Hypertension Clinical Trial
Official title:
Intermittent Hypoxic-hyperoxic Training for the Rehabilitation in Patients With Cardiovascular Pathology After COVID-19 Infection.
Aim of this prospective, interventional, single-center, randomized study is to evaluate the efficacy and safety of intermittent hypoxic-hyperoxic training (IHHT) as a rehabilitation method in patients with cardiovascular pathology in the early period after coronavirus infection. The study will include 60 patients with cardiovascular pathology who underwent confirmed by laboratory tests COVID-19 infection 1-3 months ago with the degree of lung lesion CT3, CT4, who were admitted to the University Clinical Hospital No. 4 of I.M. Sechenov First Moscow State Medical University. The patients will be divided into 2 groups (intervention and control groups). Intervention group will inhale hypoxic gas mixtures (10-12% O2) followed by exposure to a hyperoxic gas mixture with 30-35% O2 5 times a week for 3 weeks, while control group will undergo a simulated IHHT. All the patients will undergo identical laboratory and instrumental testing before IHHT, after the last IHHT procedure, in a month after the last IHHT procedure and in 6 months. Estimated result of the study is to confirm or refute the hypothesis of the study that a three-week course of IHHT in patients with cardiovascular pathology in the early period after coronavirus infection can improve exercise tolerance, as well as the quality of life and psychoemotional status, and affect the dynamics of laboratory and instrumental parameters.
Status | Recruiting |
Enrollment | 60 |
Est. completion date | April 30, 2024 |
Est. primary completion date | December 31, 2023 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 40 Years to 75 Years |
Eligibility | Inclusion Criteria: 1. Written informed consent to participate in the study; 2. Age 40 and over; 3. Male and female; 4. One or more cardiovascular pathologies in the anamnesis: - a reliably confirmed diagnosis of hypertension, stage I-III (the diagnosis was made in accordance with the National Clinical Guidelines - 2019); - stable angina pectoris I-III functional class, confirmed by complaints, anamnesis and physical examination and with the help of diagnostic tests (bicycle ergometry or daily electrocardiography monitoring); - confirmed diagnosis of arrhythmias and conduction disorders based on electrocardiography data and 24-hour Holter monitoring (premature depolarization, supraventricular tachycardia, atrial fibrillation, sick sinus syndrome, atrioventricular block I-II, bundle branch blocks); - chronic heart failure stage I-IIB, I-III functional class (New York Heart Association Functional Classification), confirmed by the presence of clinical signs and at least one of two criteria: myocardial dysfunction of left ventricle or / and an increase in the level of the N-terminal fragment of brain natriuretic peptide over 125 pg / ml; - the presence of signs of systolic or diastolic dysfunction of the left ventricle according to echocardiography. 5. COVID-19 infection confirmed by laboratory tests (polymerase chain reaction testing, enzyme-linked immunosorbent assay (positive result at least 1 time) with a CT degree of 3 or higher. Non-inclusion criteria: 1. Acute infectious diseases, tuberculosis; 2. Chronic somatic diseases in the acute stage; 3. Congenital anomalies of the heart and large vessels; 4. Valvular heart defects (congenital and acquired); 5. Severe atherosclerosis of the lower extremities'vessels (chronic ischemia of the lower extremities,stage 3-4); 6. Acute decompensated heart failure (II-IV class according to Killip classification); 7. Chronic heart failure IV functional class (New York Heart Association Functional Classification classification); 8. Secondary arterial hypertension; 9. Acute coronary syndrome within 4 weeks before the start of the study; 10. Life-threatening rhythm and conduction disturbances; 11. Bronchial asthma with the development of respiratory failure II-III degree; 12. Acute cerebrovascular accident within the last 4 months; 13. Chronic kidney disease (glomerular filtration rate<30 ml / min / 1.73 m2 via CKD-EPI (chronic kidney disease epidemiology collaboration) formula); 14. Pregnancy; 15. Mental illness (severe dementia, schizophrenia, severe depression, manic-depressive psychosis); 16. Oncology, diagnosed within a year or receiving a course of radiation / chemotherapy for cancer at the present time; 17. Severe cognitive impairment (MOS) and clinically significant anxiety and / or depression (HADS) interfering with observation; 18. Individual intolerance to oxygen deficiency. Exclusion Criteria: 1. Refusal to further participation in the study; 2. Acute psychotic reactions arising in the process of the study; 3. Exacerbation of chronic diseases, requiring a change in patient management tactics and preventing his or her further participation in the study. |
Country | Name | City | State |
---|---|---|---|
Russian Federation | University Clinical Hospital No. 4 of I.M. Sechenov First Moscow State Medical University (Institute for personalized cardiology, Center "Digital biodesign and personalized healthcare"). | Moscow |
Lead Sponsor | Collaborator |
---|---|
I.M. Sechenov First Moscow State Medical University |
Russian Federation,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Change in the levels of proinflammatory cytokines. | This outcome will be assessed by taking blood samples from a peripheral vein before and after IHHT to determine and compare the levels of proinflammatory cytokines such as Interleukin-1, Interleukin-6, Interleukin-18 and Tumor necrosis factor. | In 6 months after the reception of 15 IHHT sessions, 40-minutes long each (5 workouts per week) for 3 weeks. | |
Primary | Change of the endothelial function | This outcome will be assessed via taking blood samples from a peripheral vein before and after IHHT to determine and compare the levels of endothelin-1 and nitric oxide.
Measurement of endothelial function will be done by using Flow Mediated Dilation (FMD). The technique involves ultrasound measurement of arterial dilation in response to a 5-minute occlusion of the brachial artery with a blood pressure cuff. |
In 6 months after the reception of 15 IHHT sessions, 40-minutes long each (5 workouts per week) for 3 weeks. | |
Primary | Changes in indicators of diastolic dysfunction. | This outcome will be assessed via transthoracic echocardiography (EchoCG). Transthoracic EchoCG will be performed to assess the heart structure and function: unidimensional (M-mode), two-dimensional (B-mode) and Doppler.
Diastolic function of the left ventricle will be assessed using pulse-wave, constant-wave, and tissue Doppler studies. Received data will be compared to the initial one before the IHHT sessions started and the conclusion about diastolic dysfunction will be made. |
In 6 months after the reception of 15 IHHT sessions, 40-minutes long each (5 workouts per week) for 3 weeks. | |
Secondary | Change in exercise tolerance after intermittent hypoxic-hyperoxic training. | Exercise tolerance will be determined via using a six-minute walk test . The six-minute walk test will measure the distance an individual is able to walk over a total of six minutes on a hard, flat surface. | In 6 months after the reception of 15 IHHT sessions, 40-minutes long each (5 workouts per week) for 3 weeks. | |
Secondary | Change in maximum level of oxygen consumption after intermittent hypoxic-hyperoxic training. | Exercise tolerance will be determined via using a spiroergometry to determine the patient's oxygen consumption.
The spiroergometric test will be performed under continuous stepwise increasing load. The duration of each load step is 5 min; the initial load level is 25 W, followed by an increase in load at each step by the same amount. The results of the test will be used to evaluate the achievement of the maximum level of oxygen consumption (in l/min or ml/min/kg body weight). Received data will be compared to the initial one before the IHHT sessions started and the conclusion will be made. |
In 6 months after the reception of 15 IHHT sessions, 40-minutes long each (5 workouts per week) for 3 weeks. | |
Secondary | Change in the levels of ferritin. | This outcome will be assessed by taking blood samples from a peripheral vein before and after IHHT to determine and compare the levels of long-term inflammatory markers such as ferritin. | In 6 months after the reception of 15 IHHT sessions, 40-minutes long each (5 workouts per week) for 3 weeks. | |
Secondary | Change in the levels of C-reactive protein. | This outcome will be assessed by taking blood samples from a peripheral vein before and after IHHT to determine and compare the levels of long-term inflammatory markers such as C-reactive protein. | In 6 months after the reception of 15 IHHT sessions, 40-minutes long each (5 workouts per week) for 3 weeks. | |
Secondary | Change in the levels of D-dimer. | This outcome will be assessed by taking blood samples from a peripheral vein before and after IHHT to determine and compare the levels of long-term inflammatory markers such as D-dimer. | In 6 months after the reception of 15 IHHT sessions, 40-minutes long each (5 workouts per week) for 3 weeks. | |
Secondary | Change in the levels of fibrinogen. | This outcome will be assessed by taking blood samples from a peripheral vein before and after IHHT to determine and compare the levels of long-term inflammatory markers such as fibrinogen. | In 6 months after the reception of 15 IHHT sessions, 40-minutes long each (5 workouts per week) for 3 weeks. |
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