BACKGROUND Severe refractory anemia during pregnancy can cause serious maternal and fetal complications.If the cause cannot be identified in time and accurately,blind symptomatic support treatment may cause serious ec...BACKGROUND Severe refractory anemia during pregnancy can cause serious maternal and fetal complications.If the cause cannot be identified in time and accurately,blind symptomatic support treatment may cause serious economic burden.Thalassemia minor pregnancy is commonly considered uneventful,and the condition of anemia rarely progresses during pregnancy.Autoimmune hemolytic anemia(AIHA)is rare during pregnancy with no exact incidence available.CASE SUMMARY We report the case of a 30-year-oldβ-thalassemia minor multiparous patient experiencing severe refractory anemia throughout pregnancy.We monitored the patient closely,carried out a full differential diagnosis,made a diagnosis of direct antiglobulin test-negative AIHA,and treated her with prednisone and intravenous immunoglobulin.The patient gave birth to a healthy full-term baby.CONCLUSION Coombs-negative AIHA should be suspected in cases of severe hemolytic anemia in pregnant patients with and without other hematological diseases.展开更多
The purpose of this article is to report that some anti-A1 that react at 37°C are IgG antibodies and are clinically significant, as they can cause the destruction of a proportion of A1 cells in vivo following the...The purpose of this article is to report that some anti-A1 that react at 37°C are IgG antibodies and are clinically significant, as they can cause the destruction of a proportion of A1 cells in vivo following the transfusion of red blood cells. Therefore, when a serum of an individual contains anti-A1, further testing of the plasma against group A1, A2, and O by referencing red blood cells and individual cells against anti-A1 lectin (Dolichos biflorus lectin) must be performed. Confirming the specificity of anti-A1 by referencing red blood cells is also important in selecting the appropriate blood for transfusion. ABO antibodies are naturally occurring and activate the complement cascade, making them more likely to cause severe transfusion reactions compared to antibodies to other RBC antigens.展开更多
目的分析高胆红素血症患儿新生儿溶血病(hemolytic disease of newborn,HDN)血清学检测结果并探讨与其相关因素之间的关系。方法对796例高胆红素血症患儿的血样进行新生儿溶血三项试验,并分析HDN阳性率与血型、送检日龄、血红蛋白水平...目的分析高胆红素血症患儿新生儿溶血病(hemolytic disease of newborn,HDN)血清学检测结果并探讨与其相关因素之间的关系。方法对796例高胆红素血症患儿的血样进行新生儿溶血三项试验,并分析HDN阳性率与血型、送检日龄、血红蛋白水平及血清总胆红素值等因素的关系。结果 796例高胆红素血症患儿中HDN患儿184例(23.12%),其中ABOHDN 176例,Rh-HDN 8例。796例患儿血样检测结果中游离试验阳性180例(22.61%),释放试验阳性184例(23.12%),直抗试验阳性140例(17.59%)。B型血患儿HDN阳性率高于A型血患儿,差异有统计学意义(χ2=10.30,P<0.05)。HDN阳性率与送检日龄密切相关,且日龄越大阳性检出率越低,差异有统计学意义(P<0.05)。184例HDN阳性患儿血红蛋白水平及血清总胆红素值与HDN患儿差异有统计学意义(P<0.05)。结论高胆红素血症患儿HDN阳性率较高,应尽早进行溶血三项试验,并可结合血红蛋白水平及血清总胆红素值来提高HDN检出率。展开更多
目的：探讨直接抗人球蛋白试验（DAT）阳性患者的交叉配血方法。方法采用 DAT 法筛查红细胞表面的不规则抗体，微柱凝胶法进行血型鉴定，凝聚胺法和抗人球蛋白法交叉配血。结果共计5例 DAT 阳性的疑难配血患者，其血型分别为 A-DCcEe，O...目的：探讨直接抗人球蛋白试验（DAT）阳性患者的交叉配血方法。方法采用 DAT 法筛查红细胞表面的不规则抗体，微柱凝胶法进行血型鉴定，凝聚胺法和抗人球蛋白法交叉配血。结果共计5例 DAT 阳性的疑难配血患者，其血型分别为 A-DCcEe，O-DCCee，O-DCcee，A-DCCee 和 A-DCcee。选择相应血型抗原阴性的供者血样进行交叉配血，凝集强度均弱于自身对照，建议观察输注洗涤红细胞，患者未发生不良反应。结论对于 DAT 阳性的患者，可配合性输注相应血型抗原阴性的洗涤红细胞。展开更多
文摘BACKGROUND Severe refractory anemia during pregnancy can cause serious maternal and fetal complications.If the cause cannot be identified in time and accurately,blind symptomatic support treatment may cause serious economic burden.Thalassemia minor pregnancy is commonly considered uneventful,and the condition of anemia rarely progresses during pregnancy.Autoimmune hemolytic anemia(AIHA)is rare during pregnancy with no exact incidence available.CASE SUMMARY We report the case of a 30-year-oldβ-thalassemia minor multiparous patient experiencing severe refractory anemia throughout pregnancy.We monitored the patient closely,carried out a full differential diagnosis,made a diagnosis of direct antiglobulin test-negative AIHA,and treated her with prednisone and intravenous immunoglobulin.The patient gave birth to a healthy full-term baby.CONCLUSION Coombs-negative AIHA should be suspected in cases of severe hemolytic anemia in pregnant patients with and without other hematological diseases.
文摘The purpose of this article is to report that some anti-A1 that react at 37°C are IgG antibodies and are clinically significant, as they can cause the destruction of a proportion of A1 cells in vivo following the transfusion of red blood cells. Therefore, when a serum of an individual contains anti-A1, further testing of the plasma against group A1, A2, and O by referencing red blood cells and individual cells against anti-A1 lectin (Dolichos biflorus lectin) must be performed. Confirming the specificity of anti-A1 by referencing red blood cells is also important in selecting the appropriate blood for transfusion. ABO antibodies are naturally occurring and activate the complement cascade, making them more likely to cause severe transfusion reactions compared to antibodies to other RBC antigens.
文摘目的：探讨直接抗人球蛋白试验（DAT）阳性患者的交叉配血方法。方法采用 DAT 法筛查红细胞表面的不规则抗体，微柱凝胶法进行血型鉴定，凝聚胺法和抗人球蛋白法交叉配血。结果共计5例 DAT 阳性的疑难配血患者，其血型分别为 A-DCcEe，O-DCCee，O-DCcee，A-DCCee 和 A-DCcee。选择相应血型抗原阴性的供者血样进行交叉配血，凝集强度均弱于自身对照，建议观察输注洗涤红细胞，患者未发生不良反应。结论对于 DAT 阳性的患者，可配合性输注相应血型抗原阴性的洗涤红细胞。
