Urgent reoperation for major regional complications after removal of intracranial tumors: outcome and prognostic factors in 100 consecutive cases.

Outcome of urgent reoperation for major regional complication after removal of intracranial tumor was evaluated retrospectively in 100 consecutive patients treated since 1983. Urgent reoperation was performed from 3 to 240 hours (mean 74 hours) after primary surgery for 32 meningiomas, 23 pituitary adenomas, 22 gliomas, 13 vestibular schwannomas, and 10 other intracranial neoplasms. Mean Glasgow Coma Scale (GCS) score before reoperation was 8.

Reduction of blood flow in the brain stem and cerebellum caused by petroclival tumors.

Blood flow in the brain stem (BSBF) and cerebellum (CerBF) was investigated by positron emission tomography in 12 patients with petroclival tumors (study group) and 14 healthy volunteers (control group). (15)O-labeled water was used as the radioisotope tracer. BSBF and ipsilateral CerBF were significantly lower in the study group compared with the control group (p < 0.

Complete recovery of visual functions after multimodality treatment for intrinsic chiasmatic-hypothalamic astrocytoma--case report.

A 21-year-old female was admitted with complaints of severe impairment of vision. The visual acuity was 0.02 in both eyes along with residual visual fields and central scotomas.

[Racemose arteriovenous angioma (malformation) of the brain].

242 cases of brain arterio-venous malformations (AVM) are analysed clinically and anatomically. Their pathology, histological, ultrastructural and immunohistochemical characteristics, therapeutic pathomorphosis are described. The concept is suggested according to which AVM is a collective term including true developmental defects, dysembryogenetic tumors and outcomes of various pathologic processes (trauma, brain circulation and compensatory-adaptive disturbances, etc.

Arteriovenous malformation of the cervical spinal cord with unusual drainage into the cranial cavity.

A case of arteriovenous malformation of the cervical cord 20 years in duration, studied angiographically, using computerized tomography scans and magnetic resonance images, as well as findings at autopsy are presented. The malformation was fed by the right vertebral artery, which entered a giant saccular aneurysm-like structure located subdurally on posterior spinal cord surface, and terminated there. Plenty of vessels of various diameter were found in the spinal cord substance at this level (C4-C6).

Treatment of patients with intracranial arterial aneurysms in the haemorrhagic period.

Our research protocol was implemented in the treatment of 395 patients in the acute period following aneurysmal subarachnoid haemorrhage. Patients are classified as follows: Compensated (roughly Hunt and Hess I-II); Subcompensated (Hunt and Hess III); and Decompensated (Hunt and Hess IV-V). Only patients in the compensated state are deemed candidates for acute surgery.

Coexistent hemangioblastoma and arteriovenous malformation of the cerebellum. Case report.

A case of cerebellar hemangioblastoma and coexistent arteriovenous malformation (AVM) is presented. Angiography displayed the AVM, but histological examination revealed a coexisting hemangioblastoma. Various theories concerning the etiology of this condition are discussed.