Roles of subarachnoid blood clots and norepinephrine in cerebral vasospasm.

The content of norepinephrine (NE) in the ventricular, basal cisternal and lumbar cerebrospinal fluid (CSF) was determined in 19 patients with ruptured cerebral aneurysms. The cisternal CSF in patients with vasospasm contained a significantly higher level of NE (0.246 +/- 0.

Selective destruction of the outer leaflet of the capillary endothelial membrane after intracerebral injection of arachidonic acid in the rat.

A peculiar ultrastructural change of the cytoplasmic membrane is described. It concerns selective destruction of the outer leaflet of the luminal side of the capillary endothelium in the white matter of the rat brain, 30 min and 3 h after intracerebral injection of arachidonic acid (AA). The cristae of the mitochondria disappeared in the endothelium of many capillaries.

Phase I-II trials of poly(ICLC) in malignant brain tumor patients.

Poly(ICLC) preparation, containing poly-L-lysine and poly(I) . poly(C) at a weight ratio of 1:2, was given intravenously at a dose of 0.05 to 0.

[Morphological and endocrinological study of ovarian arrhenoblastoma (author's transl)].

Morphological and endocrinological studies were performed on a 19-year-old case of an arrhenoblastoma with marked virilization. The tumor was an intermediate type of Meyer's classification. Histochemically, 3 beta-HSD and G-6-PDH activities were demonstrated in Leydig cells.

Percutaneous radiofrequency facial nerve coagulation in the management of facial spasm.

The authors have developed a fluoroscopy-assisted technique of percutaneous radiofrequency facial nerve coagulation at or near the stylomastoid foramen for management of facial spasm. The details of the procedure and the operative results in the initial series of 27 cases of facial spasm are described. The series included six men and 21 women, aged from 16 to 73 years.

Red cell preservation and removal system of purine derivatives.

The new preservative containing high concentrations of adenine (8 mM), inosine (40 mM) and other chemicals which was indicated by Nakao et al., was applied to the preservation of red cell concentrates. Moreover, the system for the removal of purine derivatives (adenine, inosine and hypoxanthine) added and produced in stored samples was developed, using bead activated charcoal coated with the blood-compatible polymer (Hydron).

Characteristics of intracranial meningiomas in childhood.

18 cases of meningiomas in childhood below the age of 15 years at the onset of symptoms and signs were experienced in our clinic. They were studied as for the incidence, age and sex distributions, symptoms and signs at the onset, tumor locations, histological types, presence of cyst, dural attachments, and prognosis, in comparison with cases in adolescence (18 cases) and in adults (498 cases). Distinctive features in childhood meningiomas were: (1) relatively high incidence in the lateral ventricles (11.

Anterior sacral meningocele discovered by whole body computerized tomography: case report.

A case of anterior sacral meningocele which was clearly visualized on whole body computerized tomography is presented. Posterior surgical approach with ligation of the narrow communication between the sacral dural sac and the meningocele alleviated the subjective complaints of a feeling of abdominal distention and of dysuria. For the purpose of postoperative follow-up study, examination by whole body computerized tomography proved to be the best method of evaluating the size of the meningocele and also the state of neighbouring structures.