Active clinical trials for "Thrombosis"

Many guidelines at home and abroad advocate that arteriovenous fistula should be the first choice of permanent vascular access, but it is easy to form thrombus in a short time after arteriovenous fistula molding, resulting in internal fistula stenosis or occlusion. In this study, the investigators plan to screen the patients with arteriovenous fistula in the blood purification center of our hospital. Through the study design of random grouping and open label, the investigators will discuss the use of low molecular weight heparin or warfarin to prevent thrombosis in a short period of time after arteriovenous fistula operation. According to the research results, the investigators will understand efficacy and safety of short-term postoperative anticoagulant therapy to prevente thrombosis in arterovenous fistula.

Haemorrhoidal disease (HD) is the most common proctological disease, with a prevalence that can reach up to 39% of the population. Although I and II degree HD can be treated successfully with medical therapy or office-based procedures , excisional haemorrhoidectomy remains the gold standard technique in patients with III and IV degree HD, obtaining a much lower rate of recurrence than non-excisional methods, such as Doppler-guided haemorrhoidal artery ligation or stapled haemorrhoidopexy. However, both open and closed haemorrhoidectomies are associated with a significant rate of post-operative pain , which may be due to the incorporation of sensitive anal mucosa and fibres of the internal sphincters during the ligation of the vascular pedicle, post-operative scars, hygiene/social habits, hard stool, or oedema of the necessary mucocutaneous bridge. Regarding the oedema/thrombosis of the mucocutaneous bridges, we strongly believe that it is the main cause of post-operative pain, and we have shown that the use of mesoglycan, a polysaccharide complex with antithrombotic and profibrinolytic properties, can reduce the rate of post-operative thrombosis and consequently post-operative pain 7-10 days after the procedures, improving patient quality of life and speeding up the recovery of daily activities. Furthermore, its usefulness is also evident in the treatment of the acute phase of external haemorrhoidal thrombosis. The aim of the study was to evaluate the efficacy of mesoglycan in the post-operative period of patients who underwent open excisional diathermy haemorrhoidectomy, confirming the previously obtained results

In this study a retrospective analysis of patients database was performed, who underwent treatment for deep vein thrombosis in tertiary hospital by using inferior vena cava-filters

Chemotherapy-induced thrombocytopenia (CIT) is a common hematological toxicity in patients with solid tumors undergo chemotherapy, which can increase the risk of bleeding, prolong hospital stay, increase medical costs, and even lead to death in severe cases. The incidence and severity of CIT varies among different chemotherapy regimens. Recombinant human interleukin-11 (rhIL-11) and recombinant human thrombopoietin (rhTPO) have been approved for the treatment of chemotherapy-induced thrombocytopenia. Tumor patients are at high risk for venous thromboembolism (VTE). In the clinical study of rhIL-11, it was found that the administration of rhIL-11 in healthy subjects caused an increase in the plasma concentration of vWF factor in the form of normal mults. The application of rhIL-11 in patients with myeloid leukemia can increase the concentration of α2 globulin, fibrinogen and prothrombin time. However, there have been no large-scale clinical studies at home and abroad to evaluate whether platelet raising therapy will increase the risk of thrombosis in chemotherapy patients with solid tumor. This study is aimed to evaluate the efficacy and safety of platelet upwelling therapy in patients with solid tumors undergoing chemotherapy.

The present study is a non-interventional retrospective chart review study assessing the prevalence of PNH-clones in patients with PNH risk-factors aged ≥14 years and treated at our hospital. The objective of this study is to develop a PNH screening tool on the hospital Electronic Health Record (EHR) system. An algorithm defining PNH risk groups is developed.

The ULTREC research project is designed to assess the safety of a negative strategy relying on Colour Doppler Ultrasound (CDUS) for excluding the diagnosis of a new thrombosis. The ULTREC project does not take into account the validity of the CDUS positive criteria used to confirm the diagnosis of Deep Vein Thrombosis (DVT) recurrence. The risk of considering only the negative strategy is to ignore the possibility of having an improvement in sensitivity and negative predictive value at the expense of specificity and positive predictive value and therefore to increase the false positive rate leading to an overdiagnosis of recurrence and an overtreatment, and a potential bleeding risk. In the ULTREC-ANCILLARY study, the research will aim at assessing the validity of baseline CDUS positive criteria for the diagnosis of DVT recurrence. As there is no diagnostic standard to which the results could be compared, it is suggested to validate these criteria based on the evolution of the thrombosis on CDUS performed at D90±5. The hypothesis is that an unchanged appearance under anticoagulation would be in favor of sequelae and will invalidate the initial diagnosis (diagnostic failure)

Perioperative hypothermia carries high risk of associated complications. In the observational study, the standard perioperative temperature management will be evaluated and the influence of the hypothermia on the coagulation system according to routine coagulation testing in combination with ROTEM will be evaluated.

According to the guidelines recommended, only a few new targeted therapy drugs treatment, such as Sorafenib, is proper. It's 3 year survival rate is only 8% or so. According to our previous study, patients with hepatic carcinoma without portal vein tumor thrombus backbone and the contralateral tumor thrombus applyed tumor excision, along with tumor thrombus, the 3 year survival rate can reach 39.9%, the 5-year survival rate can reach 22.7%, curative effect is obviously better.

The purpose of this study is to characterize a new test to assess the rate and time it takes to form a blood clot in people who either do or do not take aspirin.

Patients with cancer have a high risk of deep vein thrombosis which often develops in the veins of the lower limbs. The initial evaluation of clinically suspected deep vein thrombosis includes the estimation of the clinical probability by calculating risk scores such as the Wells score and the measurement of the D-dimer. However, the usefulness and accuracy of the clinical scores and d-dimer test are lower in patients with cancer who often undergo unnecessary (serial) ultrasonography. The aim of the current study is to analyze variables that predict the presence of thrombosis and may improve the accuracy of the Wells score. In addition, various cut-off of the d-dimer will be evaluated with the goal of improving the sensibility and specificity of the test.