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31.
32.
P H Bolton-Maggs P D Rogan J K Duguid K J Mutton L M Ball 《Archives of disease in childhood》1991,66(6):732-733
Eleven haemophiliac boys infected with HIV were screened for irregular red cell antibodies and were compared with nine haemophiliac boys who did not have antibodies to HIV. Seven (64%) of the children who had antibodies to HIV also had cold agglutinins, mostly of anti-I specificity, compared with one (11%) of those who did not have antibodies to HIV. The children with antibodies to HIV and cold agglutinins had a significantly increased mean IgM concentration. The presence of cold agglutinins was not correlated with T4 lymphocyte count, symptoms of HIV infection, serum beta 2 microglobulin concentrations, concentrations of IgG or IgA, or with the evidence of past infection with cytomegalovirus or Epstein-Barr virus. 相似文献
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34.
Gibson BES Bolton—Maggs PHB Pamphilon D Roberts I Todd A Rodeck C Durbin Duguid J Boulton F Cohen H McClelland DBL Rowley M Smith N Turner G 洪缨 《国际输血及血液学杂志》2003,26(6):562-567
背景 英国血液学会(BCSH)首次在1994年发布了新生儿输血标准,“血液制品管理规范:婴儿和新生儿输血”。本标准强调许多当时广泛接受的输血经验,缺乏科学证据,特别是新生儿输血,通常基于过时的信息,寻找有科学支持推荐替代这些输血经验,或至少是充足的赞同。这些标准对实践有积极影响(例如,排除流动供者,输血前验收检测标准,采用多联袋),在一些地方,随后发行的标准和输血实践中的改进(如血液成分自细胞去除和FFP 相似文献
35.
Newton JL Reese JA Watson SI Vesely SK Bolton-Maggs PH George JN Terrell DR 《European journal of haematology》2011,86(5):420-429
Background: Patients with primary immune thrombocytopenia (ITP) commonly describe symptoms of fatigue. However, hematologists rarely consider fatigue a manifestation of ITP. Objectives: To document the prevalence of fatigue among patients with ITP and to determine the patient characteristics that are associated with fatigue. Methods: Using a cross‐sectional design, we surveyed 1871 members of the UK ITP Support Association [585 (31%) responded], and 93 patients enrolled in the Oklahoma (US) ITP Registry [68 (73%) responded] with questions about their ITP and with validated symptom assessment scales for fatigue, daytime sleepiness, and orthostatic symptoms. Results: The prevalence of fatigue among both UK (39%) and US (22%) patients was significantly greater than expected compared with normal subjects (P < 0.0001 and P < 0.0001 respectively). In univariate analysis of the combined cohorts, fatigue was associated with a platelet count <100 000/μL, treatment with steroids, bleeding symptoms, presence of other medical conditions, daytime sleepiness, and orthostatic symptoms. Fatigue was not associated with age, gender, duration of ITP, or splenectomy status. Multivariate analysis of the combined cohorts was stratified for the presence or absence of bleeding symptoms. Among 107 patients with bleeding symptoms, fatigue was independently associated with a platelet count <100 000/μL and female gender. Among 491 patients without bleeding symptoms, fatigue was independently associated with a platelet count <30 000/μL, presence of other medical conditions, daytime sleepiness, and orthostatic symptoms. Conclusions: Fatigue is a common symptom among patients with ITP. These data provide the basis for future studies to define the clinical importance of fatigue in ITP. 相似文献
36.
Davies JM Lewis MP Wimperis J Rafi I Ladhani S Bolton-Maggs PH;British Committee for Standards in Haematology 《British journal of haematology》2011,155(3):308-317
Guidelines for the prevention and treatment of infection in patients with an absent or dysfunctional spleen were first published by the British Committee for Standards in Haematology (BCSH) in 1996 and formally reviewed in 2002. Although the guidelines originated from discussion within the BCSH, the intended readership is wide given the multidisciplinary nature of the management of hyposplenism. 相似文献
37.
Massey E Harding K Kahan BC Llewelyn C Wynn R Moppett J Robinson SP Green A Lucas G Sadani D Liakopoulou E Bolton-Maggs P Marks DI Stanworth S 《Transfusion medicine (Oxford, England)》2012,22(4):277-284
Objective/Aim: To evaluate the safety of transfusing pooled, whole blood‐derived granulocytes in additive solution and plasma (GASP) in 30 recipients. Background: Demand for granulocytes in England has increased five‐fold. With the advantages of reduced red cell, plasma and overall volume, GASP maintains function in vitro. Methods and Materials: Observations were recorded prior to and post transfusion. Increments were recorded at 1 h and the following morning. Leucocyte antibody screening was undertaken prior to and at 1–6 months following transfusion. Results: Thirty patients aged between 8 months and 68 years received 221 GASP in 148 transfusion episodes. GASP contained an average of 1·0 ×1010 granulocytes in 207 mL. Adults usually received two packs and children 10–20 mL kg–1. Children and adults received a median [interquartile range (IQR)] dose of 12·5 (9·1–25·3) and 19·7 (12·0–25·8) ×109 granulocytes per transfusion, respectively. There was one episode of transfusion‐associated circulatory overload (TACO) in a patient with chronic cardiac failure following 600 mL of unpooled granulocytes, other fluids and one GASP. New l eucocyte alloimmunisation occurred in 3/30 recipients 10%. No other significant reactions were reported. Median peripheral blood neutrophil increments at 1 h post transfusion were 0·06 (IQR, 0·01–0·17) in children and (0·03) (IQR, 0–0·16) in adults. Conclusion: GASP has a similar safety profile to other sources of granulocytes for patients with refractory infection or in need of secondary prophylactic transfusion. Further studies are required to clarify the role of GASP in the treatment of neutropenic patients. 相似文献
38.
Immune thrombocytopenic purpura (ITP) is an autoimmune disorder characterized by a low circulating platelet count caused by destruction of antibody-sensitized platelets in the reticuloendothelial system. ITP can be classified as childhood versus adult, acute versus chronic, and primary versus secondary. Persistence of thrombocytopenia defines the chronic form of the disorder. Secondary causes of ITP include collagen vascular disorders, immune deficiencies, and some chronic infections. This review focuses on the diagnosis and management of children who have acute and chronic ITP. Emphasis is placed on areas of controversy and new therapies. 相似文献
39.
Factor XI deficiency and its management 总被引:2,自引:0,他引:2
Bolton-Maggs 《Haemophilia》2000,6(S1):100-109
Factor XI deficiency has a more variable bleeding tendency than haemophilia A or B. Individuals with severe deficiency have only a mild bleeding tendency, which is typically provoked by surgery, but the risk of bleeding is not restricted to individuals with severe deficiency. The bleeding tendency varies between individuals with similar factor XI levels, and sometimes the bleeding tendency of an individual may vary. The reasons for this are not fully understood, although in cases of severe deficiency there is some correlation between phenotype and genotype.
Factor XI is activated by thrombin. The role of factor XI in physiological processes has become clearer since this fact was discovered, and the discovery has contributed to a revised model of blood coagulation. Factor XI deficiency occurs in all racial groups, but is particularly common in Ashkenazi Jews. The factor XI gene is 23 kilobases long. Two mutations are responsible for most factor XI deficiency in the Ashkenazi population, but a number of other mutations have now been reported in other racial groups.
Individuals with factor XI deficiency may need specific therapy for surgery, accidents, and dental extractions. Several therapies are available which include fresh frozen plasma, factor XI concentrates, fibrin glue, antifibrinolytic drugs, and desmopressin. Each has advantages and risks to be considered. Factor XI concentrate may be indicated for procedures with a significant risk of bleeding especially in younger patients with severe deficiency, but its use in older patients has been associated with thrombotic phenomena. If fresh frozen plasma is to be used it is preferable to obtain one of the virally inactivated products. Fibrin glue is a useful treatment which deserves further study. 相似文献
Factor XI is activated by thrombin. The role of factor XI in physiological processes has become clearer since this fact was discovered, and the discovery has contributed to a revised model of blood coagulation. Factor XI deficiency occurs in all racial groups, but is particularly common in Ashkenazi Jews. The factor XI gene is 23 kilobases long. Two mutations are responsible for most factor XI deficiency in the Ashkenazi population, but a number of other mutations have now been reported in other racial groups.
Individuals with factor XI deficiency may need specific therapy for surgery, accidents, and dental extractions. Several therapies are available which include fresh frozen plasma, factor XI concentrates, fibrin glue, antifibrinolytic drugs, and desmopressin. Each has advantages and risks to be considered. Factor XI concentrate may be indicated for procedures with a significant risk of bleeding especially in younger patients with severe deficiency, but its use in older patients has been associated with thrombotic phenomena. If fresh frozen plasma is to be used it is preferable to obtain one of the virally inactivated products. Fibrin glue is a useful treatment which deserves further study. 相似文献
40.
Idiopathic thrombocytopenic purpura. 总被引:1,自引:0,他引:1
P H Bolton-Maggs 《Archives of disease in childhood》2000,83(3):220-222
Idiopathic thrombocytopenic purpura in children usually a self limiting disorder. It may follow a viral infection or immunisation and is caused by an inappropriate response of the immune system. About 20-30% of children will fail to remit over six months (chronic idiopathic thrombocytopenic purpura). This is more likely in older children, especially girls. The disease is reviewed with reference to diagnosis, investigation, and management options. 相似文献