Controversies in Treatment Methodologies in Cerebrovascular Surgery.

Cerebrovascular surgery has shifted a lot from the microsurgical aspects to the endovascular surgeries in nearly most of the cases. However, there are still some major controversies when one sees the long-term follow-up of microsurgical and endovascular procedures.MC aneurysms, PICA VA junction and PICA aneurysms, IC aneurysms with good cross flow (trapping), revascularisation surgery, dural AVF (coagulation or coiling), ICH evacuation timing, and recent changes in mechanical thrombectomy timing are a few of these examples. This chapter will comprehensively aim to provide an outlook on the best possible modality in these controversial aspects of cerebrovascular surgery.