8 research outputs found

    Surgical treatment of paraduodenal pancreatitis

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    Surgical treatment of paraduodenal pancreatitis

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    Π‘Ρ€Π°Π²Π½ΠΈΡ‚Π΅Π»ΡŒΠ½Π°Ρ морфологичСская характСристика Ρ€Π΅Π°ΠΊΡ†ΠΈΠΉ Ρ‚ΠΊΠ°Π½ΠΈ Ρ‡Π΅Π»ΠΎΠ²Π΅ΠΊΠ° Π½Π° Π±ΠΈΠΎΡ€Π΅Π·ΠΎΡ€Π±ΠΈΡ€ΡƒΠ΅ΠΌΡ‹Π΅ Π½ΠΈΡ‚Π΅Π²Ρ‹Π΅ ΠΈΠΌΠΏΠ»Π°Π½Ρ‚Π°Ρ‚Ρ‹

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    A whole new area of using threads/filaments of different composition and with various pulling structures has evolved in plastic and aesthetic surgery. Currently, the selection of products for thread lifting quite wide, but the effect of soft tissue ligature support does not always live up to the expectations of a doctor and a patient. The lack of morphological studies of the tissue response to a particular filamentous implant depending on its composition and structure may be one of the reasons for this. The question of choosing a product, its interaction with tissue, safety and effectiveness, as well as understanding the interval between procedures, correct installation technique remains extremely relevant. The work on studying cellular reactions to filamentous implants in human skin is not numerous and is of a single nature, which is primarily due to the technical and ethical complexity of obtaining material for histological examination. We attempted to evaluate the human responses to various bioresorbable implants in the anterior abdominal wall subcutaneous fat, therefore the first sample was taken from a patient before abdominoplasty, and the other sample from a patient after Β«massive crossΒ» reinforcement via punch abdominal skin biopsies. We further examined human tissue reaction in morphological studies. The study was conducted with the help of Pathological Anatomy Department in Botkin Clinical Hospital Aand with the help of Electronic Microscopy Laboratory, Department of Pathological Anatomy, Vishnevskiy National Surgical Research Institute of the Ministry of Health of The Russian Federation. We aimed to study the anterior abdominal wall subcutaneous fat response to various bioresorbable filament implants, such as PCL+PLLA, PLA, PLA+PGA, PDO. We have come to the conclusion that, in comparison to the experimental work on rats, studies on human skin more accurately reflect the type of tissue reactions to the implant, as well as the filament biodegradation rate. Further research shall evaluate the changes in the mesh layer of the skin over the implant as the most important indicator of the clinical effect of dermal graft reduction. Here we have come to conclusion that PCL+PLLA threads are convergent in terms of the gradual implant biodegradation as well as the most irritating effect on surrounding tissues and the sequence of cellular reactions. Interval and frequency of PCL+PLLA reinforcement is of importance as well. Non-surgical correction with PCL + PLLA filaments can be a method of choice in correcting involutional skin changes, as it gives a noticeable balance of productive inflammation, biodegradation time and functional activity of the dermis.Π’ настоящСС врСмя Π²Ρ‹Π±ΠΎΡ€ ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ†ΠΈΠΈ для Π½ΠΈΡ‚Π΅Π²ΠΎ-Π³ΠΎ Π»ΠΈΡ„Ρ‚ΠΈΠ½Π³Π° достаточно ΡˆΠΈΡ€ΠΎΠΊ, Π½ΠΎ всС-Ρ‚Π°ΠΊΠΈ эффСкт ΠΎΡ‚ примСнСния Π»ΠΈΠ³Π°Ρ‚ΡƒΡ€Π½ΠΎΠΉ ΠΏΠΎΠ΄Π΄Π΅Ρ€ΠΆΠΊΠΈ мягких Ρ‚ΠΊΠ°Π½Π΅ΠΉ Π½Π΅ всСгда ΠΎΠΏΡ€Π°Π²Π΄Ρ‹Π²Π°Π΅Ρ‚ оТидания Π²Ρ€Π°Ρ‡Π° ΠΈ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚Π°. Одна ΠΈΠ· ΠΏΡ€ΠΈΡ‡ΠΈΠ½ этого Π½Π΅Π΄ΠΎΡΡ‚Π°Ρ‚ΠΎΡ‡Π½ΠΎΡΡ‚ΡŒ морфологичСских исслСдований Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ Ρ‚ΠΊΠ°Π½ΠΈ Π½Π° Ρ‚ΠΎΡ‚ ΠΈΠ»ΠΈ ΠΈΠ½ΠΎΠΉ Π½ΠΈΡ‚Π΅Π²ΠΎΠΉ ΠΈΠΌΠΏΠ»Π°Π½Ρ‚Π°Ρ‚ для дальнСйшСго ΠΊΠΎΡ€Ρ€Π΅ΠΊΡ‚Π½ΠΎΠ³ΠΎ Π²Ρ‹Π±ΠΎΡ€Π° согласно Π΅Π³ΠΎ составу, поэтому вопрос ΠΎ Π²Ρ‹Π±ΠΎΡ€Π΅ ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ‚Π° для использования, Π΅Π³ΠΎ взаимодСйствии с Ρ‚ΠΊΠ°Π½ΡŒΡŽ, бСзопасности ΠΈ эффСктивности, Π° Ρ‚Π°ΠΊΠΆΠ΅ ΠΏΠΎΠ½ΠΈΠΌΠ°Π½ΠΈΠΈ ΠΈΠ½Ρ‚Π΅Ρ€Π²Π°Π»Π° ΠΌΠ΅ΠΆΠ΄Ρƒ ΠΏΡ€ΠΎΡ†Π΅Π΄ΡƒΡ€Π°ΠΌΠΈ, ΠΏΡ€Π°Π²ΠΈΠ»ΡŒΠ½Ρ‹ΠΌ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ установки самого ΠΈΠΌΠΏΠ»Π°Π½Ρ‚Π°Ρ‚Π° остаётся Ρ‡Ρ€Π΅Π·Π²Ρ‹Ρ‡Π°ΠΉΠ½ΠΎ Π°ΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½Ρ‹ΠΌ. Π’ связи с Ρ‚Π΅ΠΌ, Ρ‡Ρ‚ΠΎ Ρ€Π°Π±ΠΎΡ‚Ρ‹ ΠΏΠΎ ΠΈΠ·ΡƒΡ‡Π΅Π½ΠΈΡŽ ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½Ρ‹Ρ… Ρ€Π΅Π°ΠΊΡ†ΠΈΠΉ Π² ΠΊΠΎΠΆΠ΅ Ρ‡Π΅Π»ΠΎΠ²Π΅ΠΊΠ° Π½Π° Π½ΠΈΡ‚Π΅Π²Ρ‹Π΅ ΠΈΠΌΠΏΠ»Π°Π½Ρ‚Π°Ρ‚Ρ‹ Π½Π΅ многочислСнныС ΠΈ носят Π΅Π΄ΠΈΠ½ΠΈΡ‡Π½Ρ‹ΠΉ Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€, Ρ‡Ρ‚ΠΎ, Π² ΠΏΠ΅Ρ€Π²ΡƒΡŽ ΠΎΡ‡Π΅Ρ€Π΅Π΄ΡŒ, обусловлСно ΡΠ»ΠΎΠΆΠ½ΠΎΡΡ‚ΡŒΡŽ ΠΎΡ€Π³Π°Π½ΠΈΠ·Π°Ρ†ΠΈΠΈ получСния ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Π° для гистологичСского исслСдования ΠΏΠΎ тСхничСским ΠΈ этичСским ΠΏΡ€ΠΈΡ‡ΠΈΠ½Π°ΠΌ, ΠΌΡ‹ ΠΏΠΎΠΏΡ‹Ρ‚Π°Π»ΠΈΡΡŒ ΠΎΡ†Π΅Π½ΠΈΡ‚ΡŒ Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ Ρ‡Π΅Π»ΠΎΠ²Π΅ΠΊΠ° Π½Π° Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Π΅ Π±ΠΈΠΎΡ€Π΅Π·ΠΎΡ€Π±ΠΈΡ€ΡƒΠ΅ΠΌΡ‹Π΅ ΠΈΠΌΠΏΠ»Π°Π½Ρ‚Π°Ρ‚Ρ‹ Π² ΠΏΠΎΠ΄ΠΊΠΎΠΆΠ½ΠΎ-ΠΆΠΈΡ€ΠΎΠ²ΠΎΠΉ ΠΊΠ»Π΅Ρ‚Ρ‡Π°Ρ‚ΠΊΠ΅ Π² области ΠΏΠ΅Ρ€Π΅Π΄Π½Π΅ΠΉ стСнки ΠΆΠΈΠ²ΠΎΡ‚Π°, использовав ΠΊΠΎΠΆΡƒ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΊΠΈ ΠΏΠ΅Ρ€Π΅Π΄ ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠ΅ΠΌ абдоминопластики, Π° Ρ‚Π°ΠΊΠΆΠ΅ Π΅Ρ‰Π΅ ΠΎΠ΄Π½ΠΎΠΉ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΊΠ΅ Π²Ρ‹ΠΏΠΎΠ»Π½ΠΈΠ»ΠΈ ΠΏΠ°Π½Ρ‡-Π±ΠΈΠΎΠΏΡ‚Π°Ρ‚Ρ‹ ΠΊΠΎΠΆΠΈ ΠΆΠΈΠ²ΠΎΡ‚Π° послС ΠΏΡ€ΠΎΠ²Π΅Π΄Ρ‘Π½Π½ΠΎΠ³ΠΎ «массивного пСрСкрёстного» армирования, ΠΈ Π΄Π°Π»Π΅Π΅ ΠΈΠ·ΡƒΡ‡Π°Π»ΠΈ Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ Ρ‚ΠΊΠ°Π½ΠΈ Ρ‡Π΅Π»ΠΎΠ²Π΅ΠΊΠ° с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ морфологичСского исслСдования. ИсслСдованиС ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΎΡΡŒ Π½Π° Π±Π°Π·Π΅ патологоанатомичСского отдСлСния ΠšΠ‘ ΠΈΠΌ. Π‘.П. Π‘ΠΎΡ‚ΠΊΠΈΠ½Π°, Π° Ρ‚Π°ΠΊΠΆΠ΅ Π½Π° Π±Π°Π·Π΅ Π»Π°Π±ΠΎΡ€Π°Ρ‚ΠΎΡ€ΠΈΠΈ элСктронной микроскопии отдСлСния патологичСской Π°Π½Π°Ρ‚ΠΎΠΌΠΈΠΈ Β«Π˜Π½ΡΡ‚ΠΈΡ‚ΡƒΡ‚Π° Ρ…ΠΈΡ€ΡƒΡ€Π³ΠΈΠΈ ΠΈΠΌ. А.Π’. Π’ΠΈΡˆΠ½Π΅Π²ΡΠΊΠΎΠ³ΠΎΒ». ЦСлью Ρ€Π°Π±ΠΎΡ‚Ρ‹ явилось исслСдованиС Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ ΠΏΠΎΠ΄ΠΊΠΎΠΆΠ½ΠΎ-ΠΆΠΈΡ€ΠΎΠ²ΠΎΠΉ ΠΊΠ»Π΅Ρ‚Ρ‡Π°Ρ‚ΠΊΠΈ Π² области ΠΏΠ΅Ρ€Π΅Π΄Π½Π΅ΠΉ стСнки ΠΆΠΈΠ²ΠΎΡ‚Π° Ρ‡Π΅Π»ΠΎΠ²Π΅ΠΊΠ° Π½Π° Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Π΅ Π±ΠΈΠΎΡ€Π΅Π·ΠΎΡ€Π±ΠΈΡ€ΡƒΠ΅ΠΌΡ‹Π΅ Π½ΠΈΡ‚Π΅Π²Ρ‹Π΅ ΠΈΠΌΠΏΠ»Π°Π½Ρ‚Π°Ρ‚Ρ‹, Ρ‚Π°ΠΊΠΈΠ΅ ΠΊΠ°ΠΊ PCL (ΠΏΠΎΠ»ΠΈΠΊΠ°ΠΏΡ€ΠΎΠ»Π°ΠΊ-Ρ‚ΠΎΠ½) +PLLA (Π»Π΅Π²Ρ‹ΠΉ L-Π»Π°ΠΊΡ‚ΠΈΠ΄ ΠΏΠΎΠ»ΠΈΠΌΠΎΠ»ΠΎΡ‡Π½ΠΎΠΉ кислоты), PLA (полимолочная кислота), PLA+PGA (ΠΏΠΎΠ»ΠΈΠ³Π»ΠΈΠΊΠΎ-лСвая кислота), PDO (полидиоксон). Π’ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π΅ ΠΏΡ€ΠΎΠ²Π΅Π΄Ρ‘Π½Π½ΠΎΠ³ΠΎ исслСдования ΠΏΡ€ΠΈΡˆΠ»ΠΈ ΠΊ Π²Ρ‹Π²ΠΎΠ΄Ρƒ, Ρ‡Ρ‚ΠΎ Π² сравнСнии с ΡΠΊΡΠΏΠ΅Ρ€ΠΈΠΌΠ΅Π½Ρ‚Π°Π»ΡŒΠ½Ρ‹ΠΌΠΈ Ρ€Π°Π±ΠΎΡ‚Π°ΠΌΠΈ Π½Π° крысах исслСдования Π½Π° ΠΊΠΎΠΆΠ΅ Ρ‡Π΅Π»ΠΎΠ²Π΅ΠΊΠ° Π±ΠΎΠ»Π΅Π΅ достовСрно ΠΎΡ‚Ρ€Π°ΠΆΠ°ΡŽΡ‚ Ρ‚ΠΈΠΏ Ρ€Π΅Π°ΠΊΡ†ΠΈΠΉ Ρ‚ΠΊΠ°Π½ΠΈ Π½Π° ΠΈΠΌΠΏΠ»Π°Π½Ρ‚Π°Ρ‚, Π° Ρ‚Π°ΠΊΠΆΠ΅ ΡΠΊΠΎΡ€ΠΎΡΡ‚ΡŒ Π±ΠΈΠΎΠ΄Π΅Π³Ρ€Π°Π΄Π°Ρ†ΠΈΠΈ Π½ΠΈΡ‚ΠΈ. Π’Π°ΠΆΠ½ΠΎΠΉ ΡΠΎΡΡ‚Π°Π²Π»ΡΡŽΡ‰Π΅ΠΉ Π΄Π°Π»ΡŒΠ½Π΅ΠΉΡˆΠΈΡ… исслСдований являСтся ΠΎΡ†Π΅Π½ΠΊΠ° ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠΉ сСтчатого слоя ΠΊΠΎΠΆΠΈ Π½Π°Π΄ ΠΈΠΌΠΏΠ»Π°Π½Ρ‚Π°Ρ‚ΠΎΠΌ, ΠΊΠ°ΠΊ Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ Π²Π°ΠΆΠ½ΠΎΠ³ΠΎ показатСля ΠΏΡ€ΠΈ объяснСнии клиничСского эффСкта сокращСния ΠΊΠΎΠΆΠ½ΠΎΠ³ΠΎ лоскута. Π”Π°ΠΆΠ΅ Π½Π° ΠΏΡ€ΠΈΠΌΠ΅Ρ€Π΅ ΠΎΠ΄Π½ΠΎΠ³ΠΎ случая, ΠΌΡ‹ ΠΏΡ€ΠΈΡˆΠ»ΠΈ ΠΊ Π²Ρ‹Π²ΠΎΠ΄Ρƒ, Ρ‡Ρ‚ΠΎ Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ Ρ€Π°Π·Π΄Ρ€Π°ΠΆΠ°ΡŽΡ‰ΠΈΠΌ эффСктом Π½Π° ΠΎΠΊΡ€ΡƒΠΆΠ°ΡŽΡ‰ΠΈΠ΅ Ρ‚ΠΊΠ°Π½ΠΈ ΠΈ ΠΏΠΎΡΠ»Π΅Π΄ΠΎΠ²Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΡŒΡŽ ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½Ρ‹Ρ… Ρ€Π΅Π°ΠΊΡ†ΠΈΠΉ ΠΊΠΎΠ½Π²Π΅Ρ€Π³Π΅Π½Ρ‚Π½ΠΎ с постСпСнной Π±ΠΈΠΎΠ΄Π΅Π³Ρ€Π°Π΄Π°Ρ†ΠΈΠ΅ΠΉ ΠΈΠΌΠΏΠ»Π°Π½Ρ‚Π°Ρ‚Π° ΠΎΠ±Π»Π°Π΄Π°ΡŽΡ‚ Π½ΠΈΡ‚ΠΈ PCL+PLLA. Π’Π°ΠΊΠΆΠ΅ Π²Π°ΠΆΠ½Ρ‹ΠΌ являСтся шаг ΠΈ частота армирования нитями ΠΈΠ· PCL+PLLA. ΠœΠ΅Ρ‚ΠΎΠ΄ нСхирургичСской ΠΊΠΎΡ€Ρ€Π΅ΠΊΡ†ΠΈΠΈ ΠΈΠ½Π²ΠΎΠ»ΡŽΡ†ΠΈΠΎΠ½Π½Ρ‹Ρ… ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠΉ ΠΊΠΎΠΆΠΈ нитями PCL+PLLA ΠΌΠΎΠΆΠ΅Ρ‚ ΡΠ²Π»ΡΡ‚ΡŒΡΡ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ Π²Ρ‹Π±ΠΎΡ€Π° ΠΏΡ€ΠΈ ΠΊΠΎΡ€Ρ€Π΅ΠΊΡ†ΠΈΠΈ ΠΈΠ½Π²ΠΎΠ»ΡŽΡ†ΠΈΠΎΠ½Π½Ρ‹Ρ… ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠΉ ΠΊΠΎΠΆΠΈ, Ρ‚Π°ΠΊ ΠΊΠ°ΠΊ прослСТиваСтся ΡΠ±Π°Π»Π°Π½ΡΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΡΡ‚ΡŒ Ρ€Π΅Π°ΠΊΡ†ΠΈΠΉ Ρ‡Π΅Π»ΠΎΠ²Π΅ΠΊΠ° ΠΌΠ΅ΠΆΠ΄Ρƒ ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ‚ΠΈΠ²Π½Ρ‹ΠΌ воспалСниСм, Π²Ρ€Π΅ΠΌΠ΅Π½Π΅ΠΌ Π±ΠΈΠΎΠ΄Π΅Π³Ρ€Π°Π΄Π°Ρ†ΠΈΠΈ ΠΈ Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠΉ Π°ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒΡŽ Π΄Π΅Ρ€ΠΌΡ‹

    ΠœΠΎΡ€Ρ„ΠΎΠ»ΠΎΠ³ΠΈΡ‡Π΅ΡΠΊΠΎΠ΅ обоснованиС эффСктивности примСнСния ΡƒΠ»ΡŒΡ‚Ρ€Π°Π·Π²ΡƒΠΊΠΎΠ²ΠΎΠΉ ΠΊΠ°Π²ΠΈΡ‚Π°Ρ†ΠΈΠΈ с 0,2 % раствором лавасСпта ΠΏΡ€ΠΈ Π»Π΅Ρ‡Π΅Π½ΠΈΠΈ Π³Π½ΠΎΠΉΠ½ΠΎ-нСкротичСских ослоТнСний синдрома диабСтичСской стопы

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    Aim - structural and functional analysis of cells from purulent-necrotic wounds in patients with diabetic foot syndrome undergoing ultrasonic treatment with 0.2% Lavasept solution. Material and methods. It is presented morphological/ultrastructural analysis of wound specimens in 90 (DFS) patients aged 27-80 years with diabetic foot syndrome and purulent-necrotic complications who were hospitalized in the department of wounds and wound infections of the Vishnevsky Institute of Surgery in 2013-2016. Main group consisted of 75 patients, control group - 15 patients. Mean age was 58.4Β±8.2 years. All patients had diabetes mellitus type II for previous 13Β±4.5 years. Severity of foot tissue damage was assessed according to Wagner classification (F. Wagner, 1981). 46 (51.1%) patients had Wagner III-IV, 44 (48.9%) patients - Wagner II. Complex treatment included radical surgical management of purulent lesion, surgical revascularization for critical limb ischemia and foot reconstruction at the final stage. Additional measures were complete unloading of the foot, correction of carbohydrate metabolism and concomitant diseases. Topical treatment between surgical stages included dressing with 1.0% betadine solution (once a day). Ultrasonic cavitation was additionally applied in the main group. Electron microscopic examination of specimens was used before treatment, after 3-5 and 7-10 days in order to assess effectiveness of ultrasound cavitation for purulent-necrotic complications of DFS. Results. Ultrasound cavitation with 0.2% Lavasept solution effectively cleans wounds from microbial and cellular detritus, destroys cellular membranes of biofilm-forming microorganisms, prevents their redo development and reinfection of the wound. Effective management of the wounds accelerates reparative processes that allows to perform foot reconstruction early.ЦСль исслСдования - ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠ΅ структурно-Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° ΠΊΠ»Π΅Ρ‚ΠΎΠΊ ΠΈΠ· Ρ€Π°Π½ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… с синдромом диабСтичСской стопы (Π‘Π”Π‘) Π² стадии Π³Π½ΠΎΠΉΠ½ΠΎ-нСкротичСских (ГН) ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠΉ ΠΏΡ€ΠΈ ΡƒΠ»ΡŒΡ‚Ρ€Π°Π·Π²ΡƒΠΊΠΎΠ²ΠΎΠΉ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠ΅ с использованиСм антисСптичСского ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚Π° лавасСпт. ΠœΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π» ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹. ΠŸΡ€Π΅Π΄ΡΡ‚Π°Π²Π»Π΅Π½ морфологичСский/ΡƒΠ»ΡŒΡ‚Ρ€Π°ΡΡ‚Ρ€ΡƒΠΊΡ‚ΡƒΡ€Π½Ρ‹ΠΉ Π°Π½Π°Π»ΠΈΠ· Π±ΠΈΠΎΠΏΡ‚Π°Ρ‚ΠΎΠ² Ρ€Π°Π½ 90 ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² (75 Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… основной Π³Ρ€ΡƒΠΏΠΏΡ‹, 15 - Π³Ρ€ΡƒΠΏΠΏΡ‹ сравнСния) Π² возрастС ΠΎΡ‚ 27 Π΄ΠΎ 80 Π»Π΅Ρ‚ (срСдний возраст Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… 58,4Β±8,2 Π³ΠΎΠ΄Π°) с Π‘Π”Π‘ Π² стадии ГН-ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠΉ, госпитализированных Π² ΠΎΡ‚Π΄Π΅Π» Ρ€Π°Π½ ΠΈ Ρ€Π°Π½Π΅Π²Ρ‹Ρ… ΠΈΠ½Ρ„Π΅ΠΊΡ†ΠΈΠΉ Π˜Π½ΡΡ‚ΠΈΡ‚ΡƒΡ‚Π° Ρ…ΠΈΡ€ΡƒΡ€Π³ΠΈΠΈ ΠΈΠΌ. А.Π’. Π’ΠΈΡˆΠ½Π΅Π²ΡΠΊΠΎΠ³ΠΎ Π² 2013-2016 Π³Π³. Π£ всСх ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² сахарный Π΄ΠΈΠ°Π±Π΅Ρ‚ 2-Π³ΠΎ Ρ‚ΠΈΠΏΠ°. ОбъСм пораТСния Ρ‚ΠΊΠ°Π½Π΅ΠΉ стопы ΠΎΡ†Π΅Π½ΠΈΠ²Π°Π»ΠΈ ΠΏΠΎ классификации F. Wagner (1981). Π£ 46 (51,1%) Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… процСсс Π±Ρ‹Π» Π² стадии Wagner III-IV, Ρƒ 44 (48,9 %) - Π² стадии Wagner II. КомплСксноС Π»Π΅Ρ‡Π΅Π½ΠΈΠ΅ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² Π²ΠΊΠ»ΡŽΡ‡Π°Π»ΠΎ Ρ€Π°Π΄ΠΈΠΊΠ°Π»ΡŒΠ½ΡƒΡŽ Ρ…ΠΈΡ€ΡƒΡ€Π³ΠΈΡ‡Π΅ΡΠΊΡƒΡŽ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΡƒ Π³Π½ΠΎΠΉΠ½ΠΎΠ³ΠΎ ΠΎΡ‡Π°Π³Π°, Ρ…ΠΈΡ€ΡƒΡ€Π³ΠΈΡ‡Π΅ΡΠΊΡƒΡŽ Ρ€Π΅Π²Π°ΡΠΊΡƒΠ»ΡΡ€ΠΈΠ·Π°Ρ†ΠΈΡŽ (ΠΏΠΎ показаниям) ΠΈ ΠΏΠ»Π°ΡΡ‚ΠΈΡ‡Π΅ΡΠΊΡƒΡŽ Ρ€Π΅ΠΊΠΎΠ½ΡΡ‚Ρ€ΡƒΠΊΡ†ΠΈΡŽ стопы, ΠΊΠΎΡ€Ρ€Π΅ΠΊΡ†ΠΈΡŽ ΡƒΠ³Π»Π΅Π²ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΠΎΠ±ΠΌΠ΅Π½Π° ΠΈ ΡΠΎΠΏΡƒΡ‚ΡΡ‚Π²ΡƒΡŽΡ‰ΠΈΡ… Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ. ΠœΠ΅ΡΡ‚Π½ΠΎΠ΅ Π»Π΅Ρ‡Π΅Π½ΠΈΠ΅ Ρ€Π°Π½ ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈ ΠΏΠΎΠ΄ повязками с 1% раствором ΠΉΠΎΠ΄ΠΎΠΏΠΈΡ€ΠΎΠ½Π°. Π’ основной Π³Ρ€ΡƒΠΏΠΏΠ΅ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… мСстноС Π»Π΅Ρ‡Π΅Π½ΠΈΠ΅ дополняли ΡƒΠ»ΡŒΡ‚Ρ€Π°Π·Π²ΡƒΠΊΠΎΠ²ΠΎΠΉ ΠΊΠ°Π²ΠΈΡ‚Π°Ρ†ΠΈΠ΅ΠΉ Ρ€Π°Π½. Для ΠΎΡ†Π΅Π½ΠΊΠΈ эффСктивности ΡƒΠ»ΡŒΡ‚Ρ€Π°Π·Π²ΡƒΠΊΠΎΠ²ΠΎΠΉ ΠΊΠ°Π²ΠΈΡ‚Π°Ρ†ΠΈΠΈ ΠΏΡ€ΠΈ Π»Π΅Ρ‡Π΅Π½ΠΈΠΈ ГН ослоТнСний Π‘Π”Π‘ с Π±ΠΈΠΎΠΏΠ»Π΅Π½ΠΎΡ‡Π½Ρ‹ΠΌΠΈ Ρ„ΠΎΡ€ΠΌΠ°ΠΌΠΈ Π±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠΉ ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΎΡΡŒ элСктронно-микроскопичСскоС исслСдованиС Π±ΠΈΠΎΠΏΡ‚Π°Ρ‚ΠΎΠ² Π΄ΠΎ лСчСния, Π½Π° 3-5-Π΅ ΠΈ 7-10-Π΅ сутки лСчСния. Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹. Π£Π—Πš с 0,2% раствором лавасСпта эффСктивно ΠΎΡ‡ΠΈΡ‰Π°Π΅Ρ‚ Ρ€Π°Π½Ρ‹ ΠΎΡ‚ ΠΌΠΈΠΊΡ€ΠΎΠ±Π½ΠΎΠ³ΠΎ ΠΈ ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½ΠΎΠ³ΠΎ Π΄Π΅Ρ‚Ρ€ΠΈΡ‚Π°, Ρ€Π°Π·Ρ€ΡƒΡˆΠ°Π΅Ρ‚ ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½Ρ‹Π΅ ΠΌΠ΅ΠΌΠ±Ρ€Π°Π½Ρ‹ ΠΌΠΈΠΊΡ€ΠΎΠΎΡ€Π³Π°Π½ΠΈΠ·ΠΌΠΎΠ² ΠΈ Π±ΠΈΠΎΠΏΠ»Π΅Π½ΠΊΠΈ с ΠΌΠΈΠΊΡ€ΠΎΠΎΡ€Π³Π°Π½ΠΈΠ·ΠΌΠ°ΠΌΠΈ, прСдотвращая ΠΈΡ… ΠΏΠΎΠ²Ρ‚ΠΎΡ€Π½ΠΎΠ΅ ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΈ Ρ€Π΅ΠΈΠ½Ρ„ΠΈΡ†ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ Ρ€Π°Π½, Ρ‡Ρ‚ΠΎ способствуСт Π±ΠΎΠ»Π΅Π΅ быстрому ΠΏΠ΅Ρ€Π΅Ρ…ΠΎΠ΄Ρƒ Π²ΠΎΡΠΏΠ°Π»ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ Ρ„Π°Π·Ρ‹ Ρ€Π°Π½Π΅Π²ΠΎΠ³ΠΎ процСсса Π² Ρ€Π΅ΠΏΠ°Ρ€Π°Ρ‚ΠΈΠ²Π½ΡƒΡŽ ΠΈ позволяСт Π² Π±ΠΎΠ»Π΅Π΅ Ρ€Π°Π½Π½ΠΈΠ΅ сроки ΡƒΡΠΏΠ΅ΡˆΠ½ΠΎ ΠΏΡ€ΠΎΠΈΠ·Π²ΠΎΠ΄ΠΈΡ‚ΡŒ ΠΏΠ»Π°ΡΡ‚ΠΈΡ‡Π΅ΡΠΊΡƒΡŽ Ρ€Π΅ΠΊΠΎΠ½ΡΡ‚Ρ€ΡƒΠΊΡ†ΠΈΡŽ стопы

    Morphological justification of the effectiveness of ultrasonic cavitation with 0.2 [Morfologicheskoe obosnovanie Γ©ffektivnosti primeneniia ul'trazvukovoΔ­ kavitatsii s 0,2 % rastvorom lavasepta pri lechenii gnoΔ­no-nekroticheskikh oslozhneniΔ­ sindroma diabeticheskoΔ­ stopy]

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    AIM: Structural and functional analysis of cells from purulent-necrotic wounds in patients with diabetic foot syndrome undergoing ultrasonic treatment with 0.2% Lavasept solution. MATERIAL AND METHODS: It is presented morphological/ultrastructural analysis of wound specimens in 90 (DFS) patients aged 27-80 years with diabetic foot syndrome and purulent-necrotic complications who were hospitalized in the department of wounds and wound infections of the Vishnevsky Institute of Surgery in 2013-2016. Main group consisted of 75 patients, control group - 15 patients. Mean age was 58.4Β±8.2 years. All patients had diabetes mellitus type II for previous 13Β±4.5 years. Severity of foot tissue damage was assessed according to Wagner classification (F. Wagner, 1981). 46 (51.1%) patients had Wagner III-IV, 44 (48.9%) patients - Wagner II. Complex treatment included radical surgical management of purulent lesion, surgical revascularization for critical limb ischemia and foot reconstruction at the final stage. Additional measures were complete unloading of the foot, correction of carbohydrate metabolism and concomitant diseases. Topical treatment between surgical stages included dressing with 1.0% betadine solution (once a day). Ultrasonic cavitation was additionally applied in the main group. Electron microscopic examination of specimens was used before treatment, after 3-5 and 7-10 days in order to assess effectiveness of ultrasound cavitation for purulent-necrotic complications of DFS. RESULTS: Ultrasound cavitation with 0.2% Lavasept solution effectively cleans wounds from microbial and cellular detritus, destroys cellular membranes of biofilm-forming microorganisms, prevents their redo development and reinfection of the wound. Effective management of the wounds accelerates reparative processes that allows to perform foot reconstruction early.ЦСль исслСдования - ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠ΅ структурно-Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° ΠΊΠ»Π΅Ρ‚ΠΎΠΊ ΠΈΠ· Ρ€Π°Π½ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… с синдромом диабСтичСской стопы (Π‘Π”Π‘) Π² стадии Π³Π½ΠΎΠΉΠ½ΠΎ-нСкротичСских (ГН) ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠΉ ΠΏΡ€ΠΈ ΡƒΠ»ΡŒΡ‚Ρ€Π°Π·Π²ΡƒΠΊΠΎΠ²ΠΎΠΉ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠ΅ с использованиСм антисСптичСского ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚Π° лавасСпт. ΠœΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π» ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹. ΠŸΡ€Π΅Π΄ΡΡ‚Π°Π²Π»Π΅Π½ морфологичСский/ΡƒΠ»ΡŒΡ‚Ρ€Π°ΡΡ‚Ρ€ΡƒΠΊΡ‚ΡƒΡ€Π½Ρ‹ΠΉ Π°Π½Π°Π»ΠΈΠ· Π±ΠΈΠΎΠΏΡ‚Π°Ρ‚ΠΎΠ² Ρ€Π°Π½ 90 ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² (75 Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… основной Π³Ρ€ΡƒΠΏΠΏΡ‹, 15 - Π³Ρ€ΡƒΠΏΠΏΡ‹ сравнСния) Π² возрастС ΠΎΡ‚ 27 Π΄ΠΎ 80 Π»Π΅Ρ‚ (срСдний возраст Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… 58,4Β±8,2 Π³ΠΎΠ΄Π°) с Π‘Π”Π‘ Π² стадии ГН-ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠΉ, госпитализированных Π² ΠΎΡ‚Π΄Π΅Π» Ρ€Π°Π½ ΠΈ Ρ€Π°Π½Π΅Π²Ρ‹Ρ… ΠΈΠ½Ρ„Π΅ΠΊΡ†ΠΈΠΉ Π˜Π½ΡΡ‚ΠΈΡ‚ΡƒΡ‚Π° Ρ…ΠΈΡ€ΡƒΡ€Π³ΠΈΠΈ ΠΈΠΌ. А.Π’. Π’ΠΈΡˆΠ½Π΅Π²ΡΠΊΠΎΠ³ΠΎ Π² 2013-2016 Π³Π³. Π£ всСх ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² сахарный Π΄ΠΈΠ°Π±Π΅Ρ‚ 2-Π³ΠΎ Ρ‚ΠΈΠΏΠ°. ОбъСм пораТСния Ρ‚ΠΊΠ°Π½Π΅ΠΉ стопы ΠΎΡ†Π΅Π½ΠΈΠ²Π°Π»ΠΈ ΠΏΠΎ классификации F. Wagner (1981). Π£ 46 (51,1%) Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… процСсс Π±Ρ‹Π» Π² стадии Wagner III-IV, Ρƒ 44 (48,9 %) - Π² стадии Wagner II. КомплСксноС Π»Π΅Ρ‡Π΅Π½ΠΈΠ΅ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² Π²ΠΊΠ»ΡŽΡ‡Π°Π»ΠΎ Ρ€Π°Π΄ΠΈΠΊΠ°Π»ΡŒΠ½ΡƒΡŽ Ρ…ΠΈΡ€ΡƒΡ€Π³ΠΈΡ‡Π΅ΡΠΊΡƒΡŽ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΡƒ Π³Π½ΠΎΠΉΠ½ΠΎΠ³ΠΎ ΠΎΡ‡Π°Π³Π°, Ρ…ΠΈΡ€ΡƒΡ€Π³ΠΈΡ‡Π΅ΡΠΊΡƒΡŽ Ρ€Π΅Π²Π°ΡΠΊΡƒΠ»ΡΡ€ΠΈΠ·Π°Ρ†ΠΈΡŽ (ΠΏΠΎ показаниям) ΠΈ ΠΏΠ»Π°ΡΡ‚ΠΈΡ‡Π΅ΡΠΊΡƒΡŽ Ρ€Π΅ΠΊΠΎΠ½ΡΡ‚Ρ€ΡƒΠΊΡ†ΠΈΡŽ стопы, ΠΊΠΎΡ€Ρ€Π΅ΠΊΡ†ΠΈΡŽ ΡƒΠ³Π»Π΅Π²ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΠΎΠ±ΠΌΠ΅Π½Π° ΠΈ ΡΠΎΠΏΡƒΡ‚ΡΡ‚Π²ΡƒΡŽΡ‰ΠΈΡ… Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ. ΠœΠ΅ΡΡ‚Π½ΠΎΠ΅ Π»Π΅Ρ‡Π΅Π½ΠΈΠ΅ Ρ€Π°Π½ ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈ ΠΏΠΎΠ΄ повязками с 1% раствором ΠΉΠΎΠ΄ΠΎΠΏΠΈΡ€ΠΎΠ½Π°. Π’ основной Π³Ρ€ΡƒΠΏΠΏΠ΅ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… мСстноС Π»Π΅Ρ‡Π΅Π½ΠΈΠ΅ дополняли ΡƒΠ»ΡŒΡ‚Ρ€Π°Π·Π²ΡƒΠΊΠΎΠ²ΠΎΠΉ ΠΊΠ°Π²ΠΈΡ‚Π°Ρ†ΠΈΠ΅ΠΉ Ρ€Π°Π½. Для ΠΎΡ†Π΅Π½ΠΊΠΈ эффСктивности ΡƒΠ»ΡŒΡ‚Ρ€Π°Π·Π²ΡƒΠΊΠΎΠ²ΠΎΠΉ ΠΊΠ°Π²ΠΈΡ‚Π°Ρ†ΠΈΠΈ ΠΏΡ€ΠΈ Π»Π΅Ρ‡Π΅Π½ΠΈΠΈ ГН ослоТнСний Π‘Π”Π‘ с Π±ΠΈΠΎΠΏΠ»Π΅Π½ΠΎΡ‡Π½Ρ‹ΠΌΠΈ Ρ„ΠΎΡ€ΠΌΠ°ΠΌΠΈ Π±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠΉ ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΎΡΡŒ элСктронно-микроскопичСскоС исслСдованиС Π±ΠΈΠΎΠΏΡ‚Π°Ρ‚ΠΎΠ² Π΄ΠΎ лСчСния, Π½Π° 3-5-Π΅ ΠΈ 7-10-Π΅ сутки лСчСния. Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹. Π£Π—Πš с 0,2% раствором лавасСпта эффСктивно ΠΎΡ‡ΠΈΡ‰Π°Π΅Ρ‚ Ρ€Π°Π½Ρ‹ ΠΎΡ‚ ΠΌΠΈΠΊΡ€ΠΎΠ±Π½ΠΎΠ³ΠΎ ΠΈ ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½ΠΎΠ³ΠΎ Π΄Π΅Ρ‚Ρ€ΠΈΡ‚Π°, Ρ€Π°Π·Ρ€ΡƒΡˆΠ°Π΅Ρ‚ ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½Ρ‹Π΅ ΠΌΠ΅ΠΌΠ±Ρ€Π°Π½Ρ‹ ΠΌΠΈΠΊΡ€ΠΎΠΎΡ€Π³Π°Π½ΠΈΠ·ΠΌΠΎΠ² ΠΈ Π±ΠΈΠΎΠΏΠ»Π΅Π½ΠΊΠΈ с ΠΌΠΈΠΊΡ€ΠΎΠΎΡ€Π³Π°Π½ΠΈΠ·ΠΌΠ°ΠΌΠΈ, прСдотвращая ΠΈΡ… ΠΏΠΎΠ²Ρ‚ΠΎΡ€Π½ΠΎΠ΅ ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΈ Ρ€Π΅ΠΈΠ½Ρ„ΠΈΡ†ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ Ρ€Π°Π½, Ρ‡Ρ‚ΠΎ способствуСт Π±ΠΎΠ»Π΅Π΅ быстрому ΠΏΠ΅Ρ€Π΅Ρ…ΠΎΠ΄Ρƒ Π²ΠΎΡΠΏΠ°Π»ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ Ρ„Π°Π·Ρ‹ Ρ€Π°Π½Π΅Π²ΠΎΠ³ΠΎ процСсса Π² Ρ€Π΅ΠΏΠ°Ρ€Π°Ρ‚ΠΈΠ²Π½ΡƒΡŽ ΠΈ позволяСт Π² Π±ΠΎΠ»Π΅Π΅ Ρ€Π°Π½Π½ΠΈΠ΅ сроки ΡƒΡΠΏΠ΅ΡˆΠ½ΠΎ ΠΏΡ€ΠΎΠΈΠ·Π²ΠΎΠ΄ΠΈΡ‚ΡŒ ΠΏΠ»Π°ΡΡ‚ΠΈΡ‡Π΅ΡΠΊΡƒΡŽ Ρ€Π΅ΠΊΠΎΠ½ΡΡ‚Ρ€ΡƒΠΊΡ†ΠΈΡŽ стопы

    Application evaluation of a polydimethylsiloxane low-viscosity for cryopreservation and radiation sterilization of human cadaveric vascular allografts.

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    Aim: to investigate potential cryo- and radioprotective properties of a polydimethylsiloxane of low viscosity to provide safe and reliable cryopreservation and radiation sterilization of human cadaveric vascular allografts. Material and methods. A consecutive experimental set-up was carried out to establish polydimethylsiloxane (further β€” PDMS) protective endocellular properties. For this purpose a high-densitymesenchymal stem cells suspension was cryopreserved with 10% DMSO solution; PDMS exocellular protective properties were assessed by cyclic cryoconservation of ^femoral artery segments, while PDMS potential radioprotectiveproperties were assessed by gamma irradiation β€” induced sterilization of 3 cryopreserved femoral artery segments with gross length about 3cm, and for control grafts a slightly changed protocol with glycerin was used. In this study the dynamic viscosity of all cryopreserved vessels was analyzed with using specially designed experimental device, also electron scanning microscopy with lanthanide cells staining and routine hematoxylin β€” eosin cell staining were applied. Results. We have demonstrated a prominentexocellular protective effect of PDMS confirmed by a SEM and histological results, and also its mediated radioprotective effect, in particular because of its safer preliminary cryopreservation procedure. Conclusion. Use of PDMS for a cryopreservation and gamma sterilization showed its rationality, however requires further modification of protocols and additional researches.</p

    A novel comprehensive approach for human vascular allografts cryopreservation and radiation sterilization for the tissue engineering industry

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    Aim: to verify new techniques for human cadaveric vascular allografts cryopreservation, thawing and sterilization for the tissue engineering purposes. We use polydimethylsiloxane (PDMS) as a well-known, promising coolant. This allowed us to completely omit any cryoprotective or vitrifying solutions. Using of PDMS also makes possible an applying these allografts directly after freezing and decellularization and also it will also provide an opportunity to develop secure protocols of tissueβ€” engineered vascular conduits cryopreservation. Matherial and methods. After mathematical modeling of cooling process and its validation the experiment for sealed (isolated) freezing at low temperature conditions of 30 femoral arterial segments has been conducted. The segments were at least 10 cm in length and taken from 15 cadaveric donors in the age of 65-85 years. The freezing process was carried out using the abovementioned coolantβ€” PDMS, and then physico-mechanical properties of these allografts were evaluated with the special Instron machine. According to the results obtained, a modeling of their sterilization conditions was conducted (the grafts were freezed). Results. By physico-mechanical properties validation and restricted histological analysis it was shown that there was an accordance between freezed/thawed allografts properties and native vessels. Conclusion. The abovementioned approach for allografts cryopreservation and thawing was efficient enough for further work in this direction
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