Critical bleeding in adults and children with immune thrombocytopenia: a multicenter cohort study
Critical bleeding in patients with immune thrombocytopenia (ITP) is a life-threatening hematologic emergency. This study aimed to describe the frequency, management, and outcomes of critical bleeds among adults and children with ITP. We conducted a retrospective cohort study of patients with ITP who presented to the emergency room with a platelet count <20 × 109/L across 7 centers in the United States and Canada between 2010 and 2019. Of 1226 patients (n = 296 adults; n = 930 children), 28 (2.3%) had critical bleeds (adults, n = 15 [median age, 68 years]; children, n = 13 [median age, 11 years]). Of patients with critical bleeds, 12 adults (80.0%) and 6 children (46.2%) had intracranial hemorrhage (ICH). For adults, the common interventions used to treat critical bleeds were platelet transfusions (n = 11 [73.3%]), corticosteroids (n = 10 [66.7%]), and IV immunoglobulin (n = 8 [53.3%]), and for children, common interventions were IV immunoglobulin (n = 10 [76.9%]), corticosteroids (n = 8 [61.5%]), platelet transfusions (n = 8 [61.5%]), thrombopoietin receptor agonists (n = 4 [30.8%]), and antifibrinolytic agents (n = 4 [30.8%]). For both adults and children, the most common treatment combination was corticosteroids, IV immunoglobulin, and platelet transfusion (n = 6 [40.0%] vs n = 6 [46.2%]). The median time from presentation to first treatment was 6.9 hours for adults and 3.5 hours for children. Overall, 9 patients (32.1%) with critical ITP bleeds died, including 7 adults (46.7%) and 2 children (15.4%). Critical bleeding in patients with ITP was rare but frequently fatal, especially among older adults with ICH and when treatments were delayed.
Authors
- Abinaya Arulselvan
- Mahmudur Rahman Chowdhury
- Donald M. Arnold
- Amanda Pfeiffer
- Dimpy Modi (ORCID: https://orcid.org/0000-0002-5879-4179)
- Enass H. Raffa (ORCID: https://orcid.org/0000-0002-3625-2416)
- Karen Panckeri
- Laura M. Venier (ORCID: https://orcid.org/0000-0002-0009-7418)
- Rachael F. Grace (ORCID: https://orcid.org/0000-0001-7302-0449)
- Lehana Thabane (ORCID: https://orcid.org/0000-0003-0355-9734)
- Maryam Akbari‐Moghaddam (ORCID: https://orcid.org/0000-0001-9485-3394)
- Kristine Van Aarsen (ORCID: https://orcid.org/0000-0002-8189-1831)
- Gordon Guyatt (ORCID: https://orcid.org/0000-0003-2352-5718)
- Bonnie Liu (ORCID: https://orcid.org/0009-0002-2532-7774)
- Michele P. Lambert (ORCID: https://orcid.org/0000-0003-0439-402X)
- Justin W. Yan (ORCID: https://orcid.org/0000-0003-4668-5124)
- Emily Harris (ORCID: https://orcid.org/0000-0001-8583-6939)
- Emily Sirotich (ORCID: https://orcid.org/0000-0002-7087-8543)
- Matthew Basara
- Saifur Rahman Chowdhury (ORCID: https://orcid.org/0000-0003-4361-0792)
- Melanie St John
- Joel Livingston (ORCID: https://orcid.org/0000-0003-3528-4456)
- Rebecca Geer
- Taylah Buissereth
- A. O. Slim (ORCID: https://orcid.org/0009-0008-2589-6970)
- Brenna Cannon
- Allyson M. Pishko (ORCID: https://orcid.org/0000-0001-9997-454X)
- Emily Xu
- Carolyn E Beck
- Adam C. Cuker (ORCID: https://orcid.org/0000-0002-3595-5697)
- Toine Mercier (ORCID: https://orcid.org/0000-0002-1517-6426)
- Shuoyan Ning (ORCID: https://orcid.org/0000-0002-7675-4058)
- Ellis Bloom
- Kathryn Carrier
- Kerolos Eisa
- Dong‐Young Kim (ORCID: https://orcid.org/0000-0002-4000-1011)
- Ishaq Siddiqui
- Daya Gill
- Dena Zeraatkar
- Stephen J. King
Institutions
- Western University (CA)
- Cincinnati Children's Hospital Medical Center (US)
- Boston Children's Hospital (US)
- Children's Hospital of Philadelphia (US)
- University of Alberta (CA)
- North South University (BD)
- King Abdulaziz University (SA)
- University of Toronto (CA)
- Hospital of the University of Pennsylvania (US)
- London Health Sciences Centre (CA)
- King Faisal Specialist Hospital & Research Centre (SA)
- Hospital for Sick Children (CA)
- Boston Children's Museum (US)
- St Joseph's Health Care (CA)
- Stollery Children's Hospital (CA)
- Impact (CA)
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center (US)
- St. Joseph’s Healthcare Hamilton (CA)
- University of Pennsylvania (US)
- Fafo Foundation (NO)
- University of Cincinnati Medical Center (US)
- McMaster University (CA)
Publication Details
- Journal
- Blood Advances
- Published
- 2025-04-09
- DOI
- https://doi.org/10.1182/bloodadvances.2024015494
- Citations
- 2
- Primary Topic
- Platelet Disorders and Treatments
- Type
- article
- Field-Weighted Citation Impact
- 3.54
Funders
- Pfizer
- Sanofi
- Australian Government
- Agios Pharmaceuticals
- Canadian Blood Services
- Einstein Stiftung Berlin
- Swedish Orphan Biovitrum
- Health Canada
- Canadian Institutes of Health Research