Journal of the American College of Emergency Physicians open · 2024
Management of factor Xa inhibitor-related traumatic non-intracranial bleeding events with andexanet alfa or four-factor prothrombin complex concentrate in a US multicenter observational study.
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Dobesh Paul P, Coleman Craig I, Danese Mark, Lesén Eva, Chang Raymond C, Odelade Onivefu, Fermann Gregory J
Аннотация
OBJECTIVES: This study describes clinical characteristics and management strategies for patients with factor Xa (FXa) inhibitor-related traumatic non-intracranial bleeds who were treated with andexanet alfa or four-factor prothrombin complex concentrate (4F-PCC).
METHODS: An observational cohort study (ClinicalTrials.gov Identifier: NCT05548777) was conducted using electronic health records from 354 US hospitals. Included patients were hospitalized with rivaroxaban- or apixaban-related bleeding, had received andexanet alfa or 4F-PCC treatment during their hospitalization, and were discharged between May 2018 and September 2022. This analysis was performed in the subgroup of patients with traumatic non-intracranial critical compartment/non-compressible bleeds or other traumatic bleeds.
RESULTS: The study population included 250 patients (andexanet alfa, n = 116; 4F-PCC, n = 134). Critical compartment bleeds were the most common (86.8%), with retroperitoneal bleeds the most common subtype (30.9%). Most patients were admitted via the emergency department (82.0%). The median time from presentation to reversal/replacement treatment was 2.7 (interquartile range, 1.2, 6.6) h. For patients treated with andexanet alfa, 63.8% were administered the low-dose regimen. For 4F-PCC, a median of 2000 total units was administered per patient. Other treatment strategies used included intravenous fluids (26.0%), fresh frozen plasma (16.0%), and packed red blood cells (13.2%). Prior to hospital discharge, oral anticoagulants were restarted in 20.4% of patients. Overall, 25 (10.0%) patients died in hospital.
CONCLUSION: This analysis provides insights into the clinical characteristics and management strategies, including time to treatment, for patients treated with andexanet alfa or 4F-PCC while hospitalized for FXa inhibitor-related traumatic bleeds.
METHODS: An observational cohort study (ClinicalTrials.gov Identifier: NCT05548777) was conducted using electronic health records from 354 US hospitals. Included patients were hospitalized with rivaroxaban- or apixaban-related bleeding, had received andexanet alfa or 4F-PCC treatment during their hospitalization, and were discharged between May 2018 and September 2022. This analysis was performed in the subgroup of patients with traumatic non-intracranial critical compartment/non-compressible bleeds or other traumatic bleeds.
RESULTS: The study population included 250 patients (andexanet alfa, n = 116; 4F-PCC, n = 134). Critical compartment bleeds were the most common (86.8%), with retroperitoneal bleeds the most common subtype (30.9%). Most patients were admitted via the emergency department (82.0%). The median time from presentation to reversal/replacement treatment was 2.7 (interquartile range, 1.2, 6.6) h. For patients treated with andexanet alfa, 63.8% were administered the low-dose regimen. For 4F-PCC, a median of 2000 total units was administered per patient. Other treatment strategies used included intravenous fluids (26.0%), fresh frozen plasma (16.0%), and packed red blood cells (13.2%). Prior to hospital discharge, oral anticoagulants were restarted in 20.4% of patients. Overall, 25 (10.0%) patients died in hospital.
CONCLUSION: This analysis provides insights into the clinical characteristics and management strategies, including time to treatment, for patients treated with andexanet alfa or 4F-PCC while hospitalized for FXa inhibitor-related traumatic bleeds.