Blindness After Frontal Craniotomy.

In our practice at our department, we have encountered two clinical cases involving the complete loss of vision and ophthalmoplegia after craniotomy on the vascular pathology of the brain. Both patients underwent microsurgery via bifrontal skin incision. In the first case, the subfrontal craniotomy on the right side was made, and then microsurgical resection of an arteriovenous malformation of the right frontal lobe was performed.

[Russian study on brain aneurysm surgery: a continuation (RIHA II)].

Objective: To assess the main performance indicators of neurosurgical departments in surgical treatment of cerebral aneurysms in the Russian Federation.

Material And Methods: We analyzed 22 neurosurgical departments (19 regional and 3 federal hospitals) in 2017 and 2021. The study enrolled 6.

The Effect of Adding Modified Chitosan on the Strength Properties of Bacterial Cellulose for Clinical Applications.

Currently, several materials for the closure of the dura mater (DM) defects are known. However, the long-term results of their usage reveal a number of disadvantages. The use of antibiotics and chitosan is one of the major trends in solving the problems associated with infectious after-operational complications.

The Relationship between the Strength Characteristics of Cerebral Aneurysm Walls with Their Status and Laser-Induced Fluorescence Data.

Background: Cerebral aneurysms (CA) are a widespread vascular disease affecting 50 per 1000 population. The study of the influence of histological, morphological and hemodynamic factors on the status of the aneurysm has been the subject of many works. However, an accurate and generally accepted relationship has not yet been identified.

[Regarding the manuscript by A.A. Shulgina et al. Combined double-barrel direct and indirect bilateral cerebral revascularization in the treatment of moyamoya disease].

In the paper published in issue 2 (2020) of the Burdenko's Journal of Neurosurgery, the authors justifiably propose a technique of bilateral extraintracranial vascular microanastomosis (EICMA) in case of rapidly developing stenotic lesions of the intracranial arteries in order to compensate the marked hypoperfusion in the basins of the anterior cerebral artery and middle cerebral artery on both sides. This allows to significantly reduce the risks of possible ischemic stroke in the earliest period.

[Direct spontaneous high-flow carotid-cavernous fistula in a 9-month-old child after nasolacrimal duct repair].

Successful treatment of direct spontaneous carotid-cavernous fistula in a 9-month-old child and review of the literature devoted to this issue are reported in the manuscript. Spontaneous high-flow carotid-cavernous fistula is extremely rare in children. Detailed diagnosis of the fistulae includes CT-angiography and cerebral subtraction angiography.

Is Lactic Acidosis After Lung Transplantation Associated With Worse Outcomes?

Background: Elevated lactate levels may be caused by increased production suggestive of tissue ischemia; however, they may also occur without evidence of ischemia, by catecholamine activation of beta receptors. The purpose of this study was to determine the factors associated with increased lactate levels during and after lung transplantation and to evaluate whether lactate levels were associated with increased time to extubation and postoperative complications.

Methods: This was a retrospective study of patients who underwent lung transplantation between January 2015 and May 2017 at the University of Michigan, Ann Arbor, MI.

On the optimal choice of a hyperelastic model of ruptured and unruptured cerebral aneurysm.

In the last decade, preoperative modelling of the treatment of cerebral aneurysms is being actively developed. Fluid-structure interaction problem is a key point of a such modelling. Hence arises the question about the reasonable choice of the model of the vessel and aneurysm wall material to build the adequate model from the physical point of view.

[Surgical treatment of cerebral aneurysms in the Russian Federation].

Objective: The objective of this study was to evaluate the results of surgical treatment of cerebral aneurysms in the Russian Federation.

Material And Methods: We analyzed performance indicators in neurosurgical departments of regional and federal health institutions of the Russian Federation for 2017. The results of surgical treatment of cerebral aneurysms (CAs) were analyzed in 19 regional vascular centers (RVCs) in several federal districts and in 3 federal centers (FCs) with the most dynamically developing vascular neurosurgery and smoothly running system of statistical data processing.

Flow diversion versus parent artery occlusion with bypass in the treatment of complex intracranial aneurysms: Immediate and short-term outcomes of the randomized trial.

Objective: We performed prospective randomized comparison of clinical and surgical outcomes of flow diversion versus PVO and bypass in patients with complex anterior circulation aneurysms.

Patients And Methods: Open, prospective, randomized, parallel group, multicenter study of complex intracranial aneurysms treatment was conducted. Patients with complex intracranial aneurysms of anterior circulation with neck is more than 4 mm wide, dome/neck ratio is equal or less than 2:1, which is suitable for flow diversion and occlusion with bypass were included in the study.

Supratentorial dural-based collision of cavernoma and meningioma: a case report.

Background: Collision tumor is a very rare case of cerebral lesion. Approximately 50 reports of intracranial collision tumors were described in the literature. We present a case of supratentorial dural-based convexity collision tumor radiologically mimicking cavernous malformation and composed of cavernous malformation and meningioma.

Angiopoietin-Like Proteins 4 (ANGPTL4) Gene Polymorphisms and Risk of Brain Arteriovenous Malformation.

Background: Brain arteriovenous malformations (BAVMs) are formed by hypertrophied arterial vessels (afferents, feeders), a large number of arteriovenous shunts which become tangled to form a body (nidus) of malformation, which then expands draining proximal veins. The aim of this study was a replication of single nucleotide polymorphism (SNP) rs11672433 association with BAVM development with the subsequent meta-analysis of published data.

Methods: A total of 252 Russian patients with brain BAVMs and 480 control subjects were included in the present study.

[Use of a mini-approach for performing EC-IC bypass in occlusive lesions of the brachiocephalic arteries].

Purpose: to evaluate the advantages and disadvantages of a mini-approach for performing EC-IC bypass.

Material And Methods: The mini-approach was used in 35 patients (32 males and 3 females) with symptomatic occlusive lesions of the brachiocephalic arteries (BCAs) who were treated at the Department of Vascular Neurosurgery of the Federal Center of Neurosurgery in Novosibirsk in the period between January and December 2014. The mini-approach was performed through a skin incision of up to 5.

[Combination treatment of cerebral arteriovenous malformations using endovascular and microsurgical techniques].

Material And Methods: The study included 40 patients with cerebral AVMs. In the study group, 14 (35%) patients underwent microsurgical resection without preliminary embolization (1st group), and 26 (65%) patients underwent combined treatment (endovascular embolization and microsurgical intervention, 2nd group). The first group included patients with S&M grade I-III AVMs, and the second group included patients with S&M grade II-V AVMs.

[The use of high-flow extracranial-intracranial artery bypass in pathology of the cerebral and brachiocephalic arteries: technical features and surgical outcomes].

Background: Poor outcomes of surgical treatment for complex cerebral aneurysms due to the development of cerebral ischemia were the cause to use cerebral revascularization surgery for this pathology.

Objective: the study objective was to master a high-flow extracranial-intracranial (EC-IC) artery bypass technique and evaluate its application in surgical treatment of complex and giant cerebral aneurysms as well as complex lesions of the brachiocephalic arteries.

Material And Methods: Fifty two patients underwent high-flow IC-EC bypass surgery; of these, 34 patients had complex cerebral aneurysms, and 18 patients had complex stenotic occlusive lesions of the brachiocephalic arteries.

Forbidden word entropy of cerebral oximetric values predicts postoperative neurocognitive decline in patients undergoing aortic arch surgery under deep hypothermic circulatory arrest.

Purpose: Up to 53% of cardiac surgery patients experience postoperative neurocognitive decline. Cerebral oximetry is designed to detect changes in cerebral tissue saturation and therefore may be useful to predict which patients are at risk of developing neurocognitive decline.

Methods: This is a retrospective analysis of a prospective study originally designed to determine if treatment of cerebral oximetry desaturation is associated with improvement in postoperative cognitive dysfunction in patients undergoing aortic reconstruction under deep hypothermic circulatory arrest.

[Surgical treatment of distal extracranial internal carotid artery aneurysms associated with pathological artery kinking].

Extracranial internal carotid artery (ICA) aneurysms located at the entrance of the skull are a rare pathology. Surgical treatment is indicated for this pathology because of the risk of arterio-arterial embolism and the development of cerebrovascular disease. The domestic and international literature reports single cases or small group cases of successful surgical treatment of patients with distal internal carotid artery aneurysms associated with pathological kinking of the artery.

[Surgical treatment of «Mirror» aneurysms of the internal carotid artery].

Background: A relatively high occurrence of "mirror" aneurysms of the anterior cerebral circulation in neurosurgical practice necessitates generalization of experience of using different surgical approaches. The choice of treatment is usually associated with the number of surgical stages.

Material And Methods: Forty nine patients (19 males and 30 females) with mirror aneurysms of the anterior circulation underwent one- and two-step surgery at the Novosibirsk Federal Center of Neurosurgery in 2013-2015.

A retrospective analysis of the effect of blood transfusion on cerebral oximetry entropy and acute kidney injury.

Purpose: Acute anemia is associated with both cerebral dysfunction and acute kidney injury and is often treated with red blood cell transfusion. We sought to determine if blood transfusion changed the cerebral oximetry entropy, a measure of the complexity or irregularity of the oximetry values, and if this change was associated with subsequent acute kidney injury.

Methods: This was a retrospective, case-control study of patients undergoing cardiac surgery with cardiopulmonary bypass at a tertiary care hospital, comparing those who received a red blood cell transfusion to those who did not.

Perceptions of Acupuncture and Acupressure by Anesthesia Providers: A Quantitative Descriptive Study.

Randomized controlled trials show that acupuncture and acupressure support anesthesia management by decreasing anxiety, opioid requirements, and treating post-operative nausea and vomiting. Acupuncture and acupressure have demonstrated clinical usefulness but have not yet diffused into mainstream anesthesia practice. To determine why, this study assessed U.

Postoperative metabolic acidosis following the minimally invasive radiofrequency maze procedure.

Purpose: Atrial fibrillation (AF) is the most common arrhythmia treated in the world. While medical treatment with antiarrhythmic drugs remains the primary treatment modality, symptomatic refractory AF often requires treatment with a catheter or surgical ablation. One minimally invasive therapy is the Mini-Maze procedure, which utilizes epicardial radiofrequency ablation via a subxiphoid approach to rid the heart of arrhythmogenic atrial foci without a median sternotomy or cardiopulmonary bypass.

[Improvement of visual functions after successful microsurgical exclusion of a giant aneurysm of the right internal carotid artery using revascularization techniques].

We describe a clinical case of successful treatment of a female patient with a giant paraclinoid aneurysm of the right ICA. The aneurysm had a pseudotumoral course and manifested as pronounced progressive visual impairments. The patient underwent microsurgery including trapping/clipping of the right ICA aneurysm after creation of an EICMA and a high-flow anastomosis between the ECA and the M2 segment of the MCA.

Perioperative management of bridge-to-lung transplant using ECMO.

Respiratory failure requiring intubation has traditionally been a relative contraindication to lung transplantation due to increased morbidity and mortality. Advances in extracorporeal membranous oxygenation (ECMO) have made it possible to extubate patients and provide physical therapy with minimal native lung function. By "bridging" patients to lung transplant using ECMO, they are able to undergo rehabilitation and withstand the demands of surgery.