RT Journal Article T1 Intracranial haemorrhage in children and adolescents with severe haemophilia A or B - the impact of prophylactic treatment. A1 Andersson, Nadine G A1 Auerswald, Günter A1 Barnes, Chris A1 Carcao, Manuel A1 Dunn, Amy L A1 Fijnvandraat, Karin A1 Hoffmann, Marianne A1 Kavakli, Kaan A1 Kenet, Gili A1 Kobelt, Rainer A1 Kurnik, Karin A1 Liesner, Ri A1 Mäkipernaa, Anne A1 Manco-Johnson, Marilyn J A1 Mancuso, Maria E A1 Molinari, Angelo C A1 Nolan, Beatrice A1 Perez Garrido, Rosario A1 Petrini, Pia A1 Platokouki, Helen E A1 Shapiro, Amy D A1 Wu, Runhui A1 Ljung, Rolf K1 children K1 factor IX K1 factor VIII K1 haemophilia A K1 haemophilia B AB The discussion of prophylactic therapy in haemophilia is largely focused on joint outcomes. The impact of prophylactic therapy on intracranial haemorrhage (ICH) is less known. This study aimed to analyse ICH in children with haemophilia, with a focus on different prophylaxis regimens and sequelae of ICH. We conducted a multicentre retrospective and prospective study that included 33 haemophilia centres from 20 countries. Inclusion criteria were children and adolescents born between 1993 and 2014, with severe haemophilia A or B without inhibitors. Participants were categorized by prophylaxis regimen: full, partial or none, based on dose and dose frequency of regular infusions. The cohort study included 1515 children: 29 cases of ICH over 8038 patient years were reported. The incidence of ICH in the prophylaxis group, 0·00033 cases of ICH/patient year, was significantly lower compared to the no prophylaxis group, 0·017 cases of ICH/patient year (RR 50·06; P  YR 2017 FD 2017-07-12 LK http://hdl.handle.net/10668/11396 UL http://hdl.handle.net/10668/11396 LA en DS RISalud RD Apr 20, 2025