View clinical trials related to Thrombosis.
Filter by:This study aims at evaluating the implementation of clinical-pharmacist-led anticoagulation stewardship program in Egyptian tertiary hospital to promote a culture of safety around anticoagulants.
Asian populations have a lower rate of high-risk gene mutations of venous thrombosis, which means a reasonable perioperative anticoagulant management after hip or knee arthroplasty for Caucasian populations may be too excessive for Asians. So, individual patient risk assessment, rather than a "blanket policy", is considered the best thromboembolism prophylaxis for Asians.The purpose of this study was to evaluate the effectiveness and safety of selective thromboembolism prophylaxis compared with conventional thromboembolism prophylaxis by risk stratification with thromboelastography (TEG) after joint arthroplasty for Asian populations.
The investigators aim to test the thrombotic potential of various heart chambers including left atrium, left atrial appendage, right atrium and peripheral veins. Blood samples will be taken from the different chambers in 50 patients admitted for standard pulmonary vein ablation and compared to patients without atrial fibrillation admitted for left sided supra ventricular tachycardia or mitral clip. Thrombin generation parameters will be assessed by the calibrated automated thrombogram.
This study aimed (1) revaluating the efficacy of the Wells' clinical prediction score for an inpatient population; and the weight of the presence of thromboprophylaxis treatment on the score, and (2) evaluating the correlation of a risk stratification established between a physician specialised in thrombosis and any other doctor.
Thrombosis is a maladaptive process of vascular occlusion and remains a primary cause of cardiovascular morbidity and mortality, The dose-limiting issue with available anticoagulant therapies is bleeding. The primary objective of this study is to assess the safety and tolerability of SHR2285 tablets in healthy subjects. In addition, this study will provide information on Pharmacokinetics and Pharmacodynamics of SHR2285 tablets in healthy subjects.
A unique inside-out-access technique with a new CE certified device (Surfacer (R) Bluegrass Vascular, San Antonio, Tx, USA) enables repetitive and confident right-sided placement of central venous catheters in hemodialysis patients with thoracic central venous occlusion.
Centers that participated in the HOKUSAI VTE trial will be invited to collect follow of previously enrolled patients at least 2 years after the index VTE.
Peripherally inserted central catheters (PICCs) are central catheters that are placed via peripheral vein under ultrasound guidance and may be used for patients with difficult venous access for long-term central or peripheral infusion therapies as well as central venous pressure monitoring in a critical care setting. Although PICCs provide a great option for some patients, these catheters have known complications including catheter-related bloodstream infection, catheter-related venous thrombosis or clotting, malfunction, and high cost. Midline catheters represent a potentially attractive alternative to PICCs for peripheral infusions. As midlines have increased in popularity and new midlines have been introduced into the market, it is necessary to better understand complication profiles of various midline catheters, as it is likely that all catheters are not created equal. Specifically, the incidence of symptomatic catheter-related thrombosis is of interest. Some midline catheters are coated to provide protection against catheter-related venous thrombosis and/or catheter-related bloodstream infection. The theoretical benefit(s) of these catheters need further validation in human subjects.
Extracorporeal membrane oxygenation (ECMO) is a lifesaving procedure used to treat severe forms of heart and/or lung failure. It works by the principal of replacing the function of these organs by taking blood from the patient, provide it with oxygen outside the body and return it to the patient in one continuous circuit. Because of the evaluability of better technology, the use of ECMO has exponentially risen over the last decade. This treatment is very invasive and carries a number of risks. It is mostly used in situations where it seems likely that the patient would otherwise die and no other less invasive measure could change this. Still in large registries 50-60% of patients die which is often due to complications associated with the treatment. One of the most important complication is caused by the activation of clotting factors during the contact with the artificial surfaces of the device. This can lead to clot formation inside the patient or the device. To counterbalance this anticoagulation is needed. Because of the consumption of clotting factors and the heparin therapy bleeding complications are also very common in ECMO. Clinicians are challenged to balance these competing risks and are often forced to transfuse blood products to treat these conditions, which comes with additional risks for the patient. Many experienced centres have reported thromboembolic and bleeding events as the most important contributor to a poor outcome of this procedure. However, no international study combining the experience of multiple centres to compare their practice and identify risk factors which can be altered to reduce these risks. This study has been endorsed by the international ECMONet and aims to observe the practice in up to 50 centres and 500 patients worldwide to generate the largest ever published database on this topic. It will concentrate on patients with severe heart failure and will be able to identify specific risk factors for thromboembolic and bleeding events. Some of these factors may be modifiable by change in practice and can subsequently be evaluated in clinical trials. Some of these factors may include target values for heparin therapy and infusion of clotting factors. This study will directly improve patient management by informing clinicians which measures are associated with the best outcome and indirectly helps building trials to increase the evidence further.
Despite of preventive measures, the incidence of deep venous thrombosis (DVT) in ICU patients is estimated to range from 5-31%. While clinical diagnostics is unreliable, ultrasound compression test (UCT) has proven to be a highly sensitive and specific modality for the recognition of lower extremity DVT. Delegating this competence to ICU nurses can increase UCT availability and enable preventive DVT screening. Therefore, the investigators decided to conduct a clinical study to evaluate the sensitivity and specificity of UCT performed by general ICU nurse in ICU patients compared to an investigation by ICU physician certified in ultrasound. Prior to the study, each nurse-investigator participating in the study undergo one-hour training in UCT and examine 5 patients under supervision. Then, ICU patients without known DVT will be investigated by UCT in the femoral and popliteal region of both lower extremities by trained general ICU nurse-investigators. On the same day, the examination will be repeated by an ICU physician-investigator. The results of the examinations of each patient will be blinded to each other for both investigators until both tests are performed. The sensitivity and specificity of the test performed by general nurse will be calculated in comparison with the examination by a specialist.