Neurointervention.  2025 Mar;20(1):24-27. 10.5469/neuroint.2024.00493.

Delayed Aneurysm Rupture Following Endovascular Treatment with Contour Device: A Case Report

• Koc O
• Mahmoud M
• Mahmoud E
• Ayyad A
• Own A

• KMID: 2565075
• DOI: http://doi.org/10.5469/neuroint.2024.00493

Abstract

Delayed rupture of intracranial aneurysms after endovascular treatment is a rare but serious complication. We report the first documented case of late aneurysmal rupture following treatment with a Contour intrasaccular device. A patient in their 60s with a basilar tip aneurysm underwent endovascular treatment using a 14-mm Contour device. Fifteen months later, the patient presented with a fatal intraventricular hemorrhage, and imaging revealed device displacement and aneurysm growth. This case underscores the importance of meticulous device sizing and follow-up, especially for large aneurysms.

Keyword

Aneurysm; Basilar artery; Ruptured

Figure

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  Fig. 1. (A, B) Digital subtraction angiography (DSA) and 3D rotational angiography images show wide neck basilar tip aneurysm. (C) Non subtracted images show that Contour device (Cerus) has stabilized prior to release. (D, E) After releasing Contour device, non-subtracted images showing mild contrast stasis in the aneurysm. (F) Vaso computed tomography (CT) revealed that the device was in good position of the aneurysm neck. (G, H) Fifteen months later, Vaso CT reveals a ruptured aneurysm larger than previously observed with an irregular form. In addition, the Contour device displaced to the aneurysm dome and changed to reversed umbrella shape. (I) 3D rotational angiography indicated that the aneurysm had enlarged and developed into an irregular shape. (J) DSA images show that the aneurysm is treated with Y-stent coiling technique.

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