[Combined cerebral revascularization for moyamoya disease].

Introduction: Combined cerebral revascularization with direct and indirect components is recognized as the most appropriate method for treating patients with Moyamoya disease all over the world, however, large studies on its effectiveness in Russia have not yet been conducted.

The Aim Of The Study: Was to evaluate the results of combined cerebral revascularization in patients with Moyamoya disease with an analysis of the clinical state and perfusion and angiographic features of neoangiogenesis.

Material And Methods: For the period from 2013 to 2020 in N.N. Burdenko National Medical Research Center of Neurosurgery 79 combined revascularizations were performed in 55 patients with Moyamoya disease. The average age was 13.9±10.11 years. All patients were examined according to a single protocol, including a comprehensive assessment of the clinical symptoms, the state of the brain tissue, the cerebral vascular system, and cerebral blood flow. The results of surgical treatment were evaluated in the early postoperative and long-term periods. The average follow-up period was 14.66±13.17 months. In the postoperative period, the dynamics of neurological status and cerebral blood flow were assessed and the features of neoangiogenesis from various components of revascularization were studied.

Results: In the early postoperative period, in 77.2% of cases, a good treatment result was observed, with no negative dynamics of the neurological status. Ischemic stroke in the operated hemisphere developed in 4 cases (5.1%). In the follow-up period, an improvement in neurological symptoms was observed in 76.6%. Improvement of cerebral blood flow was noted in 92.4% of cases, direct anastomoses functioned in 94.3%, and signs of neovascularization in the area of indirect synangiosis were observed in 80.0%. At the same time, a complementary influence of direct and indirect components of revascularization was revealed in ensuring good general angiographic and perfusion results.

Conclusions: Combined revascularization is a highly effective method of surgical treatment of all patients with Moyamoya disease.