COMPARATIVE EFFICACY OF DIFFERENT ANTICOAGULATION STRATEGIES IN PATIENTS WITH VENOUS THROMBOEMBOLISM AND LIVER CIRRHOSIS: A META-ANALYSIS

Main Article Content

Amber Nawaz
Abdulai Abdul Rahman
Mahrukh Anwar Abbasi
Fatima Noor
Hamza Hussain
Sumble Sindhu Mahessar
Gull Washa
Sheraz Khan Afridi

Keywords

venous thromboembolism, liver cirrhosis, anticoagulation, direct oral anticoagulants, low-molecular-weight heparin, , unfractionated heparin, vitamin k antagonists

Abstract

Introduction: Venous thromboembolism (VTE) in patients with liver cirrhosis presents a unique clinical challenge due to the complex interplay between coagulation abnormalities and liver dysfunction. This study aims to evaluate the comparative efficacy and safety of different anticoagulation strategies in this high-risk population through a systematic review and meta-analysis.

 


Objectives: To compare the efficacy and safety of different anticoagulation strategies (unfractionated heparin, low-molecular-weight heparin, vitamin K antagonists, and direct oral anticoagulants) in patients with liver cirrhosis and VTE. To provide evidence-based recommendations for the optimal anticoagulation therapy in this patient population.
 
Methods: A comprehensive literature search was conducted in Scopus and PubMed databases to identify studies evaluating anticoagulation strategies in patients with liver cirrhosis and VTE. Inclusion criteria encompassed randomized controlled trials, cohort studies, and case-control studies comparing at least two anticoagulation strategies and reporting on clinical outcomes such as recurrence of VTE, major bleeding events, and mortality. Data extraction and quality assessment were performed independently by two reviewers, and pooled effect sizes were calculated using random-effects models.

Results: Twenty-two studies, including 14,392 patients, were analyzed. The meta-analysis revealed that direct oral anticoagulants (DOACs) and low-molecular-weight heparin (LMWH) were associated with lower recurrence rates of VTE (5.2% and 6.3%, respectively) compared to unfractionated heparin (UFH) (8.1%).


DOACs also demonstrated the lowest risk of major bleeding events (6.1%) and overall mortality (11.3%). LMWH showed a reduced risk of major bleeding (7.6%) and mortality (13.4%) compared to UFH. Vitamin K antagonists (VKAs) did not significantly differ from UFH in terms of efficacy and safety.
 
Conclusion: The findings suggest that DOACs and LMWH are preferable anticoagulation strategies for patients with liver cirrhosis and VTE, offering better outcomes in terms of VTE recurrence, major bleeding events, and overall mortality. These results have important implications for clinical practice and highlight the need for further research to optimize anticoagulation therapy in this population.
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