approximately 40% to 50% of large and giant cerebral
aneurysms contain an intraluminal thrombus.
The risk of rupture of partially thrombosed
aneurysms is comparable to the risk of rupture of
nonthrombosed aneurysms; additionally, the probability
of ischemic stroke due to distal thromboembolism is
high. In this regard, patients harboring aneurysms with
an intraluminal thrombus are candidates for surgical treatment.
The Burdenko Neurosurgical Institute has extensive
experience in the treatment of large and giant partially
thrombosed aneurysms of the middle cerebral artery
(MCA). At this institute, the vast majority of these aneurysms
have been treated using microsurgical techniques.
Thrombosis of the branches of the MCA is one of the most
serious complications of microsurgery and can cause severe neurological deficits.
The object of this study was to assess the frequency
of intraoperative arterial thrombosis (IAT) during microsurgical
treatment of large and giant partially thrombosed aneurysms of the MCA and the efficacy of treatment of the complication.