Adverse right ventricular (RV) remodeling leads to ventricular dysfunction and failure that repre... more Adverse right ventricular (RV) remodeling leads to ventricular dysfunction and failure that represents an important determinant of outcome in patients with pulmonary hypertension (PH). Recent evidence indicates that inflammatory activation contributes to the pathogenesis of adverse RV remodeling and dysfunction. It has been shown that accumulation of inflammatory cells such as macrophages and mast cells in the right ventricle is associated with maladaptive RV remodeling. In addition, inhibition of inflammation in animal models of RV failure ameliorated RV structural and functional impairment. Furthermore, a number of circulating inflammatory mediators have been demonstrated to be associated with RV performance. This work reviews the role of inflammation in RV remodeling and dysfunction and discusses antiinflammatory strategies that may attenuate adverse structural alterations while promoting improvement of RV function.
СОСТАВ КОМИТЕТА ЭКСПЕРТОВ ПО РАЗРАБОТКЕ РЕКОМЕНДАЦИЙ Рабочая группа по подготовке текста рекоменд... more СОСТАВ КОМИТЕТА ЭКСПЕРТОВ ПО РАЗРАБОТКЕ РЕКОМЕНДАЦИЙ Рабочая группа по подготовке текста рекомендаций Председатель -академик РАН Чазова И.Е. (Москва), сопредседатель -академик РАН Шестакова М.В. (Москва), секретарь -д.м.н. Жернакова Ю.В. (Москва), к.м.н. Блинова Н.В. (Москва), д.м.н. Маркова Т.Н. (Москва), к.м.н. Мазурина Н.В. (Москва), д.м.н. Ежов М.В. (Москва), проф. Терещенко С.Н. (Москва), д.м.н. Жиров И.В. (Москва), д.м.н. Комаров А.Л. (Москва), к.м.н. Миронова О.Ю. (Москва), к.м.н. Юричева Ю.А. (Москва), к.м.н. Сухарева О.Ю. (Москва) Комитет экспертов: проф. Кисляк О.А. (Москва), проф. Мкртумян А.М. (Москва), проф. Подзолков В.И (Москва), проф. Азизов В.А. (Баку), проф. Зелвеян П.А. (Ереван), проф. Григоренко Е.А. (Минск), проф. Рахимов З.Я. (Душанбе), проф. Сарыбаев А.Ш. (Бишкек), к.м.н. Касымова С.Д. (Душанбе), к.м.н. Нарзуллаева А.Р. (Душанбе) Все члены рабочей группы внесли одинаковый вклад в этот документ.
SUMMERY It is estimated, that more than 140 million people reside at altitudes above 2500 m in 35... more SUMMERY It is estimated, that more than 140 million people reside at altitudes above 2500 m in 35 countries worldwide. High altitude residents display moderate erythrocytosis and mild-to-moderate elevation in pulmonary artery pressure. Howevere, in some indivudals, severe pulmonary hypertension develop with ensuing right ventricular hypertrophy and failure and thus representing a major public health problem in mountainous regions around the world. In this review, we discuss the history of discovery, clinical findings, diagnostic, treatment and prevention of the disease. Key words: hypoxia, high altitude, pulmonary artery pressure, pulmonary hypertension, right ventricular hypertrophy.
Pulmonary hypertension (PH) is a pathological condition with multifactorial etiology, which is ch... more Pulmonary hypertension (PH) is a pathological condition with multifactorial etiology, which is characterized by elevated pulmonary arterial pressure and pulmonary vascular remodeling. The underlying pathogenetic mechanisms remain poorly understood. Accumulating clinical evidence suggests that circulating osteopontin may serve as a biomarker of PH progression, severity, and prognosis, as well as an indicator of maladaptive right ventricular remodeling and dysfunction. Moreover, preclinical studies in rodent models have implicated osteopontin in PH pathogenesis. Osteopontin modulates a plethora of cellular processes within the pulmonary vasculature, including cell proliferation, migration, apoptosis, extracellular matrix synthesis, and inflammation via binding to various receptors such as integrins and CD44. In this article, we provide a comprehensive overview of the current understanding of osteopontin regulation and its impact on pulmonary vascular remodeling, as well as consider re...
The matricellular protein osteopontin modulates cell–matrix interactions during tissue injury and... more The matricellular protein osteopontin modulates cell–matrix interactions during tissue injury and healing. A complex multidomain structure of osteopontin enables it not only to bind diverse cell receptors but also to interact with various partners, including other extracellular matrix proteins, cytokines, and growth factors. Numerous studies have implicated osteopontin in the development and progression of myocardial remodeling in diverse cardiac diseases. Osteopontin influences myocardial remodeling by regulating extracellular matrix production, the activity of matrix metalloproteinases and various growth factors, inflammatory cell recruitment, myofibroblast differentiation, cardiomyocyte apoptosis, and myocardial vascularization. The exploitation of osteopontin loss- and gain-of-function approaches in rodent models provided an opportunity for assessment of the cell- and disease-specific contribution of osteopontin to myocardial remodeling. In this review, we summarize the recent k...
BACKGROUND. There is enough evidence of the negative impact of excess weight on the formation and... more BACKGROUND. There is enough evidence of the negative impact of excess weight on the formation and progression of res piratory pathology. Given the continuing SARS-CoV-2 pandemic, it is relevant to determine the relationship between body mass index (BMI) and the clinical features of the novel coronavirus infection (NCI).AIM. To study the effect of BMI on the course of the acute SARS-COV-2 infection and the post-covid period.MATERIALS AND METHODS. AKTIV and AKTIV 2 are multicenter non-interventional real-world registers. The АКТИВ registry (n=6396) includes non-overlapping outpatient and inpatient arms with 6 visits in each. The АКТИВ 2 registry (n=2968) collected the data of hospitalized patients and included 3 visits. All subjects were divided into 3 groups: not overweight (n=2139), overweight (n=2931) and obese (n=2666).RESULTS. A higher BMI was significantly associated with a more severe course of the infection in the form of acute kidney injury (p=0.018), cytok...
The role of microparticles (MPs) and cold in high altitude pulmonary hypertension (HAPH) remains ... more The role of microparticles (MPs) and cold in high altitude pulmonary hypertension (HAPH) remains unexplored. We investigated the impact of long-term cold exposure on the pulmonary circulation in lowlanders and high-altitude natives and the role of MPs. Pulmonary hemodynamics were evaluated using Doppler echocardiography at the end of the colder and warmer seasons. We further examined the miRNA content of MPs isolated from the study participants and studied their effects on human pulmonary artery smooth muscle (hPASMCs) and endothelial cells (hPAECs). Long-term exposure to cold environment was associated with an enhanced pulmonary artery pressure in highlanders. Plasma levels of CD62E-positive and CD68-positive MPs increased in response to cold in lowlanders and HAPH highlanders. The miRNA-210 expression contained in MPs differentially changed in response to cold in lowlanders and highlanders. MPs isolated from lowlanders and highlanders increased proliferation and reduced apoptosis ...
COVID-19 -тяжелое инфекционное заболевание с высоким риском летального исхода. Представление о бо... more COVID-19 -тяжелое инфекционное заболевание с высоким риском летального исхода. Представление о болезни во многом сформировано на основании крупных регистров, выполненных в США, Испании, Италии, КНР. Однако к настоящему времени нет данных по особенностям протекания болезни у пациентов евроазиатского региона. В связи с этим был создан международный регистр, расчетная мощность которого составляет 5000 пациентов, "Анализ динамики Коморбидных заболеваний у пациенТов, перенесшИх инфицироВание SARS-CoV-2" (AКТИВ SARS-CoV-2), работа в котором объединила специалистов Российской Федерации, Республики Армения, Республики Казахстан и Кыргызской Республики. В статье представлен первый анализ регистра, который включил данные 1003 пациентов. Показано, что самым значимым отличием евроазиатской популяции пациентов оказалось гораздо большее влияние полиморбидности на риск летального исхода в сравнении с другими регистрами, а также более выраженное влияние на риск летального исхода в евроазиатской популяции таких заболеваний, как сахарный диабет, ожирение, артериальная гипертензия, хроническая болезнь почек и возраста старше 60 лет.
Background: Acute hypoxia exposure is associated with an elevation of pulmonary artery pressure (... more Background: Acute hypoxia exposure is associated with an elevation of pulmonary artery pressure (PAP), resulting in an increased hemodynamic load on the right ventricle (RV). In addition, hypoxia may exert direct effects on the RV. However, the RV responses to such challenges are not fully characterized. The aim of this systematic review was to describe the effects of acute hypoxia on the RV in healthy lowland adults.Methods: We systematically reviewed PubMed and Web of Science and article references from 2005 until May 2021 for prospective studies evaluating echocardiographic RV function and morphology in healthy lowland adults at sea level and upon exposure to simulated altitude or high-altitude.Results: We included 37 studies in this systematic review, 12 of which used simulated altitude and 25 were conducted in high-altitude field conditions. Eligible studies reported at least one of the RV variables, which were all based on transthoracic echocardiography assessing RV systolic a...
Aim.To study the clinical course specifics of coronavirus disease 2019 (COVID-19) and comorbid co... more Aim.To study the clinical course specifics of coronavirus disease 2019 (COVID-19) and comorbid conditions in COVID-19 survivors 3, 6, 12 months after recovery in the Eurasian region according to the AKTIV register.Material and methods.The AKTIV register was created at the initiative of the Eurasian Association of Therapists. The AKTIV register is divided into 2 parts: AKTIV 1 and AKTIV 2. The AKTIV 1 register currently includes 6300 patients, while in AKTIV 2 — 2770. Patients diagnosed with COVID-19 receiving in- and outpatient treatment have been anonymously included on the registry. The following 7 countries participated in the register: Russian Federation, Republic of Armenia, Republic of Belarus, Republic of Kazakhstan, Kyrgyz Republic, Republic of Moldova, Republic of Uzbekistan. This closed multicenter register with two nonoverlapping branches (in- and outpatient branch) provides 6 visits: 3 in-person visits during the acute period and 3 telephone calls after 3, 6, 12 months. ...
Introduction: High altitude (HA) exposure causes substantial increase in pulmonary artery pressur... more Introduction: High altitude (HA) exposure causes substantial increase in pulmonary artery pressure (PAP) and resistance. However, the effects of HA hypoxia exposure on cardiac function remain incompletely understood. Studies evaluating interethnic differences in cardiac functions in response to HA exposure are lacking. We aimed to compare the cardiac performance in Indian versus Kyrgyz healthy lowland subjects over the course of a 3-week HA exposure at 4,111 m. Methodology: Ten Indians and 20 Kyrgyz subjects were studied to assess cardiac acclimatization noninvasively by echocardiography in two different ethnic groups for 3 weeks of stay at HA. Pulmonary hemodynamics, right and left ventricular functions were evaluated at basal and on days 3, 7, 14, and 21 of HA exposure and on day 3 of deinduction. Results: HA exposure significantly increased PAP, pulmonary vascular resistance, cardiac output (CO), and heart rates (HRs) in both groups. Tricuspid regurgitant gradient increased significantly in both the group at day 3 versus basal; 38.9 mmHg (31.8, 42.9) versus 21.9 mmHg (19.5, 22.6) in Kyrgyz; and 34.1 mmHg (30.2, 38.5) versus 20.4 mmHg (19.7, 21.3) in Indians. HR increased significantly in Indians at day 3 and 7, whereas in Kyrgyz throughout exposure. CO increased significantly in both groups at day 3 versus basal with 5.9 L/min (5.5, 6.4) versus 5.1 L/min (4.4, 5.9) in Kyrgyz, and 5.7 L/min (5.56, 5.98) versus 4.9 L/min (4.1, 5.3) in Indians. Both groups exhibited preserved right ventricular diastolic and systolic functions at HAs. HA exposure changed the left ventricular diastolic parameters only in Kyrgyz subjects with impaired mitral inflow E/A, but not in Indian subjects. All cardiac changes induced at HAs have been recovered fully upon deinduction in both, except lateral-septal A¢, which remained low in Indians. Conclusion: Although pulmonary hemodynamics responses were similar in both groups, there were differences in cardiac functional parameters between the two in response to HA exposure that may be accounted to ethnic variation.
International Journal of Environmental Research and Public Health, 2021
Right ventricular (RV) function is the main determinant of the outcome of patients with pulmonary... more Right ventricular (RV) function is the main determinant of the outcome of patients with pulmonary hypertension (PH). RV dysfunction develops gradually and worsens progressively over the course of PH, resulting in RV failure and premature death. Currently, approved therapies for the treatment of left ventricular failure are not established for the RV. Furthermore, the direct effects of specific vasoactive drugs for treatment of pulmonary arterial hypertension (PAH, Group 1 of PH) on RV are not fully investigated. Pulmonary artery banding (PAB) allows to study the pathogenesis of RV failure solely, thereby testing potential therapies independently of pulmonary vascular changes. This review aims to discuss recent studies of the mechanisms of RV remodeling and RV-directed therapies based on the PAB model.
Aim To study the effect of regular drug therapy for cardiovascular and other diseases precedi... more Aim To study the effect of regular drug therapy for cardiovascular and other diseases preceding the COVID-19 infection on severity and outcome of COVID-19 based on data of the ACTIVE (Analysis of dynamics of Comorbidities in paTIents who surVived SARS-CoV-2 infEction) registry.Material and methods The ACTIVE registry was created at the initiative of the Eurasian Association of Therapists. The registry includes 5 808 male and female patients diagnosed with COVID-19 treated in a hospital or at home with a due protection of patients’ privacy (data of nasal and throat smears; antibody titer; typical CT imaging features). The register territory included 7 countries: the Russian Federation, the Republic of Armenia, the Republic of Belarus, the Republic of Kazakhstan, the Kyrgyz Republic, the Republic of Moldova, and the Republic of Uzbekistan. The registry design: a closed, multicenter registry with two nonoverlapping arms (outpatient arm and in-patient arm). The registry scheduled 6 ...
By the middle of 2021, the official global number of coronavirus disease 2019 (COVID-19) patients... more By the middle of 2021, the official global number of coronavirus disease 2019 (COVID-19) patients was close to 230 million, but the number accounting for asymptomatic patients was much higher. Consequences and rehabilitation after COVID-19 are of particular interest and raise many controversial and unresolved issues. On May 18, 2021, the Eurasian Association of Therapists organized an international panel of experts to analyze challenges associated with the post-COVID-19 period. This panel aimed to develop approaches to identify gaps in the discussed issues. This interdisciplinary team of leading experts reviewed the current literature and presented their data to formulate practical guidance on management of patients after COVID-19. The panel of experts also presented recommendations on how to implement the gained knowledge into health care practices.
DisclaimerThe EAC Guidelines represent the views of the EAC, and were produced after careful cons... more DisclaimerThe EAC Guidelines represent the views of the EAC, and were produced after careful consideration of the scientific and medical knowledge, and the evidence available at the time of their publication. The EAC is not responsible in the event of any contradiction, discrepancy, and/or ambiguity between the EAC Guidelines and any other official recommendations or guidelines issued by the relevant public health authorities, in particular in relation to good use of healthcare or therapeutic strategies. Health professionals are encouraged to take the EAC Guidelines fully into account when exercising their clinical judgment, as well as in the determination and the implementation of preventive, diagnostic, or therapeutic medical strategies; however, the EAC Guidelines do not override, in any way whatsoever, the individual responsibility of health professionals to make appropriate and accurate decisions in consideration of each patient’s health condition and in consultation with that ...
under the under patronage of Heart Vessels and Transplantation journal, under the leadership of G... more under the under patronage of Heart Vessels and Transplantation journal, under the leadership of Gulmira Kudaiberdieva. The researchers from the Central Asia are increasingly interested in running IRIS courses as well as in participating at them. The first IRIS course in the Central Asia was held in 2015 in Kyrgyzstan, and the IRIS 2020 Kyrgyzstan was already the 3 rd one in Kyrgyzstan and the 6 th in the Central Asia. Close and intensive collaboration between Kyrgyzstan and Kazakhstan resulted in an impressive number of trainees and of national faculty (the total number of participants from the Central Asia reached 76, including 30 participants from Kyrgyzstan and 46 from Kazakhstan). The locations of IRIS courses in the Central Asia are presented in Table . Table 1: The location of the IRIS courses in Kyrgyzstan and Kazakhstan.
High altitude pulmonary edema (HAPE) is a relatively rare form of high altitude illness. However,... more High altitude pulmonary edema (HAPE) is a relatively rare form of high altitude illness. However, without immediate treatment, HAPE is fatal. Furthermore, HAPE is characterized by non-specific signs and symptoms, and many clinical conditions may mimic it. In the present article, we report a case of HAPE misdiagnosed as pneumonia. We also discuss the issues of prevention and early treatment options in this illness.
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