Evidence map›Paper›PMID 30803335›Full record

ArticleInterventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences2019

Precision microcatheter shaping in vertebrobasilar aneurysm coiling.

Katsunari Namba, Ayuho Higaki, Naoki Kaneko, Shigeru Nemoto, Kensuke Kawai

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PubMed Full text at PMC Publisher
In one paragraph

Article in Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.8field-weighted citation impact, top 28% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 10 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Katsunari Namba1 Center for Endovascular Therapy, Division of Neuroendovascular Surgery, Jichi Medical University, Shimotsuke, Japan.ORCID https://orcid.org/0000-0003-4182-9133
Ayuho Higaki1 Center for Endovascular Therapy, Division of Neuroendovascular Surgery, Jichi Medical University, Shimotsuke, Japan.
Naoki Kaneko2 Department of Neurosurgery, Jichi Medical University, Shimotsuke, Japan.
Shigeru Nemoto3 Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan.
Kensuke Kawai2 Department of Neurosurgery, Jichi Medical University, Shimotsuke, Japan.
Jichi Medical University · JPTokyo Medical and Dental University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundInventing an optimal curve on a microcatheter is required for successful intracranial aneurysm coiling. Shaping microcatheters for vertebrobasilar artery aneurysm coiling is difficult because of the vessel's long, tortuous and mobile anatomy. To overcome this problem, we devised a new method of shaping the microcatheter by using the patient's specific vessel anatomy and the highly shapable microcatheter. We report our preliminary results of treating posterior circulation aneurysms by this method.

methodsAn unshaped microcatheter (Excelsior XT-17; Stryker Neurovascular, Fremont, CA, USA) was pretreated by exposure to the patient's vessel for five minutes. The microcatheter was placed in the vicinity of the targeted aneurysm and was left in contact with the patient's vessel before extraction. This treatment precisely formed a curve on the microcatheter shaft identical to the patient's vessel anatomy. Following the pretreatment, the tip of the microcatheter was steam shaped according to the long axis of the target aneurysm. Five consecutive vertebrobasilar aneurysms were treated using this shaping method and evaluated for the clinical and anatomical outcomes and microcatheter accuracy and stability.

resultsAll of the designed microcatheters matched the vessel and aneurysm anatomy except in one case that required a single modification. All aneurysms were successfully catheterized without the assistance of a microguidewire, and matched the long axis of the aneurysm. All microcatheters retained stability until the end of the procedure.

conclusionsA precise microcatheter shaping for a vertebrobasilar artery aneurysm may be achieved by using the patient's actual vessel anatomy and the highly shapable microcatheter.

Indexed as

CathetersVertebral ArteryAgedAged, 80 and overEmbolization, TherapeuticEquipment DesignFemaleHumansIntracranial AneurysmMaleMiddle Agedcoilingintracranial aneurysmMicrocatheter shaping

Identifiers

PMID30803335
PMCPMC6607607
OpenAlexW2916853930

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.