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Wernicke’s Encephalopathy after Pancreaticoduodenectomy: A Case Report
Author(s) -
Monden Kazuteru,
Sadamori Hiroshi,
Hioki Masayoshi,
Ohno Satoshi,
Rikimaru Mitsue,
Saneto Hiromi,
Ueki Toru,
Yabushita Kazuhisa,
Sakaguchi Kousaku,
Takakura Norihisa
Publication year - 2019
Publication title -
case reports in clinical nutrition
Language(s) - English
Resource type - Journals
ISSN - 2571-662X
DOI - 10.1159/000499035
Subject(s) - case report
Background: Wernicke’s encephalopathy (WE) is caused by thiamine deficiency and classically appears as changes in mental status, oculomotor manifestations, and gait ataxia. WE is mostly found in patients with chronic alcoholism and malnutrition, and has rarely been reported following pancreaticoduodenectomy. Case Presentation: A 77-year-old woman was admitted to our hospital complaining of loss of appetite and weakness of the lower extremities. No abnormalities were found on blood examination. One year earlier, she had undergone pancreaticoduodenectomy for bile duct cancer, and pancreatic fistula developed as a postoperative complication. On hospital day 8, her level of consciousness deteriorated, and she experienced difficulty bending the lower limbs and walking. Computed tomography and upper gastrointestinal series showed dilatation of the residual stomach and stenosis of the gastrojejunostomy. Laboratory test results were normal except for blood gas analysis, which revealed severe lactic acidosis. A diagnosis of WE was suspected due to lactic acidosis secondary to thiamine deficiency. Definitive diagnosis was confirmed by magnetic resonance imaging of the brain. Intravenous infusion of high-dose thiamine (1,200 mg/day) was commenced, leading to improvement of her neurological condition. Conclusions: Physicians should recognize that pancreaticoduodenectomy, when complicated by gastrojejunostomy stenosis resulting in pancreatic fistula, can lead to WE. In this case, blood gas analysis was helpful in arriving at the correct diagnosis. A high degree of suspicion should be maintained if any of the classical features of WE are observed following pancreaticoduodenectomy.

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