View clinical trials related to Arteriovenous Malformations.
Filter by:The cerebral arteriovenous malformations correspond to the formation of an entanglement of morphologically abnormal vessels called nidus, which shunt the blood circulation directly from the arterial circulation to the venous circulation. The cerebral arteriovenous malformations are an important cause of hemorrhagic stroke. The hypothesis is that cerebral haemorrhage associated with a cerebral arteriovenous malformations would come from peri-nidal micro-vessels, in connection with infiltration of leucocytes and / or defective maintenance of microvascular integrity by platelets.
Uterine arteriovenous malformations (UAVM) are short circuits between systemic arterial and venous networks within the uterus. They are congenital or acquired (in the course of an endo-uterine gesture such as curettage or interventions such as caesareans or myomectomies). They can be manifested by severe metrorrhagia that can go as far as to put the patient's vital prognosis at risk. There are no recommendations for the management of UAVM since this pathology is rare and therefore series are performed with few cases. If some of these UAVM disappear spontaneously after a therapeutic abstention, when the clinical context allows it, in case of symptomatic UAVM, a selective embolization with arteriography is often carried out to postpone the hysterectomy of hemostasis. There are also more marginal management options such as Gonadotropin-Releasing Hormone agonists, methotrexate or curettage that are decided on a case by case basis depending on the symptoms and protocols of each medical team. Regarding subsequent fertility and pregnancy outcomes after conservative treatment, the number of studies is even lower.
Evaluate whether a treatment plan based on CT angiography can accurately and precisely identify the target nidus as compared to standard cerebral arteriography fused to MRI.
This study will thus examine daily behaviour based on smartphone use and link it to the neurological and neuropsychological status as well as to neuroradiological studies that are part of the clinical routine. The study will examine behaviour changes before and after surgery, and how this change in measured behaviour with the smartphone relates to today's "gold standard", namely professional neuropsychological examination and quantification of brain damage on imaging studies (MRI). This study is a proof-of-principle study that intends to build the basis for larger future observational studies on patients with focal or diffuse brain pathologies.
The objective of this study is to further establish that SQUID, an alternative liquid embolic agent with specific properties, is a safe and effective alternative in bAVM endovascular treatment strategy available to date. Therefore, the performance of SQUID will be documented and its safety of use will be confirmed in current practice.
Near infrared spectroscopy is a valuable tool to monitor cerebral oxygenation during intracranial interventions. However, it yields artificial results when the dye indocyanine green (ICG) is applied, which is routinely done for intraoperative angiography. The investigators examine, to what extent and which duration NIRS is disturbed following ICG application.
The primary objective of this study is to assess the efficacy and safety of PHIL® liquid embolic agent in endovascular embolization of cerebral arteriovenous malformations.
In the stage of randomized controlled study, our purpose is to obtain the Intraoperative anticoagulation program supported by evidence-based medicine.
In the stage of registration study, our purpose is to find out the safety range of activated coagulation time level in cerebral aneurysm and arteriovenous malformations with hybrid operation.
Rapid ventricular pacing (RVP) is a technique to obtain flow arrest for short periods of time during dissection or rupture of the aneurysm. RVP results in an adequate fall of blood pressure which presents as an on-off phenomenon. It is not clear whether repetitive periods of pacing are harmless for the patient. Silent cardiac and cerebral infarcts may be undetected. The investigator will study the safety of RVP, particularly for the heart and the brain, retrograde by studying troponin levels and magnetic resonance imaging or computed tomography.