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Measuring and Manipulating Functionally Specific Neural Pathways in the Human Motor System with Transcranial Magnetic Stimulation

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MicroNester coil for neurointervention.

Kentaro Hayashi¹, Naoki Kitagawa, Minoru Morikawa

¹Department of Neurosurgery, Nagasaki University School of Medicine, Nagasaki, Japan. kenkuni@net.nagasaki-u.ac.jp

Journal of Neurosurgery

|September 30, 2008

Summary

The MicroNester coil (MNC) is a safe and effective new device for cerebrovascular embolization. This neurovascular tool requires fewer coils for procedures, improving efficiency in treating brain conditions.

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Area of Science:

Neurosurgery
Interventional Radiology
Vascular Medicine

Background:

The Nester coil is a standard embolic agent.
A modified version, the MicroNester coil (MNC), was developed with an extended length of 14 cm for use with a 0.018-in microcatheter.

Observation:

The MNC was utilized in 11 patients for various neurointerventional procedures.
These included transvenous and transarterial embolization for dural arteriovenous fistulas, parent artery occlusion for cerebral aneurysms, and stent-assisted embolization for carotid artery dissection.

Findings:

Successful deployment of MNCs was achieved in target lesions, including venous sinuses, feeding arteries, aneurysm parent arteries, and pseudoaneurysms.
No major technical complications leading to morbidity were reported.
Recanalization occurred in 2 cases post-procedure.

Implications:

The MicroNester coil demonstrates safety and feasibility for embolizing cerebrovascular lesions.
Its use may reduce the number of coils needed for embolization procedures.
This innovation offers a promising advancement in neurointerventional therapy.