Russian Journal of Transplantology and Artificial Organs最新文献

{"title":"Intraperitoneal injection of cell-engineered pancreas in rats with experimental type i diabetes (preliminary results)","authors":"A. S. Ponomareva, N. Baranova, A. Nikolskaya, L. A. Kirsanova, N. Onishchenko, Z. Z. Gonikova, G. N. Bubentsova, Е. A. Volkova, Y. Basok, V. Sevastianov","doi":"10.15825/1995-1191-2023-2-107-117","DOIUrl":"https://doi.org/10.15825/1995-1191-2023-2-107-117","url":null,"abstract":"Creation of a bioartificial pancreas, including a cell-engineered construct (CEC) formed from pancreatic islets (islets of Langerhans) and a biocompatible matrix mimicking the native microenvironment of pancreatic tissue, is one of the approaches to the treatment of type 1 diabetes mellitus (T1D).Objective: to conduct preliminary in vivo studies of the functional efficacy of intraperitoneal injection of a cell-engineered pancreatic endocrine construct and a suspension of rat pancreatic islets in an experimental T1D model.Materials and methods. Tissue-specific scaffold was obtained by decellularization of human pancreatic fragments. The viability and functional activity of rat islets isolated with collagenase were determined. Experimental T1D was modeled by intraperitoneal injection of low-dose streptozotocin and incomplete Freund’s adjuvant into rats. The rats were intraperitoneally injected twice with pancreatic CEC (n = 2) or islet suspension (n = 1). Glucose levels in the blood and urine of the rats were assessed. Histological examination of organs (pancreas and kidneys) of the experimental animals was carried out.Results. After the first injection, blood glucose levels gradually decreased in all animals by more than 47% of the initial values; by follow-up day 24, the glucose level rose to the initial hyperglycemic values. After repeated administration, a 63.4% decrease in glycemic level was observed in the rats with pancreatic CEC and a 47.5% decrease in the one with islet suspension. At week 5 of the experiment, blood glucose levels gradually increased in all animals. At the same time, the glycemic index of the rat with injected pancreatic CEC was 62% lower than the glycemic index of the rat with injected islets.Conclusion. Allogeneic pancreatic islets in pancreatic CEC increase the duration of stable glycemic level in T1D rats.","PeriodicalId":21400,"journal":{"name":"Russian Journal of Transplantology and Artificial Organs","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88347986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Physical rehabilitation in pediatric organ recipients","authors":"Т.Ю. Шелехова, О.М. Цирульникова, И.А. Лазарева, О.Е. Гичкун, Е.Е. Задябина, А.А. Шитова, T. Shelekhova, O. Tsirulnikova, I. A. Lazareva, O. Gichkun, E. E. Zadyabina, A. A. Shitova","doi":"10.15825/1995-1191-2023-3-50-56","DOIUrl":"https://doi.org/10.15825/1995-1191-2023-3-50-56","url":null,"abstract":"The paper analyzes the literature on physical rehabilitation in transplantology. The medical and social aspects of rehabilitation and peculiarities of physical rehabilitation in child organ recipients are reflected. A rise in the number of organ recipients, including children, is noted. The role of physical rehabilitation in increasing the body’s adaptive reserves at the pre- and postoperative stage and improving the quality of life is described.","PeriodicalId":21400,"journal":{"name":"Russian Journal of Transplantology and Artificial Organs","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139360424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Complex use of perfusion techniques in kidney transplantation from a donor with out-of-hospital cardiac arrest (clinical case)","authors":"A. Shabunin, M. Minina, P. Drozdov, I. Miloserdov, D. A. Saydulaev, V. M. Sevostyanov, E. A. Tenchurina","doi":"10.15825/1995-1191-2023-3-113-121","DOIUrl":"https://doi.org/10.15825/1995-1191-2023-3-113-121","url":null,"abstract":"Objective: to present the successful experience with a donor with out-of-hospital cardiac arrest (OHCA) in whom a set of modern perfusion techniques was used to obtain kidneys suitable for transplantation.Materials and methods. Automatic chest compression was resumed in an OHCA donor (after biological death has been confirmed in the hospital) to maintain minimal perfusion under mechanical ventilation with 100% FiO2. With femoral vein cannulation, an extracorporeal circuit with a centrifuge pump and oxygenator was connected and abdominal normothermic regional perfusion was initiated. After 215 minutes, kidney was explanted under normothermic machine perfusion. Next, the left kidney was placed in the LifePort Kidney Transporter for hypothermic machine perfusion of donor kidneys. Perfusion time was 285 minutes. The right kidney was transplanted without additional ex-vivo perfusion.Results. Due to the complex use of perfusion techniques both in the donor body and ex-vivo, donor kidneys, after OHCA, with a total warm ischemia time of 110 minutes, were transplanted to recipients with good results. In the postoperative period, there was delayed function of the left and right renal grafts. The patients were discharged in a satisfactory condition under outpatient follow-up.Conclusion. The possibility and efficiency of organ donation after OHCA, facilitated by modern perfusion techniques and devices, open up a new perspective in addressing the organ shortage crisis.","PeriodicalId":21400,"journal":{"name":"Russian Journal of Transplantology and Artificial Organs","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139360957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experience of outpatient follow-up of heart transplant recipients at Shumakov center","authors":"I. I. Muminov, N. Koloskova, V. Poptsov, V. M. Zakharevich, N. Mozheiko, S. Sakhovsky, A. O. Shevchenko","doi":"10.15825/1995-1191-2023-3-68-75","DOIUrl":"https://doi.org/10.15825/1995-1191-2023-3-68-75","url":null,"abstract":"Heart transplantation (HT) is considered the optimal therapy for end-stage heart failure. In recent years, the number of operations performed has been growing, which has led to a rise in the number of heart transplant recipients requiring outpatient follow-up.Objective: to evaluate the effectiveness of the model of dual personalized follow-up of heart transplant recipients in the consultative and diagnostic department of Shumakov National Medical Research Center of Transplantology and Artificial Organs.Materials and methods. The study included 1,436 patients under outpatient follow-up from January 2008 to December 2022. Recipient data, results of laboratory and instrumental examination methods, nature and frequency of complications at different follow-up periods were analyzed.Results: At the time of discharge from the hospital, 98.7% of patients had received triple-drug immunosuppressive therapy; 6 months later, methylprednisolone was discontinued in 72.2% of recipients. Mean tacrolimus level during the 1-year follow-up was 8.7 ± 2.7 ng/mL; in the period from 1 to 5 years of followup, the mean was 5.1 ± 2.4 ng/mL. At year 1 after transplantation, 23 (1.7%) recipients had been converted to everolimus; by the end of year 5 of follow-up, the number had increased to 8.6%. The most frequently detected complications during outpatient follow-up were: hypertension (48.65%), post-transplant diabetes mellitus (7.24%), nephropathy (35.97%), and malignant neoplasms (4.2%). Recipient survival, excluding in-hospital mortality, was 96.5%; and 88.0% at year 1 and 5 of follow-up, respectively.Conclusion: The dual personalized approach model for outpatient follow-up and treatment of heart transplant recipients will improve recipient survival and quality of life in the long-term post-HT period.","PeriodicalId":21400,"journal":{"name":"Russian Journal of Transplantology and Artificial Organs","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139361553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aortic valve replacement after previous TAVI","authors":"D. A. Titov, M. N. Sorkomov, D. Pursanova, M. I. Fedoseykina, S. Babenko, R. Muratov","doi":"10.15825/1995-1191-2023-3-129-138","DOIUrl":"https://doi.org/10.15825/1995-1191-2023-3-129-138","url":null,"abstract":"Endovascular surgery for aortic valve defects has proven itself well in elderly patients with severe comorbidities competing with the underlying disease. However, the risk of dysfunction resulting from structural degeneration of bioprosthetic heart valve and prosthetic valve endocarditis remains high. Repeated surgeries are associated with complications, but open surgery is the only method of treatment in this group of patients.Objective: to describe a series of reinterventions for prosthetic valve dysfunction occurring after TAVI.Material and methods. From 2015 to 2022, at the Department of Emergency Surgery for Acquired Heart Diseases (Head, Professor R.M. Muratov), Bakulev Research Center for Cardiovascular Surgery, 6 reoperations were performed in patients who had previously undergone transcatheter aortic valve implantation (TAVI). The average age of patients at the time of TAVI and at the time of reoperation was 70.6 years (62–83) and 74.3 years (70–84), respectively. The EuroSCORE II predicted risk of mortality at the time of reintervention was 42.2% (21.7–87.6). The mean time to reoperation was 42 months. Indications for reoperation were early active prosthetic endocarditis (4 cases) and structural valve degeneration (2 cases).Results. At the hospital stage, 1 patient died of acute heart failure; the operation was performed for vital indications in conditions of extreme initial severity. In three patients, the early postoperative period was uneventful. One patient required intra-aortic balloon counterpulsation (IABP) due to heart failure, and 1 patient was implanted with permanent pacemaker. The average time of hospitalization was 14 days. Patients with active prosthetic endocarditis received a 6-week course of antibiotic therapy. The function of the implanted valves was satisfactory.Conclusions. Aortic valve replacement after previous TAVI is an emergency operation and represents the only way to treat valve dysfunction. Under active prosthetic endocarditis, timely surgery can save this patient cohort.","PeriodicalId":21400,"journal":{"name":"Russian Journal of Transplantology and Artificial Organs","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139362098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pediatric mechanical circulatory support: pathophysiology of pediatric hemostasis and postoperative management algorithms","authors":"N. Koloskova, T. A. Khalilulin, D. Ryabtsev, V. Poptsov","doi":"10.15825/1995-1191-2023-1-90-98","DOIUrl":"https://doi.org/10.15825/1995-1191-2023-1-90-98","url":null,"abstract":"Chronic heart failure (CHF) against the background of congenital heart disease, mostly in early childhood, or various forms of cardiomyopathies, more common in teenage age, represents an important cause of morbidity and mortality in the pediatric population [1, 2]. Due to the increase in the number of patients suffering from refractory end-stage CHF over the last two decades, and the current shortage of donor organs in pediatric practice, the issue of long-term mechanical circulatory support (MCS) is becoming increasingly a pressing problem. Patient management is a multidisciplinary task, since prolonged use of anticoagulant and antiplatelet therapy to prevent ventricular thrombosis has potentially life-threatening complications - acute hemorrhagic stroke and bleeding of varying severity.","PeriodicalId":21400,"journal":{"name":"Russian Journal of Transplantology and Artificial Organs","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87556495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biological and functional properties of human umbilical cord-derived lyophilized tissue-engineered matrices","authors":"A. A. Kondratenko, L. Kalyuzhnaya, D. Tovpeko, V. S. Sheveleva, R. Glushakov","doi":"10.15825/1995-1191-2023-1-113-122","DOIUrl":"https://doi.org/10.15825/1995-1191-2023-1-113-122","url":null,"abstract":"The use of tissue-engineered products (TEP) from decellularized extracellular matrix (dECM) to treat deep skin lesions is a tissue engineering method that promotes regenerative healing. Cell-free preparations reproduce the hierarchical complexity of tissues, mimic structural, biochemical and mechanical signals that are necessary to attract cells, and are a source of bioactive molecules. The human umbilical cord biomaterial has a fetal phenotype with extra-embryonic origin, and therefore is available and has no ethical limitations in its use. The tissue engineering laboratory at Kirov Military Medical Academy developed and patented a TEP from the highly regenerative human umbilical cord in the form of matrix and hydrogel matrix. To study its regenerative potential, lyophilisates of tissue-engineered solid-state and hydrogel matrices were implanted around mini pig fullthickness wounds in vivo. The external signs of inflammatory response and the histological images of biopsy specimens from the lyophilizate implantation areas were analyzed. The effect of nutrient media, «conditioned» with lyophilizates of both matrices, on the viability and migration activity of fibroblast-like cells, isolated from mini pig skin, was investigated. The matrix lyophilisates showed good biocompatibility and bioactivity in in vitro and in vivo experiments. Implantation of the samples promoted faster formation of mature epidermis compared to the control.","PeriodicalId":21400,"journal":{"name":"Russian Journal of Transplantology and Artificial Organs","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90298503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mid-term and long-term outcomes following heart transplantation with prolonged cold ischemia","authors":"A. Fomichev, V. Poptsov, D. Sirota, M. Zhulkov, A. Edemskiy, А. V. Protopopov, V. Y. Kliver, A. Skokova, A. Chernyavskiy, D. Khvan, K. Agayeva","doi":"10.15825/1995-1191-2023-1-99-105","DOIUrl":"https://doi.org/10.15825/1995-1191-2023-1-99-105","url":null,"abstract":"Objective: comparative analysis of long-term outcomes following heart transplantation (HT) with prolonged and short cold ischemia.Materials and methods. We analyzed the data of 29 orthotopic HT with >4 hours of cold ischemia. The transplant surgery was performed at Meshalkin National Medical Research Center between 2013 and the present time. Organs were obtained from donors from other regions. The control group consisted of 29 HTs with cold ischemia <4 hours, performed in the same period. The minimum distance between the transplant center and the donor base was about 250 km (Barnaul); the maximum distance was about 850 km (Krasnoyarsk). Recipient survival and postoperative peculiarities were analyzed.Results. In-hospital survival in the prolonged cold ischemia group was 89.7% (n = 26) with 3 deaths (10.3%). In the second group (<240 min), in-hospital survival was 79.3% (n = 23) with 6 (20.7%) deaths. The Kaplan-Meier survival analysis showed no difference between the groups (Log-Rank Test, P 1/4 0.59). In addition, cold ischemia time did not increase the risk of graft rejection and the risk of transplant coronary artery disease (TCAD).Conclusion. HT with cold ischemia >4 hours did not have worse outcomes than in short graft ischemia. This provides grounds for further accumulation of experience in the use of heart donors from remote locations.","PeriodicalId":21400,"journal":{"name":"Russian Journal of Transplantology and Artificial Organs","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91405214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experience with percutaneous right ventricular support in the early post-left ventricular assist device implantation period (clinical case report and literature reviews)","authors":"V. Poptsov, E. Spirina, D. Ryabtsev, A. K. Solodovnikova, A. S. Epremian","doi":"10.15825/1995-1191-2023-1-77-89","DOIUrl":"https://doi.org/10.15825/1995-1191-2023-1-77-89","url":null,"abstract":"Implantable left ventricular assist device (LVAD) is a state-of-the-art treatment for adults and children with end-stage heart failure. The early and late period after LVAD implantation can be severely complicated. Right ventricular failure (RVF) still remains a common complication after LVAD implantation. RVF is the cause of reduced post-implant survival. We suggest that an additional temporary or permanent right ventricular assist device (RVAD) is an effective treatment for LVAD-associated RVF. In this clinical case report, we describe the medical history of a pediatric patient (14 years old) with severe heart failure (PediMACS Level 1) against a background of dilated cardiomyopathy. The patient required peripheral venoarterial extracorporeal membrane oxygenation (VA-ECMO) prior to urgent LVAD (HM3) implantation. In the early post-LVAD implantation (1 POD) period, the patient presented with hemodynamic and echocardiographic events of acute RVF that was resistant to drug therapy (inotropic/vasopressor support, iNO) and required mechanical circulatory support (MCS) with a preoperatively implanted VA-ECMO. In the LVAD-associated RVF scenario, VA-ECMO as a means of total cardiac bypass is a non-physiological MCS method and, therefore, undesirable. In this clinical situation, our solution was to use a paracorporeal centrifugal blood pump for temporary right heart support. A RVAD was assembled using percutaneous cannulation in two sites and a modification of the pre-existing VA-ECMO circuit. For RVAD, we used an ECMO cannula previously installed through the femoral vein (26 F) and added a reverse venous cannula (22 F) through the right internal jugular vein into the pulmonary trunk. To facilitate the passage of the return cannula into the pulmonary artery, we used a contralateral sheath (6 F, 40 cm) and an Amplatz Super Stiff guidewire under radiological control. The oxygenator was removed from the circuit on day 2 of RVAD. Central hemodynamics (reduction in right atrial pressure (RAP) to 10 mm Hg, increase in pulmonary capillary wedge pressure (PCWP) to 14 mm Hg), as well as right ventricular (RV) and left ventricular (LV) volume characteristics all improved. These observations allowed us to optimize the performance of the implantable LVAD (increase in flow rate to 4.2 l/min or 2.1 l/min/m2). The duration of paracorporeal RVAD after LVAD implantation was 7 days with an average flow rate of 2.3 ± 0.2 l/min. Postoperative treatment in the intensive care unit (ICU) lasted for 15 days. The patient was discharged from the hospital on postoperative day 34.","PeriodicalId":21400,"journal":{"name":"Russian Journal of Transplantology and Artificial Organs","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88614269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of the quality of life of organ reoipients based on the results of the First Russian transplant games","authors":"","doi":"10.15825/1995-1191-2023-1-62-67","DOIUrl":"https://doi.org/10.15825/1995-1191-2023-1-62-67","url":null,"abstract":"Objective: to evaluate the role of physical activity (at sports games) in improving the quality of life of organ recipients.Materials and methods. We examined 42 adult lung, heart, kidney and liver recipients, and patients undergoing renal replacement therapy (mean age 42.6 ± 12.09 years) - participants of the First Russian Transplant Games. The results were analyzed. Quality of life of the recipients was assessed using the nonspecific SF-36 questionnaire.Results. After solid organ transplantation, the interviewed recipients answered that they try to lead an active lifestyle, to engage in accessible physical activities, and to participate in sports events intended for organ recipients. Assessment of the quality of life according to the SF-36 questionnaire showed that all the participants had high scores in terms of the physical and psychological component, which is associated with regular physical training and sports. Conclusion. Physical exercise and active participation in sports activities are an important component in the socialization and rehabilitation of organ recipients. These two factors also improve the psychological and physical components of the quality of life of the recipients.","PeriodicalId":21400,"journal":{"name":"Russian Journal of Transplantology and Artificial Organs","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74186155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}