title: Wernicke's encephalopathy after gastric bypass that masqueraded as acute psychosis: a case report.
abstract: Wernicke's encephalopathy was originally described more than a decade ago. It has been reported after many causes of malnutrition. This case presents a patient with thiamine deficiency after gastric bypass, although unusual in itself, further complicating the case was the initial diagnosis of acute psychosis that was scheduled for electroconvulsive therapy. After recognition and intervention, the patient was successfully treated with thiamine replacement and parenteral nutrition.
authors.affiliation: College of Osteopathic Medicine, Oklahoma State University, Tulsa, Oklahoma, USA. rwworden@usa.net
authors.forename: Robert W
authors.initials: RW
authors.lastname: Worden
authors.forename: Henry M
authors.initials: HM
authors.lastname: Allen
mesh_terms: D000208:Acute Disease; D000328:Adult; D000713:Anastomosis, Roux-en-Y / Q000009:adverse effects / Q000379:methods; D015992:Body Mass Index; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D015390:Gastric Bypass / Q000009:adverse effects* / Q000379:methods; D006801:Humans; D007273:Injections, Intramuscular; D010535:Laparoscopy / Q000009:adverse effects / Q000379:methods; D009767:Obesity, Morbid / Q000175:diagnosis / Q000601:surgery*; D011183:Postoperative Complications / Q000175:diagnosis; D011618:Psychotic Disorders / Q000175:diagnosis* / Q000209:etiology; D018570:Risk Assessment; D013831:Thiamine / Q000627:therapeutic use; D016896:Treatment Outcome; D014899:Wernicke Encephalopathy / Q000175:diagnosis* / Q000188:drug therapy / Q000209:etiology
chemical_list: D013831:Thiamine