Tasaki Tetsunori, Ohto Hitoshi
Department of Laboratory Medicine, Iwate Medical University, 19-1 Uchimaru, Morioka City, Iwate 020-8505, Japan.
Transfusion. 2007 Aug;47(8):1503-9. doi: 10.1111/j.1537-2995.2007.01290.x.
Under the rationale that children undergoing elective surgery are the best candidates for autologous blood donors because of their long life expectancy, aggressive donations of autologous blood, even from infants, have been reported. A number of problems are associated with the procedure, however, whereas the risks of homologous blood are very low.
From 1987 through 2005, of 5792 patients referred to blood transfusion services at two Japanese university hospitals for autologous blood donations, 314 children younger than 16 years old served as subjects for assessment.
Of 314 children, 7 were not suitable as autologous donors. In most cases this was due to uncooperative behavior. Over a follow-up period of 19 years, the authors encountered 53 cases (17.3%) of donation-related problems, and this rate was higher than the 6 percent rate recorded for adult cases (316/5305). Nine children suffered crucial complications such as vasovagal reactions, and one 14-year-old boy required a vasopressor drug. Important findings were that 6 of these were first-time donors, and the amount of blood drawn was under 10 percent of their estimated blood volume.
Of 53 donation-related problems, 9 (17.0%) were accompanied by marked hypotension. Drawing autologous blood from children has become easier with advanced devices; however, lessening of anxiety and tension are essential for the safety of children's autologous blood donation programs. Aggressive donation should be avoided.
基于择期手术患儿因预期寿命长而成为自体血捐献最佳候选者这一理论依据,已有报道称即使是婴儿也积极进行自体血捐献。然而,该操作存在诸多问题,而同种异体血的风险却非常低。
1987年至2005年期间,在日本两所大学医院输血服务部门接受自体血捐献转诊的5792例患者中,314名16岁以下儿童作为评估对象。
314名儿童中,7名不适合作为自体血捐献者。多数情况下是由于其不配合行为。在19年的随访期内,作者遇到53例(17.3%)与捐献相关的问题,该比例高于成人病例记录的6%(316/5305)。9名儿童出现了诸如血管迷走神经反应等严重并发症,一名14岁男孩需要使用血管升压药。重要的发现是其中6名是首次捐献者,且抽血量低于其估计血容量的10%。
在53例与捐献相关的问题中,9例(17.0%)伴有明显低血压。随着先进设备的出现,从儿童身上抽取自体血变得更加容易;然而,减轻焦虑和紧张对于儿童自体血捐献计划的安全至关重要。应避免过度捐献。