Surgical management of spinal schwannomas arising from the first and second cervical roots: Results of a cumulative case series.

Objective: Schwannomas of the first and second nerve roots are rare neurosurgical entities, harboring specific surgical features that make surgical resection particularly challenging and deserve specifics dissertations. This study is a retrospectively analysis of 14 patients operated in two different neurosurgical centers: the San Filippo Neri Hospital of Rome and the Federal Centre of Neurosurgery of Tjumen.

Materials And Methods: In the last 6 years, 14 patients underwent neurosurgical resection of high cervical (C1-C2) schwannomas, in two different neurosurgical centers.

Microsurgery of Koos I-II vestibular schwannomas: a case series of 100 consecutive patients.

Background: Treatment of small vestibular schwannomas (VS) depends on size, growth pattern, age, symptoms, co-morbidities. Watchful waiting, stereotactic radiosurgery and microsurgery are three valid options of treatment.

Methods: We reviewed clinical sheets, surgical data and results of 100 consecutive patients with Koos Grade I-II VS, operated at our department via a retrosigmoid microsurgical approach between September 2010 and July 2021.

Safeness and efficacy of 2-µm handheld thulium laser during microsurgical resection of supratentorial and infratentorial meningiomas: Experience of a single center.

Aims: We performed a retrospective nonrandomized study to analyze the results of a microsurgery of intracranial meningiomas using 2-μm thulium flexible handheld laser fiber (Revolix jr).

Methods: From February 2014 to December 2021, 75 nonconsecutive patients suffering from intracranial meningiomas, admitted in our department, have been operated on with microsurgical technique assisted by 2-μm thulium flexible handheld laser. We have reviewed demographic and clinical data to evaluate safety and efficacy of the technique.

Insulin Diminishes Superoxide Increase in Cytosol and Mitochondria of Cultured Cortical Neurons Treated with Toxic Glutamate.

Glutamate excitotoxicity is involved in the pathogenesis of many disorders, including stroke, traumatic brain injury, and Alzheimer's disease, for which central insulin resistance is a comorbid condition. Neurotoxicity of glutamate (Glu) is primarily associated with hyperactivation of the ionotropic N-methyl-D-aspartate receptors (NMDARs), causing a sustained increase in intracellular free calcium concentration ([Ca]) and synchronous mitochondrial depolarization and an increase in intracellular superoxide anion radical (O) production. Recently, we found that insulin protects neurons against excitotoxicity by decreasing the delayed calcium deregulation (DCD).

Preoperative vestibular evoked myogenic potentials (VEMPs), caloric test, and pure tone audiometry to identify the vestibular nerve branch of schwannoma origin: preliminary results in a series of 26 cases.

Vestibular schwannoma (VS) is a benign tumor which develops in the internal auditory canal and the cerebellopontine angle, potentially diminishing hearing or balance. Most VS tumors arise from one of two vestibular branches: the superior or inferior vestibular nerve. Determining the specific nerve of origin could improve patient management in terms of preoperative counseling, treatment selection, and surgical decision-making and planning.

Clinical efficacy of hydroxyapatite toothpaste containing Polyol Germanium Complex (PGC) with threonine in the treatment of dentine hypersensitivity.

Introduction: This study aims to evaluate the clinical efficacy of a hydroxyapatite toothpaste containing a Polyol Germanium Complex with threonine in treating dentine hypersensitivity. The study also seeks to monitor the quality of life of the treated dentine hypersensitivity sufferers.

Materials And Methods: This study is a randomized clinical trial with a total of 120 patients with dentine hypersensitivity.

Inflammatory Pseudotumor Simulating a Jugular Foramen Meningioma: Case Report, Technical Video, and Literature Review.

Inflammatory pseudotumor (IP) is a nonneoplastic, reactive inflammatory process, of unknown etiology, characterized by a proliferation of connective tissue with an inflammatory infiltrate, most commonly involving the lungs and orbits. Primary intracranial IP is an extremely rare entity often arising from the meningeal structures of the skull base. We reported an extremely rare case of a primary intracranial IP located in the cerebellopontine angle, mimicking a jugular foramen meningioma.

Topical formulation containing peptides and vitamin C in ampoules improves skin aging signs: Results of a large, international, observational study.

Introduction: Peptide-C ampoules (PC) contain peptides, 10% of vitamin C, hyaluronic acid, and Vichy volcanic mineralizing water.

Aims: To assess the effectiveness and tolerability of PC.

Patients And Methods: An observational study conducted in 9 countries in women ≥30 years old with signs of facial skin aging (grade >0 for forehead and/or crow's feet wrinkles and bothered by skin quality).

Microsurgical treatment of symptomatic vestibular schwannomas in patients under 40: different results before and after age of 30.

In 10-15% of cases of vestibular schwannoma (VS), age at diagnosis is 40 years or less. Little is known about the differences in natural history, surgical findings, and postoperative outcomes of such younger patients as compared to those of greater age. To analyze clinical and surgical and imaging data of a consecutive series of n = 50 patients with unilateral sporadic VS, aged 40 years or younger - separated in a very young group (15-30 years) and a moderately young group (31-40 years).

"Limited" Extreme Lateral Infrajugular Transcondylar-Transtubercular Exposure (ELITE) for the Microsurgical Management of C1-C2 Schwannoma: Operative Video.

The extreme lateral infrajugular transcondylar-transtubercular exposure (ELITE) is a surgical approach developed in the late 1980s by Prof. T. Fukushima and represents the dorsolateral inferior skull base procedure of choice to approach lesion located ventrolaterally at the level of the craniocervical junction (CCJ).

Using the Method of "Optical Biopsy" of Prostatic Tissue to Diagnose Prostate Cancer.

The possibilities of using optical spectroscopy methods in the differential diagnosis of prostate cancer were investigated. Analytical discrimination models of Raman spectra of prostate tissue were constructed by using the projections onto latent structures data analysis(PLS-DA) method for different wavelengths of exciting radiation-532 and 785 nm. These models allowed us to divide the Raman spectra of prostate cancer and the spectra of hyperplasia sites for validation datasets with the accuracy of 70-80%, depending on the specificity value.

Koos grade IV vestibular schwannomas: considerations on a consecutive series of 60 cases-searching for the balance between preservation of function and maximal tumor removal.

Koos grade IV vestibular schwannomas (VS) (maximum diameter > 3 cm) compress the brainstem and displace the fourth ventricle. Microsurgical resection with attention to the right balance between preservation of function and maximal tumor removal is the treatment of choice. Our series consists of 60 consecutive patients with unilateral VS, operated on from December 2010 to July 2019.

Microvascular decompression for typical trigeminal neuralgia: Personal experience with intraoperative neuromonitoring with level-specific-CE-Chirp® brainstem auditory evoked potentials in preventing possible hearing loss.

Background: Permanent hearing loss after posterior fossa microvascular decompression (MVD) for typical trigeminal neuralgia (TTN) is one of the possible complications of this procedure. Intraoperative brainstem auditory evoked potentials (BAEPs) are used for monitoring the function of cochlear nerve during cerebellopontine angle (CPA) microsurgery. Level-specific (LS)-CE-Chirp® BAEPs are the most recent evolution of classical click BAEP, performed both in clinical studies and during intraoperative neuromonitoring (IONM) of acoustic pathways during several neurosurgical procedures.

Minimally Invasive Microsurgical Removal of Giant Dumbbell Thoracic Neurofibroma: Usefulness of Current Technology for Minimizing the Approach-Illustrative Case and Technical Video.

Dumbbell-shaped thoracic tumors usually arise from neurogenic elements within the spinal canal and are characterized by involvement of both spinal canal and posterior thoracic cavity. The tumor mass becomes frequently very large growing inside and outside of the spinal canal, through the connection of the neural foramen, involving the surrounding structures. Most of the dumbbell tumors are peripheral nerve sheath tumors, of which neurofibromas and schwannomas represent the vast majority.

Surgical management for large vestibular schwannomas: a systematic review, meta-analysis, and consensus statement on behalf of the EANS skull base section.

Background And Objective: The optimal management of large vestibular schwannomas continues to be debated. We constituted a task force comprising the members of the EANS skull base committee along with international experts to derive recommendations for the management of this problem from a European perspective.

Material And Methods: A systematic review of MEDLINE database, in compliance with the PRISMA guidelines, was performed.

Neuroprotective Potential of Peptides HFRWPGP (ACTHPGP), KKRRPGP, and PyrRP in Cultured Cortical Neurons at Glutamate Excitotoxicity.

Glutamate (Glu) excitotoxicity, which accompanies brain ischemia or traumatic brain injury, is the leading mechanism of neuronal death. In the present work, we studied the effects of the peptides HFRWPGP (ACTHPGP), KKRRPG, and PyrRP on the survival of cultured cortical neurons on the background of excitotoxic effect of Glu (100 µM). Biochemical (MTT/WST) and morphometric analyzes showed that, depending on the dose, ACTHPGP and KKRRPGP protect neurons from the cells death, while PyrRP, conversely, enhances it.

[Prevalence of Advanced Chronic Kidney Disease in Patients with Nonvalvular Atrial Fibrillation Hospitalized in Cardiology Departments].

Objective: To estimate the prevalence of chronic kidney disease (CKD) 3b - 5 stages and the newly diagnosed sustained reduction in glomerular filtration rate (GFR) <30 ml / min / 1.73 m2 in patients with atrial fibrillation (AF) in real clinical practice, as well as the features of their anticoagulant therapy.

Materials And Methods:  Retrospectively, data of all discharge epicrisis from cardiological departments of five Moscow hospitals from June 1, 2016 to May 31, 2017 were analyzed.

A new threat from an old enemy: Re‑emergence of coronavirus (Review).

The new outbreak of coronavirus from December 2019 has brought attention to an old viral enemy and has raised concerns as to the ability of current protection measures and the healthcare system to handle such a threat. It has been known since the 1960s that coronaviruses can cause respiratory infections in humans; however, their epidemic potential was understood only during the past two decades. In the present review, we address current knowledge on coronaviruses from a short history to epidemiology, pathogenesis, clinical manifestation of the disease, as well as treatment and prevention strategies.

Extended Middle Cranial Fossa Approach for Lesions Invading Infratemporal Fossa: Anatomic Study and Clinical Application.

Skull base tumors arising from the middle cranial fossa and invading of the infratemporal fossa (ITF) and middle cranial fossa are challenging for neurosurgeons, because of complex anatomy and critical neurovascular structure involvement. The first pioneering ITF approaches resulted in invasive procedures and carried a high rate of surgical morbidity. However, the acquisition of deep anatomical knowledge, and the development operative skills and reconstruction techniques allowed surgeons to achieve total or near total resection of many ITF lesions with a low morbidity rate.

Resistance of THP-1 Leukemia Cells Infected with Cytomegalovirus to Anti-tumor Antibiotic Doxorubicin and Restoration of the Sensitivity by Inhibitors of the PI3K/AKT/mTOR Molecular Pathway.

Results obtained showed that infection with HCMV prevented the death of THP-1 cells treated with DOX in both active and latent forms of infection. In the presence of mTOR inhibitors (rapamycin and Torin2), the sensitivity of the infected cells to DOX was restored. Rapamycin inhibited the expression of the HCMV protein IE1-p72 and increased sensitivity to DOX.

Flexible endoscopic assistance in the surgical management of vestibular schwannomas.

Endoscopic-assisted techniques have extensively been applied to vestibular schwannoma (VS) surgery allowing to increase the extent of resection, minimize complications, and preserve facial nerve and auditory functions. In this paper, we retrospectively analyze the effectiveness of flexible endoscope in the endoscopic-assisted retrosigmoid approach for the surgical management of VS of various sizes. The authors conducted a retrospective analysis on 32 patients who underwent combined microscopic and flexible endoscopic resection of VS of various sizes over a period of 16 months.

[Comparison of sample preparation techniques in chemical-toxicological analysis of urine for the presence of narcotic drugs, psychotropic substances and their metabolites].

The sample preparation procedures within undirected chemical-toxicological urine analysis for GCMS and HPLC-MS/MS methods are presented. These methods are intended for analytical diagnosis of the presence of narcotic drugs, psychotropic substances and their metabolites in humans.

[Forensic, clinical and anatomical aspects of diagnosising diaphragmatic injuries in stab wounds].

Aim: To improve the quality of clinical and forensic examination and diagnosis of diaphragmatic injury (DI) from stab wounds by defining the boundaries of the thoraco-abdominal region and the topographic and anatomical characteristics of thoracoabdominal stab wounds.

Material And Methods: Based on the results of forensic medical examinations of 81 corpses with stab wounds, the clinical and anatomical characteristics of thoraco-abdominal stab wounds were noted; and in anatomical dissections of 90 cadavers, the boundaries of the intercostal spaces and costophrenic recess were modeled.

Result: The boundaries of the thoraco-abdominal region, and the location of stab wounds that make the probability of DI particularly high (10-50%) were clarified.

Immunoglobulinopathies in patients with angioimmunoblastic T-cell lymphoma.

Aim: The aim of the study was to characterize quantitative and qualitative immunoglobulinopathies in patients with AITL at the onset of the disease.

Materials And Methods: 55 patients with newly diagnosed AITL were enrolled in the study, the male/female ratio was 30/25; median age was 61 (29-81) years. Diagnosis was based on standard WHO criteria.