Overt Hepatic Encephalopathy (West Haven Grade 2–4) in Liver Cirrhosis — Mental Status Not Recovered After Rifaximin + Lactulose

This protocol applies to patients with cirrhosis and overt hepatic encephalopathy (West Haven grade 2–4) presenting with altered mental status, specifically when the preceding standard therapy has not achieved recovery within the expected window.

Clinical Scenario

Hepatic encephalopathy should be suspected in any patient with cirrhosis and altered mental status. Overt HE — clinically obvious neurological deterioration at grades 2–4 — is the setting addressed here, in the context of underlying liver cirrhosis.

Previous Treatment — Failure Condition

Prior therapy did not meet its target

The preceding step added rifaximin to lactulose therapy. The goal was recovery of mental status within 48–72 hours of adequate hepatic encephalopathy therapy and reversal of the precipitating factor. When that target is not reached, the protocol below applies.

Next-Step Approach

In selected patients with refractory hepatic encephalopathy who remain on optimized medical therapy and have adequate hepatic function, a targeted interventional approach addressing the underlying vascular anatomy may be considered — under specific clinical criteria. The complete eligibility requirements, procedural pathway, and decision algorithm are contained in the full protocol.

Instant Access to Structured Evidence-Based Regimens

References

DOI: 10.14309/ajg.0000000000003899

HE should be suspected in any patient with cirrhosis and altered mental status.

This is to differentiate it from the clinically obvious overt HE (OHE) forms (i.e., grades 2–4).

We suggest shunt embolization in patients with refractory HE on optimized medical therapy who have adequate hepatic function and no contraindications (conditional recommendation, very low certainty of evidence).

Therefore, in patients with refractory HE, evaluation for SPSS should be sought and in the right clinical setting (MELD usually <15), embolization should be considered (especially if shunts are ≥8 mm diameter).

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