Among 26,24 cases were from countryside and 23 cases had history of pregnancy induced hypertension syndrome(PIH),mainly characterized by subacute intracranial hypertension,increased blood viscosity and fibrinogen and strengthened platelet adhesiveness.

• 2 6例中有 2 4例来自农村 ,2 3例有妊高征病史 ,临床以亚急性高颅压症状为主 ,全血粘度及纤维蛋白原增高以及血小板粘附性增强。