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Published on: February 10, 2023
Venous thromboembolism prophylaxis in critically ill patients
Kochawan Boonyawat1, Mark A Crowther2
1Department of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
Venous thromboembolism (VTE) is common in critically ill patients. Despite effective pharmacologic prophylaxis, such as unfractionated heparin (UFH) or low-molecular-weight heparin (LMWH), its use may be inadequate due to bleeding risk concerns.
Area of Science:
- Critical Care Medicine
- Cardiovascular Medicine
- Hematology
Background:
- Venous thromboembolism (VTE), encompassing deep vein thrombosis (DVT) and pulmonary embolism (PE), is a frequent complication in critically ill patients.
- Factors like mechanical ventilation, sedation, and central venous catheters increase VTE risk in this population.
- Pulmonary embolism (PE) is poorly tolerated due to compromised cardiopulmonary reserve in critically ill individuals.
Purpose of the Study:
- To highlight the importance of VTE prophylaxis in intensive care units (ICUs).
- To address the variability and potential inadequacy of VTE prophylaxis rates in clinical practice.
- To discuss the impact of perceived bleeding risk on VTE prophylaxis decisions.
Main Methods:
- Review of existing literature on VTE prophylaxis in critically ill patients.
- Analysis of risk factors contributing to VTE in the ICU setting.
- Discussion of pharmacologic prophylaxis options, including unfractionated heparin (UFH) and low-molecular-weight heparin (LMWH).
Main Results:
- Pharmacologic prophylaxis with UFH or LMWH has demonstrated efficacy in reducing VTE incidence across various patient groups.
- VTE prophylaxis is a standard preventive measure in ICUs.
- Inconsistent application of VTE prophylaxis exists, often influenced by physician concerns regarding bleeding risk.
Conclusions:
- Effective pharmacologic VTE prophylaxis strategies are available for critically ill patients.
- Addressing physician concerns about bleeding risk is crucial for optimizing VTE prophylaxis.
- Ensuring adequate VTE prophylaxis is essential for improving outcomes in the ICU.
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