Acute mesenteric venous occlusion
ICD-10 K55.0ICD-11 DD30.2

Treatment of Acute Mesenteric Venous Thrombosis Without Peritonitis or Peritoneal Signs

Clinical Scenario

This protocol applies to patients with acute mesenteric venous thrombosis who present without peritonitis or peritoneal signs. The absence of overt peritoneal involvement defines a specific management window in which a structured, non-operative initial approach is appropriate.

Treatment Approach (Partial Overview)

The regimen begins with prompt systemic anticoagulation initiated soon after diagnosis, accompanied by supportive measures addressing pain, fluid balance, and bowel rest. Anticoagulation continues beyond the acute phase, transitioning to an oral agent in subsequent weeks — but the complete sequence, choice of agents, and decision points are detailed in the structured protocol.

Full regimen, individualisation criteria, and algorithm available via the link below.

Treatment Goal

The primary objective is mesenteric vein recanalisation, demonstrated after a median of six months.

Target: mesenteric vein recanalisation
Instant Access to Structured Evidence-Based Regimens
References

DOI: 10.1016/j.ejvs.2025.06.010

Anticoagulation with unfractionated or low molecular weight heparin as first line therapy is recommended for all patients with acute mesenteric vein thrombosis.

In the absence of major contraindications, systemic anticoagulation should be initiated soon after the diagnosis is made, with unfractionated heparin or low molecular weight heparin to reduce the risk of thrombosis propagation, VTE recurrence, and overall mortality.

Pain control, fluid and electrolyte supplementation, and bowel rest should be initiated immediately.

No peritonitis.

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