Aneurysm
endovascular treatment
flow diversion
flow diverter
stent
Journal
Asian journal of neurosurgery
ISSN: 1793-5482
Titre abrégé: Asian J Neurosurg
Pays: India
ID NLM: 101564712
Informations de publication
Date de publication:
Historique:
received:
31
12
2019
revised:
26
02
2020
accepted:
18
04
2020
entrez:
4
11
2020
pubmed:
5
11
2020
medline:
5
11
2020
Statut:
epublish
Résumé
Following flow diverter placement, approximately 20% of intracranial aneurysms remain as residual aneurysms at 1 year. Device malapposition is a cause of residual aneurysms after flow diversion. We present a new and straightforward technique (exchange-free technique [EFT]) to enhance apposition of the surpass flow diverter (SFD), the only over-the-wire flow diverter currently available. We deployed laser-cut mini stents through the inner deployment catheter of the SFD. This maneuver was performed simply by withdrawing the micro-guidewire from its lumen and replacing it with a mini-stent (stents deliverable through microcatheters with inner diameter of 0.0165 inches), without a need to re-cross the deployed SFD or an exchange maneuver. All aneurysms in which this technique was utilized were retrospectively reviewed. Twenty-eight patients (20 females) with 30 treated aneurysms were identified. The mean aneurysm diameter was 10.2 ± 6.6 mm. Technical success rate was 96.6% (29/30 aneurysms). There was no mortality or permanent morbidity related to the procedures. Except for the patient treated for an iatrogenic, surgery-related internal carotid artery pseudoaneurysm who died secondary to consequences of multiple surgeries, no cases of mortality or permanent morbidity were noted. Complete aneurysm occlusion rates were 78.2%, 82.1%, and 95.2% at 0-3, 3-6, and 9-12 months, respectively. None of the patients were re-treated. EFT is a simple and fast technique which was not associated with adverse effects in our series. The higher aneurysm obliteration rate obtained with EFT is probably the result of better wall apposition of the SFD.
Sections du résumé
BACKGROUND
BACKGROUND
Following flow diverter placement, approximately 20% of intracranial aneurysms remain as residual aneurysms at 1 year. Device malapposition is a cause of residual aneurysms after flow diversion. We present a new and straightforward technique (exchange-free technique [EFT]) to enhance apposition of the surpass flow diverter (SFD), the only over-the-wire flow diverter currently available.
MATERIALS AND METHODS
METHODS
We deployed laser-cut mini stents through the inner deployment catheter of the SFD. This maneuver was performed simply by withdrawing the micro-guidewire from its lumen and replacing it with a mini-stent (stents deliverable through microcatheters with inner diameter of 0.0165 inches), without a need to re-cross the deployed SFD or an exchange maneuver. All aneurysms in which this technique was utilized were retrospectively reviewed.
RESULTS
RESULTS
Twenty-eight patients (20 females) with 30 treated aneurysms were identified. The mean aneurysm diameter was 10.2 ± 6.6 mm. Technical success rate was 96.6% (29/30 aneurysms). There was no mortality or permanent morbidity related to the procedures. Except for the patient treated for an iatrogenic, surgery-related internal carotid artery pseudoaneurysm who died secondary to consequences of multiple surgeries, no cases of mortality or permanent morbidity were noted. Complete aneurysm occlusion rates were 78.2%, 82.1%, and 95.2% at 0-3, 3-6, and 9-12 months, respectively. None of the patients were re-treated.
CONCLUSION
CONCLUSIONS
EFT is a simple and fast technique which was not associated with adverse effects in our series. The higher aneurysm obliteration rate obtained with EFT is probably the result of better wall apposition of the SFD.
Identifiants
pubmed: 33145216
doi: 10.4103/ajns.AJNS_374_19
pii: AJNS-15-620
pmc: PMC7591168
doi:
Types de publication
Journal Article
Langues
eng
Pagination
620-626Informations de copyright
Copyright: © 2020 Asian Journal of Neurosurgery.
Déclaration de conflit d'intérêts
There are no conflicts of interest.
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