Cerebral edema, which is the most dangerous DKA complication, is probably the result of a number of factors. Some authorities suggest that it is the result from overvigorous fluid replacement, but the complication may develop before treatment has been commenced. It is more likely in those with more severe DKA, and in the first episode of DKA. Likely factors in the development of cerebral edema are dehydration, acidosis and low carbon dioxide levels; in addition, the increased level of inflammation and coagulation may, together with these factors, lead to decreased blood flow to parts of the brain, which then swells up once fluid replacement has been commenced. The swelling of brain tissue leads to raised intracranial pressure ultimately leading to death.