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Updated: Aug 6, 2026
18:50
Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment
Published on: September 25, 2009
Intrasaccular Flow Disruption with the Contour Device: A Single-Center Experience in Ruptured Intracranial Aneurysms
Deepak K Singh1, Praveenkumar N Sangolli, Prevesh Sharma
1Department of Neurosurgery, Dr Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
Neurology India
|July 21, 2026
Summary
The Contour device offers a safe and effective endovascular treatment for ruptured wide-necked intracranial aneurysms. This intrasaccular flow disruption method shows promising results in acute settings.
Area of Science:
- Neurosurgery
- Endovascular techniques
- Cerebrovascular diseases
Background:
- Wide-necked intracranial aneurysms present significant clinical management challenges.
- Intrasaccular devices, including Contour and WEB, offer promising solutions.
- The Contour Neurovascular System utilizes flow-disruption and diversion principles.
Purpose of the Study:
- To evaluate the Contour device as a primary intervention for ruptured intracranial aneurysms.
- To assess the safety, efficacy, and patient outcomes of Contour device treatment.
- To investigate its role in the acute management of aneurysmal rupture.
Main Methods:
- Retrospective study at Dr. Ram Manohar Lohia Institute of Medical Sciences, India.
- Single surgeon experience with the Contour device in 15 ruptured aneurysm cases.
- Modified Rankin Scale (MRS) for functional assessment and MR angiography (MRA) with Raymond-Roy Classification (RROC) for occlusion assessment.
Main Results:
- Successful deployment of the Contour device in all 15 cases.
- At 6-month follow-up, 11 patients achieved RROC Class I occlusion (complete occlusion).
- 2 patients had neck remnants (RROC Class II) and 1 had partial reperfusion (RROC Class IIIa).
Conclusions:
- Intrasaccular flow disruption with the Contour device is a novel endovascular approach.
- The Contour device demonstrates a favorable safety profile for wide-necked intracranial aneurysms.
- It is a stable and effective treatment option, even in acute rupture scenarios.
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