Sporadic schwannomas and neurofibromas

Anesthesia
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By Herbert B Newton MD

There are concerns regarding the presence or absence of elevated intracranial pressure during the induction, maintenance, and emergence from anesthesia that are common to surgical therapy of any brain tumor (LaSala et al 1991; Cucchiara et al 1995). In schwannoma patients who have elevated intracranial pressure, agents that produce excessive sedation and ventilatory depression should be avoided because these could exacerbate intracranial pressure. Hypotonic fluids should also be avoided whenever possible. During the induction and maintenance of anesthesia, agents that minimize hypertension, cerebral vasodilation and blood flow, cerebral metabolic rate, chest wall rigidity, and hypercapnia should be chosen (LaSala et al 1991; Cucchiara et al 1995).

In This Article

Introduction
Historical note and nomenclature
Clinical manifestations
Clinical vignette
Etiology
Pathogenesis and pathophysiology
Epidemiology
Prevention
Differential diagnosis
Diagnostic workup
Prognosis and complications
Management
Pregnancy
Anesthesia
References cited
Contributors