Репозиторий Университета

© 2018 Izdatel'stvo Meditsina. All rights reserved. Spinal cord injury (SCI) is a devastating condition that affects mostly young and active individuals but also impacts their family members and results in significant challenges for medical care and social integration. In addition to obvious motor impairment (tetraplegia/paraplegia), these individuals also suffer from a variety of less obvious but devastating autonomic nervous system dysfunctions that negatively impact their health and affect various aspects of daily living. Physical training and sports are essential components of rehabilitation and leaser activities for people with disabilities. Number of individuals with SCI who run an active lifestyle is increasing. Physical activity puts an additional stress on various organs and body systems. The presented manuscript describes in detail cardiovascular dysfunctions in physically active individuals with a SCI, including those engaged in Paralympic sports: low resting blood pressure, orthostatic hypotension, arrhythmias, and the phenomenon of «autonomic dysreflexia». We also address issues related to self-induced episodes of autonomic dysreflexia in order to improve athletic performance ― a phenomenon known as «boosting». Boosting may improve sports performance in short term but is associated with the risk of serious cardiovascular disorders and even sudden death. This practice is considered as anti-doping rule violation by the International Paralympic Committee and thus prohibited. Understanding of the changes occurring in the body of a physically active individual after SCI is necessary for general practitioners, neurologists, rehabilitation specialists, sports medicine physicians, as well as for specialists of adapted physical education and sports.

© 2018 Russian Electronic Journal of Radiology. All rights reserved. Purpose. To present the possibility of the computed tomography (CT) in determination of a kidney injury for improving the quality of diagnostics and treatment of this group of patients. Materials and methods. Analyzed data comes from 72 T-researches with 50 patients with kidney injury at the closed injury of a stomach who were on treatment in Sklifosovsky Research and Clinical Institute for Emergency Medicine. Data of T was verified with the results of operations and autopsies. For determination of injury severity of a kidney the scale of Organ Injury Scale (OIS) was used. Results and discussion. Kidney injuries of the 1 degree (a contusion of a kidney and a subcapsular hematoma) were found in 12 patients, including the one with pre-existing pathology. Injuries of a kidney of the II degree were revealed in 14 patients: a cortical gap-in 9 cases, a subcapsular hematoma of a kidney with gap signs-in 3 cases; a subcapsular cyst with symptoms of hemorrhage and a gap-in two patients. Kidney injuries of the III degree were diagnosed in 7 patients in the form of a rupture of cortical substance from 12 mm to 18 mm deep. Damages of the IV degree were revealed in cases of 11 patients, including thrombosis of a segmentary branch of a renal artery in 6 patients. Injuries of a kidney of the V degree were revealed in 6 patients mainly in the form of fragmentation of a kidney. For an assessment of efficiency of treatment of 22 patients CT research in dynamics was executed, identification of complications served as the indication for repeated surgical intervention. Conclusions. T is an informative method which is possible to define not only an injury of a kidney, but also the degree of its severity. It allows to choose rational tactics for the treatment and to avoid an unreasonable nephrectomy. Performance of T in dynamics allows to estimate efficiency of treatment and in due time to diagnose complications.

© 2018 Russian Electronic Journal of Radiology. All rights reserved. Purpose. To identify the possibilities of computed tomography in detection of the nature and severity of the thoracic aorta trauma. Materials and method. Results of computed tomography (CT) of 15 patients from 2006 to 2017 with severe combined blunt injuries and thoracic aorta injury who had been treated in N. V. Sklifosovsky Research Institute for Emergency Medicine were analyzed. The majority of the patients were male 73% (n=11), the average age was 41,3+ 7,6 (22-79) years. The cause of injury in 12 cases were motor vehicle accidents, in 2 cases-falling from a height of more than three meters, in one case - A fall from patient's own height. Results. In evaluating the severity of the aortic injuries the classification proposed by the American Association of Thoracic Surgeons in 2013 was used. In our study there were no patients with Grade I; Grade II-small pseudoaneurysm (less than 50% of the circumference of the aorta) was identified in 8 patients; Grade III-big pseudoaneurysm (more than 50% of the circumference of the aorta) was identified in 3 patients; Grade IV-complete aortic rupture was identified in 4 patients. Simultaneously with the thoracic aortic injury pulmonary contusion was found in 9 patients, in 8-multiple fractured ribs, in 1-fracture of the sternum. In 8 patients mediastinal hematoma was identified, hemopericardium was found in 3 patients. Hemothorax was found in 12 patients. Signs of craniocerebral trauma were found in 6 patients, spinal cord injury-in 3 patients, injuries of the musculoskeletal system-in 4 patients, abdominal parenchymal organ injury was found in 4 patients (in 3 of these cases-of the liver, in 1-of the kidney), in one case sings of the duodenal rupture were found, in another-left-sided diaphragmatic rupture, in 1 patient with thoracic aortic rupture, a pseudoaneurysm of the hepatic artery was also found. Discussion. Using the classification of the severity of the aortic injuries by the CT results in patients with stable hemodynamics enables the ability to determine the degree of aortic stability, to predict the risk of rupture and to choose the type of optimal surgical intervention (early or delayed). There is a possibility to perform endoprosthetic repair of the aorta and surgical intervention of other areas against the background of controlled hypotension in patients with simultaneous traumatic aortic injury and other combined injuries. Conclusion. It is advisable to perform a CT examination at once of several anatomical regions when examining patients with severe combined injuries. Evaluation of the mediastinum structures in patients with severe combined injuries should be performed on the basis of a computed tomography of the chest with mandatory intravenous administration of contrast media. It is necessary to perform multiplanar and three-dimensional volume rendering to allow better visualization of the extent of thoracic aortic injuries. Choosing a method of treatment in victims with thoracic aorta injury is based on the use of endoprosthetics as an effective and low-traumatic intervention that can be used simultaneously with other surgical methods of treatment.

© 2018 Pirogov Russian National Research Medical University. All rights reserved. The health of the cervical spine (CS) and the functional state of the pectoral girdle are interdependent. Injuries to the pectoral girdle can be an underlying cause of CS pain, including cervicalgia. The aim of this study was to evaluate the condition of the cervical spine in patients with cervicalgia developed after a pectoral girdle injury using radiographic and physical examinations. The study included 400 patients complaining of cervicalgia. Pain intensity was evaluated on the visual analog scale (VAS); the impact of the condition on patients' lives was assessed using the Neck Disability Index (Russian language). During physical examinations, the general health of the spine was evaluated and abnormalities in the cervical spine were noted. All participants underwent a radiographic scan of the cervical spine in the lateral and anterior-posterior projections; 49.5% of patients underwent postural digital radiography to evaluate their CS sagittal profile. All patients received an MRI scan. Based on the results, we identified certain functional changes in the cervical spine which possibly caused cervicalgia. Structurally and functionally, the changes were divided into static and dynamic. We conclude that cervical spinal pain is a common problem among patients with previous pectoral girdle injury.

© 2018 Media Sphera Publishing Group. All rights reserved. Obstetric atypical hemolytic uremic syndrome (aHUS) is one of the reasons for the development of acute kidney injury (AKI) and can determine the prognosis of both mother and child. Aim. Analysis of clinical manifestations, course and outcomes of obstetric aHUS. Materials and methods. 45 patients with aHUS development during pregnancy or immediately after childbirth were observed between 2011 and 2017, age from 16 to 42 years. Results and discussion. All patients had AKI (serum creatinine 521,5±388,0 μmol/l, oliguria or anuria that required initiation of hemodialysis). 93.3% pts had extrarenal manifestations of TMA with the development of multiple organ failure (MOF). The mean number of damage organs was 3,7±1,2. In all patients, the development of aHUS was preceded by obstetric complications, surgery, infection, etc. In the outcome: 53.4% women showed complete recovery of renal function, 11.1% developed CKD 4-5 stages, 35.5% had dialysis-dependent end-stage renal failure (ESDR). Maternal mortality was 23.9%. Perinatal mortality was 32.6%. The early start of eculizumab treatment (within 1-2 weeks from the onset of aHUS), compared with therapy start after 3 weeks, increased the chances of favorable outcome for mother in 5.33 times, and the chances for normalization of renal function in 48.7 times. Conclusion. Obstetric aHUS is characterized by the development of AKI in 100% of cases. In most patients, the obstetric aHUS occurs with the development of MOF. Timely diagnosis of aHUS and immediate treatment by eculizumab allows not only to save the life of patients, but also completely restore their health.

© 2018 Media Sphera Publishing Group. All Rights Reserved. Surgical treatment of posterior cranial fossa and cerebellopontine angle tumors is associated with a risk of facial nerve dysfunction. The causes for facial muscle paresis include nerve compression by the tumor, destruction of the nerve structure by the tumor growing from nerve fibers, nerve injury during surgical removal of the tumor, etc. The first 3 months after facial nerve injury are a potential therapeutic window for the use of botulinum toxin type A (BTA). During this period, the drug is introduced both in the healthy side to improve the facial symmetry at rest and during mimetic movements and in the affected side to induce drug-induced ptosis. Post-paralytic syndrome develops 4-6 months after facial nerve injury. At this stage, administration of BTA is also an effective procedure; in this case, drug injections are performed on the affected side at small doses and symmetrically on the healthy side at doses doubling those for the affected side. BTA injections are mandatory in complex treatment of facial muscle paralysis.

© 2018 GEOTAR Media. All rights reserved. Aim. Study of the remote results free flaps usage in treatment of patients with the late radiation injuries complicated by tibial bone osteomyelitis. Material and methods. Our work is based on a retrospective study of treatment of eight patients with late radiation tissue injuries and chronic osteomyelitis of the tibia. In them we performed 9 operations using free, vascularized flaps. According to RTOG/EORTC Late Radiation Morbidity Scoring Scheme, skin lesions corresponded to grade IV, bone damage – grade II–III. In the zone of the late radiation injuries, the lesion of the cortical plate of the tibia was detected in 5 patients, a lesion that occurred more than a third of the tibial circumference – in 3 patients. 6 patients had cicatricial osteomyelitis form, and 2 had osteomyelitis with the inclusion of a chronic draining fistula. Late radiation ulcer was emerged in all patients after previous radiotherapy in a total dose of 40 to 60 Gy for different types of neoplasms. For 7 patients, the timing of the previous radiotherapy ranged from 5 to 19 years before the appearance of a late radiation tissue injury. Three patients received radiotherapy in childhood. In one patient, with posttraumatic osteomyelitis of the tibia, in remission, squamous cell carcinoma was diagnosed. Patients underwent radiation therapy in a total dose of 60 Gy. Later it was associated a radiation ulcer with open defects of the tibia. The objectives of surgical treatment included the preservation of the limb, adequate surgical debridement and the replacement of the tissues defect. The surgical technique included a radical resection of the affected areas of the bone tissue. To fill dead space, a musculo-fasciocutaneous thoracodorsal flap was used in all paients. In 2 out of 3 patients with localized form of osteomyelitis, the autograft complex, supplementary to the thoracodorsal component, included additionally a fragment of the anterior serratus muscle for tamponade of the osteomyelitis cavity. For one patient with localized osteomyelitis, a tamponade method of the post osteomyelitis bone defects included use of the distal part of the fragment of the latissimus muscle flap. 1 patient originally addressed concerning a late radiation ulcer on the back surface of a crus without involvement of bone structures. Two years after elimination of cicatricial and ulcer defect the torakodorsal skin and muscular flap, created a late radiation ulcer on the forward surface of a shin with defeat of a cortical plate of a tibial bone. Discussion. Fundamental difference of patients with local radiation injury from patients with traumatic osteomyelitis and investing tissue extensive defects is the feature of a course of wound process against the background of the progressing depression of a reparation both in the focus, and in surrounding tissues with lack of a clear boundary defeat. Morphological basis of local late radiation defeat are permanent damages of blood and lymphatic vessels with tissue fibrosis progressing. In the conditions of local reserve opportunities decrease, free revascularised flaps application, with one's own axial blood supply, allows to save an extremity, to receive the best immediate and long-term results of tissues defects elimination in the irradiated zone. It can be confirmed with the fact that directly under the replaced skin and muscular revascularised flap the covered functional structures purulent defeat stopped and patients achieved osteomyelitic process permanent remission. Results. In all observations the full flap engraftment has received. All patients have achieved osteomiyelitic process remission. Conclusions. The radical debridement of the affected zones, followed by the filling of the bone defect with muscle tissue and the defect elimination of the tissues by the skin portion of the vascularized musculocutaneous autograft is the method of choice in the treatment of patients with local post radiation injuries, complicated by osteomyelitis of the tibia.

© 2018, © 2018 Informa UK Limited, trading as Taylor  &  Francis Group. The aim of our study was to determine a chemical composition of methanol extract of Galium verum as well as to assess its effects on functional recovery and redox status of isolated rat heart after ischemia. Rats were divided into control and G. verum group, which included animals treated with 500 mg/kg of methanol extract of G. verum for 28 days. Parameters of heart function and oxidative stress markers were estimated. Cell morphology was evaluated by hematoxylin and eosin (HE) staining. Our results demonstrated for the first time that G. verum extract preserved cardiac contractility, systolic, and diastolic function as wells as structural damage of the heart after ischemia. Furthermore, G. verum extract modulated the activity of antioxidant enzymes and alleviated the production of pro-oxidants.

© 2018, Media Sphera Publishing Group. All rights reserved. The objective of the present study was the development of the additional forensic medical criteria for the diagnostics of the intravitality and prescription of the burning injury making use of the morphological changes in the cerebellar cortex. A total of 82 cases of the death from the second- and third a, b-degree flame burns in 63 men and 19 women at the age from 20 to 65 years were available for the analysis. The condition of the cerebellar cortex was evaluated within 0 to 72 hours after the trauma had been inflicted. The routine histological staining technique using hematoxylin and eosin were employed as well as the Nisslin staining carried out in the combination with the immunohistochemical reaction based on the application of the antibodies against the glial fibrillary acidic protein (GFAP). In the case of death during the acute period after the burning injury, the histological study revealed a characteristic complex of the morphological features including the acute swelling of neurons, the increasing expansion of perivascular and pericellular spaces, as swell as hyperoxyphilia of microglia. The astrocytes of cortical II—III layers proved highly sensitive to tissue hypoxia as appears from their reaction with anti-GFAP antibodies. It is concluded that the results of the evaluation of the blood supply of the cerebral hemisphere cortex with the use of immunohistochemical methods may be helpful as the additional criteria for the purpose of forensic medical documentation of intravitality and prescription of the burning injury.

© 2018 Media Sphera Publishing Group. All rights reserved. The objective of the present study was to elucidate the characteristic features of the injuries inflicted to the victims of a road traffic accident inside the passenger compartment of a moving car equipped with the modern personal safety systems. The materials available for the present work included the lesions documented in 210 drivers and 150 occupants of the car passenger compartments. Both comparative, morphometric and statistical methods were used to analyze the data obtained. The morphometric analysis included identification of the form of the injury, such as extravasation, wounds, fractures, and lesions of the internal organs (e.g. hemorrhages, ruptures, etc.), their number and localization. Special attention was given to the specific features of the injuries to the occupants of the cars equipped with the modern personal safety systems. The study has demonstrated that the form, frequency, and localization of the injuries inflicted to the victims of a road traffic accident inside the passenger car compartment (including the drivers and other occupants) can be used for determining the positions of the victims at the moment of the accident.

© 2018 Media Sphera Publishing Group. All rights reserved. The objective of the present study was to develop the diagnostic criteria for determining the positions of the participants of a road traffic accident inside the passenger car compartment based on the analysis of the characteristic features of vertebral lesions in the victims. The archival documents of forensic medical expertises were used to analyze the specific characteristics of fractured cervical vertebra in the victims of the accident inside the passenger car compartments including the drivers (n=92), the occupants of the forward (n=43) and rear (n=37) seats of the car. Localization and mechanisms behind the formation of vertebral lesions in the cervical part of the spinal column associated with the intra-compartment injury is of primary importance for the diagnostic purposes. The character of an injury to the cervical region gives evidence of the position of the driver and the occupants of the car inside the passenge r compartment at the moment of the accident. Injuries to the cervical, thoracic, and/or sacral vertebrae may be indicative of the seat (either driver's, forward or rear) occupied by the victim(s). The fractures of the sacral part of the vertebral column are of negligible value for the differential diagnostics between the positions of the driver and/or other victims because they equally frequently occur in the drivers and occupants of both the forward and rear seats. Nevertheless, the proposed criteria made it possible to construct the mathematical model in the form of the logistic regression equations and to use them for making the probabilistic predictions as regards the positions of the participants of a road traffic accident inside the passenger car compartment based on the selected combination of pathomorphological characteristics in the victims.

© 2018 The Authors Recent years have witnessed the development of an enormous variety of hydrogel-based systems for neuroregeneration. Formed from hydrophilic polymers and comprised of up to 90% of water, these three-dimensional networks are promising tools for brain tissue regeneration. They can assist structural and functional restoration of damaged tissues by providing mechanical support and navigating cell fate. Hydrogels also show the potential for brain injury therapy due to their broadly tunable physical, chemical, and biological properties. Hydrogel polymers, which have been extensively implemented in recent brain injury repair studies, include hyaluronic acid, collagen type I, alginate, chitosan, methylcellulose, Matrigel, fibrin, gellan gum, self-assembling peptides and proteins, poly(ethylene glycol), methacrylates, and methacrylamides. When viewed as tools for neuroregeneration, hydrogels can be divided into: (1) hydrogels suitable for brain injury therapy, (2) hydrogels that do not meet basic therapeutic requirements and (3) promising hydrogels which meet the criteria for further investigations. Our analysis shows that fibrin, collagen I and self-assembling peptide-based hydrogels display very attractive properties for neuroregeneration.

© 2018 Media Sphera Publishing Group. All rights reserved. The objective of the present study was the comprehensive investigation of morphogenesis of the surface relief of the major local ruptures of the liver in the case of a blunt injury and the obtaining of an additional information on the possibility to use these data for the purposes of forensic medical expertise. We explored the reliefs of the major local ruptures of the liver in the cases of a single fatal blunt injury inflicted in a traffic accident, by kicking or a powerful stroke with the fist. In addition, the threshold hepatic lesions depending on their severity were determined experimentally. The model allowing to describe the qualitative relief alterations of the rupture surface associated with a blunt injury has been developed. The main elements of the surface relief of the major ruptures include avulsion and shear ridges, folds as well as «extension zones». Three types of possible rupture surface reliefs have been identified, viz. relatively uniform, stratified and fragmented non-uniform ones. Such reliefs are formed in the case of a threshold injury, powerful stroke with the leg or the fist, and road traffic accident, respectively. The location of the shear ridges at the ruptured surface makes it possible to determine the direction of growth of the local major rupture and of the stroke vector. The presence of multiple «extension zones» at the surface of the local major rupture may serve as an indicator either of the influence of the unlimited traumatic surface or of the very strong stroke. The above features of the relief of the rupture surface provide the conditions for the application of the statistical approach to the elucidation of the mechanisms underlying the deformation and the destruction of the parenchymatous organs suffering a blunt injury.