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Updated: Jun 10, 2026
08:08
Simulator Training for Endovascular Neurosurgery
Published on: May 6, 2020
Intravascular neurosurgery for cerebral aneurysm using interlocking detachable coils
1Department of Neurosurgery, University of Tsukuba; Tsukuba, Ibakary, Japan.
Summary
The interlocking detachable coil (IDC) is a viable endovascular treatment for cerebral aneurysms, offering a useful alternative for complex cases. This study shows IDC embolization is possible and effective, even for ruptured aneurysms.
Area of Science:
- Neurosurgery
- Endovascular Therapy
- Cerebrovascular Diseases
Background:
- The Guglielmi detachable coil (GDC) was not available in Japan until February 1997.
- The interlocking detachable coil (IDC) was the sole detachable and retractable coil option during the study period.
Purpose of the Study:
- To evaluate the efficacy and safety of endovascular treatment for cerebral aneurysms using the interlocking detachable coil (IDC).
Main Methods:
- Retrospective analysis of 25 cerebral aneurysm cases treated with IDCs between October 1993 and February 1997.
- Treatments included intraaneurysmal coil embolization and parent artery or proximal occlusion.
Main Results:
- 15 cases underwent intraaneurysmal coil embolization, achieving complete occlusion in 9, subtotal in 4, and partial in 2.
- 9 cases were treated with parent artery or proximal occlusion.
- One case of coil compaction and three instances of distal emboli (one symptomatic) were observed. Intraoperative bleeding occurred in one case.
Conclusions:
- Endovascular treatment using IDCs is a feasible and valuable alternative for cerebral aneurysms, particularly those that are surgically challenging.
- Treatment of poor-grade ruptured aneurysms remains difficult but is possible with IDC therapy.
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