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Review
. 2025 May 28;17(5):e84941.
doi: 10.7759/cureus.84941. eCollection 2025 May.

Efficacy and Safety of Direct Oral Anticoagulants Versus Vitamin K Antagonists for Left Ventricular Thrombus: A Systematic Review and Meta-Analysis

Affiliations
Review

Efficacy and Safety of Direct Oral Anticoagulants Versus Vitamin K Antagonists for Left Ventricular Thrombus: A Systematic Review and Meta-Analysis

Momina Khan et al. Cureus. .

Abstract

Left ventricular thrombus (LVT) is a serious complication associated with myocardial infarction and cardiomyopathy. While vitamin K antagonists (VKAs) have been the standard treatment, direct oral anticoagulants (DOACs) offer potential advantages. This meta-analysis compares the efficacy and safety of DOACs versus VKAs in patients with LVT. We conducted a systematic search of PubMed, Excerpta Medica database (Embase), Scopus, Web of Science, and Cochrane Central Register of Controlled Trials (CENTRAL) from inception to April 2025. Studies comparing DOACs with VKAs in adult patients with LVT were included. The primary outcome was LVT resolution; secondary outcomes included stroke or systemic embolism (SSE) and bleeding events. Random-effects models were used to calculate pooled risk ratios (RRs) with 95% confidence intervals. Thirty-five studies (five RCTs and 30 observational) with 4,823 patients were included. LVT resolution was comparable between DOACs and VKAs (RR: 1.04, 95% CI: 0.99-1.10, I² = 30%). Risk of SSE showed no significant difference (RR: 0.91, 95% CI: 0.80-1.03, I² = 11%). DOACs were associated with significantly lower bleeding risk (RR: 0.87, 95% CI: 0.81-0.94, I² = 0%). Subgroup analyses by study design showed consistent findings. DOACs demonstrated comparable efficacy to VKAs for LVT resolution and stroke prevention while offering a superior safety profile with lower bleeding risk. These findings suggest DOACs may be a viable alternative to VKAs in LVT management, though large-scale randomized trials are needed to confirm these results and establish optimal dosing strategies.

Keywords: anticoagulation therapy; direct oral anticoagulants; left ventricular thrombus; thromboembolism; vitamin k antagonists.

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Conflict of interest statement

Conflicts of interest: In compliance with the ICMJE uniform disclosure form, all authors declare the following: Payment/services info: All authors have declared that no financial support was received from any organization for the submitted work. Financial relationships: All authors have declared that they have no financial relationships at present or within the previous three years with any organizations that might have an interest in the submitted work. Other relationships: All authors have declared that there are no other relationships or activities that could appear to have influenced the submitted work.

Figures

Figure 1
Figure 1. PRISMA flowchart
PRISMA: Preferred Reporting Items for Systematic Reviews and Meta-Analyses
Figure 2
Figure 2. Comparison of thrombus resolution between DOAC and LVT
DOAC: direct oral anticoagulant; LVT: left ventricular thrombus [13-16, 18,19, 21, 23-25, 27-43, 45-48]
Figure 3
Figure 3. Comparison of the risk of SSE between DOAC and VKT
[13-17, 19-23, 25-27, 31, 33,34, 37,38, 40-42, 44, 46,47] SSE: systemic embolism; DOAC: direct oral anticoagulant; VKT: vitamin K antagonist
Figure 4
Figure 4. Comparison of the risk of bleeding events between DOAC and VKA
[13-18, 21-22, 25-27, 31, 33-35, 37-40, 42, 44-48] DOAC: direct oral anticoagulants; VKA: vitamin K antagonist

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