Abstract
Plasmatherapy has become empirically first-line treatment in atypical hemolytic uremic syndrome (aHUS), although no prospective controlled trials have been conducted. Patients with mutations that induce complete or partial factor H (FH) quantitative deficiency may be controlled by plasma infusions (PI), but plasma exchanges appear more efficient than PI in patients with mutations that result in a mutant dysfunctional FH in the circulation. Early treatment is crucial. Long-term prophylactic plasmatherapy appears more efficient to prevent end-stage renal disease (ESRD) than plasmatherapy only during relapses. However, the longest follow-up with preserved renal function under plasmatherapy is only 6.5 years. Plasmatherapy does not appear to influence the outcome of aHUS with membrane cofactor protein mutation, and its efficacy in patients with factor I, C3, or factor B mutations is suggested by a few reports. We hope complement blockers will offer patients a better chance to avoid ESRD and provide a better quality of life.
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