2,128 research outputs found
Specific heat and magnetocaloric effect in Pr1-xAgxMnO3 manganites
The magnetocaloric effect in alternating magnetic fields has been
investigated in Pr1-xAgxMnO3 manganites with x=0.05-0.25. The stepwise reversal
of the sign of the magnetocaloric effect has been revealed in a weakly doped
sample (x=0.05) at low temperatures (~80 K). This reversal is attributed to the
coexistence of the ferromagnetic and canted antiferromagnetic phases with
different critical temperatures.Comment: 4 pages, 4 figure
Argon plasma coagulation in coloproctology: clinical experience with and prospects for the technique
Background. Rectal laterally spreading tumors (LSTs) are macroscopically divided into granular (LST-G) and non-granular (LST-NG).Β LST-Gs have in turn two types: homogeneous and nodular mixed.Subjects and methods. The retrospective study analyzed the data of 20 patients (11 men and 9 women) in whom homogenous LSTs wereΒ removed by argon plasma coagulation (APC). The patientsΒ» mean age was 65.8 Β± 6 years. Therapeutic effectiveness was evaluated by Ki-67Β proliferation index and the frequency of complications and recurrences.Results. The average size of removed homogeneous LST-Gs was 12.3 Β± 3.8 cm2. The average number of APC sessions to achieve a LST-GΒ reduction was 4.4 Β± 0.9. Three days before APC, Ki-67 in the neoplasia biopsy specimens amounted to as much as 67.8 Β± 4.4 % on average;Β it reduced to an average of 33.0 Β± 3.0 % at 14 days of APC initiation, 16.5 Β± 1.8 and 4.2 Β± 0.4 % after 21 and 180 days, respectively.Discussion. Inability to receive complete histological data on removed LST-Gs is a main pitfall in APC.Conclusion. Stepwise tumor APC may be the method of choice in elderly and senile patients with a family history of comorbidity. APCΒ can precisely remove LSTs along the boundary of the dentate line. This technique requires no single-use tools
Social function of taxes as a toolkit for income differentiation reduction among population of the depressed republics of the North Caucasus Federal District
In the conditions of a difficult political situation, economic uncertainty and increasing unemployment in the land-poor manpower-surplus, depressive republics of the North Caucasus Federal District, the need to implement the entrepreneurial opportunities of the population is clearly manifested. It seems that small business can manifest itself in these conditions as a separate element of the economy decentralized sector. Of course, the success of small business in a depressed region depends on the state position to a large extent. And this is natural, because only the state is capable of creating the necessary conditions in market relations and various preference provision for the development of entrepreneurship, especially in the mountainous territories of the country.It should be noted that the next economic crisis and pandemic (coronavirus) not only led to the depletion of the state budget, but also collapsed the production activity of small diversified enterprises in the region. Most of the entrepreneurs of the North Caucasus Federal District declare that they are not able to independently solve the complex of this phenomenon negative consequences
Critical sound attenuation in a diluted Ising system
The field-theoretic description of dynamical critical effects of the
influence of disorder on acoustic anomalies near the temperature of the
second-order phase transition is considered for three-dimensional Ising-like
systems. Calculations of the sound attenuation in pure and dilute Ising-like
systems near the critical point are presented. The dynamical scaling function
for the critical attenuation coefficient is calculated. The influence of
quenched disorder on the asymptotic behaviour of the critical ultrasonic
anomalies is discussed.Comment: 12 RevTeX pages, 4 figure
ΠΡΠ³ΠΎΠ½ΠΎΠΏΠ»Π°Π·ΠΌΠ΅Π½Π½Π°Ρ ΠΊΠΎΠ°Π³ΡΠ»ΡΡΠΈΡ Π² ΠΊΠΎΠ»ΠΎΠΏΡΠΎΠΊΡΠΎΠ»ΠΎΠ³ΠΈΠΈ: ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΈΠΉ ΠΎΠΏΡΡ ΠΈ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Ρ ΠΌΠ΅ΡΠΎΠ΄Π°
Background. Rectal laterally spreading tumors (LSTs) are macroscopically divided into granular (LST-G) and non-granular (LST-NG).Β LST-Gs have in turn two types: homogeneous and nodular mixed.Subjects and methods. The retrospective study analyzed the data of 20 patients (11 men and 9 women) in whom homogenous LSTs wereΒ removed by argon plasma coagulation (APC). The patientsΒ» mean age was 65.8 Β± 6 years. Therapeutic effectiveness was evaluated by Ki-67Β proliferation index and the frequency of complications and recurrences.Results. The average size of removed homogeneous LST-Gs was 12.3 Β± 3.8 cm2. The average number of APC sessions to achieve a LST-GΒ reduction was 4.4 Β± 0.9. Three days before APC, Ki-67 in the neoplasia biopsy specimens amounted to as much as 67.8 Β± 4.4 % on average;Β it reduced to an average of 33.0 Β± 3.0 % at 14 days of APC initiation, 16.5 Β± 1.8 and 4.2 Β± 0.4 % after 21 and 180 days, respectively.Discussion. Inability to receive complete histological data on removed LST-Gs is a main pitfall in APC.Conclusion. Stepwise tumor APC may be the method of choice in elderly and senile patients with a family history of comorbidity. APCΒ can precisely remove LSTs along the boundary of the dentate line. This technique requires no single-use tools.ΠΠ²Π΅Π΄Π΅Π½ΠΈΠ΅. ΠΠΎΡΠΈΠ·ΠΎΠ½ΡΠ°Π»ΡΠ½ΠΎ ΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½ΡΡΡΠΈΠ΅ΡΡ ΡΡΠ΅Π»ΡΡΠΈΠ΅ΡΡ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ (laterally spreading tumor, LST) ΠΏΡΡΠΌΠΎΠΉ ΠΊΠΈΡΠΊΠΈ ΠΌΠ°ΠΊΡΠΎΡΠΊΠΎΠΏΠΈΡΠ΅ΡΠΊΠΈ ΠΏΠΎΠ΄ΡΠ°Π·Π΄Π΅Π»ΡΡΡΡΡ Π½Π° Π³ΡΠ°Π½ΡΠ»ΠΈΡΠΎΠ²Π°Π½Π½ΡΠ΅ (LST granular, LST-G) ΠΈ Π½Π΅Π³ΡΠ°Π½ΡΠ»ΠΈΡΠΎΠ²Π°Π½Π½ΡΠ΅ (LST non-granular, LST-NG). LST-G,Β Π² ΡΠ²ΠΎΡ ΠΎΡΠ΅ΡΠ΅Π΄Ρ, Π±ΡΠ²Π°ΡΡ 2 ΡΠΈΠΏΠΎΠ²: ΠΎΠ΄Π½ΠΎΡΠΎΠ΄Π½ΡΠ΅ (homogeneous type) ΠΈ ΠΎΠ΄Π½ΠΎΡΠΎΠ΄Π½ΡΠ΅ Ρ ΡΠ·Π»Π°ΠΌΠΈ (nodular mixed type).ΠΠ°ΡΠ΅ΡΠΈΠ°Π»Ρ ΠΈ ΠΌΠ΅ΡΠΎΠ΄Ρ. ΠΡΠΏΠΎΠ»Π½Π΅Π½ΠΎ ΡΠ΅ΡΡΠΎΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΠΎΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π΄Π°Π½Π½ΡΡ
20 ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² (11 ΠΌΡΠΆΡΠΈΠ½ ΠΈ 9 ΠΆΠ΅Π½ΡΠΈΠ½), ΠΊΠΎΡΠΎΡΡΠΌΒ Π·Π° ΠΏΠ΅ΡΠΈΠΎΠ΄ Ρ 2006 ΠΏΠΎ 2011 Π³. ΡΠ΄Π°Π»ΠΈΠ»ΠΈ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ Π°ΡΠ³ΠΎΠ½ΠΎΠΏΠ»Π°Π·ΠΌΠ΅Π½Π½ΠΎΠΉ ΠΊΠΎΠ°Π³ΡΠ»ΡΡΠΈΠΈ (ΠΠΠ, argon plasma coagulation) LST-G ΠΎΠ΄Π½ΠΎΡΠΎΠ΄Π½ΠΎΠ³ΠΎΒ ΡΠΈΠΏΠ°. Π‘ΡΠ΅Π΄Π½ΠΈΠΉ Π²ΠΎΠ·ΡΠ°ΡΡ Π±ΠΎΠ»ΡΠ½ΡΡ
ΡΠΎΡΡΠ°Π²ΠΈΠ» 65,8 Β± 6 Π»Π΅Ρ. ΠΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ Π»Π΅ΡΠ΅Π½ΠΈΡ ΠΎΡΠ΅Π½ΠΈΠ²Π°Π»ΠΈ ΠΏΠΎ ΠΈΠ½Π΄Π΅ΠΊΡΡ ΠΏΡΠΎΠ»ΠΈΡΠ΅ΡΠ°ΡΠΈΠΈ Ki-67, ΡΠ°ΡΡΠΎΡΠ΅ ΠΎΡΠ»ΠΎΠΆΠ½Π΅Π½ΠΈΠΉ ΠΈ ΡΠ΅ΡΠΈΠ΄ΠΈΠ²ΠΎΠ².Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. Π‘ΡΠ΅Π΄Π½ΠΈΠΉ ΡΠ°Π·ΠΌΠ΅Ρ ΡΠ΄Π°Π»Π΅Π½Π½ΡΡ
LST-G ΠΎΠ΄Π½ΠΎΡΠΎΠ΄Π½ΠΎΠ³ΠΎ ΡΠΈΠΏΠ° Π±ΡΠ» 12,3 Β± 3,8 ΡΠΌ2. Π‘ΡΠ΅Π΄Π½Π΅Π΅ ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²ΠΎ ΡΡΠ°ΠΏΠΎΠ² ΠΠΠ Π΄Π»Ρ Π΄ΠΎΡΡΠΈΠΆΠ΅Π½ΠΈΡ ΡΠ΅Π΄ΡΠΊΡΠΈΠΈ Π½Π΅ΠΎΠΏΠ»Π°Π·ΠΈΠΈ ΡΠΈΠΏΠ° LST-G ΡΠΎΡΡΠ°Π²ΠΈΠ»ΠΎ 4,4 Β± 0,9. ΠΠ½Π΄Π΅ΠΊΡ ΠΏΡΠΎΠ»ΠΈΡΠ΅ΡΠ°ΡΠΈΠΈ Ki-67 Π² Π±ΠΈΠΎΠΏΡΠ°ΡΠ°Ρ
Π½Π΅ΠΎΠΏΠ»Π°Π·ΠΈΠΉ Π·Π° 3 ΡΡΡ Π΄ΠΎ ΠΠΠΒ Π΄ΠΎΡΡΠΈΠ³Π°Π» Π² ΡΡΠ΅Π΄Π½Π΅ΠΌ 67,8 Β± 4,4 %, Π½Π° 14-Π΅ ΡΡΡΠΊΠΈ ΠΏΠΎΡΠ»Π΅ Π½Π°ΡΠ°Π»Π° ΠΠΠ ΡΠ½ΠΈΠΆΠ°Π»ΡΡ Π² ΡΡΠ΅Π΄Π½Π΅ΠΌ Π΄ΠΎ 33,0 Β± 3,0 %, ΡΠ΅ΡΠ΅Π· 21 ΡΡΡ β Π΄ΠΎ 16,5 Β±Β 1,8 %, ΡΠ΅ΡΠ΅Π· 180 ΡΡΡ β Π΄ΠΎ 4,2 Β± 0,4 %.ΠΠ±ΡΡΠΆΠ΄Π΅Π½ΠΈΠ΅. ΠΡΠ½ΠΎΠ²Π½ΡΠΌ Π½Π΅Π΄ΠΎΡΡΠ°ΡΠΊΠΎΠΌ ΠΠΠ ΡΠ²Π»ΡΠ΅ΡΡΡ Π½Π΅Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ ΠΏΠΎΠ»Π½ΠΎΠΉ Π³ΠΈΡΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠΈ ΡΠ΄Π°Π»Π΅Π½Π½ΡΡ
Β LST-G.ΠΠ°ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅. ΠΡΠ°ΠΏΠ½Π°Ρ ΠΠΠ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΠΉ ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ Π²ΡΠ±ΠΎΡΠ° Ρ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² ΠΏΠΎΠΆΠΈΠ»ΠΎΠ³ΠΎ ΠΈ ΡΡΠ°ΡΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π²ΠΎΠ·ΡΠ°ΡΡΠ° Ρ Π½Π°Π»ΠΈΡΠΈΠ΅ΠΌ ΠΎΡΡΠ³ΠΎΡΠ°ΡΡΠ΅ΠΉ ΡΠΎΠΏΡΡΡΡΠ²ΡΡΡΠ΅ΠΉ ΠΏΠ°ΡΠΎΠ»ΠΎΠ³ΠΈΠΈ. ΠΠΠ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΠΏΡΠ΅ΡΠΈΠ·ΠΈΠΎΠ½Π½ΠΎ ΡΠ΄Π°Π»ΡΡΡ LST, ΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½ΡΡΡΠΈΠ΅ΡΡ ΠΏΠΎ Π³ΡΠ°Π½ΠΈΡΠ΅ Π·ΡΠ±ΡΠ°ΡΠΎΠΉ Π»ΠΈΠ½ΠΈΠΈ. ΠΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΠΌΠ΅ΡΠΎΠ΄Π° Π½Π΅ ΡΡΠ΅Π±ΡΠ΅Ρ ΠΏΡΠΈΠΎΠ±ΡΠ΅ΡΠ΅Π½ΠΈΡ ΠΎΠ΄Π½ΠΎΡΠ°Π·ΠΎΠ²ΡΡ
ΠΈΠ½ΡΡΡΡΠΌΠ΅Π½ΡΠΎΠ²
Compression method of anastomosis of large intestines by implants with memory of shape: alternative to traditional sutures
Research objective. To prove experimentally the possibility of forming a compression colonic anastomoses using nickel-titanium devices in comparison with traditional methods of anastomosis. Materials and methods. In experimental studies the quality of the compression anastomosis of the colon in comparison with sutured and stapled anastomoses was performed. There were three experimental groups in mongrel dogs formed: in the 1st series (n = 30) compression anastomoses nickel-titanium implants were formed; in the 2nd (n = 25) β circular stapling anastomoses; in the 3rd (n = 25) β ligature way to Mateshukβ Lambert. In the experiment the physical durability, elasticity, and biological tightness, morphogenesis colonic anastomoses were studied. Results. Optimal sizes of compression devices are 32 Γ 18 and 28 Γ 15 mm with a wire diameter of 2.2 mm, the force of winding compression was 740 Β± 180 g/mm2. Compression suture has a higher physical durability compared to stapled (W = β33.0; p < 0.05) and sutured (W = β28.0; p < 0.05), higher elasticity (p < 0.05) in all terms of tests and biological tightness since 3 days (p < 0.001) after surgery. The regularities of morphogenesis colonic anastomoses allocated by 4 periods of the regeneration of intestinal suture.Β Conclusion. Obtained experimental data of the use of compression anastomosis of the colon by the nickel-titanium devices are the convincing arguments for their clinical application
Morphotropic Phase Boundary Enhanced Photocatalysis in Sm Doped BiFeO3
This paper presents the results of the synthesis of samarium-doped bismuth ferrite (BFO) nanoparticles by the solution combustion method. The dependence of BFO properties on the amount of the samarium (Sm) in the composition was studied. The synthesized nanocomposites were characterized by scanning electron microscopy SEM), X-ray diffractometry (XRD), Raman, Electron Diffuse Reflectance Spectroscopy (EDRS) and Electron Magnetic Resonance (EMR). The photocatalytic (PC) measurements showed the absence of a strict correlation between the PC activity and the crystallite size and band gap. An increase in the PC activity of BFO samples with 10 and 15% doping was observed and it was concluded that in controlling the PC properties in doped BFO, the processes of interfacial polarization at the boundaries of the morphotropic phase transition are of decisive importance. It was supposed that the internal electric field formed at these boundaries contributes to the efficient separation of photogenerated charge carriers
Π ΠΎΠ»Ρ ΠΊΠΎΠ½ΡΠ΅ΡΠ²Π°ΡΠΈΠ²Π½ΠΎΠΉ ΡΠ΅ΡΠ°ΠΏΠΈΠΈ Π² Π»Π΅ΡΠ΅Π½ΠΈΠΈ ΠΎΡΠ»ΠΎΠΆΠ½Π΅Π½Π½ΠΎΠ³ΠΎ ΠΊΠΎΠ»ΠΎΡΠ΅ΠΊΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΡΠ°ΠΊΠ°
Objective: to evaluate the possibilities of conservative treatment of patients with complications of colorectal cancer.Materials and methods. The study included the results of treatment of 105 patients with complications of colorectal cancer treated on the basis of the District Clinical Hospital of Surgut for the period 2012β2017. Of these, 86 (81.9 %) patients with acute obstructive intestinal obstruction, 11 (10.5 %) patients with bleeding from colon tumors, and 8 (7.6 %) patients with purulent-septic complications of colon cancer.Results. The complex of conservative measures, including colon stenting, provides restoration of the passage through the digestive tract in 79.1 % of patients, which allows preparing the patient to perform surgery, thereby reducing the risk of complications. Twenty-eight (27.6 %) patients were operated on an emergency basis: due to the lack of effect from conservative therapy for acute intestinal obstruction β 18 (17.1 %) patients, due to peritonitis β 8 (7.6 %), due to recurrent colonic bleeding β 3 (2.9 %) patients. The death rate was 13.8 % (n = 4). In the delayed order after successful conservative therapy, 70 (66.7 %) patients underwent surgical treatment in the surgical and oncology departments. Postoperative mortality was 1.4 % (n = 1).Conclusion. The complex of conservative measures, which allows avoiding emergency surgical intervention at the urgent stage of treatment, is the basis for carrying out a full-fledged surgical intervention in a delayed procedure in a specialized hospital, observing the principles of oncological radicalism.Π¦Π΅Π»Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ β ΠΎΡΠ΅Π½ΠΊΠ° Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ ΠΊΠΎΠ½ΡΠ΅ΡΠ²Π°ΡΠΈΠ²Π½ΠΎΠ³ΠΎ Π»Π΅ΡΠ΅Π½ΠΈΡ Π±ΠΎΠ»ΡΠ½ΡΡ
Ρ ΠΎΡΠ»ΠΎΠΆΠ½Π΅Π½ΠΈΡΠΌΠΈ ΠΊΠΎΠ»ΠΎΡΠ΅ΠΊΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΡΠ°ΠΊΠ°. ΠΠ°ΡΠ΅ΡΠΈΠ°Π»Ρ ΠΈ ΠΌΠ΅ΡΠΎΠ΄Ρ. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΎΠ±ΠΎΠ±ΡΠ°Π΅Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ Π»Π΅ΡΠ΅Π½ΠΈΡ 105 Π±ΠΎΠ»ΡΠ½ΡΡ
Ρ ΠΎΡΠ»ΠΎΠΆΠ½Π΅Π½ΠΈΡΠΌΠΈ ΠΊΠΎΠ»ΠΎΡΠ΅ΠΊΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΡΠ°ΠΊΠ°, ΠΏΡΠΎΠ»Π΅ΡΠ΅Π½Π½ΡΡ
Π½Π° Π±Π°Π·Π΅ ΠΠΊΡΡΠΆΠ½ΠΎΠΉ ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π±ΠΎΠ»ΡΠ½ΠΈΡΡ Π³. Π‘ΡΡΠ³ΡΡΠ° Π·Π° ΠΏΠ΅ΡΠΈΠΎΠ΄ 2012β2017 Π³Π³. Π ΠΈΡ
ΡΠΈΡΠ»Π΅ 86 (81,9 %) ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² Ρ ΠΎΡΡΡΠΎΠΉ ΠΎΠ±ΡΡΡΠ°ΡΠΈΠΎΠ½Π½ΠΎΠΉ ΠΊΠΈΡΠ΅ΡΠ½ΠΎΠΉ Π½Π΅ΠΏΡΠΎΡ
ΠΎΠ΄ΠΈΠΌΠΎΡΡΡΡ, 11 (10,5 %) β Ρ ΠΊΡΠΎΠ²ΠΎΡΠ΅ΡΠ΅Π½ΠΈΠ΅ΠΌ ΠΈΠ· ΠΎΠΏΡΡ
ΠΎΠ»ΠΈ ΡΠΎΠ»ΡΡΠΎΠΉ ΠΊΠΈΡΠΊΠΈ, 8 (7,6 %) β Ρ Π³Π½ΠΎΠΉΠ½ΠΎ-ΡΠ΅ΠΏΡΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΠΎΡΠ»ΠΎΠΆΠ½Π΅Π½ΠΈΡΠΌΠΈ ΡΠ°ΠΊΠ° ΡΠΎΠ»ΡΡΠΎΠΉ ΠΊΠΈΡΠΊΠΈ.Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. ΠΠΎΠΌΠΏΠ»Π΅ΠΊΡ ΠΊΠΎΠ½ΡΠ΅ΡΠ²Π°ΡΠΈΠ²Π½ΡΡ
ΠΌΠ΅ΡΠΎΠΏΡΠΈΡΡΠΈΠΉ, Π²ΠΊΠ»ΡΡΠ°ΡΡΠΈΡ
ΡΡΠ΅Π½ΡΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ ΡΠΎΠ»ΡΡΠΎΠΉ ΠΊΠΈΡΠΊΠΈ, ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ» Π²ΠΎΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΈΠ΅ ΠΏΠ°ΡΡΠ°ΠΆΠ° ΠΏΠΎ ΠΏΠΈΡΠ΅Π²Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠΌΡ ΡΡΠ°ΠΊΡΡ Ρ 79,1 % ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ², ΡΡΠΎ ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΠ»ΠΎ ΠΏΠΎΠ΄Π³ΠΎΡΠΎΠ²ΠΈΡΡ ΠΈΡ
ΠΊ Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΈΡ Ρ
ΠΈΡΡΡΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π²ΠΌΠ΅ΡΠ°ΡΠ΅Π»ΡΡΡΠ²Π°, ΡΠ΅ΠΌ ΡΠ°ΠΌΡΠΌ ΡΠΌΠ΅Π½ΡΡΠΈΠ² ΡΠΈΡΠΊ ΡΠ°Π·Π²ΠΈΡΠΈΡ ΠΎΡΠ»ΠΎΠΆΠ½Π΅Π½ΠΈΠΉ. Π ΡΠΊΡΡΡΠ΅Π½Π½ΠΎΠΌ ΠΏΠΎΡΡΠ΄ΠΊΠ΅ Π±ΡΠ»ΠΈ ΠΎΠΏΠ΅ΡΠΈΡΠΎΠ²Π°Π½Ρ 29 (27,6 %) ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ²: Π² ΡΠ²ΡΠ·ΠΈ Ρ ΠΎΡΡΡΡΡΡΠ²ΠΈΠ΅ΠΌ ΡΡΡΠ΅ΠΊΡΠ° ΠΎΡ ΠΊΠΎΠ½ΡΠ΅ΡΠ²Π°ΡΠΈΠ²Π½ΠΎΠΉ ΡΠ΅ΡΠ°ΠΏΠΈΠΈ ΠΏΡΠΈ ΠΎΡΡΡΠΎΠΉ ΠΊΠΈΡΠ΅ΡΠ½ΠΎΠΉ Π½Π΅ΠΏΡΠΎΡ
ΠΎΠ΄ΠΈΠΌΠΎΡΡΠΈ β 18 (17,1 %), Π² ΡΠ²ΡΠ·ΠΈ Ρ ΠΏΠ΅ΡΠΈΡΠΎΠ½ΠΈΡΠΎΠΌ β 8 (7,6 %), Π² ΡΠ²ΡΠ·ΠΈ Ρ ΡΠ΅ΡΠΈΠ΄ΠΈΠ²ΠΎΠΌ ΡΠΎΠ»ΡΡΠΎΠΊΠΈΡΠ΅ΡΠ½ΠΎΠ³ΠΎ ΠΊΡΠΎΠ²ΠΎΡΠ΅ΡΠ΅Π½ΠΈΡ β 3 (2,9 %). Π§Π°ΡΡΠΎΡΠ° Π»Π΅ΡΠ°Π»ΡΠ½ΡΡ
ΠΈΡΡ
ΠΎΠ΄ΠΎΠ² ΡΠΎΡΡΠ°Π²ΠΈΠ»Π° 13,8 % (ΠΏ = 4). Π ΠΎΡΡΡΠΎΡΠ΅Π½Π½ΠΎΠΌ ΠΏΠΎΡΡΠ΄ΠΊΠ΅ ΠΏΠΎΡΠ»Π΅ ΡΡΠΏΠ΅ΡΠ½ΠΎΠΉ ΠΊΠΎΠ½ΡΠ΅ΡΠ²Π°ΡΠΈΠ²Π½ΠΎΠΉ ΡΠ΅ΡΠ°ΠΏΠΈΠΈ 70 (66,7 %) Π±ΠΎΠ»ΡΠ½ΡΡ
ΠΏΠΎΠ΄Π²Π΅ΡΠ³Π½ΡΡΡ Ρ
ΠΈΡΡΡΠ³ΠΈΡΠ΅ΡΠΊΠΎΠΌΡ Π»Π΅ΡΠ΅Π½ΠΈΡ Π² ΡΡΠ»ΠΎΠ²ΠΈΡΡ
Ρ
ΠΈΡΡΡΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΈ ΠΎΠ½ΠΊΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΎΡΠ΄Π΅Π»Π΅Π½ΠΈΠΉ. ΠΠΎΡΠ»Π΅ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΎΠ½Π½Π°Ρ Π»Π΅ΡΠ°Π»ΡΠ½ΠΎΡΡΡ ΡΠΎΡΡΠ°Π²ΠΈΠ»Π° 1,4% (ΠΏ = 1).ΠΡΠ²ΠΎΠ΄Ρ. ΠΠΎΠΌΠΏΠ»Π΅ΠΊΡ ΠΊΠΎΠ½ΡΠ΅ΡΠ²Π°ΡΠΈΠ²Π½ΡΡ
ΠΌΠ΅ΡΠΎΠΏΡΠΈΡΡΠΈΠΉ, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡΡΠΈΠΉ ΠΈΠ·Π±Π΅ΠΆΠ°ΡΡ ΡΠΊΡΡΡΠ΅Π½Π½ΠΎΠ³ΠΎ Ρ
ΠΈΡΡΡΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π²ΠΌΠ΅ΡΠ°ΡΠ΅Π»ΡΡΡΠ²Π° Π½Π° ΡΡΠ³Π΅Π½ΡΠ½ΠΎΠΌ ΡΡΠ°ΠΏΠ΅ Π»Π΅ΡΠ΅Π½ΠΈΡ, ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°Π΅Ρ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΡ ΠΏΠΎΠ»Π½ΠΎΡΠ΅Π½Π½ΠΎΠ³ΠΎ Ρ
ΠΈΡΡΡΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π²ΠΌΠ΅ΡΠ°ΡΠ΅Π»ΡΡΡΠ²Π° Π² ΠΎΡΡΡΠΎΡΠ΅Π½Π½ΠΎΠΌ ΠΏΠΎΡΡΠ΄ΠΊΠ΅ Π² ΡΠΏΠ΅ΡΠΈΠ°Π»ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΌ ΡΡΠ°ΡΠΈΠΎΠ½Π°ΡΠ΅ Ρ ΡΠΎΠ±Π»ΡΠ΄Π΅Π½ΠΈΠ΅ΠΌ ΠΏΡΠΈΠ½ΡΠΈΠΏΠΎΠ² ΠΎΠ½ΠΊΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π΄ΠΈΠΊΠ°Π»ΠΈΠ·ΠΌΠ°
ΠΠΎΠΌΠΏΡΠ΅ΡΡΠΈΠΎΠ½Π½ΡΠΈΜ ΡΠΏΠΎΡΠΎΠ± Π°Π½Π°ΡΡΠΎΠΌΠΎΠ·ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΠΎΠ»ΡΡΠΎΠΈΜ ΠΊΠΈΡΠΊΠΈ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠ°ΠΌΠΈ Ρ ΠΏΠ°ΠΌΡΡΡΡ ΡΠΎΡΠΌΡ - Π°Π»ΡΡΠ΅ΡΠ½Π°ΡΠΈΠ²Π° ΡΡΠ°Π΄ΠΈΡΠΈΠΎΠ½Π½ΡΠΌ ΡΠ²Π°ΠΌ
Research objective. To prove experimentally the possibility of forming a compression colonic anastomoses using nickel-titanium devices in comparison with traditional methods of anastomosis. Materials and methods. In experimental studies the quality of the compression anastomosis of the colon in comparison with sutured and stapled anastomoses was performed. There were three experimental groups in mongrel dogs formed: in the 1st series (n = 30) compression anastomoses nickel-titanium implants were formed; in the 2nd (n = 25) β circular stapling anastomoses; in the 3rd (n = 25) β ligature way to Mateshukβ Lambert. In the experiment the physical durability, elasticity, and biological tightness, morphogenesis colonic anastomoses were studied. Results. Optimal sizes of compression devices are 32 Γ 18 and 28 Γ 15 mm with a wire diameter of 2.2 mm, the force of winding compression was 740 Β± 180 g/mm2. Compression suture has a higher physical durability compared to stapled (W = β33.0; p < 0.05) and sutured (W = β28.0; p < 0.05), higher elasticity (p < 0.05) in all terms of tests and biological tightness since 3 days (p < 0.001) after surgery. The regularities of morphogenesis colonic anastomoses allocated by 4 periods of the regeneration of intestinal suture.Β Conclusion. Obtained experimental data of the use of compression anastomosis of the colon by the nickel-titanium devices are the convincing arguments for their clinical application.Β Π¦Π΅Π»Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ β ΠΏΡΡΠ΅ΠΌ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ° ΠΎΠ±ΠΎΡΠ½ΠΎΠ²Π°ΡΡ ΠΏΡΠ΅ΠΈΠΌΡΡΠ΅ΡΡΠ²Π° ΠΊΠΎΠΌΠΏΡΠ΅ΡΡΠΈΠΎΠ½Π½ΡΡ
ΡΠΎΠ»ΡΡΠΎΠΊΠΈΡΠ΅ΡΠ½ΡΡ
Π°Π½Π°ΡΡΠΎΠΌΠΎΠ·ΠΎΠ², ΡΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
Ρ ΠΏΠΎΠΌΠΎΡΡΡ Π½ΠΈΠΊΠ΅Π»ΠΈΠ΄-ΡΠΈΡΠ°Π½ΠΎΠ²ΡΡ
(TiNi) ΠΏΡΠΎΠ²ΠΎΠ»ΠΎΡΠ½ΡΡ
ΡΡΡΡΠΎΠΈΜΡΡΠ², ΠΎΡΠ½ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΠΎ ΡΡΠ°Π΄ΠΈΡΠΈΠΎΠ½Π½ΡΡ
ΡΠΏΠΎΡΠΎΠ±ΠΎΠ² Π°Π½Π°ΡΡΠΎΠΌΠΎΠ·ΠΈΡΠΎΠ²Π°Π½ΠΈΡ. ΠΠ°ΡΠ΅ΡΠΈΠ°Π»Ρ ΠΈ ΠΌΠ΅ΡΠΎΠ΄Ρ. Π Ρ
ΠΎΠ΄Π΅ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½Π½ΠΎΠ³ΠΎ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΌΡ ΠΎΡΠ΅Π½ΠΈΠ»ΠΈ ΠΊΠ°ΡΠ΅ΡΡΠ²ΠΎ ΠΊΠΎΠΌΠΏΡΠ΅ΡΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ Π°Π½Π°ΡΡΠΎΠΌΠΎΠ·Π° ΡΠΎΠ»ΡΡΠΎΠΈΜ ΠΊΠΈΡΠΊΠΈ ΠΏΠΎ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ Ρ Π»ΠΈΠ³Π°ΡΡΡΠ½ΡΠΌ ΠΈ ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΠΌ ΡΠΏΠΎΡΠΎΠ±Π°ΠΌΠΈ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΠΎΡΡΡΡΡ. ΠΡΠ»ΠΈ ΡΠΎΠ·Π΄Π°Π½Ρ 3 ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΠ΅ Π³ΡΡΠΏΠΏΡ, Π²ΠΊΠ»ΡΡΠ°ΡΡΠΈΠ΅ Π±Π΅ΡΠΏΠΎΡΠΎΠ΄Π½ΡΡ
ΡΠΎΠ±Π°ΠΊ: Π² 1-ΠΈΜ Π³ΡΡΠΏΠΏΠ΅ (n = 30) ΠΊΠΎΠΌΠΏΡΠ΅ΡΡΠΈΠΎΠ½Π½ΡΠ΅ Π°Π½Π°ΡΡΠΎΠΌΠΎΠ·Ρ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π»ΠΈΡΡ TiNi-ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠ°ΠΌΠΈ; Π²ΠΎ 2-ΠΈΜ (n = 25) β ΡΠΈΡΠΊΡΠ»ΡΡΠ½ΡΠΌΠΈ ΡΡΠΈΠ²Π°ΡΡΠΈΠΌΠΈ Π°ΠΏΠΏΠ°ΡΠ°ΡΠ°ΠΌΠΈ; Π² 3-ΠΈΜ (n = 25) β Π»ΠΈΠ³Π°ΡΡΡΠ½ΡΠΌ ΡΠΏΠΎΡΠΎΠ±ΠΎΠΌ ΠΏΠΎ ΠΠ°ΡΠ΅ΡΡΠΊΡβΠΠ°ΠΌΠ±Π΅ΡΡ. Π ΠΏΡΠΎΡΠ΅ΡΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Π±ΡΠ»ΠΈ ΠΈΠ·ΡΡΠ΅Π½Ρ ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠ°Ρ ΠΏΡΠΎΡΠ½ΠΎΡΡΡ, ΡΠ»Π°ΡΡΠΈΡΠ½ΠΎΡΡΡ ΠΈ Π±ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠ°Ρ Π³Π΅ΡΠΌΠ΅ΡΠΈΡΠ½ΠΎΡΡΡ ΡΠΎΠ»ΡΡΠΎΠΊΠΈΡΠ΅ΡΠ½ΡΡ
Π°Π½Π°ΡΡΠΎΠΌΠΎΠ·ΠΎΠ², ΠΌΠΎΡΡΠΎΠ³Π΅Π½Π΅Π· Π°Π½Π°ΡΡΠΎΠΌΠΎΠ·ΠΎΠ².Β Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. ΠΠΏΡΠΈΠΌΠ°Π»ΡΠ½ΡΠΌΠΈ ΡΡΠΈΡΠ°Π΅ΠΌ ΡΡΡΡΠΎΠΈΜΡΡΠ²Π° Π΄Π»Ρ ΠΊΠΎΠΌΠΏΡΠ΅ΡΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ ΡΠΎΠ·Π΄Π°Π½ΠΈΡ Π°Π½Π°ΡΡΠΎΠΌΠΎΠ·ΠΎΠ² ΡΠ°Π·ΠΌΠ΅ΡΠ°ΠΌΠΈ 32 Γ 18 ΠΈ 28 Γ 15 ΠΌΠΌ Ρ Π΄ΠΈΠ°ΠΌΠ΅ΡΡΠΎΠΌ ΠΏΡΠΎΠ²ΠΎΠ΄Π° 2,2 ΠΌΠΌ, ΡΠΈΠ»ΠΎΠΈΜ ΠΌΠ΅ΠΆΠ²ΠΈΡΠΊΠΎΠ²ΠΎΠ³ΠΎ ΡΠ΄Π°Π²Π»Π΅Π½ΠΈΡ ΡΠΊΠ°Π½Π΅ΠΈΜ 740 Β± 180 Π³/ΠΌΠΌ2. ΠΠΎΠΌΠΏΡΠ΅ΡΡΠΈΠΎΠ½Π½ΡΠΈΜ ΡΠΎΠ² ΠΎΠ±Π»Π°Π΄Π°Π΅Ρ Π±ΠΎΠ»Π΅Π΅ Π²ΡΡΠΎΠΊΠΎΠΈΜ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΎΠΈΜ Π³Π΅ΡΠΌΠ΅ΡΠΈΡΠ½ΠΎΡΡΡΡ ΠΏΠΎ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ Ρ ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΠΌ (W = β33,0; p < 0,05) ΠΈ ΡΡΡΠ½ΡΠΌ ΡΠ²Π°ΠΌΠΈ (W = β28,0; p < 0,05), Π° ΡΠ°ΠΊΠΆΠ΅ Π±ΠΎΠ»Π΅Π΅ Π²ΡΡΠΎΠΊΠΎΠΈΜ ΡΠ»Π°ΡΡΠΈΡΠ½ΠΎΡΡΡΡ (Ρ < 0,05) Π½Π° ΠΏΡΠΎΡΡΠΆΠ΅Π½ΠΈΠΈ Π²ΡΠ΅Π³ΠΎ ΡΡΠΎΠΊΠ° ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΈ Π±ΠΎΠ»Π΅Π΅ Π²ΡΡΠΎΠΊΠΎΠΈΜ Π±ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠΈΜ Π³Π΅ΡΠΌΠ΅ΡΠΈΡΠ½ΠΎΡΡΡΡ (Ρ < 0,001) Ρ 3-Ρ
ΡΡΡΠΎΠΊ ΠΏΠΎΡΠ»Π΅ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΈ. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Ρ Π·Π°ΠΊΠΎΠ½ΠΎΠΌΠ΅ΡΠ½ΠΎΡΡΠΈ ΠΌΠΎΡΡΠΎΠ³Π΅Π½Π΅Π·Π° ΡΠΎΠ»ΡΡΠΎΠΊΠΈΡΠ΅ΡΠ½ΡΡ
Π°Π½Π°ΡΡΠΎΠΌΠΎΠ·ΠΎΠ², Π²ΡΠ΄Π΅Π»Π΅Π½Ρ 4 ΠΏΠ΅ΡΠΈΠΎΠ΄Π° ΡΠ΅Π³Π΅Π½Π΅ΡΠ°ΡΠΈΠΈ ΠΊΠΈΡΠ΅ΡΠ½ΠΎΠ³ΠΎ ΡΠ²Π°.Β ΠΠ°ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΠΎ ΠΈΠ·ΡΡΠ΅Π½ΠΈΡ ΠΊΠΎΠΌΠΏΡΠ΅ΡΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ Π°Π½Π°ΡΡΠΎΠΌΠΎΠ·Π° ΡΠΎΠ»ΡΡΠΎΠΈΜ ΠΊΠΈΡΠΊΠΈ TiNi-ΠΏΡΠΎΠ²ΠΎΠ»ΠΎΡΠ½ΡΠΌΠΈ ΡΡΡΡΠΎΠΈΜΡΡΠ²Π°ΠΌΠΈ ΡΡΠΈΡΠ°Π΅ΠΌ ΡΠ΅ΡΡΠ΅Π·Π½ΡΠΌ ΠΎΡΠ½ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ Π΄Π»Ρ Π²Π½Π΅Π΄ΡΠ΅Π½ΠΈΡ ΡΡΠΎΠ³ΠΎ ΡΠΏΠΎΡΠΎΠ±Π° Π°Π½Π°ΡΡΠΎΠΌΠΎΠ·ΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π² ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΡΡ ΠΏΡΠ°ΠΊΡΠΈΠΊΡ.
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