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  • 1
    ISSN: 1432-198X
    Keywords: Key words Blood transfusion ; Cyclosporine ; Renal transplantation ; Cytotoxic antibodies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Pretransplant transfusions were repeatedly shown to be associated with improved graft survival in the ”pre-cyclosporine era,” and have recently been shown to be beneficial in patients on modern immunosuppressive regimes. In an attempt to improve this transfusion effect and minimize the potential development of cytotoxic antibodies, we have given these transfusions, with concomitant cyclosporine cover, prior to transplantation. Ninety-two renal transplantations were performed in 91 children in the study group (group 1) and all received pretransplant transfusions with cyclosporine cover. Results were compared with a preceding group of 102 children (104 transplantations) who had received pretransplant transfusions without cyclosporine cover (group 2). There were 70 cadaver and 22 living-related donor (LRD) transplants in group 1, and 88 cadaver and 16 LRD transplants in group 2. Graft survival rates (1- and 5-year) for cadaver transplantation were 96% and 90% in group 1 compared with 78% and 64% in group 2 (P=0.001). For LRD transplantation, these figures were 95% and 87% in group 1 and 81% and 69% in group 2. There was no difference between the two groups in terms of age at transplantation, sex, donor age, HLA-A, -B, -DR mismatches, or cold and warm ischemia times. All cadaver graft recipients received quadruple, sequential immunosuppression post transplant. However, 9 patients in group 1 were changed to tacrolimus for recurrent rejection episodes. No patient developed persistent lymphocytotoxic antibodies post transfusion or side effects of cyclosporine. Cyclosporine can be safely given with whole blood prior to transplantation with no adverse effect and no sensitization. Graft survival was significantly improved in this group of patients and graft loss due to rejection was exceptional. This effect should be further evaluated in prospective studies.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-198X
    Keywords: Haemolytic uraemic syndrome ; Prognosis ; Atypical form
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Previous studies have shown that age at onset of primary haemolytic uraemic syndrome (HUS) is a feature of prognostic significance, the disease being of much better outcome in paediatric patients younger than 3 years than in older children. In an attempt to find an explanation for such a difference, we analysed the clinical and pathological features of 42 children over 3 years of age who presented with HUS between 1955 and 1990 in our department. On the basis of the presence of a prodromal diarrhoea, we divided our patients into two groups: 21 children presented with the diarrhoea-associated (typical or D+) form of HUS, whereas 21 had the non-diarrhoea-associated (atypical or D-) form. Of the 42 children, 20 (47.5%) progressed to end-stage renal failure. However, our study shows that age at onset of HUS is not a prognostic feature per se. The difference in outcome between children and infants is most likely related to the high incidence of the atypical subset of HUS in children over 3 years, a subset that is very uncommon in infants. The ominous features which characterise this form of the disease are: (1) the absence of a diarrhoeal prodrome, (2) normal urine output, (3) marked proteinuria, (4) hypertension, (5) the occurrence of relapses or recurrences and (6) the presence of widespread and severe arteriolar changes on renal biopsy. The poor prognosis of the atypical form of HUS warrants the use of fresh-frozen plasma infusions and/or plasma exchange as early as possible in the course of the disease.
    Type of Medium: Electronic Resource
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