[The effect of surgical technique on the long-term results of treatment of brain aneurysms].

Objective: To study the long-term outcomes of surgical treatment of cerebral aneurysms (CA) after using different methods of excluding the aneurysm from the bloodstream.

Material And Methods: We analyzed the long-term results of surgical treatment of 311 patients for CA (on average after 3.5 years).

Blood Flow Capacity Assessment of End-to-Side Arterial Anastomosis In Vivo in Rats.

 The aim of this article was to assess the flow capacity of end-to-side arterial anastomosis depending on the method of its implementation.  The study was conducted on 30 live Wistar rats in vivo, which were randomly divided into three groups. In each group of animals, an end-to-side microanastamosis was performed using three methods of donor artery preparation: 45 degrees (group A), 90 degrees (group B), and arteriotomy according to the "fish mouth" type (group C).

[Cerebral persistent primitive arteries. Clinical case of combination with intracranial aneurysm and review of the literature].

Cerebral persistent primitive arteries are uncommon and associated with cerebrovascular diseases, like cerebral aneurysms. They can cause vertebrobasilar ischemia and neuropathy of the cranial nerves. The authors present a patient with trigeminal artery associated with giant partially thrombosed cavernous internal cerebral artery aneurysm.

Extra-intracranial bypass surgery using the orifice of maxillary artery in a patient with middle cerebral artery aneurysm. Case report and literature review.

Objective: To present the technique of extra-intracranial bypass surgery using the orifice of maxillary artery bypass, to evaluate the advantages and disadvantages of this and alternative revascularization options.

Material And Methods: Radial artery graft harvesting was performed at the 1st stage. Simultaneously, the second team of surgeons performed a combined (submandibular and anterior) access to the donor artery (mandibular segment of maxillary artery behind the ramus of the mandible).

[The frequency of vertebral artery sulcus ossification, grades III and IV, in patients with Kimmerle's anomaly: A systematic review and meta-analysis].

Objective: To conduct a systematic review and meta-analysis to determine the frequency of Kimmerle's anomaly (KA) in patients with grades III and IV vertebral artery (VA) sulcus ossification.

Material And Methods: We searched the PubMed and eLIBRARY.RU databases, identified 68 articles in English, and obtained data of 29.

[Anatomical bases of brain revascularization: choosing an extra-intracranial bypass option].

Surgical brain revascularization is an important treatment for acute or chronic ischemia, intracranial aneurysms and skull base tumors. Individual anatomy of brain vessels should be clearly understood for this procedure. Variants of collateral cerebral blood flow in patients with cerebrovascular diseases depend on individual characteristics of circle of Willis and reserve mechanisms of collateral circulation.

[The modification of predictors of course of acute period of craniocerebral trauma under implementation of stream model of medical care support].

The specificity of course of acute period of craniocerebral injury and organization of medical care support are the factors determining outcomes for this category of patients. The purpose of the study is to investigate changes in predictors of course of acute period course of craniocerebral injury under implementation of stream model of medical care organization. The sampling included 150 patients with moderate and severe craniocerebral injury based on data obtained in 2013 and 2019, respectively.

[Navigation in vascular neurosurgery].

Literature review is devoted to the role of frameless neuronavigation in surgery of distal aneurysms, cavernomas, arteriovenous malformations, Kimmerle's anomaly and revascularization surgeries. Visualization methods used in preoperative preparation of patients with vascular lesions compatible with frameless neuronavigation and the methods of intraoperative visualization as an addition to navigation are described.

[Resection of a giant fusiform aneurysm of the pericallosal artery with «hemi-bonnet bypass» procedure (case report and literature review)].

A 30-year-old woman with giant fusiform aneurysm of the azygos anterior cerebral artery is reported. Clipping of the aneurysm followed by modeling of pericallosal artery was performed in 2017. However, further enlargement of the aneurysm has been observed for subsequent 2 years.

Endoscopy-assisted surgical treatment of carotid artery kinking.

Objective: To evaluate the results of endoscopy-assisted surgical treatment of patients with 'high' tortuosity of the ICA.

Material And Methods: Endoscopy-assisted surgical reconstruction of high tortuosity of the ICA was made in 11 patients. All procedures were carried out at the Sklifosofsky Research Institute for Emergency Medicine (Moscow) and Republican clinical hospital of Kabardino-Balkaria (Nalchik) for the period from 01.

[Use of the 'bonnet' bypass in treating a patient with symptomatic occlusion of the ipsilateral carotid arteries. Clinical observation].

In this article we present the clinical case of 63 y.o. man with chronic occlusion of the right common, internal, and external carotid arteries, and critical stenosis of the left internal carotid artery, with complaints of muscle weakness and decreased sensitivity of the left limbs.

[Diabetes mellitus in surgical clinic].

Aim: To demonstrate that the diagnosis and treatment of diabetes mellitus (DM) are actual today for surgical clinic because morbidity reached pandemic levels.

Material And Methods: We defined causality and comorbid relations of DM with some common pancreatic diseases that is especially important for abdominal surgical clinic. Pathogenesis, clinical and laboratory signs of diabetes were determined in patients with surgical pancreatic pathology.

[Surgical prevention of ischaemic strokes by means of an extraintracranial microanastomosis (EICMA) in the carotid basin].

Background: Not less than 50% of all ischaemic strokes appear to occur resulting from pathology of extracranial arteries. Occlusions and stenoses are more commonly encountered in carotid arteries, with the incidence of occlusion of the internal carotid artery (ICA) ranging from 5 to 10% within the structure of all lesions of brachiocephalic arteries (BCA).

Aim: The study was aimed at assessing the results of a surgical procedure of extra-intracranial microanastomosis (EICMA) performed in patients presenting with occlusive and stenotic lesions of BCA at the Neurosurgical Department.

[ASSESSMENT OF CEREBRAL PERFUSION IN PATIENTS WITH HEMODYNAMIC ISCHEMIC STROKE UNDERGOING RECONSTRUCTIVE BRACHIOCEPHALIC ARTERY INTERVENTIONS].

The paper deals with the assessment of cerebral perfusion in patients in the acute period of acute cerebrovascular accident before and after revascularization surgery. It gives a clinical example of using contrast-free perfusion magnetic resonance imaging (MRI) in a patient with hemodynamic ischemic stroke. The use of this technique made it possible to determine indications for early carotid endarterectomy for the contralateral internal carotid artery and to evaluate positive postoperative changes in cerebral perfusion and the patient’s neurological status.

[Operations of revascularization in surgery of cerebrovascular aneurysms].

Surgical revascularization of the brain is one of the most important trends in the development of neurosurgery. Restoration of adequate blood flow through pre- and intracerebral arteries promotes prevention and treatment of ischaemic lesions of the brain in various pathology. The present work was aimed at analysing the experience gained in performing revascularizing operations in patients with cerebral aneurysms at the department of neurosurgery.

[The use of extra-intracranial microanastomosis in the treatment of cerebral ischemia in patients with nontraumatic subarachnoid hemorrhage].

Objective: to evaluate the use of extra-intracranial microanastomosis (EICMA) in the treatment of brain ischemia in patients with nontraumatic subarachnoid hemorrhage (SAH).

Material And Methods: In the period from 01.01.

The use of combined revascularization surgery for successful elimination of a middle cerebral artery aneurysm.

Objective: The study objective is to present a clinical case of successful surgical treatment of a complex middle cerebral artery (MCA) aneurysm using various types of bypasses.

Material And Methods: A 59-year-old female patient presented with nontraumatic intracranial hemorrhage caused by rupture of a complex right MCA aneurysm. The anatomical features of the MCA aneurysm were identified using computed tomography (CT) in angiographic and 3D modes.