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Defibrotide treatment but not prophylaxis is useful in hepatic sinusoidal obstruction syndrome in children undergoing autologous stem cell transplant following high‐dose chemotherapy: A single‐center experience from the Royal Marsden Hospital, UK
Author(s) -
Roy Moulik Nirmalya,
Johnson Indranee,
Van Bruggen Lucia,
Petterson Toni,
Mycroft Julie,
Vaidya Sucheta J.
Publication year - 2020
Publication title -
pediatric blood and cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.116
H-Index - 105
eISSN - 1545-5017
pISSN - 1545-5009
DOI - 10.1002/pbc.28677
Subject(s) - defibrotide , medicine , busulfan , hepatic veno occlusive disease , surgery , hematopoietic stem cell transplantation , single center , autologous stem cell transplantation , cumulative incidence , chemotherapy , transplantation
Background Hepatic sinusoidal obstruction syndrome (SOS) is a serious complication of autologous stem cell transplant (ASCT) in children with historically high mortality rates. Defibrotide has shown proven benefit in its treatment and may have a modest role in prevention. We report our experience with SOS in children undergoing autologous transplant. Methods Case records of 82 consecutive patients undergoing ASCT following high‐dose chemotherapy between 2010 and 2017 were reviewed. Defibrotide was used for treatment of all with SOS and prophylactically in patients receiving busulfan‐based conditioning until 2014. Results Fourteen of the 82 children (17%) were diagnosed with SOS. The incidence was higher in those receiving busulfan‐based conditioning (13/42 vs 1/40, P = 0.008). Mean (±SD) time to diagnosis of SOS was 19 (±5.6) days following stem cell rescue. Bilirubin levels and ultrasound were normal in 7/14 and 3/14 patients. Coagulopathy was noted in 10/14; one child developed multiorgan involvement. Nine children had mild SOS, whereas two and three had moderate and severe SOS, respectively. Intensive care was required for four of five non‐mild cases. Patients with SOS had significantly delayed platelet recovery, higher transfusion requirement, and longer hospital stay. Unavailability of defibrotide prophylaxis for 17/42 receiving busulfan did not change the incidence of SOS (7/25 with defibrotide vs 6 /17 without defibrotide, P = 0.74). There was no significant difference in the severity of SOS between these groups. Conclusion Hepatic SOS was more commonly seen in children receiving busulfan‐based conditioning. Stopping the use of prophylactic defibrotide did not increase incidence or severity of SOS. Overall outcome was excellent with supportive care and timely treatment with defibrotide.