Unmasking Hyperammonemia: Psychomotor Slowing as a Diagnostic Trigger During PEG and Enteral Nutrition.

Am SurgJun 9, 2026 (epub)

Xiaoyi Zhao, Yue Shen, Qiang Zhan

✦ AI-curated · Sources linked

Case in brief

A 63-year-old woman experienced severe hyperammonemia and psychomotor slowing after undergoing percutaneous endoscopic gastrostomy (PEG) and continuous enteral nutrition for anxiety-related feeding difficulties. Despite normal neuroimaging, her plasma ammonia levels reached 117.6 μmol/L. The condition was resolved by removing the PEG and switching to a semi-liquid oral diet, which normalized her ammonia levels and cognitive function.

Diagnostic / clinical pearl

Clinicians should consider unexplained psychomotor slowing as a potential indicator of hyperammonemia in patients receiving long-term enteral nutrition, prompting timely evaluation and intervention.

Why it matters

This case underscores the importance of monitoring for metabolic complications in patients on enteral feeding, particularly those with underlying vulnerabilities.

Source

Published in Am Surg. This summary was written by xxcode from the publication's abstract and metadata. It is not peer reviewed and is not a substitute for the original article. For clinical decisions, review the original publication.

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