A brain CT, performed because of subacute pain and weakness in the left arm of a 61-year-old man, revealed cerebral and faciocervical venous gas emboli (figures 1 and 2). A peripheral IV catheter had been placed 2 hours prior to CT without incident of disconnection. A second CT, performed 2 hours later, showed only persistent gas in the cavernous sinus. Twelve days later, CT was normal. Transth...

Local cerebral blood flow (LCBF) and local tissue: blood partition coefficient (L lambda) values were measured for small volumes of gray or white matter by CT CBF. Single compartment analysis was used but fitted to infinity in normal volunteers aged between 20 to 100 years (N = 20). Hemispheric LCBF and L lambda values were compared to those of 61 age matched patients with transient ischemic at...

Two populations of patients with mitral valve prolapse were analyzed to identify factors predisposing to the development of cerebral emboli. Of 760 patients followed for up to five years by our cardiologists with echocardiographically demonstrated mitral valve prolapse (MVP), only one, aged 82 years, has had a stroke. In contrast, of 43 patients admitted to our neurology service with a cerebral...

The authors report a girl born at term via planned cesarean delivery. Three days earlier, an antenatal magnetic resonance imaging study, showing no cerebral lesions in the fetus, was performed. Ten minutes after delivery, signs of progressive respiratory failure developed and the infant was transferred to the intensive care unit. On the next day, a computed tomography (CT) scan showed acute isc...

BACKGROUND Isolated thrombosis of the deep cerebral venous system is very rare and is associated with a poor prognosis. Antithrombin III (AT III) deficiency is a disorder of hypercoagulability associated with deep venous thrombosis and recurrent pulmonary emboli. We report a case of an 18-year-old man who presented with spontaneous thrombosis of the deep cerebral veins and straight dural sinus ...

Experimental Cerebral Infarction. I. Selective Segmental Occlusion of Intracranial Arteries in the Dog • 1. Cylinders of silicone rubber can be molded to any desired diameter and cut to length, yielding a highly pigmented, radio-opaque, elastic bolus suitable for intravascular injection and embolization. 2. Emboli of this type can be localized by x-ray in vivo and at post mortem for clinicopath...

BACKGROUND AND PURPOSE High-intensity transient signals detected by transcranial Doppler sonography have been associated with particulate cerebral emboli. Their clinical correlates are poorly understood. This study was undertaken to assess their relation to cerebral ischemia and to determine whether the severity of cerebral arterial stenosis has an impact on their occurrence. METHODS We studi...

Accumulating evidence implicates cerebral fat embolism (CFE) as a causative agent in post-operative confusion (POC). CFE occurs following orthopaedic procedures including, intra-medullary (IM) nailing and total joint arthroplasty (TJA). The incidence of CFE is high (59-100% TJA) and the resulting POC is associated with higher overall complication rates. Cognitive dysfunction improves in many pa...