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The Contour—Early Human Experience of a Novel Aneurysm Occlusion Device

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Abstract

Background and Purpose

Endosaccular flow disruption is a recognized treatment options for treating both unruptured and ruptured aneurysms. The Contour device is designed to target the neck of an aneurysm and cause flow disruption within the aneurysm hence promoting thrombosis and neo-endothelialization at the neck. This article presents initial experiences with the Contour.

Methods

The prospectively maintained database was retrospectively reviewed to identify patients treated with the Contour device. Demographic data, aneurysm characteristics, clinical result, and clinical and radiological follow-up information were recorded.

Results

The review identified 3 patients (2 female), with 3 unruptured aneurysms, of average age 67 ± 8.7 years (range 62–77 years). The aneurysms were all located in the anterior circulation including one pericallosal, one at the A1–2 junction and one on the ICA bifurcation. The mean average dome height was 7.6 ± 0.62 mm (range 7.1–8.3 mm), dome width 5.7 ± 2 mm (range 3.5–7.5 mm), and neck width 3.6 ± 0.95 mm (range 2.5–4.2 mm). At follow-up angiography two of the aneurysms were completely occluded and one device had displaced into the aneurysm sac due to inappropriate positioning of the device. Of the patients one had minor stroke during the postoperative period but returned to baseline neurology. All patients were mRS 0 at last follow-up.

Conclusion

The Contour is a promising new aneurysm occlusion device. Further studies with longer term follow-up are required to determine the efficacy of this novel device.

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Abbreviations

AcomA:

Anterior communicating artery

ICA:

Internal carotid artery

MCA:

Middle cerebral artery

mRS:

Modified Rankin score

PCA:

Posterior cerebral artery

PcomA:

Posterior communicating artery

PICA:

Posterior inferior cerebellar artery

RRC:

Raymond Roy classification

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Funding

This research received no specific grant from any funding agency in the public, commercial or not-for-profit sectors

Author information

Authors and Affiliations

  1. Department of Interventional Neuroradiology, The Royal London Hospital, Whitechapel Road, E1 1BB, London, UK

    P. Bhogal

  2. Neuroradiological clinic, Clinica Sagrada Familia, ENERI, Buenos Aires, Argentina

    I. Lylyk, J. Chudyk, N. Perez, C. Bleise & P. Lylyk

Authors
  1. P. Bhogal
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  2. I. Lylyk
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  3. J. Chudyk
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  4. N. Perez
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  5. C. Bleise
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Corresponding author

Correspondence to P. Bhogal.

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Conflict of interest

P. Bhogal serves as a proctor and consultant for phenox GmbH. P. Lylyk serves as a proctor and consultant for phenox GmbH I. Lylyk, J. Chudyk, N. Perez and C. Bleise declare that they have no competing interests.

Ethical standards

For this article no studies with human participants or animals were performed by any of the authors. All studies performed were in accordance with the ethical standards indicated in each case. Additional written informed consent was obtained from all individual participants or their legal representatives for whom identifying information is included in this article.

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Author Contributions

PB, JG, CB—data gathering, manuscript preparation,

IL, NP—review, editing

PL—guarantor

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Bhogal, P., Lylyk, I., Chudyk, J. et al. The Contour—Early Human Experience of a Novel Aneurysm Occlusion Device. Clin Neuroradiol 31, 147–154 (2021). https://doi.org/10.1007/s00062-020-00876-4

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  • DOI: https://doi.org/10.1007/s00062-020-00876-4

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