Active clinical trials for "Thrombosis"

The objective of this study is to determine the rate of radial artery occlusion and vascular access site complications following transradial angiogram using a new Terumo (Tokyo, Japan) Glidesheath Slender, in comparison with the currently used 6 French (6 Fr.) radial sheath.

Residual thrombosis of stent struts may occur after the end of primary angioplasty and determine distal embolization and further myocardial damage. Bivalirudin is considered the most appropriate antithrombotic drug in the setting of primary PCI, but an initial increase in stent thrombosis has been reported. In order to overcome this potential adverse event, a prolonged infusion of bivalirudin after the end of PCI has been proposed. This aim of this study is to test whether the use of long-term bivalirudin infusion, as compared to the intra-procedural only administration, reduces residual thrombosis of stent struts evaluated by optical coherence tomography (OCT) at the end of primary PCI and at 3-5 days follow-up. A subgroup of patients enrolled in the MATRIX (Minimizing Adverse haemmhorragic events by TRansradial access site and AngioX study) study will be selected showing the following inclusion criteria: patients affected by STEMI undergoing primary PCI with stent implantation and randomised to bivalirudin treatment, patients who, in addition to the infarct related lesion, show at least one critical stenosis of other coronary vessels suitable for staged-PCI, patients whose anatomy is suitable for OCT evaluation.

Deep vein thrombosis (DVT) remains a life-threatening complication of arthroplasty. It remains controversial for anticoagulation strategies after total hip arthroplasty (THA). A randomized double-blind study was conducted to determine whether prophylactic anticoagulation was efficient reduce DVT after THA. subjects who underwent uncemented THA were assigned to prophylactic anticoagulation group or non- prophylactic anticoagulation group. Patients were followed up 3 months later after surgery. DVT was tested by contrast venography. Investigator also used logistic regression analysis with variable selection for obtaining the prediction model of DVT. DVT after THA was affected by personal (age) and clinical factors (mechanical compression, duration of surgery). THA with short duration of surgery did not require prophylactic anticoagulation.

Prosthetic heart valve thrombosis is a serious complication with high mortality and morbidity The best treatment of PVT is controversial, although surgery and thrombolysis options have been available. In this randomized and multicenter study, the investigators compared thrombolytic therapy versus surgery for the treatment of patients with obstructive prosthetic valve thrombosis.

Purpose of this study is to determine the incidence of deep venous thrombosis after partial knee replacement.

Recent studies have demonstrated a marked interindividual variability of clopidogrel's capacity to inhibit platelet aggregation with a substantial proportion (11-34%) of the patients considered non-responders to clopidogrel treatment. Variable intestinal absorption is suggested to contribute to the inconsistencies in response to clopidogrel. However, little is known about intestinal absorption in subjects who had suffered from a stent thrombosis. The MAPCAT-study has been designed to investigate whether plasma pharmacokinetics (represented by Cmax, Tmax and the AUC) after a 600 mg loading dose are significantly different between subjects who have suffered a stent thrombosis and subjects who have not suffered a stent thrombosis.

This is a prospective, multi-center single arm registry to assess the use of the OmniWave Endovascular System in subjects presenting with either lower or upper extremity acute (symptoms have been present for greater than or equal to 14 days) DVT.

OptEase filters are easier to retrieve but the dwell time is shorter than the Gunter filters. There are more thrombi on the OptEase than on the Gunter at the time of retrieval. OptEase filter has a better infitration capabillity due to its diamond shape. OptEase filters will hjave more IVC occlusions as a complication.

To reduce episodes of first time stroke by 75 percent in children with sickle cell anemia by the administration of prophylactic transfusion therapy.

The primary purpose of this study is to compare the Celect and Denali filters in terms of complicated filter retrieval and indwelling complications after a 2-month indwelling time.