FDAnews
www.fdanews.com/articles/105197-smokers-treated-with-coils-at-higher-risk-of-recurrence

Smokers Treated With Coils at Higher Risk of Recurrence

March 24, 2008
Cigarette smokers who were treated for cerebral aneurysms with coil embolization (blocking of a blood vessel) are at greater risk of developing another aneurysm, say neurological surgeons at Jefferson Hospital for Neuroscience in Philadelphia in the first-known study of its kind.
ScienceDaily