ABSTRACT
Endovascular therapy for the treatment of intracranial lesions represents a challenge to the interventionist for several reasons, not the least of which is the fact that the organ involved, the brain, is fundamental to life and the way we live it. Any complication resulting in a cerebrovascular accident, whether hemorrhagic or ischemic, can be devastating, and every effort should be made to prevent its occurrence. Adverse sequelae or consequences of endovascular therapy can occur immediately as with intracranial vessel and/or aneurysm perforation or vessel thrombosis, or in a delayed fashion as with recurrent vessel stenosis or aneurysm regrowth. It is crucial for the neurointerventionist to understand these complications and take the necessary steps to prevent them. Equally important is the ability to recognize the occurrence of these adverse events and then manage them appropriately. The avoidance and management of hemorrhagic and ischemic cerebral infarctions as complications of endovascular therapy for intracranial aneurysms and stenotic lesions will be the focus of this chapter.
