AVM

This three-year observational study involves patients of all ages undergoing endovascular treatment for various cerebral or spinal vascular conditions. It aims to assess pre- and post-operative clinical conditions, report complications, and identify preoperative indicators of treatment outcomes. Patients will also receive psychological support and Neuropsychological assessment. Clinical, medical, and demographic data will be recorded in a database during hospitalization and follow-up visits.

BALT has designed an electronic platform to continue collecting clinical data as part of the post-marketing clinical follow-up of its devices. This platform is purely exploratory, without hierarchical order of the objectives and associated outcomes.

The objectives of this study and registry are to offer the best management possible for patients with brain arteriovenous malformations (AVMs) (ruptured or unruptured) in terms of long-term outcomes, despite the presence of uncertainty. Management may include interventional therapy (with endovascular procedures, neurosurgery, or radiotherapy, alone or in combination) or conservative management. The trial has been designed to test a) whether medical management or interventional therapy will reduce the risk of death or debilitating stroke (due to hemorrhage or infarction) by an absolute magnitude of about 15% (over 10 years) for unruptured AVMs (from 30% to 15%); and, b) to test if endovascular treatment can improve the safety and efficacy of surgery or radiation therapy by at least 10% (80% to 90%). As for the nested trial on the role of embolization in the treatment of Brain AVMs by other means: the pre-surgical or pre-radiosurgery embolization of cerebral AVMs can decrease the number of treatment failures from 20% to 10%. In addition,embolization of cerebral AVMs can be accomplished with an acceptable risk, defined as permanent disabling neurological complications of 8%.