Evaluating chemical venous thromboembolism prophylaxis in trauma patients at a single Australian center

Purpose Trauma patients are at an elevated risk of developing venous thromboembolism (VTE), with the subsequent mortality in patients requiring intensive care unit admission ranging from 25% to 38%. There remains significant variability in clinical practice related to VTE prophylaxis in trauma patie...

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Main Authors: Natalie Quarmby, Minh Tu Vo, Sean Weng Chan
Format: Article
Language:English
Published: Korean Society of Traumatology 2024-09-01
Series:Journal of Trauma and Injury
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Online Access:http://jtraumainj.org/upload/pdf/jti-2024-0020.pdf
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author Natalie Quarmby
Minh Tu Vo
Sean Weng Chan
author_facet Natalie Quarmby
Minh Tu Vo
Sean Weng Chan
author_sort Natalie Quarmby
collection DOAJ
description Purpose Trauma patients are at an elevated risk of developing venous thromboembolism (VTE), with the subsequent mortality in patients requiring intensive care unit admission ranging from 25% to 38%. There remains significant variability in clinical practice related to VTE prophylaxis in trauma patients due to the frequent presence of contraindications impacting the timing and consistency of application. This study aimed to assess the effectiveness of the current practice of chemical VTE prophylaxis in trauma patients at a single Australian center. Methods A prospective review was conducted on patients admitted to the ACT Trauma Service (Canberra, Australia) from July to November 2022. The included patients were 18 years or older, without a direct contraindication to anticoagulation, who received chemical VTE prophylaxis with low-molecular-weight heparin (enoxaparin) for at least three doses and underwent subsequent testing of anti-factor Xa (aFXa) levels. Results During the study period, 187 patients were admitted, of whom 63 were included in the study. Of these, 47 patients achieved therapeutic levels of anticoagulation as determined by their aFXa levels, while 16 were subtherapeutic. The only statistically significant difference between the two groups was in weight, with patients in the subtherapeutic group weighing an average of 91.9 kg compared to 79.1 kg in the therapeutic group (P<0.05). Conclusions A fixed-dose enoxaparin regimen was utilized, with limited individualization based on patient factors, such as injuries, comorbidities, and other biological factors. Sixteen patients (25%) had subtherapeutic VTE prophylaxis, as measured by aFXa levels. Higher weight was significantly correlated with inadequate VTE prophylaxis dosing. While age, sex, and smoking status might play important roles in clinical decision-making, weight-based dosing of low-molecular-weight heparin may be more effective in achieving adequate VTE prophylaxis.
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spelling doaj-art-08ba7f0a55ff441fbf7021fd809799352025-01-16T06:10:27ZengKorean Society of TraumatologyJournal of Trauma and Injury2799-43172287-16832024-09-0137320921310.20408/jti.2024.00201323Evaluating chemical venous thromboembolism prophylaxis in trauma patients at a single Australian centerNatalie Quarmby0Minh Tu Vo1Sean Weng Chan2 Department of Surgery, Canberra Hospital, Garran, ACT, Australia Department of Surgery, Canberra Hospital, Garran, ACT, Australia Intensive Care Unit, Canberra Hospital, Garran, ACT, AustraliaPurpose Trauma patients are at an elevated risk of developing venous thromboembolism (VTE), with the subsequent mortality in patients requiring intensive care unit admission ranging from 25% to 38%. There remains significant variability in clinical practice related to VTE prophylaxis in trauma patients due to the frequent presence of contraindications impacting the timing and consistency of application. This study aimed to assess the effectiveness of the current practice of chemical VTE prophylaxis in trauma patients at a single Australian center. Methods A prospective review was conducted on patients admitted to the ACT Trauma Service (Canberra, Australia) from July to November 2022. The included patients were 18 years or older, without a direct contraindication to anticoagulation, who received chemical VTE prophylaxis with low-molecular-weight heparin (enoxaparin) for at least three doses and underwent subsequent testing of anti-factor Xa (aFXa) levels. Results During the study period, 187 patients were admitted, of whom 63 were included in the study. Of these, 47 patients achieved therapeutic levels of anticoagulation as determined by their aFXa levels, while 16 were subtherapeutic. The only statistically significant difference between the two groups was in weight, with patients in the subtherapeutic group weighing an average of 91.9 kg compared to 79.1 kg in the therapeutic group (P<0.05). Conclusions A fixed-dose enoxaparin regimen was utilized, with limited individualization based on patient factors, such as injuries, comorbidities, and other biological factors. Sixteen patients (25%) had subtherapeutic VTE prophylaxis, as measured by aFXa levels. Higher weight was significantly correlated with inadequate VTE prophylaxis dosing. While age, sex, and smoking status might play important roles in clinical decision-making, weight-based dosing of low-molecular-weight heparin may be more effective in achieving adequate VTE prophylaxis.http://jtraumainj.org/upload/pdf/jti-2024-0020.pdfwounds and injuriesvenous thromboembolism
spellingShingle Natalie Quarmby
Minh Tu Vo
Sean Weng Chan
Evaluating chemical venous thromboembolism prophylaxis in trauma patients at a single Australian center
Journal of Trauma and Injury
wounds and injuries
venous thromboembolism
title Evaluating chemical venous thromboembolism prophylaxis in trauma patients at a single Australian center
title_full Evaluating chemical venous thromboembolism prophylaxis in trauma patients at a single Australian center
title_fullStr Evaluating chemical venous thromboembolism prophylaxis in trauma patients at a single Australian center
title_full_unstemmed Evaluating chemical venous thromboembolism prophylaxis in trauma patients at a single Australian center
title_short Evaluating chemical venous thromboembolism prophylaxis in trauma patients at a single Australian center
title_sort evaluating chemical venous thromboembolism prophylaxis in trauma patients at a single australian center
topic wounds and injuries
venous thromboembolism
url http://jtraumainj.org/upload/pdf/jti-2024-0020.pdf
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