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Open Journal of Anesthesiology 2023年第5期13卷 95-100页

作者： valery piacherski Lidziya Muzyka Department of Anesthesiology and Intensive Care Mogilev Regional Clinical Hospital Mogilev Belarus Department of Anesthesiology and Intensive Care Сentral District Hospital of Krugloe Krugloe Belarus Department of Anesthesiology and Intensive Care Сentral District Hospital of Belynichi Belynichi Belarus

The first way to identify the needle in relation to the peripheral nerve W. Halsted and R. Hall in 1884 performed the first regional blockade (using direct visualization). However, Vassily von Anrep was a few months earlier described the blockade of the peripheral nerve by anatomical landmarks. In 1912, the blockade of the brachial plexus was first performed using electrical stimulation, but this technique has been widely used only since 1962. The most popular way to identify the needle relative to the nerve at the moment remains US guidance. A promising direction may be optical coherence tomography. But this method is under development. In the last decade, a method for determining the pressure of a local anesthetic has been introduced into practice to determine the position of the needle relative to the nerve.

关键词： Regional Anesthesia Electrical Nerve Stimulation Ultrasound Guidance Оptical Coherence Tomography Local Anesthetic Pressure Injection Pressure

Reducing the Dose of Local Anesthetic Reduces the Duration of Analgesia—Myth or Reality: A Double-Blind Randomized Study

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Open Journal of Anesthesiology 2015年第1期5卷 7-12页

作者： piacherski valery Marachkou Aliaksei Department of Anesthesiology and Intensive Care Health Care Institution “Mogilev Regional Hospital” Mogilev Republic of Belarus

Background: The aim of the study is to determine the effect of a reduction in dose of local anesthetic blockade on the development of the sciatic nerve. Methods: Forty blocks of sciatic nerve were used in a double-blind randomized research, under ultrasonic guidance, using an electric stimulator with the peripheral nerves. Forty patients were divided into 2 equal groups. In the first group, a sciatic nerve block was performed with 5 ml of 0.75% ropivacaine solution (37.5 mg);in the second group, 10 ml of 0.75% ropivacaine solution (75 mg) was used. The assessment of the time required for developing sensory and motor blocks was carried out from the beginning of local anesthetic solution injection in the fascial sheath of the sciatic nerve. Results: Demographic data of patients were identical in the two sample groups. The time required for achieving a complete sensory block in groups treated with 5 and 10 ml ropivacaine was 45 (40;48) and 30 (28;30) min, respectively, (р 0.05. Conclusions: Complete blockade of the sciatic nerve is developed using 5 ml of 0.75% ropivacaine. Reducing the dose of ropivacaine prolongs the latent period of the LA during the blockade of the sciatic nerve. Time of postoperative analgesia was not significantly changed.

关键词： Ropivacaine Sciatic Nerve Ultrasound Guidance

Features and Principles the Spread of Local Anesthetic Blockade of the Sciatic Nerve at Depends on the Amount of Anesthetic

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Open Journal of Anesthesiology 2014年第2期4卷 31-35页

作者： piacherski valery Marachkou Aliaksei Health Care Institution Mogilev Regional Hospital Mogilev The Republic of Belarus

Aim: To study the features of local anesthetic solution spreading during sciatic nerve block in dependence on the anesthetic solution volume. Material and Methods: One hundred and sixty nine cases of sciatic nerve blocks done under ultrasonic visualization control were analyzed. Sciatic nerve blocks were performed by lidocaine in volumes 30;25;20;15;12.5;10;7.5;6.5;5;4.5 ml. The cross-section area, equal to local anesthetic spreading, was determined;the extension of the anesthetic solution spreading along sciatic nerve was calculated. Results: The anesthetic agent solution spreads along sciatic nerve in proximal and distal direction, forming a kind of cylinder. The minimum volume of the local anesthetic, which covers sciatic nerve in the whole, is 5 ml. A rare (1.77%) variation of sciatic nerve structure was described, in which tibial and common peroneal nerves develop directly from the branches of sacral plexus. Conclusion: The decrease of the local anesthetic volume leads to reduction of its spreading distance and cross-section area. Ultrasonic visualization can provide for sciatic nerve anatomical peculiarities, which can have an effect on the block quality.

关键词： Sciatic Nerve Block Ultrasound-Guided Local Anesthetic Spreading

Comparison of Time Development of the Sciatic Nerve Blockade Performed with 1% Lidocaine Subgluteal and Popliteal Approach under Ultrasound Guidance

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Open Journal of Anesthesiology 2014年第12期4卷 324-331页

作者： piacherski valery Marachkou Aliaksei Brukhnou Andrei Zakhar Kokhan Department of Anesthesiology and Intensive Care Health Care Institution “Mogilev Regional Hospital” Mogilev Republic of Belarus

The existing researches in the field of regional anesthesia of the sciatic nerve show that if popliteal sciatic nerve blockade is performed, the time of the development of the sciatic nerve anesthesia is longer in comparison with subgluteal sciatic nerve blockade. Background: The aim of the research is to compare the time of the development of the sciatic nerve blockade performed with 1% lidocaine with epinephrine (1:200,000) in subgluteal and popliteal areas under ultrasound guidance. Materials and Methods: Patients were divided into two groups. In Group A (20 patients), the subgluteal approach to block the sciatic nerve was taken;in Group B (20 patients), the popliteal approach was applied. All blockades of the sciatic nerve were performed with 1% lidocaine (30 ml of lidocaine with epinephrine (1:200,000)) and electrical stimulation of peripheral nerves under ultrasound guidance. We measured the time of the development of sensory and motor blocks. Results: In Group A, the sciatic nerve sensory block developed in 15 (14 - 16) minutes, a complete motor block developed in 15.5 (15 - 17) minutes. In Group B the sciatic nerve sensory block developed in 40 (38.5 - 42.5) minutes while a complete motor block did not develop in any patient. Conclusion: When the sciatic nerve is blocked in subgluteal area with 30 ml of 1% lidocaine with epinephrine (1:200,000) under ultrasound guidance, sensory blocks develop faster than during the popliteal blockade: 15 (14 - 16) minutes vs. 40 (38.5 - 42.5) minutes respectively. The opportunity to define the place of the introduction of local anesthetic in our research is limited.

关键词： Blockade of the Sciatic Nerve Lidocaine Subgluteal Approach Popliteal Approach Ultrasound Guidance

Comparison of Three Methods of Regional Anesthesia of Peripheral Nerves and Plexuses

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Open Journal of Anesthesiology 2012年第5期2卷 237-243页

作者： valery piacherski Aliaksei Marochkov Andrei Brukhnou Zakhar Kokhan Department of Anaesthesiology and Intensive Care Mogilev Regional Hospital Mogilev Republic of Belarus.

Aim: There were acquitted 1105 nerve blocks on 762 patients by means of three methods of peripheral nerves and plexuses identification to compare the safety and efficiency of the methods of regional anesthesia. Methods: Depending on the technique of carrying out the peripheral nerve blocks, patients were divided into 3 groups. 1st group: the identification of the correct placement of the injection needle was done by eliciting paresthesia (572 blocks were performed on 395 patients);2nd group: an electrical nerve stimulator was used to locate the nerve (164 blocks on 110 patients);3rd group: the location of the nerve was identified using ultrasonic visual guidance (369 blocks on 257 patients). Results and Conclusion: In 1st group 8 (1.4%) accidental intravascular injections of local anesthetic, 1 case of Horner syndrome (0.17%), 1 case of phrenical nerve were registered. In 17 cases there were performed other methods of anesthesia by reason of inefficiency of the block. In 2nd group 1 case (0.61%) of intravascular injection was noticed. The block was ineffective in single case. There was no complication received in the 3rd group. All the blocks were effective.

关键词： Regional Anesthesia Ultrasound-Guided Efficacy Complications

Pressure of Local Anesthetic Solution While Performing Sciatic Nerve Blockade in Human Subgluteal Area

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Open Journal of Anesthesiology 2014年第11期4卷 276-280页

作者： Zakhar Kokhan Andrei Brukhnou Aliaksei Marochkov valery piacherski Department of Anaesthesiology and Intensive Care Mogilev Regional Hospital Mogilev Republic of Belarus

Intraneural introduction of local anesthetic belongs to the existing complications of peripheral nerves blockades. The damage of peripheral nerves is associated with the damaging effect of the injection needle and with the pressure caused by the introduction of local anesthetic. Purpose: Determine the pressure of the local anesthetic in fascial compartment of the sciatic nerve during his administration in the blockade of the sciatic nerve subgluteal access. Materials and Methods: Submitted blockade of the sciatic nerve subgluteal access in 22 patients with peripheral nerve electrostimulation under ultrasound guidance. To measure interstitial pressure system was used with the inclusion of a probe invasive blood pressure. Results: During the introduction of 1 ml in the fascial compartment of the sciatic nerve, the pressure of 0.77 psi (40 mmHg) was registered. In the course of the further introduction of local anesthetic up to 13 ml, the pressure did not alter validly (p > 0.05) and its average was 40 (35;45) mmHg or 0.77 (0.68;0.87) psi. This is the first study that has allowed to determine the pressure of local anesthetic in the fascial compartment of the sciatic nerve at the time of its introduction, the blockade of the sciatic nerve subgluteal access for the first time determined the probable maximum pressure intraneural injection of local anesthetic. The disadvantage of this study is that it is impossible to measure the pressure of administration over 5.8 psi (300 mmHg), and the lack of opportunity to assess the intraneural blood flow in the sciatic nerve during the creation of such pressure.

关键词： Peripheral Blockade Sciatic Nerve Pressure of the Local Anestnetiс Ultrasound Guidance

A Spiral History of the Development of Ways to Identify the Correct Position of the Injection Needle in Relation to the Peripheral Nerve: A Brief Historical Essay

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Preface–Introduction to the Special Issue for Chinese-Russian Workshop on Biophotonics and Biomedical Optics

Open Journal of Anesthesiology（麻醉学期刊） 2023年第5期

作者： valery piacherski Lidziya Muzyka

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Journal of Innovative Optical Health Sciences 2024年第5期17卷 1-3页

作者： Tingting Yu Dan Zhu valery V.Tuchin Britton Chance Center for Biomedical Photonics-MoE Key Laboratory for Biomedical Photonics Advanced Biomedical Imaging FacilityWuhan National Laboratory for Optoelectronics–Advanced Biomedical Imaging FacilityHuazhong University of Science and TechnologyWuhan 430074China Department of Optics and Biophotonics Science Medical CenterSaratov State UniversitySaratov 410012Russia Laboratory of Laser Diagnostics of Technical and Living Systems Institute of Precision Mechanics and ControlFRC“Saratov Scientic Centre of the Russian Academy of Sciences”Saratov 410028Russia Laboratory of Laser Molecular Imaging and Machine Learning Tomsk State UniversityTomsk 634050Russia

The Chinese-Russian Workshop on Biophotonics and Biomedical Optics 2023 was held online twice on 18–21 September and 25–26 September *** bilateral workshop brought together both Russian and Chinese scientists,engineers,and clinical researchers from a variety of disciplines engaged in applying optical science,photonics,and imaging technologies to problems in biology and *** the workshops,two plenary lectures and twenty invited presentations were *** special issue selects some papers from both Russian and Chinese sides,consisting of one review and seven original research articles.

关键词： Russian photonics Biomedical

A Review on Characteristics, Extraction Methods and Applications of Renewable Insect Protein

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Journal of Renewable Materials 2024年第5期12卷 923-950页

作者： Adelya Khayrova Sergey Lopatin valery Varlamov Research Centre of Biotechnology of the Russian Academy of Sciences Moscow119071Russia

Due to the expected rise in the world population,an increase in the requirements for quality and safety of food and feed is expected,which leads to the growing demand for new sources of sustainable and renewable *** protein is gaining importance as a renewable material for several reasons,reﬂecting its potential contribu-tions to sustainability,resource efﬁciency,and environmental *** insect species are known to be able to efﬁciently convert organic waste into high-value products such as protein,requiring less land and water compared to traditional *** addition,insect farming produces fewer greenhouse gas emissions,contri-buting to mitigating climate *** are considered as a major potential alternative to animal or plant protein due to their many nutritional beneﬁts,including high protein,mineral,and vitamin *** average,the protein content of insects ranges between 35%and 60%dry weight,which exceeds plant protein sources,such as cereal,soybeans,and *** the acceptance of insect protein grows and technologies advance,the food and feed industries continue to explore and expand their applications,offering consumers diverse and sustainable pro-tein *** this review,we discuss the recentﬁndings relating to insect protein focusing on its characteristics,extraction methods,applications,and opportunities along with some trade-offs and uncertainties.

关键词： Circular economy waste utilisation protein insect Hermetia illucens

Comparison of Three Methods of Regional Anesthesia of Peripheral Nerves and Plexuses

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