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Published in: European Journal of Pediatrics 11/2018

01-11-2018 | Original Article

A simple prognostic index for Shigatoxin-related hemolytic uremic syndrome at onset: data from the ItalKid-HUS network

Authors: Gianluigi Ardissino, Francesca Tel, Sara Testa, Fabio Paglialonga, Selena Longhi, Laura Martelli, Silvia Consolo, Damiano Picicco, Antonella Dodaro, Laura Daprai, Rosaria Colombo, Milena Arghittu, Michela Perrone, Giovanna Chidini, Stefano Scalia Catenacci, Isabella Cropanese, Dario Consonni, on behalf of the ItalKid-HUS Network

Published in: European Journal of Pediatrics | Issue 11/2018

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Abstract

Shigatoxin Escherichia coli-related hemolytic uremic syndrome (eHUS) is a severe thrombotic microangiopathy (TMA) burdened by life-threatening complications and long-term sequelae. Since hemoconcentration is associated with worse outcome, we tried to develop a reliable and easy-to-calculate index for predicting complications and sequelae based on hemoglobin (Hb) at presentation. The first laboratory examinations with signs of TMA in eHUS patients were analyzed in relation to the outcomes with the receiver operating characteristic curves and their areas under the curve (AUC) for Hb and creatinine (sCr). A total of 197 eHUS patients were identified of whom 24% did not have anemia at presentation. Hb level was the best predictor of a poor outcome (AUC 0.67) but the combination of Hb with sCr, in the formula [(Hb in g/dL + (sCr in mg/dL × 2)], showed an even better AUC of 0.75. The described scoring system was also strongly associated and predictive of all complications and health care needs (8% of patients with scoring > 13 died or entered a permanent vegetative state compared with 0% of those with ≤ 13).
Conclusion: The presented score is a simple and early predictor of both short- and long-term outcomes and identifies patients who should undergo rapid volume expansion to counteract hemoconcentration, the spreading of microvascular thrombosis, and the consequent increased organ damage.
What is Known:
• In eHUS, hemoconcentration is associated with worse short- and long-term outcome.
• A prognostic index to identify patients at higher risk for complications at presentation is not available.
What is New:
• We developed a simple and early prognostic index for eHUS outcome with the combination of Hb and sCr at onset, in the following formula [(Hb in g/dL + (sCr in mg/dL × 2)].
• The proposed HUS Severity Score can promptly identify patients with good outcome and those with high risk of worse short- and long-term outcome.
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Metadata
Title
A simple prognostic index for Shigatoxin-related hemolytic uremic syndrome at onset: data from the ItalKid-HUS network
Authors
Gianluigi Ardissino
Francesca Tel
Sara Testa
Fabio Paglialonga
Selena Longhi
Laura Martelli
Silvia Consolo
Damiano Picicco
Antonella Dodaro
Laura Daprai
Rosaria Colombo
Milena Arghittu
Michela Perrone
Giovanna Chidini
Stefano Scalia Catenacci
Isabella Cropanese
Dario Consonni
on behalf of the ItalKid-HUS Network
Publication date
01-11-2018
Publisher
Springer Berlin Heidelberg
Published in
European Journal of Pediatrics / Issue 11/2018
Print ISSN: 0340-6199
Electronic ISSN: 1432-1076
DOI
https://doi.org/10.1007/s00431-018-3198-7

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