Nutritional sensory neuronopathy. An emerging new syndrome.

A distinctive, mostly proprioceptive polyneuropathy can occur in association with gastric partitioning in morbidly obese subjects. The syndrome occurred also in a nonobese patient receiving parenteral hyperalimentation and involved cranial nerves. The only consistent etiologic feature is surgical obstruction at the level of the gastric fundus. The condition reverses on reestablishment of enteral alimentation.