RESUMEN
The surgical treatment of juvenile naso-pharyngeal angiofibroma involved a potential haemorrhagic risk: the average intra-operative blood loss was estimated at between 1,300 and 2,800 ml in many reports. Two cases are reported in which haemodilution and autologous blood transfusion were used. The method consisted in pre-operative repeated phlebotomies ("leap-frog") and normovolaemic acute haemodilution; thus, 1,700 ml of autologous blood was collected in the first case, and 2,300 ml in the second one. Autotransfusion was carried out and no homologous blood transfusion was used in the peri-operative period. The use of this method, although compelling, had many advantages (financial saving, suppression of adverse reactions with homologous transfusion, transfusion of fresh blood, reduction of postoperative oedema).