====== Coil ======
Coil variations include bare platinum, polymer coated (Matrix), and [[hydrogel coated coil]] (HydroCoil) coils.

In [[aneurysm]]s Matrix coils were most likely to need retreatment. Retreatment rates were comparable for bare platinum and HydroCoils. Follow-up angiography demonstrated statistically significant attenuation of residual aneurysms for HydroCoils. Matrix group had the greatest and HydroCoils the least tendency to recanalize. Factors other than coil surface-coating may attenuate aneurysm recurrence
((Khan SH, Nichols C, Depowell JJ, Abruzzo TA, Ringer AJ. Comparison of coil
types in aneurysm recurrence. Clin Neurol Neurosurg. 2012 Jan;114(1):12-6. doi:
10.1016/j.clineuro.2011.07.017. Epub 2011 Aug 20. PubMed PMID: 21862207.)).

===== History =====

see [[Coil history]]


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See [[Coiling]].

See [[Coil migration]].

See [[Coil price]]

See [[Stent assisted coiling]]