View clinical trials related to Thrombosis.
Filter by:The main objective of this single arm study is to evaluate the safety and feasibility of the AXS Infinity LS (Stryker, Freemont, CA, USA) and AXS Infinity LS Plus (Stryker, Freemont, CA, USA) catheters during the transradial approach through a secondary use of the data collected during neurointerventional procedures. This includes evaluating the conversion rates to a transfemoral approach. A secondary aim of the study is to assess the radial artery occlusion rates post procedure.
This is a human randomized controlled cross-over study where the effects of heated tobacco products (HTP) on vascular function, microcirculation and thrombosis is assessed.
For patients with large head and neck tumors the recommended treatment, in many cases, is a combination of extensive surgery and postoperative radiotherapy. The surgical procedure involves resection of the tumor and reconstruction with a so called microvascular free flap, i.e. tissue transferred from for instance the arm or leg to the resection site. Complications of this complex procedure include, but are not limited to, bleeding and blood cloths (thrombosis) in the transferred tissue (free flap), which can cause very serious complications including need for further surgery and loss of the flap. Routine blood tests can measure parts of the system that regulates bleeding and the forming of blood clots, the so called coagulation system, but these tests don't cover the whole system. There are however more advanced instruments, such as ROTEM, rotational thromboelastometry, which provide a more global view of the hemostatic potential of whole blood. ROTEM is one of few more advanced assays that can be analyzed in emergency situations in major hospitals. Other more advanced coagulation assays are thrombin generation and measurements of specific coagulation factors, several of which are vitamin K dependent. Vitamin K is essential in the coagulation system and also involved in many other physiological processes. Deficiency of this vitamin is common, but not well studied in patients undergoing head an neck free flap surgery. The investigators plan to study ROTEM and other above mentioned coagulation parameters in patients undergoing major head and neck surgery including microvascular free flap reconstruction to assess if these parameters can help predict patients at risk for bleeding or flap thrombosis. Further on this could hopefully enable prevention of complications and improve treatment of coagulation complications that still occur.
This study aims to describe the incidence of catheter-related and non-catheter-related thrombosis in a population of adults in ICU and to assess its correlation with alteration of coagulation parameters.
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
The study is a randomized, doubled-blinded, placebo-controlled, Phase I trials. The study is divided into two parts. The first part is a single-dose escalated study (SAD,part 1A ) and food effect study (SAD, part 1B ) in healthy subjects. The second part is a multi-dose escalated study (MAD) in healthy subjects.
Acute infarction patterns have been described in cardioembolic stroke, mainly with atrial fibrillation (AF) or patent foramen ovale. We aimed to analyse acute infarction MRI characteristics in stroke patients with intracardiac thrombus (ICT) compared with stroke patients with AF.
Severe SARS-CoV-2 infection, responsible of COVID-19, is accompanied by many venous thromboembolic events. Antithrombotic treatment is the cornerstone of management of many neurovascular diseases (NVDs) and the benefit-risk ratio is crucial to avoid hemorrhagic complications. Therefore, in non-severe COVID-19 patients affected by NVDs, the diagnostic of deep venous thrombosis (DVT) is challenging. Using bedside Doppler ultrasonography (DUS) of lower limbs, this study investigated the rates of DVT in these patients in stroke unit.
Hospital-acquired venous thromboembolism (HA-VTE) is one of the leading preventable causes of in-hospital mortality, but prevention of VTE in hospitalized medical patients remains challenging, as preventive measures such as pharmacological thromboprophylaxis (TPX) need to be tailored to individual thrombotic risk. The broad objective of this project is to improve VTE prevention strategies in hospitalized medical patients by prospectively examining VTE risk factors (including mobility) and comparing existing risk assessment models.
Transcatheter aortic valve implantation (TAVI) is a rapidly growing treatment option for patients with aortic valve stenosis. Stroke is a feared complication of TAVI, with an incidence of around 4-5% in the first 30 days. Up to 50% of patients undergoing TAVI have an indication for oral anticoagulants (OAC) mostly for atrial fibrillation. OAC use during TAVI could increase bleeding complications, but interruption during TAVI may increase the risk for thromboembolic events (i.e. stroke, systemic embolism, myocardial infarction). Recent observational data suggest that periprocedural continuation of OAC is safe and might decrease the risk of stroke. Beside the potential reduction of thromboembolic events, continuation of OAC is associated with an evident clinical ancillary benefit for patients and staff. Since periprocedural OAC interruption not infrequently leads to misunderstanding and potentially dangerous situations, when patients are not properly informed before hospital admission or may experience difficulties with the interruption regimen. Hypothesis: Periprocedural continuation of oral anticoagulants is safe and might decrease thromboembolic complications without an increase in bleeding complications at 30 days