Publications by authors named "D N Andreev"

264 Publications

"Primary sellar abscesses: a systematic review and two rare observations".

World Neurosurg 2021 Jul 14. Epub 2021 Jul 14.

I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University). Address: Bolshaya Pirogovskaya st., 19/1, Moscow, 119146, Russian Federation. Electronic address:

Introduction: Abscesses of the chiasmatic-sellar region are quite rare, and are often a result of surgical intervention, trauma or tumor growth. Primary abscesses are extremely rare and represent a group of abscesses the occur due to internal microbial seeding. Primary abscesses are rarely reported.

Objective: We present two clinical cases featuring primary abscesses of the chiasmal-sellar region. To put into perspective the rarity of these findings, we performed a systematic review of existing clinical reports regarding this pathology.

Materials And Methods: A systematic review of literature was conducted to gather existing clinical reports on primary abscesses of the chiasmatic-sellar region. Two personal findings are added to the literature review, including a 13-year-old female, and a 58-year-old male are presented with chiasmal-sellar region primary abscesses. The diagnostic aspects, treatment strategy and outcomes are discussed.

Results: Both patients included in the report had positive outcome. The pediatric patient developed a recurrence of the abscess and was treated accordingly. Overall, 41 cases of primary abscesses of this region have been reported in literature, of which 6 - in children under 18 years of age. The main nonspecific clinical manifestations include headaches, visual impairment and endocrine pathology. Acute inflammatory responses are rarely seen, despite infectious genesis. Transnasal endoscopic surgical treatment offers diagnostic and treatment advantages.

Conclusion: Proper diagnostic procedures can aid in correct treatment strategy and improve overall outcome.
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http://dx.doi.org/10.1016/j.wneu.2021.05.137DOI Listing
July 2021

Surgical Correction of a Clivus Cerebrospinal Fluid Fistula: A Technical Report.

World Neurosurg 2021 Jun 18;152:114-120. Epub 2021 Jun 18.

Department of Human Anatomy, I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation, Moscow, Russian Federation. Electronic address:

Background: Cerebrospinal fistulas of the clivus region often result from previous surgical intervention at the skull base. The localization and size of the fistula determine the appropriate treatment strategy. When flap closure is not possible, the microsuture technique with autograft placement provides a favorable outcome.

Methods: We present a technical report on the application of the microsuture technique for clivus region cerebrospinal fluid fistula closure in a patient with previous chordoma treatment and nonspecific coronavirus disease 2019 complications.

Results: The application of the microsuture technique resulted in stable remission of the fistula and complete regression of the clinical manifestations.

Conclusions: The microsuture technique for clivus region fistula closure is a potentially valuable alternative to vascularized flap closure.
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http://dx.doi.org/10.1016/j.wneu.2021.06.061DOI Listing
June 2021

Ecological criteria for assessing the content of petroleum hydrocarbons in the main soils of coniferous-deciduous forests and forest steppe.

Environ Geochem Health 2021 Jun 12. Epub 2021 Jun 12.

Microbiology and Immunology Department, Perm State University, 15, Bukireva st, Perm, Russia, 614990.

The effect of pollution of Albicluvisols/Retisols, Calcaric Leptosols, Luvic Phaeozems, Greyzamic Phaeozems and Folic Fluvisols with oil (Solovatovsky oil field, Perm region) added in amounts of 1, 2, 3 and 5 g oil/kg of soil on the organisms was studied in a model laboratory experiment. Oil addition showed phytotoxic effects on root length in Triticum aestivum L., Lepidium sativum L., Picea obovata Ledeb. and Pinus sylvestris L. in all soils. However, oil contamination of Calcaric Leptosols and Greyzamic Phaeozems led to growth stimulation in Picea obovata seedlings. A remarkable shift in the diversity and number of colony-forming units of heterotrophic and oil-oxidizing bacteria was detected in all soil types. The maximum decrease in biodiversity (45%) was noted for heterotrophic bacteria in Luvic Phaeozems. Aqueous extracts from all oil-contaminated soils had a toxic effect on Chlorella vulgaris Beijer, causing an increase in biomass by more than 30%, but did not show acute toxicity on Daphnia magna Straus. Oil addition in the range of 1-3 g oil/kg soil posed no environmental risk to human health. However, oil addition at 5 g oil/kg of soil led to an increase in the level of carcinogenic risk to children to the threshold values of acceptable risk and ranged from 0.95 × 10 for Greyzamic Phaeozems and Folic Fluvisols to 1.098 × 10 for Luvic Phaeozems. Our results suggest that the reaction of test organisms to oil pollution depends on the soil type, and their complex application makes it possible to identify the most sensitive factor and assess the dangerous level of pollution.
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http://dx.doi.org/10.1007/s10653-021-00998-9DOI Listing
June 2021

[Helicobacter pylori resistance in the Russian Federation: a meta-analysis of studies over the past 10 years].

Ter Arkh 2020 Dec 26;92(11):24-30. Epub 2020 Dec 26.

Yevdokimov Moscow State University of Medicine and Dentistry.

Aim: Systematization of data on antibiotic resistance of Helicobacter pylori in Russia over the past 10 years.

Methods: A search for studies were carried out in electronic databases MEDLINE/PubMed, EMBASE, Cochrane, Russian Science Citation Index. We analyzed the papers published over the past 10 years (2011 to 2020). In the final analysis, publications were selected from periodical peer-reviewed foreign and Russian publications, in which validated tests for assessing the microorganism resistance were used with detailed descriptive statistics, which allows the obtained data to be included in the meta-analysis.

Results: The final analysis included 11 studies (808 isolates). H. pylori resistance to clarithromycin was 10.39% (95% confidence interval CI 7.10314.219), metronidazole 33.95% (95% CI 15.32955.639), amoxicillin 1.35% (95% CI 0.281 3.202), levofloxacin 20.0% (95% CI 12.63728.574), tetracycline 0.98% (95% CI 0.3532.163). Double clarithromycin-metronidazole resistance was reported in 2.7% (95% CI 1.1364.345).

Conclusion: This meta-analysis is the first analytical work that allows objectifying the current structure of H. pylori antibiotic resistance in the Russian Federation. The data obtained in the analysis of publications over the past 10 years indicate a low resistance of the microorganism to clarithromycin (less than the regulated threshold of 15%), which allows us to consider the triple regimen of eradication therapy as a first-line therapy in our country.
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December 2020

[Recommendations for the Protocol of functional examination of the anorectal zone and disorders classification: the International Anorectal Physiology Working Group consensus and Russian real-world practice].

Ter Arkh 2020 Dec 15;92(12):105-119. Epub 2020 Dec 15.

Ryzhikh National Medical Research Centre for Coloproctology.

This manuscript summarizes consensus reached by the International Anorectal Physiology Working Group (IAPWG) for the performance, terminology used, and interpretation of anorectal function testing including anorectal manometry (focused on high-resolution manometry), the rectal sensory test, and the balloon expulsion test. Based on these measurements, a classification system for disorders of anorectal function is proposed. Aim to provide information about methods of diagnosis and new classification of functional anorectal disorders to a wide range of specialists general practitioners, therapists, gastroenterologists, coloproctologists all who face the manifestations of these diseases in everyday practice and determine the diagnostic and therapeutic algorithm. Current paper provides agreed statements of IAPWG Consensus and comments (in italics) of Russian experts on real-world practice, mainly on methodology of examination. These comments in no way intended to detract from the provisions agreed by the international group of experts. We hope that these comments will help to improve the quality of examination based on the systematization of local experience with the use of the methods discussed and the results obtained. Key recommendations: the International Anorectal Physiology Working Group protocol for the performance of anorectal function testing recommends a standardized sequence of maneuvers to test rectoanal reflexes, anal tone and contractility, rectoanal coordination, and rectal sensation. Major findings not seen in healthy controls defined by the classification are as follows: rectoanal areflexia, anal hypotension and hypocontractility, rectal hyposensitivity, and hypersensitivity. Minor and inconclusive findings that can be present in health and require additional information prior to diagnosis include anal hypertension and dyssynergia.
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http://dx.doi.org/10.26442/00403660.2020.12.200472DOI Listing
December 2020
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