[Endonasal repair of spontaneous CSF fistulas of the lateral recess of the sphenoid sinus].

CSF fistulas of the lateral recess of the sphenoid sinus are a rare surgical pathology. Cerebrospinal fluid leak from lateral recess of the sphenoid sinus is observed with a frequency of 7.7% among all leakafe of the skull base.

Factors Affecting the Outcomes of Traumatic Atlanto-Occipital Dislocations in Adults: A Systematic Review.

Objective: The objectives of this study were to conduct a systematic review of the literature to determine the optimal treatment method for patients with atlanto-occipital dislocation (AOD) and to identify possible factors influencing their outcomes.

Methods: We conducted a systematic review of the PubMed database between January 1966 and December 2020. The main inclusion criterion was articles that discussed AOD treatment methods, and outcome descriptions were selected for analysis.

[Intracerebral hemorrhage grading scales for the prediction of stroke outcome].

The authors consider the prognostic models and grading scales for the patients with primary intracerebral hemorrhage and discuss the influence of some factors, like a patient age, intracerebral hematoma location and volume, intraventricular hemorrhage and development of obstructive hydrocephalus. The grading scales are described in terms of its' administering to patients before conservative treatment and surgery. A comparative analysis of the scales regarding the convenience and relevance of their use in clinical practice is carried out.

The impact of odontoid screw fixation techniques on screw-related complications and fusion rates: a systematic review and meta-analysis.

Purpose: The primary goal of this study was to conduct a systematic review and meta-analysis of articles focused on odontoid screw fixation (OSF) and screw-related complications or non-union rates.

Methods: We conducted a systematic review of the PubMed and Crossref databases between January 1982 and December 2019. Inclusion criteria comprised detailed descriptions of the surgical technique and screw-related complications (screw cut-out, loosening, breakage, malposition) or fusion rates.

Transcervical approach with endoscopic assistance for surgical treatment of patient with irreducible atlantoaxial dislocation: a case report.

We demonstrate the case of a surgery in a patient with irreducible atlantoaxial dislocation (IrAAD) after C2 fracture. The challenges of this case were the flexed head in a forced position, impossibility of neck extension, and revision operation after posterior occipito-cervical fixation. The patient underwent the following surgeries: 1.

[Malignant cerebellar infarction: clinical course and surgical treatment].

Aim: To clarify the indications for surgical treatment of malignant cerebellar infarction (CI).

Material And Methods: Eighty patients with CI were studied. The malignancy of CI was understood as the development of mass effect in the posterior cranial fossa, accompanied by the decrease in consciousness due to compression of the brain stem and/or the development of occlusive hydrocephalus.

Posterior percutaneous transarticular stand-alone screw instrumentation of C1-C2 with endoscopic assistance: A report of two cases.

We present two cases of minimally invasive posterior transarticular screw fixation of C1-C2. The points for screw insertion were visualized by endoscopy via the instrumental port. A patient with a type III odontoid fracture with subluxation underwent a minimally invasive posterior stand-alone transarticular screw fixation.

Endoscopic Endonasal Resection of the Odontoid Process in a Patient with Chronic Injury of the C1 Transverse Ligament.

Atlas dislocation after transverse ligament injury is one of the most rare types of trauma to the upper cervical level. If magnetic resonance imaging of the craniovertebral junction reveals the Kassam line passing through the cervix of the odontoid process, a transnasal approach can be used for surgical treatment. Here, we present a case in which an endoscopic endonasal approach was used to treat chronic traumatic transligamentous atlas dislocation.

[Modeling of hemodynamic changes in the aneurysm of the middle cerebral artery depending on the pathology of the parent artery].

Objective: To examine the influence of the parent artery pathology on the local hemodynamics on the level of aneurysm.

Material And Methods: Mathematical models of the arteriovenous malformation (AVM) were built on the CT-angiography data of real patients. To simulate the thrombosis, the parent artery and its branches were sequentially turned off in the model 1.

[Endoscopic surgery of hemorrhagic stroke].

Objectives. Demonstration and analysis of possibilities of video-endoscopy in the surgical treatment of hypertensive hemorrhages Materials and methods. We analyzed the results of surgical treatment of 35 patients with hypertensive intracranial hematomas which were removed using endoscopic method.