What to Do When Anticoagulation Fails in Recent Portal Vein Thrombosis Without Cirrhosis

Anticoagulation is the first-line approach for recent portal vein thrombosis (PVT) in the absence of cirrhosis. However, when it does not achieve its primary goals, a more interventional strategy becomes necessary.

Previous Line — Anticoagulation Failure

When the initial anticoagulation regimen (low-molecular-weight heparin, vitamin K antagonists, or direct oral anticoagulants as an alternative) fails to achieve portal vein recanalisation or when intestinal ischaemia develops (bowel necrosis is not excluded), escalation to a more active intervention is indicated.

Clinical Scenario

This protocol addresses recent portal vein thrombosis in patients without cirrhosis, specifically when first-line anticoagulation has not met its therapeutic targets and the clinical situation requires urgent reassessment.

Next-Step Approach

The structured protocol involves interventional techniques available in expert centres — including consideration of thrombolysis and/or endovascular approaches — with simultaneous surgical evaluation. The full decision algorithm and criteria for each option are in the complete protocol.

Instant Access to Structured Evidence-Based Regimens

References

DOI: 10.1016/j.jhep.2025.08.001

Anticoagulation initiated as soon as possible is the first-line therapy for recent PVT in the absence of cirrhosis.

If there are signs of intestinal ischaemia and no early improvement with anticoagulation, thrombolysis and/or endovascular interventions should be considered in expert centres, while being evaluated by surgeons for potential surgical resection.

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