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Preoperative shunts in thalamic tumours.

Author(s): Goel A

Journal: Neurology India
ISSN 0028-3886

Volume: 48;
Issue: 4;
Start page: 347;
Date: 2000;
Original page

Keywords: Adolescent | Adult | Brain Neoplasms | physiopathology | surgery | Cerebrospinal Fluid Shunts | adverse effects | Child | Female | Glioma | physiopathology | surgery | Human | Hydrocephalus | physiopathology | surgery | Male | Postoperative Complications | Preoperative Care | methods | Thalamic Diseases | physiopathology | surgery | Ventricular Pressure

Thirty one patients with thalamic glioma underwent a pre-tumour resection shunt surgery. The procedure was uneventful in 23 patients with relief from symptoms of increased intracranial pressure. Eight patients worsened after the procedure. The level of sensorium worsened from excessively drowsy state to unconsciousness in seven patients. Three patients developed hemiparesis, 4 developed paresis of extra-ocular muscles and altered pupillary reflexes, and 1 developed incontinence of urine and persistent vomiting. Alteration in the delicately balanced intracranial pressure and movements in the tumour and vital adjacent brain areas could be the probable cause of the worsening in the neurological state in these 8 patients. On the basis of these observations and on review of literature, it is postulated that the ventricular dilatation following an obstruction in the path of the cerebrospinal fluid flow by a tumour could be a natural defense phenomenon of the brain.

Tango Jona
Tangokurs Rapperswil-Jona

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