Aronstam A, McLellan D S, Wassef M, Mbatha P S
J Clin Pathol. 1982 Mar;35(3):289-91. doi: 10.1136/jcp.35.3.289.
The in vivo recovery of factor VIII has been estimated on 84 occasions in 53 severely affected adolescent haemophiliacs. There was wide individual variation in recovery, which was not affected by differences in the administered dose. Recovery increased steadily with increasing surface area, and it was only over a surface area of 1.7 m2 that a recovery of 2% of factor VIII per unit per kg became the norm. It is suggested that the only safe assumption to make below that surface area in an in vivo recovery of 1.5%.
在53名严重受影响的青少年血友病患者中,已在84个不同场合对凝血因子VIII的体内回收率进行了评估。回收率存在很大的个体差异,且不受给药剂量差异的影响。回收率随着体表面积的增加而稳步上升,只有当体表面积超过1.7平方米时,每千克每单位2%的凝血因子VIII回收率才成为常态。建议在体表面积低于该数值时,唯一安全的假设是体内回收率为1.5%。