Репозиторий Университета

The article reviews the results of using optical coherence tomography (OCT) - a non-invasive non-contact examination method for obtaining a tomographic slice image of the site of glaucoma surgery. The method helped reveal the functional relationships between the newly created outflow pathways and various parameters of the filtering bleb such as its linear dimensions, wall structure, presence of microcysts, position of drainage, etc. Due to its high resolution and noninvasiveness, OCT can be reliably used to examine the structure of aqueous outflow pathways in different postoperative periods with accuracy close to morphometric. The amount of data that had been obtained with the method has allowed the creation of new classifications and clarification of OCT-relevant prognostic signs for glaucoma surgery site.

The article describes a clinical case of Descemet's membrane detachment that occurred during cataract phacoemulsification with implantation of intraocular lens. Significant corneal edema developed in the early post-op period. Considering the ability of endothelium to close its own defects even with large injury area, the patient was followed-up for 2 years. Corneal edema was treated during 4 months and concluded with instillations of osmotic and anti-inflammatory drugs. At 1.5-2 months of therapy, the edema was gradually decreasing, and by the 4th month of the follow-up the cornea was practically transparent. Density of endothelial cells in central cornea, where the Descemet's membrane was absent, comprised 1000 cells/mm2. Further observation revealed cornea staying transparent for 2 years after the surgery. Complete optical recovery of patients with Descemet's membrane defect in this case study is supported by similar clinical cases briefly described in the article, and evidence that structural functional recovery of the corneal endothelial layer is possible even when it has large defects (more than 2.5 mm in diameter).

The article presents a clinical observation of ocular thrombotic microangiopathy in atypical hemolytic-uremic syndrome - a rare genetic disease characterized by systemic thrombosis caused by uncontrolled activation of alternative complement pathway. A typical manifestation of this ocular lesion in this disease is bilateral Purtscher-like retinopathy. Timely diagnostics of atypical hemolytic-uremic syndrome, including ophthalmologic examination, determines the early start of a highly effective pathogenetic therapy with complement inhibitor eculizumab.

One of the most common and potentially threatening manifestations of granulomatosis with polyangiitis (GPA) is orbital lesion. PURPOSE: To study the clinical course and prognosis of orbital lesions of various localization in GPA patients. Material and me-thods. The study included 226 patients with GPA, 74 of them with orbital lesion. Ophthalmic examination consisted of visual acuity test, biomicroscopy, ophthalmoscopy, exophthalmometry and ocular mobility test. Visualization was done using multislice computed tomography and/or magnetic resonance tomography and/or ultrasound examination. RESULTS: Among the patients of the study group, in 35.1% the lesion was limited to dacryoadenitis, in 4.0% of patients - to myositis, and 70.8% had extensive inflammatory orbital masses. Patients with orbital masses had systemic disease in 51.1%, compared to 7.7% in dacryoadenitis (p=0.00). Clinical progression in patients with orbital masses was characterized by severe exophthalmos, periorbital swelling and hyperemia. Patients with dacryoadenitis, on the contrary, had only mild symptoms. Patients with orbital masses had unfavorable prognosis. There were only three patients with myositis in the study group, so the data on them is limited; their clinical symptoms included light periorbital swelling, exophthalmos, strabismus, painful binocular diplopia and eye movement restriction. The disease was recurring in two cases. CONCLUSION: Patients with orbital involvement in GPA may have different course of the disease depending on the localization of inflammation.

© 2018 Media Sphera Publishing Group.All Rights Reserved. Aim. Determination of desialized apolipoprotein-B-100 (apoB-100) and lipoprotein-containing circulating immune complexes in patients with chronic kidney disease (CKD) in program hemodialysis with type 2 diabetes mellitus. Materials and methods. We examined 81 patients with CKD (50 men / 31 women) treated with program hemodialysis, of which 36 (17/19) with type 2 diabetes mellitus, 45 (33/12) non-diabetic patients. The levels of total cholesterol, triglycerides and desialylated apoB-100 in blood plasma and lipoprotein-containing circulating immune complexes. A color duplex scan of brachiocephalic arteries was used to assess the extent of development of atherosclerosis with the determination of the thickness of the intima-medial complex. Results and discussion. Patients with diabetes had high values of total cholesterol, triglycerides (p<0.05). Duplex scan of brachiocephalic arteries showed an increase in the thickness of intima-medial complex in all patients for program hemodialysis, however, in patients with diabetes, the thickness was 13% higher (p<0.05). In patients with diabetes, plaques with stenosis up to 50% prevail, compared with non-diabetic patients, p<0.05. The incidence was significantly higher for desialized apoB-100 by 46% in patients with diabetes on hemodialysis compared non-diabetic patients (p<0.05). An increase in the level of lipoprotein-containing circulating immune complexes by 39%, (p<0.05) in patients with diabetes mellitus was observed, compared with patients non-diabetic patients. The correlation between desialized apoB-100 and duplex scan of brachiocephalic arteries parameters (r=0.325), as well as between the cholesterol level and stenosis up to 50% (r=0.465) in patients with diabetes mellitus, was found to be of medium strength. The patients with diabetes and CKD, myocardial infarction developed 79% more often than in patients without diabetes (p<0.05). Thus, immunogenic lipid markers of atherosclerosis can be considered both as mechanical factors of atherogenesis and diagnostic and prognostic characteristics in type 2 diabetic patients with impaired renal function and chronic renal insufficiency. The conclusion. Accelerated development of atherosclerosis with diabetes and CKD, confirmed with the help of duplex scan of brachiocephalic arteries, may be associated with an increase in the level of modified low density lipoprotein.

© 2018, Media Sfera. All rights reserved. At present, phacoemulsification and trabeculectomy are the most widespread surgery methods in cataract and glaucoma treatment, generally recognized as the gold standard. Among elderly patients, comorbid glaucoma and cataract are extremely prevalent, so the order of the two surgeries and the time interval between them are pivotal choices when planning treatment strategy. The reason for it is that almost any eye surgery is considered a risk factor for long-term trabeculectomy effectiveness. In attempts to solve this problem, numerous studies have been conducted on the impact of cataract surgery on filtration bleb scarring. The problem of determining the time interval between surgeries, as well as other treatment nuances, remains relevant despite the long history of research and publications. Some results are cited as general recommendations on treatment tactics (increasing the time interval between operations, using antimetabolite and anti-inflammatory therapy, minimizing intraoperative traumatism). However, currently there are no specific recommendations for one of the most important factors - the time interval between cataract extraction and trabeculectomy.

© 2018 Media Sphera Publishing Group.All Rights Reserved. In the modern clinic of internal diseases, the specific gravity of the infectious pathology, manifested by various clinical syndromes, is increasing. Infectious pathology is represented by diseases of the respiratory system, heart disease (infective endocarditis, cardioimplant infections, viral myocarditis), infectious arthropathies, extrahepatic manifestations of viral hepatitis, cytopenic syndromes, various manifestations of sepsis and some other conditions.In most cases, the diagnosis and management of such patients is the responsibility of the internist, who must be able to suspect the infection and carry out its verification. In the process of diagnostic search and management of patients, close interaction of the internist with a clinical microbiologist, clinical pharmacologist and other related specialists is necessary.

© 2018 Media Sphera Publishing Group.All Rights Reserved. A patient with infective endocarditis (IE), complicated by the development of the abscess of the spleen, is described. The diagnosis of IE was verified several months after the onset of clinical symptoms (fever, hemorrhagic skin rashes, splenomegaly).The patient suspected hemorrhagic vasculitis and lymphoma of the spleen, which were not confirmed. With transesophageal echocardiography, vegetations on the aortic valve have been identified, and, according to CT, a spleen infarct with suspected abscess. A successful simultaneous operation was performed - aortic valve replacement and splenectomy. An abscess was found in the spleen. The patient is discharged in a satisfactory condition.

© 2018, Springer Science+Business Media, LLC, part of Springer Nature.  We presented the results of our study of chronostructure of BP, HR, electrolyte excretion, and locomotor activity under conditions of “free-run rhythm” (light deprivation). In adult male Wistar-Kyoto (normotensive) and SHR (spontaneously hypertensive) rats, BP, biopotentials of the heart (ECG), and locomotor activity were recorded over 24 h by telemetric monitoring and the rate of excretion of electrolytes (Na + , K + , Ca 2+ , and Mg 2+ ) during the nighttime and daytime hours was measured. It was found that under free-run rhythm, 24-h profiles of BP, HR, excretory function of the kidneys, and locomotor activity underwent more considerable changes in normotensive Wistar-Kyoto rats in comparison with hypertensive SHR rats. However, hypertensive rats demonstrated pronounced changes in rhythmic characteristics of HR, which can restrict adaptation reserves of the cardiovascular system.

The article reviews the literature devoted to modern intraoperative methods of preventing cicatricial process at the site of dacryostoma after endonasal endoscopic dacryocystorhinostomy. Despite the constant improvement of the surgery technique, complications in the postoperative period still occur. They include the formation of granulation tissue at the sites of dacryostoma, synechiae in the nasal cavity, or narrowing of the dacryostoma, which ultimately leads to a relapse of the disease. The main prevention methods are construction of flaps from the medial wall of the lacrimal sac, from mucosa of the nasal cavity, and intubation of the dacryostoma with the lacrimal implant. They are used separately and in various combinations.

© 2013-2018 Federal Scientific Center for Medical and Preventive Health Risk Management Technologies. Yessotoxin (YTX) is a polyether. There are more than 90 known derivatives of yessotoxin. YTX was excluded from diarrhea toxins group as it, unlike okadaic acid, doesn't cause diarrhea. YTX chemical structure is similar to that of brevetoxins and ciguatoxins that influence functioning of calcium-sodium pump and trans-membrane ion channels. So, YTX can exert influence on functioning of all the organs and systems in a body. YTX is known to promote apoptosis in the cerebral tissues. Average lethal dose LD50 for YTX and its analogues varied from 100 μg/kg to 500-750 μg/kg; the figures were obtained in various experiments performed on mice. Safe YTX level for acute impact (acute reference dose) amounts to 25 μM/kg of body weight. Nowadays toxicity parameters for YTX and some of its analogues are determined; its basic action mechanisms and a role it plays in promoting apoptosis are well-known. In spite of more and more data on biological effects produced by YTX on a warm-blooded organism, experts are still unable to describe its action mechanisms precisely. Our research goal was to examine YTX toxicity in experiments in vivo in doses that were lower than the detected acute reference dose. The experiment was performed on 72 male Wistar rats with initial body weight being equal to 100±10 g. Animals were given dry balanced feedstuffproduced by "Laboratortakorm" LLC (Russia) and had free access to it. We used YTX preparation produced by "National Research Council Canada" (Canada) in our experiment; the preparation was a methanol solution (YTX content was equal to 4.3 μmol). We determined mass of internal organs, biochemical and hematological blood parameters, apoptosis of brain cells, malonic dialdehyde level in the brain and reduced glutathione in the liver. We showed that YTX doses (2μM/kg, 8μM/kg and 12μM/kg) lower than ARfD=2μM/kg can exert toxic impacts on a warm-blooded organism. The obtain data prove it is necessary to additionally assess risks of an increase in maximum permissible YTX contents in shellfish from 1 mg/kg to 3.75 mg/kg.

© The authors team, 2018.All Rights Reserved. Purpose: to evaluate effectiveness of Oscillococcinum in the treatment of acute respiratory viral infections (ARVI) in children of different age groups. We observed 140 children from 1 to 14 years with mild to moderate-severe acute respiratory viral infection. 80 children (Group 1) were treated with Oscillococcinum, 60 children (Group 2) were treated symptomatically. Group 1 was divided into Subgroup 1А (40 children of 1-5 years old) and Subgroup 1B (40 children >5-14 years old). Group 2 was divided into Subgroup 2А (30 children of 1-5 years old) and Subgroup 2B (30 children >5-14 years old). The follow-up period was 7-10 days. Clinical efficacy was assessed by the severity of ARVI symptoms in scores from 0 to 2. All adverse events of the therapy were recorded. Also we evaluated disappearance of ARVI symptoms within 48 hours after the beginning of the therapy. Results: Oscillococcinum reduced the duration of ARVI in children of different age groups. During the first two days the symptoms of acute respiratory viral infection disappeared in 13 (16.3%) children of Group 1 receiving oscilococcinum and in 4 (6.7%) patients from Group 2 (OR = 2.7, 95 % CI 0.8-8.8, p <0.001). Conclusion: Oscillococcinum is an effective and safe drug to treat ARVI in children of different age groups.

© The authors team, 2018.All Rights Reserved. Due to its cardinal differences from the adult oncology the children's oncology takes a special place in the national cancer control program. The article analyzes up-to-date problems and suggests their solutions. It contains statistical indicators and a three-level model of medical care for children with cancer. The tasks of the national program stated in the article reflect the author's point of view and are to be further discussed.

© Springer Nature Switzerland AG 2018. Video games are often seen as a reason for numerous psychological changes, both positive and negative, in players. For instance, many authors believe that video games push children and adults towards risky behaviors and impulsivity. The study aimed to analyze both theoretical and empirical evidences of that sort, as well as to investigate parameters of personal and cognitive impulsivity and risk-readiness in adult video gamers. The sample of gamers included 223 participants, all from Russia. Impulsivity and related personal traits were measured with Eysencks’ Impulsiveness Scale (I-7) and Kornilova’s Personal Risk Factors Questionnaire. Impulsivity as cognitive style was measured by Kagan’s MFFT. No evidence of high impulsivity was found, though video game players, who played more than 12 h per week turned out to be more venturesome, compared to less active gamers. Sex-related differences were investigated: female gamers scored lower in empathy, while male gamers showed higher venturesomeness. In a cognitive style study, video gamers were more accurate compared to non-gamers, and thus showed no tendency for impulsivity. The results are contrasted to the published data, when applicable.

© Bionika Media Ltd. The authors have carried out a systems analysis of the data available in the current literature on the effect of micronutrients, such as iodine, polyunsaturated fatty acids, folic acid, and vitamin D, on a woman’s reproductive health. Due to its geographical location, climatic features, and eating habits, our country has the proven deficiency of a number of micronutrients that play an important role in the periconceptional period. These micronutrients include iodine, polyunsaturated fatty acids, folic acid, and vitamin D. The content of micronutrients should not exceed the physiological daily requirement in the basic complexes intended for the prevention of deficiency, The excessive content of components can cause undesirable reactions and contribute to the allergization of newborns. In clinically pronounced deficiency, the basal complex can be combined with a monocomponent vitamin preparation for the targeted correction of vitamin and mineral status.

© 2018, Dynasty Publishing House. All rights reserved. The objective. To improve methods of surgical management of post-caesarean uterine scar defect and to justify the choice of an operative procedure depending on the clinical situation and condition of the deficient scar. Patients and methods. We examined 44 patients aged 24 to 42 years, diagnosed with «Defect of the uterine scar after caesarean section». A comparative analysis of two methods of metroplasty – abdominal and vaginal – was performed. For diagnosing the state of the scar we used: transvaginal ultrasound imaging in the 2D, 3D and high-sensitivity power Doppler modes, magnetic resonance imaging, hysteroscopy. Results. The advantage of the vaginal method was recorded by several characteristics (duration of surgery, volume of intraoperative blood loss, restoration of physical activity within the first 24 hours). But its application required a number of important conditions, among which a history of not more than two caesarean sections. Pregnancy occurred in 24 (54.5%) patients 9–26 months after surgery and ended with caesarean deliveries at term. Conclusion. Management of isthnocele per vaginalis is the least traumatic method among all known techniques. But at the slightest risk of complications associated with damage of the urinary tract, laparotomy should be used. Each patient with post-caesarean uterine scar defect needs an individual approach.

© 2018, Dynasty Publishing House. All rights reserved. The objective. Based on revealed changes in the parameters of the blood coagulation system and the functional state of the endothelium to propose pathogenetically justified therapeutic and diagnostic approaches ensuring a higher effectiveness of therapy of inflammatory bowel disease and prevention of complications. Patients and methods. We examined 78 children aged 3 to 15 years with newly diagnosed IBD, standard gastroenterological examination was performed to determine specificities of the coagulation system of IBD patients with administration of tests characterizing the state of all its components (number, size and aggregation of platelets, von Willebrand factor, international normalised ratio, activated partial thromboplastin time, thrombin time, fibrinogen, D-dimer, nitric oxide). Results. In the course of the study we found disorders in all components of the coagulation system. During exacerbation in children with ulcerative colitis and Crohn’s disease total concentrations of nitrates and nitrites in blood increase, in UC a reduced capability of the initial stage of thrombus formation with regard to the parameter «degree of platelet aggregation» can be found, which might account for frequent bleedings in this pathology. In CD, a significant decrease of platelet aggregation size was found, which is indicative of impaired functional properties of platelets. Investigating the coagulation component we found disorders of the final state of hemostasis – a prolonged time of fibrin clot formation resulting from prolonged TT, and also higher levels of D-Dimer, which is indicative of increased fibrinosysis processes. After alleviation of disease exacerbation the coagulation parameters only partially normalised: deviations in the platelet component remained. Conclusion. The processes of intestinal wall inflammation and disorders of the blood coagulation system in IBD exacerbation and in the course of its alleviation run parallel to each other. A developed clinical picture of IBD is accompanied by disorders of the initial (thrombus formation) and final (increased fibrinosysis) stages of blood clotting. A decreased degree and quality of platelet aggregation, increased fibrinosysis are evidently an important pathogenetic component of gastrointestinal bleeding.

© 2018, Dynasty Publishing House. All rights reserved. The objective. To study the quality of life of feeding mothers and toe establish whether the adherence to breastfeeding influences physical and mental health of women. Patients and methods. We conducted a questionnaire survey of 151 mothers who had small infants. Their quality of life was studied with the help of the SF-36 questionnaire. Results. As we have found, the higher is the material wellbeing of the family, the less women adhere to breastfeeding (per capita income of the family of breastfeeding mothers are almost 2 times lower than in nonbreastfeeding women – 22500 ± 3.800 and 43958.33 ± 4.240 rubles, respectively, р < 0.05). Subjective perceptions of physical health (functioning), parameters of life activity (Vitality – VT) and subjective assessment of their health (General Health – GH) were similar in both breastfeeding and nonbreastfeeding mothers (VT 56.48 ± 3.77 and 58.33 ± 2.91; GH 68.52 ± 4.13 and 65.83 ± 1.95, р > 0.05). Irrespective of breastfeeding adherence, women after childbirth did not report of worsening of their health (50.93 ± 4.01 and 44.79 ± 2.61, respectively, р > 0.05). But in breastfeeding mothers parameters of the quality of life were demonstrative of a higher endurance (physical functioning 73.89 ± 1.66 and 85.22 ± 3.19, role functioning 52.78 ± 2.16 and 65.63 ± 3.73, р < 0.05). Breastfeeding mothers more rarely had difficulties in routine activities due to their physical condition and pain (bodily pain 73.89 ± 3.77 and131.35 ± 2.16, р < 0.05), physical and emotional condition did not interfere with communication and social activity (social functioning 67.13 ± 1.93 and 139.8 ± 6.92, р < 0.05, mental health 95.11 ± 7.18 and 58.17 ± 8.11, р < 0.05). They are less prone to depression and have higher values of the positive emotions parameter (role emotional functioning 64.08 ± 3.98 and 215.73 ± 12.67, р < 0.01). Conclusion. The results of the study can be used in programmes aimed at expanding breastfeeding.

© 2018, Dynasty Publishing House. All rights reserved. Literature data about biomechanical foundations of the development of foot pathologies in children and adolescents are analysed. The development and formation of anatomical structure of the foot as a flexible movable arch, and biomechanical specificities in human standing and walking are also considered. As has been noted, correct development and formation of the anatomical skeleton of the foot, its ligamentous-muscular apparatus and sole skin ensure its reliable functioning. As has been pointed out, understanding of the biomechanics of walking is extremely important for an orthopaedist when choosing a method of foot pathology correction, in particular, in rehabilitation of paediatric patients. The main functions of the foot have been specified – spring, balance, and propulsion. Most methods of diagnosing foot injury and disease, as a rule, are aimed at evaluating the spring function of the foot based on analysis of its anatomical structures. The conclusion has been made that the problem of correction and management of foot dysfunctions and pathologies should be solved as early as in childhood, which is possible only on the basis of complex consecutive implementation of a number of measures that include: diagnostics, choice of a way of correction, design and manufacturing of an individual orthosis (conservative method) or surgical treatment. Large-scale clinical testing of modern methods of podology and biomechanics in diagnosing and treatment of foot pathologies and correction of disorders of its stance function will contribute to progress in solving such a significant medico-social problem as foot disorders in childhood and adolescence.