Clinical trials

The goal of this study is to evaluate the impact of a diagnostic algorithm combining culture-based and molecular methods on the frequency of etiotropic antibiotic therapy prescription within 14 days of diagnosis of infective endocarditis

It is a prospective, controlled, single-center, non-randomized, observational study. Two patient groups are planned for inclusion: the first - 200 patients with significant coronary artery stenosis confirmed by coronary angiography (CAG) or multislice computed tomography (MSCT) results; the second - a control group consisting of 200 patients without significant stenosis according to CAG or MSCT data. All study subjects will have a date of coronary artery imaging via CAG or MSCT with assessment of myocardial perfusion. Stress echocardiography tests or fractional flow reserve (FFR) assessment will be conducted as indicated. All patients included in the study will undergo ECG recording within 1 month before or after CAG or MSCT in standard lead I for 1 minute, followed by spectral analysis of the obtained data, which will be stored at the remote monitoring center of Sechenov University without being linked to the personal data of patients. A spectral analysis of the electrocardiogram will be performed using a continuous wavelet transform. The result of this study will be the identification of ECG parameters that correlate with significant coronary artery stenosis.

It is a prospective, controlled, single-center, observational, non-randomized study. The study is planned to include at least 500 patients 18 years old and older (300 patients in the training sample and 200 patients in the test sample. The study will include all patients requiring exclusion of the diagnosis of acute pulmonary embolism. Patients will be examined according to clinical guidelines to confirm the diagnosis of pulmonary embolism (laboratory, clinical and instrumental). During the course of the study, the authors of the work do not interfere with the scope of the examination, which is caried out on patients in accordance with clinical guidelines. All patients included in the study will undergo electrocardiogramm (ECG) in standart lead I for 1 minute, followed by spectral analysis of the obtained data, which will be stored at the Remote monitoring center of Sechenov University without being linked to the personal data of patients. A spectral analysis of the electrocardiogram will be performed using a continuous wavelet transformation. The result of this study will be the identification of ECG parameters that will correlate with pulmonary embolism.

This observational feasibility study aims to assess (i) how practical and acceptable repeated KCCQ assessments are; (ii) the connection between changes over time in KCCQ scores and signs of congestion; and (iii) clinical outcomes, including worsening heart failure events or cardiovascular death (CVD), and the time between 5- and 10-point KCCQ changes and clinical events.

It is a prospective, controlled, single-center, observational, non-randomized study. The study is planned to include at least 4000 patients 18 years old and older in the training sample and 1000 patients over 18 years old in the test sample (the total number of patients is at least 5000 people). Patients will be included in the study if they have undergone a full examination (laboratory, clinical and instrumental), allowing for the verification or exclusion of cardiac and cardiac-associated pathology in accordance with current recommendations. During the course of the study, the authors of the work do not interfere with the above-mentioned scope of the examination, which is carried out on patients in accordance with clinical guidelines. All patients included in the study will undergo ECG recording in standard lead I for 1 minute twice, followed by spectral analysis of the obtained data, which will be stored at the remote monitoring center of Sechenov University without being linked to the personal data of patients. A spectral analysis of the electrocardiogram will be performed using a continuous wavelet transform. The result of this study will be the identification of ECG parameters that will correlate with cardiac and cardiac-associated pathology

Effective monitoring of fetal heart activity during the second and third trimesters remains a vital challenge in perinatal medicine. This study proposes an adaptive algorithm for extracting the fetal electrocardiograms signal from abdominal ECG in pregnant women, considering the physiological characteristics of each trimester. Utilizing modern machine learning methods, independent component analysis, and data from wearable textile electrodes. The goal is to enhance the accuracy and reliability of automatic signal separation. A dataset of 300 recordings will be collected and analyzed. The resulting algorithm will enable rapid and precise detection of fetal heartbeats. To validate the algorithm, 50 patients will be recruited separately.

For the first time, a comparative analysis of the limb axis in patients with unilateral knee OA will be conducted compared to the contralateral uninjured side using Multisliced computed tomography (MSCT) and vertical CT (weight-bearing CT). This analysis will identify the pathological and physiological degrees of varus in patients with unilateral gonarthrosis. Indications for mechanical and kinematic limb axis alignment will be substantiated depending on the degree of varus deformity. Aim of the study: To improve the results of total knee arthroplasty in patients with varus deformity by optimizing the degree of varus correction. Objectives: To analyze physiological and pathological varus in patients with unilateral osteoarthritis under physiological loading. To develop an algorithm for applying various types of limb alignment.

Objective: To validate the performance of the developed clinical decision support system (CDSS) for participants with lipid metabolism disorders based on a decision tree algorithm. Materials and Methods: A clinical decision support system for participants with lipid profile abnormalities will be developed using the Orbeon open-source online form creation platform based on current clinical guidelines. During the CDSS pilot implementation, the electronic medical records (EMRs) of 500 participants from the Institute of Personalized Cardiology of the Biomedical Science and Technology Park at Sechenov University will be analyzed. Retrospective data on prescribed lipid-lowering therapy extracted from the EHR will be compared with the CDSS recommendations. The accuracy of the decisions will be assessed by three independent experts based on digitized clinical and laboratory patient profiles. The primary endpoint of the study will be to determine the accuracy of the system. Results: This study will result in the development (creation) and pilot application of the CDSS program in participants with dyslipidemia in real clinical practice. Conclusion: The developed CDSS system for dyslipidemia will significantly reduce the time required for clinical decision-making and help avoid errors in the interpretation of patient data.

During the preoperative examination, in addition to the standard examination recommended before high-risk cardiac surgeries, a digital single-lead ECG is recorded using portable CardioQUARK devices. This ECG is analyzed for time, amplitude, and frequency parameters-more than 200 parameters per cardiac cycle. Additionally, the available parameters of a standard 12-lead ECG recording are determined. All parameters of both single-lead and 12-lead ECGs will be included in a multivariate regression analysis to determine the optimal method for predicting atrial fibrillation, life-threatening cardiac arrhythmias, and conduction abnormalities in the perioperative period after high-risk cardiac procedures. The study will include patients undergoing high-risk cardiac surgeries, such as those on the heart, aorta, esophagus, pancreas, liver, and lungs, as well as high-risk oncological surgeries. A partial analysis will also be performed depending on the type of intervention. Rhythm and conduction disturbances will be recorded during surgery, as well as in the postoperative period, using ECG monitors, 24-hour ECG monitoring, and repeated recordings of a standard ECG when complaints or signs of unstable hemodynamics arise

The goal of this observational study is to learn about the metabolomic profile of blood and urine in children 12-17 years with asthma. The main question it aims to answer is: • Are there metabolites in the blood and urine that are specific for asthma exacerbation? Participants already receive standard therapy as part of their regular medical care for asthma.

This study aims to develop a non-invasive diagnostic method for metabolic syndrome (MetS) and metabolically healthy obesity (MHO) through analysis of exhaled air. Using proton-transfer-reaction mass spectrometry combined with machine learning algorithms, we will characterize volatile organic compound profiles in 300 participants across three groups: MetS patients, MHO patients, and healthy controls. The primary goal is to create and validate a classification model capable of accurately differentiating these metabolic states based on breath analysis.

It is a prospective, controlled, single-center, observational, non-randomized study. The study is planned to include at least 1000 patients over 18 years old in the training sample and 200 patients over 18 years old in the test sample (the total number of patients is at least 1200 people). All patients will undergo an echocardiography examination with a comprehensive analysis of the function of the valves and other structures of the heart according to current recommendations by two independent experts. Registration of electrocardiogram will be performed immediately after echocardiography using a single lead ECG monitor (in I standard lead) for 1 minutes. The obtained data will be stored in the remote monitoring center of Sechenov University without being linked to the personal data of patients. A spectral analysis of the electrocardiogram will be performed using a continuous wavelet transform. The result of this study will be the identification of ECG parameters that will correlate with valvular heart disease.

Heart failure with preserved ejection fraction (HFpEF) is considered a systemic condition in which the prevalence of cardiovascular, metabolic, pulmonary and renal conditions determine the extent of cardiac involvement. Numerous attempts have been made to phenotype HFpEF, but patients still lack a clinically and/or prognostically relevant approach. Progressive cardiac deterioration in HFpEF appears to be associated with a worse prognosis. However, no attempt has been made to classify the extent of cardiac involvement in HFpEF. Investigators proposed the concept of HFpEF staging according to the extent of cardiac involvement identified by transthoracic echocardiography: Stage 1: isolated left ventricular involvement; Stage 2: left atrial myopathy; Stage 3: pulmonary vasculature involvement; and Stage 4: right chambers involvement. The study aims to investigate the associations between the proposed stages and clinical outcomes in HFpEF patients.

The purpose of this clinical trial is to study the efficacy of bovgialuronidase azoximere in the treatment and duration of recurrence-free course of bacterial vaginosis in women of reproductive age. The main questions it aims to answer are: * Is bovgialuronidase azoximer able to destroy G. vaginalis associated biofilms of the vaginal epithelium * use of bovgialuronidase azoximer together with Metronidazole increases the effectiveness of treatment of bacterial vaginosis. * use of azoximers bovgialuronidase together with Metronidazole increases the duration of relapse-free course of bacterial vaginosis. Participants in the experimental and control group will be: * Amsel criteria assessment * Colpotest-PH (vaginal acidity) * aminotest with 10% KOH solution ("fish odor") * microscopic examination of vaginal discharge * Bacteriologic culture of vaginal discharge * Polymerase chain reaction of epithelial cell scrapings from the vagina * electron microscopy of vaginal epithelial cell scrapings Participants in the main group will be given the drug Bovgialuronidase azoximer and Metronidazole. Participants in the control group: Metronidazole. Researchers will compare the experimental and control groups to see if there are differences after treatment in biofilm structure, treatment efficacy, and duration of recurrence-free survival.

Single-center, double-blind, randomized, controlled intervention study of the effect of correction of bacterial overgrowth syndrome in the small intestine (SIBO) on cardiac function in patients with heart failure with preserved ejection fraction (HFpEF) (SIBO-HFpEF). The aim of the study is to evaluate the efficacy and safety of rifaximin in patients with HFpEF and SIBO.

DIALOG is a study to assess the efficacy and safety of remote patient monitoring using virtual operator voice technologies and a business intelligence (BI) system for timely detection, prevention of early complications, worsening of the condition, and other adverse events in patients who have been discharged from the hospital.

An active surveillance protocol for patients diagnosed low-risk prostate cancer will be held. We plan to use PSA (prostate-specific antigen) testing, DRE (digital rectal examination), TRUS (transrectal ultrasound), MRI (magnetic resonance imaging) and follow-up biopsies to monitor patients and detect cancer progression in time.