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Biomedical subjects

H Handa

Publications and source records attributed to H Handa.

At least 541 records · Page 30Linked to original sources

Basilar artery occlusion in childhood: report of a case.

Basilar artery occlusion occurred in a 13-year-old boy. Eighteen cases in children reported in the literature were also analyzed. Basilar artery occlusion is more common in males. The main clinical manifestations are disturbance in consciousness, hemiplegia or quadriplegia, and pupillary abnormalitites. The prognosis is better in children than in adults.

Adolescent↗

Clinical analysis of arachnoid cysts in the middle fossa.

This paper describes the clinical picture and radiological findings of 12 cases of "idiopathic" arachnoid cyst in the middle fossa which the authors have encountered during the past 12 years. Their results are as follows. 1) The age of the patient in 10 out of 12 cases was under 15 years of age, and 8 cases were males. The site of the cyst was on the left side in 9 cases. 2) On plain skull radiography, thinning and bulging of the temporal bone by the lesion, elevation of the lesser wing of the sphenoid, and forward projection of the greater wing of the sphenoid were observed in all cases. 3) On cerebral angiography, a characteristic elevation of the middle cerebral artery and hypoplasia of its insular and opercular portion were observed; and in the venous phase, a defect of the middle cerebral vein, backward deviation of the vein of Labbé, and elevation of the vein of Rosenthal were seen. 4) On Metrizamide (Amipaque) CT cisternography, there were two types, one which communicated and the other which did not communicate with the adjacent subarachnoid space.

Adolescent↗

Cerebral hemodynamic changes during plateau waves in brain-tumor patients.

The plateau wave, one of the wave forms observed in patients with increased intracranial pressure, has previously been extensively investigated, but its pathophysiological aspect is as yet unclear. The authors undertook a study of cerebral hemodynamic changes while the plateau waves were observed in five brain-tumor patients. Although the number of cases studied was small, a remarkable decrease in cerebrovascular resistance was seen in all patients during the plateau waves. It is suggested that the plateau waves are caused by a marked cerebral vasodilatation. The present results support the thesis that cerebral blood volume is increased during the plateau waves. The plateau waves are closely related to the intrinsic vasomotor control of cerebral circulation, and can occur as long as cerebral vasodilating ability is maintained, irrespective of the existence of cerebral autoregulation.

Adult↗