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Obes Surg. 2005 Jun-Jul;15(6):890-2.

Peripheral polyneuropathy from thiamine deficiency following laparoscopic Roux-en-Y gastric bypass.

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  • 1Memorial Health Bariatrics, Savannah, GA 31404, USA.


The neurologic form of beriberi has been described in multiple case reports following bariatric surgery for morbid obesity. Thiamine deficiency occurs due to marked emesis and/or altered absorption secondary to the reconfiguration of the gastrointestinal tract to achieve the malabsorption needed to achieve weight loss. This case report illustrates the typical presentation of a patient after gastric bypass, and highlights the symptoms that bariatric surgeons must detect and reviews the treatment.

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