• Yahsou Delmas, Benoît Vendrely, Benjamin Clouzeau, Hiba Bachir, Hoang-Nam Bui, Adeline Lacraz, Sébastien Hélou, Cécile Bordes, Armel Reffet, Brigitte Llanas, Sophie Skopinski, Patrick Rolland, Didier Gruson, and Christian Combe.
• Service de Néphrologie Transplantation Dialyse, Centre Hospitalier Universitaire de Bordeaux, Bordeaux, France.
• Nephrol. Dial. Transplant. 2014 Mar 1;29(3):565-72.

BackgroundAn outbreak of haemolytic uraemic syndrome (HUS) due to Shiga toxin-secreting Escherichia coli (STEC) O104:H4 from contaminated fenugreek sprouts occurred in June 2011 near Bordeaux, France. In the context of this outbreak, all patients were treated with the monoclonal anti-C5 antibody, eculizumab.MethodsThe diagnosis of HUS was made based on haemolytic anaemia, low platelet count and acute kidney injury. Data were obtained from initial gastrointestinal symptoms to the end of follow-up 10 weeks after the start of eculizumab.ResultsAmong 24 cases of STEC gastroenteritis, HUS developed in nine patients (eight adults and one child), 6 (median; range 3-12) days after digestive symptoms begun. The median (range) highest or lowest biological values were platelet count 26 (range 14-93) G/L; haemoglobin 6.6 (range 5-10.7) g/dL; LDH 1520 (range 510-2568) IU/L; creatinine 152 (range 48-797) µmol/L. All patients had extra-renal complications (liver 9, pancreas 5, brain 3 and heart 3). Two patients were dialysed, and one was ventilated. After failure of plasma exchange to increase platelets in the first three patients, eculizumab was administered in all nine patients, 0-4 days after HUS diagnosis (median 1 day). One patient with very severe neurological HUS received immunoadsorption. Outcome was favourable in all patients, with rapid normalization of haemoglobin, platelets, LDH levels, renal function and neurological improvement. There were no deaths and no serious adverse events related to eculizumab.ConclusionsEarly treatment of O104:H4 STEC-HUS by eculizumab was associated with a rapid and efficient recovery. Controlled prospective evaluation of eculizumab in STEC-HUS is warranted.

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