Neurologic complications after gastric restriction surgery for morbid obesity

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Abstract
We report the occurrence of neurologic complications in 23 patients who underwent gastric restriction surgery for the treatment of morbid obesity. Complications occurred 3 to 20 months after surgery. All the patients had had protracted vomiting for the first 3 months after the operation. The following syndromes were found chronic or subacute symmetric polyneuropathy (12 patients), acute severe polyneuropathy (1 patient), burning feet syndrome (2 patients), meralgia paresthetica (3 patients), myotonic syndrome (1 patient), posterolateral myelopathy (2 patients), and Wernicke-Korsakoff encephalopathy (2 patients). The patients suffering from burning feet syndrome and those with Wernicke-Korsakoff encephalopathy showed a clear improvement after parenteral thiamine treatment. As to the rest of the patients, the occurrence of the complications seems to be linked to nutritional causes, although no such deficiencies were detected.