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Symptomatic chronic subdural hematoma (cSDH) is amongst the most frequent neurological diseases with an upward trend due to an aging society and development in the field of anticoagulation therapies. Lately, subgaleal drainages and middle meningeal artery (MMA) embolization have been introduced to the standard armamentarium as treatment options for cSDH patients. Vascular anomalies, such as internal carotid artery (ICA) occlusion with spontaneous extra-intracranial anastomoses, usually lead to forfeiting embolization treatment from patients.

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Objective: To create a reusable and inexpensive training model with technological tools that simulates cerebral bypass surgery and a sensor system that provides tactile feedback to the surgeon. Furthermore, we aimed to evaluate the anastomotic stability and contribution to the surgeon's learning curve.

Methods: We created a superficial temporal artery-middle cerebral artery bypass simulation model using chicken and turkey brachial arteries.

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The first application of intraoperative mri for analysis of cerebral perfusion in surgical brain revascularization.

Zh Vopr Neirokhir Im N N Burdenko

September 2023

Russian Medical Academy of Continuous Professional Education, Moscow, Russia.

Background: Effectiveness of surgical revascularization in patients with chronic cerebral ischemia depends on restoration of circulation in the damaged artery. Modern methods do not take into account dynamic changes in cerebral perfusion after extra-intracranial microvascular anastomosis (EICMA) and do not allow timely localizing the areas of persistent perfusion deficit. We propose a new method for determining the tactics of surgical cerebral revascularization based on intraoperative MRI (iMRI) perfusion data.

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Background: Moyamoya disease is a chronic cerebrovascular disease with complex pathophysiology. This disease is characterized by unique and unclear features of neoangiogenesis in natural course of disease and after surgical treatment. Natural collateral circulation was discussed in the first part of the article.

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Objective: To study the long-term results of surgical treatment of patients operated on for cerebral aneurysms and their impact on functional recovery, independence and cognitive functions in the long-term period.

Material And Methods: A multivariate regression analysis of long-term results of surgical treatment of 324 patients for cerebral aneurysms was performed (on average after 3.5 years).

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