Because of the great variety of
lesions, preanesthetic evaluation must start by obtaining full history of
the disease and meticulous clinical examination. Because of the high
frequency of organ involvement, some evaluation should be systematic:
evaluate pulmonary function (clinical, pulmonary function test, arterial
blood gas analysis, chest radiographs, CT), liver function (clinical,
echography, CT, MRI, laboratory investigations including albumin,
transamidinases, bilirubin, prothrombin), and nervous function (clinical,
CT, MRI, EEG). Other evaluations based on clinical signs (cardiac
echography, hormonal investigations, hydration, platelet count, blood
cell count).