Wernicke encephalopathy in non-alcoholic patients following gastrointestinal procedures: a systematic review - Report - MDSpire

Wernicke encephalopathy in non-alcoholic patients following gastrointestinal procedures: a systematic review

  • By

  • Hala Abu-Qasem

  • Husna Irfan Thalib

  • Zainab Shoeb Ghazi

  • Reem Tageldin

  • Yara Alras

  • Hanin Faisal

  • Laiba Khan

  • Abderrahman Ouban

  • Mounzer Yassin-Kassab

  • June 30, 2026

  • 0 min

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Clinical Report: Wernicke Encephalopathy in Non-Alcoholic Individuals After GI Surgeries

Overview

This systematic review examines the incidence and clinical characteristics of Wernicke encephalopathy (WE) in non-alcoholic adults following gastrointestinal surgeries. It highlights the diagnostic challenges and the importance of early thiamine treatment.

Background

Wernicke encephalopathy is a serious neurological disorder primarily caused by thiamine deficiency, often associated with alcohol use but also occurring in non-alcoholic contexts, particularly after gastrointestinal surgeries. The condition can lead to significant morbidity and mortality if not recognized and treated promptly.

Data Highlights

Study TypeNumber of PatientsMortality Rate
Various GI Procedures1,0360.3% - 40%

Key Findings

  • WE can occur after various gastrointestinal procedures, including bariatric and oncologic surgeries.
  • Vomiting is the most common precipitating factor for WE in non-alcoholic patients.
  • The classical triad of confusion, ataxia, and oculomotor dysfunction is present in only a minority of cases.
  • Magnetic resonance imaging often shows characteristic changes in the thalami and mammillary bodies in confirmed cases.
  • Early intravenous thiamine treatment is associated with better outcomes, though dosing protocols vary widely.

Clinical Implications

Healthcare professionals should be vigilant for signs of Wernicke encephalopathy in non-alcoholic patients following gastrointestinal surgeries, especially in those with risk factors such as malnutrition or persistent vomiting.

Conclusion

Wernicke encephalopathy presents significant diagnostic challenges in non-alcoholic patients after gastrointestinal procedures.

Related Resources & Content

  1. Obesity Surgery, 2018 -- Mitigating the Risk of Wernicke Encephalopathy Following Bariatric Surgery
  2. Frontiers in Medicine, 2026 -- A Case of Prolonged Post-Traumatic Duodenal Obstruction Complicated by Traumatic Pancreatitis and Wernicke's Encephalopathy: A Multidisciplinary Challenge
  3. Frontiers in Neurology, 2026 -- Periodic alternating nystagmus as a diagnostic clue in MRI-negative Wernicke encephalopathy mimicking multiple system atrophy: a case with complex heterogeneous dizziness
  4. ASMBS literature review & clinical guidelines on prevention, diagnosis, and treatment of Wernicke's encephalopathy and Wernicke-Korsakoff syndrome - PubMed
  5. Frontiers | Wernicke encephalopathy in non-alcoholic patients following gastrointestinal procedures: a systematic review
  6. Frontiers in Medicine — Effects of enteral immunonutrition enriched with multiple immunonutrients on clinical outcomes of patients who underwent gastric cancer surgery: a systematic review and meta-analysis
  7. ASMBS literature review & clinical guidelines on prevention, diagnosis, and treatment of Wernicke's encephalopathy and Wernicke-Korsakoff syndrome - PubMed
  8. Frontiers | Wernicke encephalopathy in non-alcoholic patients following gastrointestinal procedures: a systematic review

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