84 results match your criteria: "National research cardiac surgery center[Affiliation]"

Despite the high progress that has been made in the field of cardiology, the left ventricular assist device (LVAD) can still cause complications (thrombosis/bleeding) in heart failure (HF) patients after implantation. Complications develop due to the incorrect dose of antithrombotic therapy, due to the influence of the non-physiological shear stress of the device, and also due to inherited genetic polymorphisms. Therefore, the aim of our study is to identify the influence of the genetic polymorphisms on complication development in HF patients with implanted LVADs with prescribed antiplatelet therapy.

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Rabbit heart bioartificial tissue: perfusion decellularization and characterization.

Biomed Phys Eng Express

December 2024

Nazarbayev University, School of Engineering and Digital Sciences, Department of Chemical and Materials Engineering, Astana, Kazakhstan.

Despite new approaches in the treatment of cardiovascular disease (CVD) such as percutaneous coronary intervention, coronary artery bypass graft, and left ventricular assist devices, which cannot fully compensate for the effectiveness of the original heart, heart transplantation still remains as the most effective solution. A growing body of literature recognizes the importance of developing a whole heart constructed from living tissues to provide an alternative option for patients suffering from diseases of the cardiovascular system. A potential solution that shows a promise is to generate cell-free, i.

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Familial hypercholesterolemia is an autosomal hereditary disease defined by an increased level of low-density lipoprotein cholesterol (LDL-C), which predisposes significant risks for premature cardiovascular disorders. We present a family trio study: proband, a 13-year-old Kazakh girl with homozygous familial hypercholesterolemia (HoFH) and her parents. HoFH is much more rare and severe than a heterozygous form of the disorder.

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In this article, we describe our first experiences implanting the AVEIR VR leadless pacemaker (Abbott) in Kazakhstani patients, a significant step in the development of this technology in Central Asia. This case series includes five male patients, with a range of symptoms (presyncope, dizziness and dyspnoea on exertion), ranging in age from 14 to 77 years; some individuals also had comorbidities, including atrioventricular block and AF. Indications for pacing were identified in each patient.

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Introduction: The reduction of fluoroscopic exposure during catheter ablation of supraventricular arrhythmias is widely adopted by experienced electrophysiology physicians with a relatively short learning curve and is becoming the standard of care in many parts of the world. While observational studies in the United States and some parts of Western Europe have evaluated the minimal fluoroscopic approach, there are scarce real-world data for this technique and the generalizability of outcomes in other economic regions.

Method: The AALARA study is a prospective, observational, multicenter, and multinational open-label study.

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Unlabelled: This study provides a comprehensive assessment of how urban-rural divides influence gut microbial diversity and composition across the distinct geographical landscapes of Kazakhstan, elucidating the intricate interplay between lifestyle, environment, and gut microbiome. In this prospective cohort study, we enrolled 651 participants from urban centers and rural settlements across Kazakhstan, following ethical approval and informed consent. Comprehensive demographic, dietary, and stool sample data were collected.

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A rare presentation of cardiac and hepatic hydatid cysts in a young female: a case report.

J Surg Case Rep

August 2024

Clinical and Academic Department of Surgery, CF "University Medical Center", Nazarbayev University, Astana 010000, Kazakhstan.

Hydatid disease is an endemic parasitic infection caused by the larval stages of the tapeworm . It is highly endemic in Kazakhstan, with both and widely distributed throughout the country. Hydatid disease can affect almost any organ in the body, with the liver and lung being the most common sites, while cardiac involvement is rare.

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Background: There is uncertainty regarding the best revascularization approach-whether coronary artery bypass grafting (CABG) or percutaneous coronary intervention (PCI)-for obese patients suffering from multi-vessel coronary artery disease.

Results: 406 patients with low and intermediate SYNTAX scores (SS) underwent PCI with drug-eluting stents (n = 200, 100 with SS ≤ 22, and 100 with SS 23-32) and CABG (n = 206, 100 with SS ≤ 22, and 106 with SS 23-32). Patients were also categorized by body mass index (BMI): normal weight (12%, 48 patients), overweight (41.

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Background: Hemodynamic forces (HDF) analysis has been proposed as a method to quantify intraventricular pressure gradients, however data on its reliability are still scanty. Thus, the aim of this study is to assess the reliability of HDF parameters derived from cardiac magnetic resonance (CMR).

Methods: CMR studies of 25 athletes were analysed by two independent observers and then re-analysed by the same observer one week apart.

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Objectives: The use of ventricular assist devices (VADs) in children is increasing. However, absolute numbers in individual centres and countries remain small. Collaborative efforts such as the Paedi-European Registry for Patients with Mechanical Circulatory Support (EUROMACS) are therefore essential for combining international experience with paediatric VADs.

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Article Synopsis
  • The study investigates how genetic variations in certain genes affect the metabolism and effects of the blood thinner dabigatran in patients with atrial fibrillation.
  • Using TaqMan technology, the research analyzed genotypes from 150 patients and found significant differences in dabigatran concentrations based on specific gene polymorphisms.
  • The findings suggest that polymorphisms rs8192935 and rs2244613 influence dabigatran's pharmacodynamics and pharmacokinetics, particularly in the Kazakh population.
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The usage of cardiopulmonary bypass (CPB) in cardiothoracic surgery contributes to the activation of the inflammatory response. In certain cases, the systemic inflammatory response may be immoderate, leading to organ dysfunction, such as acute renal failure or multiorgan dysfunction. This study aimed to examine the effect of haemoadsorption (HA) therapy on inflammatory markers and renal damage indices during cardiopulmonary bypass and in the early postoperative period.

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Article Synopsis
  • * This review focuses on the pharmacokinetics, pharmacodynamics, and genetic factors (such as gene polymorphisms) that influence the effectiveness and safety of DOACs, analyzing data from various databases and studies.
  • * Findings suggest that genetic variations affect how individuals metabolize DOACs, which could lead to personalized treatment plans to reduce complications; however, further large-scale studies are needed to better define dosing
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Gut Microbiome and Cytokine Profiles in Post-COVID Syndrome.

Viruses

May 2024

Laboratory of Microbiome, Center for Life Sciences, National Laboratory Astana, Nazarbayev University, Astana 010000, Kazakhstan.

Recent studies highlight the crucial role of the gut microbiome in post-infectious complications, especially in patients recovering from severe COVID-19. Our research aimed to explore the connection between gut microbiome changes and the cytokine profile of patients with post-COVID syndrome. Using 16S rRNA amplicon sequencing, we analyzed the composition of the gut microbiome in 60 COVID-19 patients over the course of one year.

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Oral Microbiome Stamp in Alzheimer's Disease.

Pathogens

February 2024

Center for Life Sciences, National Laboratory Astana, Nazarbayev University, Astana Z05H0P9, Kazakhstan.

Recent studies have suggested that periodontal disease and alterations in the oral microbiome may be associated with cognitive decline and Alzheimer's disease (AD) development. Here, we report a case-control study of oral microbiota diversity in AD patients compared to healthy seniors from Central Asia. We have characterized the bacterial taxonomic composition of the oral microbiome from AD patients (n = 64) compared to the healthy group (n = 71) using 16S ribosomal RNA sequencing.

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Introduction: In Kazakhstan, a country of 19 million residents, more than 100,000 patients need palliative care. Since at least one family member is usually involved in the care of a terminal patient, more than 200,000 people would benefit from high-quality palliative care services in the country. However, with only 45 physicians and 101 nurses attending to 1925 palliative beds, Kazakhstan seeks to develop palliative services that meet the national needs in resource-limited settings and international standards.

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Background: Left ventricular assist device (LVAD) candidates are at increased risk of immune dysregulation and infectious complications. To attenuate the elevated proinflammatory cytokine levels and associated adverse clinical outcomes, it has been postulated that extracorporeal blood purification could improve the overall survival rate and morbidity of patients undergoing LVAD implantation.

Methods: We retrospectively reviewed prospectively collected data of 15 patients who underwent LVAD implantation at our center between January 2021 and March 2022.

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According to the Global Burden of Disease (GBD) study, chronic kidney disease (CKD) was prevalent in 697.5 million individuals worldwide in 2017. By 2040, it is anticipated that CKD will rank as the fifth most common cause of death.

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Background: Patients with chronic thromboembolic pulmonary hypertension (CTEPH) in countries with limited resources have, to date, been poorly represented in registries.

Objective: This work assesses the epidemiology, diagnosis, hemodynamic and functional parameters, and treatment of CTEPH in Russia, Kazakhstan, Turkey, Lebanon, and Saudi Arabia.

Methods: A prospective, cohort, phase IV, observational registry with 3-year follow-up (n = 212) in patients aged ≥ 18 years diagnosed with CTEPH was created.

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The article focuses on the prevalence of circulatory diseases, organization and implementation of new programs in the system of cardiological care services in the Republic of Kazakhstan. Currently, three key programs are functioning at the republican level: "Acute coronary syndrome", "Chronic heart failure", and "Atherosclerosis and dyslipoproteinemia". The National Scientific Cardiac Surgery Center (Astana) is the coordinator of all these programs.

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Background: Physical activity contributes to changes in cardiac morphology, which are known as "athlete's heart". Therefore, these modifications can be characterized using different imaging modalities such as echocardiography, including Doppler (flow Doppler and Doppler myocardial imaging) and speckle-tracking, along with cardiac magnetic resonance, and cardiac computed tomography.

Main Text: Echocardiography is the most common method for assessing cardiac structure and function in athletes due to its availability, repeatability, versatility, and low cost.

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Left ventricular assist device (LVAD) implantation is one of the mechanical circulatory support (MCS) treatments for advanced heart failure (HF) patients. MCS has emerged as a lifesaving therapy that improves patients' quality of life. However, MCS remains limited by a paradoxical coagulopathy accompanied by thrombosis and bleeding.

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Objective: Cardiac surgery with cardiopulmonary bypass (CPB) is associated with hypofibrinogenemia and severe bleeding requiring transfusion. Guidelines recommend cryoprecipitate or fibrinogen concentrate (FC) for the treatment of acquired hypofibrinogenemia. This study compared cryoprecipitate and FC for the correction of acquired hypofibrinogenemia and the associated costs.

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Approximately 40 million people in need of palliative care worldwide, while 80% of them live in low- and middle-income countries. Kazakhstan, a low-to middle-income country with a reforming healthcare system, is committed to improving quality and accessibility of care for its 100,000 terminal patients in need of palliative care. To join the group of countries where palliative care is available, accessible, and affordable, Kazakhstan must integrate palliative services into the mainstream healthcare system at all levels, from primary healthcare to hospices, and from major cities to remote villages.

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