Cresting mortality: Defining a plateau in ongoing massive transfusion.
Journal
The journal of trauma and acute care surgery
ISSN: 2163-0763
Titre abrégé: J Trauma Acute Care Surg
Pays: United States
ID NLM: 101570622
Informations de publication
Date de publication:
01 07 2022
01 07 2022
Historique:
pubmed:
9
4
2022
medline:
24
6
2022
entrez:
8
4
2022
Statut:
ppublish
Résumé
Blood-based balanced resuscitation is a standard of care in massively bleeding trauma patients. No data exist as to when this therapy no longer significantly affects mortality. We sought to determine if there is a threshold beyond which further massive transfusion will not affect in-hospital mortality. The Trauma Quality Improvement database was queried for all adult patients registered between 2013 and 2017 who received at least one unit of blood (packed red blood cell) within 4 hours of arrival. In-hospital mortality was evaluated based on the total transfusion volume (TTV) at 4 hours and 24 hours in the overall cohort (OC) and in a balanced transfusion cohort, composed of patients who received transfusion at a ratio of 1:1 to 2:1 packed red blood cell to plasma. A bootstrapping method in combination with multivariable Poisson regression was used to find a cutoff after which additional transfusion no longer affected in-hospital mortality. Multivariable Poisson regression was used to control for age, sex, race, highest Abbreviated Injury Scale score in each body region, comorbidities, advanced directives limiting care, and the primary surgery performed for hemorrhage control. The OC consisted of 99,042 patients, of which 28,891 and 30,768 received a balanced transfusion during the first 4 hours and 24 hours, respectively. The mortality rate plateaued after a TTV of 40.5 units (95% confidence interval [CI], 40-41) in the OC at 4 hours and after a TTV of 52.8 units (95% CI, 52-53) at 24 hours following admission. In the balanced transfusion cohort, mortality plateaued at a TTV of 39 units (95% CI, 39-39) and 53 units (95% CI, 53-53) at 4 hours and 24 hours following admission, respectively. Transfusion thresholds exist beyond which ongoing transfusion is not associated with any clinically significant change in mortality. These TTVs can be used as markers for resuscitation timeouts to assess the plan of care moving forward. Prognostic and epidemiological, Level III.
Sections du résumé
BACKGROUND
Blood-based balanced resuscitation is a standard of care in massively bleeding trauma patients. No data exist as to when this therapy no longer significantly affects mortality. We sought to determine if there is a threshold beyond which further massive transfusion will not affect in-hospital mortality.
METHODS
The Trauma Quality Improvement database was queried for all adult patients registered between 2013 and 2017 who received at least one unit of blood (packed red blood cell) within 4 hours of arrival. In-hospital mortality was evaluated based on the total transfusion volume (TTV) at 4 hours and 24 hours in the overall cohort (OC) and in a balanced transfusion cohort, composed of patients who received transfusion at a ratio of 1:1 to 2:1 packed red blood cell to plasma. A bootstrapping method in combination with multivariable Poisson regression was used to find a cutoff after which additional transfusion no longer affected in-hospital mortality. Multivariable Poisson regression was used to control for age, sex, race, highest Abbreviated Injury Scale score in each body region, comorbidities, advanced directives limiting care, and the primary surgery performed for hemorrhage control.
RESULTS
The OC consisted of 99,042 patients, of which 28,891 and 30,768 received a balanced transfusion during the first 4 hours and 24 hours, respectively. The mortality rate plateaued after a TTV of 40.5 units (95% confidence interval [CI], 40-41) in the OC at 4 hours and after a TTV of 52.8 units (95% CI, 52-53) at 24 hours following admission. In the balanced transfusion cohort, mortality plateaued at a TTV of 39 units (95% CI, 39-39) and 53 units (95% CI, 53-53) at 4 hours and 24 hours following admission, respectively.
CONCLUSION
Transfusion thresholds exist beyond which ongoing transfusion is not associated with any clinically significant change in mortality. These TTVs can be used as markers for resuscitation timeouts to assess the plan of care moving forward.
LEVEL OF EVIDENCE
Prognostic and epidemiological, Level III.
Identifiants
pubmed: 35393379
doi: 10.1097/TA.0000000000003641
pii: 01586154-202207000-00007
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
43-51Informations de copyright
Copyright © 2022 Wolters Kluwer Health, Inc. All rights reserved.
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