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Arterial Pouch Microsurgical Bifurcation Aneurysm Model in the Rabbit
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Coil Breakage during Aneurysm Embolization. Case Report.

O K Kwon1, K Jae Lee, M Hee Han

  • 1Neurovascular Center, Inje University, Seoul Paik Hospital; Seoul, Korea.

Interventional Neuroradiology : Journal of Peritherapeutic Neuroradiology, Surgical Procedures and Related Neurosciences
|July 3, 2010
PubMed
Summary
This summary is machine-generated.

Guglielmi detachable coils (GDCs) can fracture if stretched forcefully. This study reports a rare case of GDC fracture occurring without stretching during aneurysm embolization, highlighting a previously unknown failure mechanism.

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Area of Science:

  • Interventional Neuroradiology
  • Medical Device Engineering
  • Vascular Surgery

Background:

  • Guglielmi detachable coils (GDCs) are widely used for endovascular embolization of intracranial aneurysms.
  • Previous research indicates GDCs are susceptible to fracture under excessive stretching during deployment.
  • The mechanical integrity of GDCs under various manipulation forces is crucial for patient safety.

Purpose of the Study:

  • To document and analyze an unusual case of GDC fracture.
  • To investigate the potential for GDC fracture without prior stretching.
  • To inform interventionalists about a novel coil failure mode.

Main Methods:

  • Retrospective analysis of a clinical case involving aneurysm embolization.
  • Detailed review of fluoroscopic and angiographic imaging during the procedure.
  • Examination of the retrieved coil fragment (if available) for evidence of fracture mechanism.

Main Results:

  • A Guglielmi detachable coil fractured during aneurysm embolization.
  • The fracture occurred without any apparent stretching or excessive force applied to the coil.
  • This represents a previously undocumented mode of GDC failure.

Conclusions:

  • Coil fracture can occur in Guglielmi detachable coils even without stretching.
  • This finding suggests alternative mechanisms of mechanical failure in GDCs.
  • Awareness of this phenomenon is important for neurointerventionalists to prevent potential complications.