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Recurrent VTE During Anticoagulation: Diagnosis, Systematic Evaluation, and Management
Lucía Ordieres-Ortega1, Francisco Galeano-Valle1, Marina López-Rubio1
1Venous Thromboembolism Unit, Internal Medicine Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain; School of Medicine, Universidad Complutense de Madrid, Madrid, Spain; Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.
Chest
|June 9, 2026
Summary
Recurrent venous thromboembolism (rVTE) during anticoagulation is a high-risk condition. Management relies on observational data, emphasizing diagnosis and structured approaches due to limited randomized trials.
Area of Science:
- Cardiology
- Hematology
- Vascular Medicine
Background:
- Recurrent venous thromboembolism (rVTE) during therapeutic anticoagulation presents significant clinical challenges and high risks.
- Breakthrough events, though infrequent, increase mortality, bleeding complications, and long-term morbidity.
- Accurate diagnosis is crucial, requiring careful comparison with prior imaging to distinguish true recurrence from residual thrombosis.
Purpose of the Study:
- To review the current understanding and management strategies for recurrent venous thromboembolism (rVTE) during anticoagulation.
- To highlight diagnostic challenges and the limitations of existing evidence.
- To identify areas requiring further research for optimal patient care.
Main Methods:
- Review of observational studies, guideline recommendations, and expert consensus on rVTE management.
- Analysis of diagnostic criteria and potential pitfalls, including residual thrombosis mimicry.
- Evaluation of acute management strategies, including the role of low-molecular-weight heparin (LMWH).
Main Results:
- Management is guided by limited robust data, relying heavily on observational evidence and expert opinion.
- A structured diagnostic and management approach is essential, addressing adherence, dosing, and potential underlying conditions.
- Low-molecular-weight heparin (LMWH) is central to acute management, though evidence is limited; individualized strategies are needed for special populations.
Conclusions:
- Significant gaps exist in the evidence base for managing rVTE during anticoagulation.
- Prospective registries and randomized trials are necessary to refine diagnostic criteria and management strategies.
- Further research is needed to clarify mechanisms of anticoagulant failure and optimize treatment in this high-risk group.
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