Patent ID: 8409624

Claim:
A method for reducing cerebral edema incidence in brain surgery, comprising the steps of: irrigating or perfusing the intracranium or the cerebrospinal cavity of a brain surgery patient with an artificial cerebrospinal fluid, or replenishing lost cerebrospinal fluid of a brain surgery patient with the artificial cerebrospinal fluid, wherein said irrigation, perfusion or replenishment reduces the incidence of cerebral edema in said patient, wherein the artificial cerebrospinal fluid consists of electrolytic ions in the following concentration ranges: 120 to 160 mEq/L of sodium ion, 1 to 6 mEq/L of potassium ion, 75 to 155 mEq/L of chloride ion, 5 to 45 mEq/L of bicarbonate ion, 0.5 to 5 mEq/L of calcium ion, 0.5 to 5 mEq/L of magnesium ion, 0.1 to 5 mmol/L of phosphoric acid, and 0.1 to 10 g/L of a reducing sugar, and wherein the artificial cerebrospinal fluid has a pH in a range from 6.8 to 8.2.