Development and initial validation of the macrophage activation syndrome/primary hemophagocytic lymphohistiocytosis score, a diagnostic tool that differentiates primary hemophagocytic lymphohistiocytosis from macrophage activation syndrome

Donato Rigante, Francesca Minoia, Francesca Bovis, Sergio Davì, Antonella Insalaco, Kai Lehmberg, Susan Shenoi, Sheila Weitzman, Graciela Espada, Yi-Jin Gao, Jordi Anton, Toshiyuki Kitoh, Ozgur Kasapcopur, Helga Sanner, Rosa Merino, Itziar Astigarraga, Maria Alessio, Michael Jeng, Vyacheslav Chasnyk, Kim E. NicholsZeng Huasong, Caifeng Li, Concetta Micalizzi, Nicolino Ruperto, Alberto Martini, Randy Q. Cron, Angelo Ravelli, Annacarin Horne, Mario Abinun, Amita Aggarwal, Jonathan Akikusa, Sulaiman Al-Mayouf, Maria Teresa Apaz, Tadej Avcin, Nuray Aktay Ayaz, Patrizia Barone, Bianca Bica, Isabel Bolt, Luciana Breda, Rolando Cimaz, Fabrizia Corona, Ruben Cuttica, Zane Davidsone, Carmen De Cunto, Jaime De Inocencio, Erkan Demirkaya, Eli M. Eisenstein, Sandra Enciso, Michel Fischbach, Michael Frosch, Romina Gallizzi, Maria Luz Gamir, Thomas Griffin, Alexei Grom, Soad Hashad, Teresa Hennon, Jan-Inge Henter, Gerd Horneff, Adam Huber, Norman Ilowite, Maka Ioseliani, Agneza Marija Kapović, Raju Khubchandani, Isabelle Koné-Paut, Sheila Knupp Feitosa De Oliveira, Bianca Lattanzi, Loredana Lepore, Jeffrey M. Lipton, Silvia Magni-Manzoni, Despoina Maritsi, Deborah Mccurdy, Paivi Miettunen, Velma Mulaosmanovic, Susan Nielsen, Seza Ozen, Priyankar Pal, Sampath Prahalad, Ingrida Rumba-Rozenfelde, Ricardo Russo, Claudia Saad Magalhães, Wafaa Mohamed Saad Sewairi, Clovis Artur Silva, Valda Stanevicha, Gary Sterba, Kimo C. Stine, Gordana Susic, Flavio Sztajnbok, Syuji Takei, Ralf Trauzeddel, Elena Tsitsami, Erbil Unsal, Yosef Uziel, Olga Vougiouka, Carol A. Wallace, Lehn Weaver, Jennifer E. Weiss, Carine Wouters, Nico Wulffraat, Mabruka Zletni, Maurizio Arico, R. Maarten Egeler, Alexandra H. Filipovich, Helmut Gadner, Shinsaku Imashuku, Gritta Janka, Stephan Ladisch, Ken L. Mcclain, David Webb

Risultato della ricerca: Contributo in rivistaArticolo in rivista

26 Citazioni (Scopus)

Abstract

OBJECTIVE: To develop and validate a diagnostic score that assists in discriminating primary hemophagocytic lymphohistiocytosis (pHLH) from macrophage activation syndrome (MAS) related to systemic juvenile idiopathic arthritis. STUDY DESIGN: The clinical, laboratory, and histopathologic features of 362 patients with MAS and 258 patients with pHLH were collected in a multinational collaborative study. Eighty percent of the population was assessed to develop the score and the remaining 20% constituted the validation sample. Variables that entered the best fitted model of logistic regression were assigned a score, based on their statistical weight. The MAS/HLH (MH) score was made up with the individual scores of selected variables. The cutoff in the MH score that discriminated pHLH from MAS best was calculated by means of receiver operating characteristic curve analysis. Score performance was examined in both developmental and validation samples. RESULTS: Six variables composed the MH score: age at onset, neutrophil count, fibrinogen, splenomegaly, platelet count, and hemoglobin. The MH score ranged from 0 to 123, and its median value was 97 (1st-3rd quartile 75-123) and 12 (1st-3rd quartile 11-34) in pHLH and MAS, respectively. The probability of a diagnosis of pHLH ranged from <1% for a score of <11 to >99% for a score of  ≥123. A cutoff value of ≥60 revealed the best performance in discriminating pHLH from MAS. CONCLUSION: The MH score is a powerful tool that may aid practitioners to identify patients who are more likely to have pHLH and, thus, could be prioritized for functional and genetic testing.
Lingua originaleEnglish
pagine (da-a)1-10
Numero di pagine10
RivistaJournal of Pediatrics
Volume2017
DOI
Stato di pubblicazionePubblicato - 2017

Keywords

  • Macrophage activation syndrome

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