Successful Management with Glue Injection of Arterial Rupture Seen during Embolization of an Arteriovenous Malformation Using a Flow-Directed Catheter: A Case Report

We present a case in which an arterial rupture occurring during embolization of an arteriovenous malformation of the left occipital lobe with a flow-directed micro-catheter,was successfully sealed with a small amount of glue. We navigated a 1.8-Fr Magic catheter through the posterior cerebral artery, and during superse-lective test injection, extravasation was observed at the parieto-occipital branch. The catheter was not removed and the perforation site was successfully sealed with a small amount of glue injected through the same catheter. Prompt recogni-tion and closure of the perforation site is essential for good prognosis.

Traumatic subarachnoid haemorrhage: elastic tissue distribution across the wall of some major cerebral arteries in relation to arterial wall disruption

The observed shredding of the vertebro-basilar arterial wall in cases dying of traumatic subarachnoid haemorrhage, together with the uneven centrifugal travel of tears across the wall indicate that, arterial wall never blows out like a simple tube of homogeneous structure, and that there might be some mechanical weak points of apparent normal histological structure. In this work, examination of three groups of intact, in-vivo ruptured and in-vitro ruptured vertebral arteries showed that across the wall of the vertebral artery, the elastic fibres are non-uniformly distributed at the tunica media and adventitia. This finding, would result in uneven strain across the wall when become stressed by the water hammer pressure wave to produce such a type of arterial wall disruption at sites of scanty or lacking elastic fibres

Obstruçâo traumática da artéria cerebral média na infância / Traumatic occlusion of middle cerebral artery in infancy

A case of traumatic occlusion of the middle cerebral artery in a 12 years-old child is reporter. This complication has been rarely observed, since cerebral angiography was substituted by computed tomography in patients with head injury in emergency rooms. The mechanisms involved in the physiopathology of this complication and its treatment are discussed