Pérez Ferrer A, Ferrazza V, Gredilla E, de Vicente J, de la Rua A, Larrea A
Anaesthesia and Resuscitaiton Unit, La Paz University Children's Hospital, Madrid, Spain.
Minerva Anestesiol. 2007 May;73(5):323-6.
A patient with thalassemia minor and idiopathic scoliosis was scheduled for posterior vertebral arthrodesis. The diagnosis of thalassemia minor was made during the preoperative assessment. Preoperative blood cell count displayed the following data: red blood count 5.4 x 106/microL, haemoglobin 11.6 g/dL and hematocrit 36.9%. As corrective surgery for scoliosis is associated with major blood loss, the patient was scheduled for preoperative treatment with human recombinant erythropoietin (rHuEPO), autologous blood donation, intraoperative blood cell salvage and administration of tranexamic acid. The use of rHuEPO was intended to increase hemoglobin (12.1 g/dL) levels at the moment of surgery following the donation of 2 autologous blood units. 1000 mL of salvaged blood were processed. The output line of the blood cell salvage machine did not show any sign of increased red cell haemolysis. The postoperative course was uneventful and the patient was discharged from the postoperative intensive care unit on day 7 after surgery with no allogenic blood transfusion. No references detailing the use of rHuEPO and autologous blood donation preoperatively in patients with thalassemia minor and only one case report discussed the utility of intraoperative blood cell salvage in a patient with thalassemia intermedia. Although further experience is needed, this case report suggests that even for patients with thalassemia minor, methods focused on allogenic blood salvage can be used safely.
一名轻度地中海贫血合并特发性脊柱侧凸的患者计划接受后路椎体融合术。轻度地中海贫血的诊断是在术前评估时做出的。术前血细胞计数显示以下数据:红细胞计数5.4×10⁶/微升,血红蛋白11.6克/分升,血细胞比容36.9%。由于脊柱侧凸矫正手术会导致大量失血,该患者计划接受术前治疗,包括使用重组人促红细胞生成素(rHuEPO)、自体献血、术中血细胞回收和氨甲环酸的应用。使用rHuEPO的目的是在捐献2个单位自体血后,使手术时的血红蛋白水平提高到12.1克/分升。回收处理了1000毫升血液。血细胞回收机的输出管道未显示红细胞溶血增加的迹象。术后过程顺利,患者术后第7天从术后重症监护病房出院,未接受异体输血。目前尚无详细描述轻度地中海贫血患者术前使用rHuEPO和自体献血的参考文献,仅有一篇病例报告讨论了中间型地中海贫血患者术中血细胞回收的效用。尽管还需要更多经验,但本病例报告表明,即使对于轻度地中海贫血患者,专注于异体血挽救的方法也可安全使用。