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. 2023 May 23;21(1):59.
doi: 10.1186/s12959-023-00499-y.

Mortality data from omission of early thromboprophylaxis in critically ill patients highlights the importance of an individualised diagnosis-related approach

Berhe W Sahle  1   2 , David Pilcher  3   4   5 , Karlheinz Peter  6   7   8   9 , James D McFadyen  6   7   8   10 , Edward Litton  5   11   12 , Tracey Bucknall  13   14   4
Affiliations

Mortality data from omission of early thromboprophylaxis in critically ill patients highlights the importance of an individualised diagnosis-related approach

Berhe W Sahle et al. Thromb J. .

Abstract

Background: Venous thromboembolism (VTE) prophylaxis is effective in reducing VTE events, however, its impact on mortality is unclear. We examined the association between omission of VTE prophylaxis within the first 24 h after intensive care unit (ICU) admission and hospital mortality.

Methods: Retrospective analysis of prospectively collected data from the Australian New Zealand Intensive Care Society Adult Patient Database. Data were obtained for adult admissions between 2009 and 2020. Mixed effects logistic regression models were used to evaluate the association between omission of early VTE prophylaxis and hospital mortality.

Results: Of the 1,465,020 ICU admissions, 107,486 (7.3%) did not receive any form of VTE prophylaxis within the first 24 h after ICU admission without documented contraindication. Omission of early VTE prophylaxis was independently associated with 35% increased odds of in-hospital mortality (odds ratios (OR): 1.35; 95% CI: 1.31-1.41). The associations between omission of early VTE prophylaxis and mortality varied by admission diagnosis. In patients diagnosed with stroke (OR: 1.26, 95% CI: 1.05-1.52), cardiac arrest (OR: 1.85, 95% CI: 1.65-2.07) or intracerebral haemorrhage (OR: 1.48, 95% CI: 1.19-1.84), omission of VTE prophylaxis was associated with increased risk of mortality, but not in patients diagnosed with subarachnoid haemorrhage or head injury.

Conclusions: Omission of VTE prophylaxis within the first 24 h after ICU admission was independently associated with increased risk of mortality that varied by admission diagnosis. Consideration of early thromboprophylaxis may be required for patients with stroke, cardiac arrest and intracerebral haemorrhage but not in those with subarachnoid haemorrhage or head injury. The findings highlight the importance of individualised diagnosis-related thromboprophylaxis benefit-harm assessments.

Keywords: Critically ill; Intensive care unit; Mortality; Thromboprophylaxis; Venous thromboembolism; VTE.

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Conflict of interest statement

All authors declare no financial or non-financial competing interests with regards to the submitted work.

Figures

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Fig. 1
Inclusion and exclusion criteria and number of patients
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