There are about 6461 clinical studies being (or have been) conducted in Russian Federation. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
Carotid endarterectomy (CEA) is a well-established procedure for preventing ischemic brain damage. Stenosis of the precerebral vessels are often combined with arterial hypertension. In recent decades, many works have appeared that indicate that the course of arterial hypertension (AH) changes after CEA. However, it remains unknown how this is related to the choice of surgical tactics.
Obstructive jaundice is observed in 10-80 % of gallstone disease cases. The conventional tactics for the management of patients with obstructive jaundice is to remove biliary hypertension by using endoscopic or minimally invasive methods. The final surgical treatment is performed after jaundice reduction and normalization of hepatic functions. We suppose that the administration of the drug Remaxol (Inosine + Meglumine + Methionine + Nicotinamide + Succinic acid) during the perioperative period shortens jaundice duration and decreases the complications rate.
The study should evaluate distribution of [123I] I-(HE)3-G3 in patients with primary HER2-positive and HER2-negative breast cancer
The study attempts to quantify the relative risks for acute postoperative pain, complications rate, chronic postoperative pain (CPIP) and recurrence rate after different methods of repair of groin, umbilical and incisional hernia depending on surgical technique, mesh type and fixation suture material. For this purpose the investigators will analyze data from the Kalinigrad Hernia Registry (KHR).
Study population will consist of HRD+ (BRCAm +/- positive genomic instability score according to used test system) OC with available medical history. It is estimated that approximately 400 patients will be enrolled in approximately 25 sites. Demographic and clinical characteristics, treatment approaches and outcomes in HRD+ patients with high-grade epithelial ovarian, primary peritoneal, and/or fallopian tube cancer will be collected at baseline and on prospective visits.
Planned study population consists of approximately 3,150 adult patients with HER2-negative (IHC 0, + or IHC2+/ISH-) unresectable or metastatic BC enrolled to the study in order to obtain approximately 2,000 patients with confirmed HER2 low status (IHC1+ or IHC2+/ISH ).
This clinical study will create an evidence base for rehabilitation approach, which will be used for restoration of pulmonary ventilation and gas exchange, increase of tolerance to physical load reduced in patients who underwent COVID-19. The aim of the present clinical study is to evaluate the effectiveness of medical rehabilitation of COVID-19 patients based on the study of individual physiological parameters of oxygen metabolism and reserve capabilities of the cardiovascular and respiratory systems.
Planned study population consists of approximately 1,000 adult patients with HER2-positive mBC receiving anti-HER2 therapy in about 50 oncological centers (in each center it is expected to recruit about 20 patients) in different regions in order to provide representative study sample. Patients will be included consecutively from the least recent diagnosis (within defined time period). Planned retrospective follow-up period for 1 patient is a period starting from the date of mBC diagnosis until end study or until patient's death, whichever occurs first. End of study will be at least 12 months after the latest date of mBC diagnosis to ensure all patients have the opportunity to contribute at least 12 months of data.
This study was planned to assess the concentration of antihypertensive drugs in the blood plasma in patients with controlled and uncontrolled arterial hypertension. Methods: it is planned to include patients with arterial hypertension taking 3 antihypertensive drugs (indapanide, lisinopril or valsartan, amlodipine). Based on the results of 24-hour blood pressure monitoring, the patients will be randomized into two groups: The first group - the patients with controlled AH; The second group - the patients with uncontrolled AH. Venous blood was taken in both groups of the patients in the morning before and 2 hours after taking drugs to assess the concentration of lisinopril, amlodipine, valsartan and indapamide. Concentation of assesed antihypertensive drugs will be compared in both groups.
Acquired heart diseases continue to remain one of the most common causes of cardiac mortality and morbidity. In the Russian Federation, open surgery treatment of acquired valvular heart diseases (AVHD) is performed in more than 40 regions by specialists from 92 healthcare organizations. Treating aortic or mitral valve disease using the "UniLine" biological prosthesis is expected to improve survival rates. Supposedly, in vivo the "UniLine" biological prosthesis will show optimal hemodynamic characteristics and high resistance to structural valve degeneration and infectious damage, thus lowering the risk of dysfunction. Moreover, the risk of repeated intervention due to dysfunction of the "UniLine" bioprosthesis should not exceed the risk of the primary implantation. Supposedly, in the case of dysfunction of "UniLine" bioprosthesis it would be possible to perform repeated replacement using valve-in-valve technique. The aim of the study is to assess the effectiveness, safety, durability of the "UniLine" epoxy-treated prosthesis and the long-term outcome of the treatment of isolated mitral and aortic valve diseases using this prosthesis. In accordance with the objectives and hypothesis, the following data will be analyzed: actuarial and linear survival rates (general and cardiac), non-lethal prosthesis-associated complications, prosthetic dysfunction and repeated interventions. Moreover, in vivo hemodynamic parameters of the prosthesis will be assessed: the area of the effective opening surface, peak and mean gradient of pressure and blood flow velocity. The study will be conducted at the Research Institute of Complex Issues of Cardiovascular Diseases. Study protocol received sponsorship approval and approval by Local Ethics Committee of the Research Institute and Research Coordinating Committee. The study will enroll patients who underwent isolated mitral or aortic valve replacement; transthoracic echocardiography will be conducted in all patients available for in-person visit.