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At least 631 records · Page 35Linked to original sources
PubMed1993

Cerebral healing after craniotomy to evacuate a Coenurus cerebralis cyst.

An 11-month-old ewe developed neurological signs caused by a space-occupying lesion in the left cerebral hemisphere. Successful surgical evacuation of a Coenurus cerebralis cyst was carried out, the neurological signs regressed and the ewe produced twins in the following breeding season. Sixteen months after the surgical treatment the ewe was found dead and necropsy revealed a vegetative endocarditis. In the brain, at the site of cyst evacuation, there was a collapsed subcortical cavity lined by siderotic fibrovascular tissue and surrounded by a modest glial reaction. These observations confirm that the clinical signs of cerebral coenuriasis are related to the space-occupying effect of the parasitic cyst and indicate that partial replacement by gliomesodermal tissue plays a part in healing of the collapsed cyst.

Animals↗
PubMed2002

Vascular tunnel creation to improve the efficacy of decompressive craniotomy in post-traumatic cerebral edema and ischemic stroke.

BACKGROUND: Decompressive craniectomy with durotomy has been well described but remains a controversial treatment for traumatic or ischemic brain swelling. Although the technique can reduce intracranial pressure it frequently results in infarction of the brain tissue which extends through the durotomy because of compression and subsequent complications associated with decompressive craniectomy. METHODS: All patients treated with surgical decompression were comatose with Grade 3 or 4 Glasgow Coma Scores. Since 1998 we have changed our technique for decompressive craniectomy by creating vascular channels around the major vessels crossing the durotomy margin. Outcomes in 21 patients treated with this technique are compared to 20 patients treated with a conventional decompression and durotomy between 1997 through 1999. RESULTS: Clinical outcome was substantially better in the group treated with a vascular tunnel. CONCLUSIONS: Our results suggest that placing vascular tunnels at the margins of a durotomy when performing a decompression may reduce vascular congestion and the subsequent ischemia in brain tissue which herniates through the durotomy, leading to better clinical outcomes.

Brain Edema↗
PubMed2002

Dural arteriovenous fistula after craniotomy for pilocytic astrocytoma in a patient with protein S deficiency.

BACKGROUND: We report an unusual case, which may provide insight into the etiology and pathogenesis of dural arteriovenous malformation. CASE DESCRIPTION: A 24-year-old woman presented with hemorrhage into a pilocytic astrocytoma of the collicular plate. Angiography was normal and the tumor was surgically resected. She developed sigmoid sinus thrombosis and a transverse/sigmoid sinus dural arteriovenous fistula 11 months after this and was found to have protein S deficiency. The fistula was not treated. Angiography 4 years later was unchanged. CONCLUSION: This report illustrates an acquired etiology of a dural arteriovenous fistula. To our knowledge this is the first reported case of postoperative sigmoid sinus thrombosis along with arteriovenous fistula in a patient with previously undetected protein S deficiency.

Adult↗
PubMed1993

Combined transmandibular-zygomatic approach and infratemporal craniotomy for intracranial skull base tumors.

Large intracranial skull base tumors remain surgically treacherous lesions. The preauricular transzygomatic infratemporal approach to this area has rapidly gained popularity. This article presents modifications to this approach which improved visualization and access to the infratemporal fossa. The procedure increases visualization, minimizes brain retraction, and results in improved resection and outcome. Reconstruction is rapid and there are minimal functional and cosmetic deficits.

Bone Plates↗