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Vitamin A deficiency (VAD) after a duodenal switch procedure: a case report
Christine Stroh1, Christian Weiher, Ulrich Hohmann
1Department of General, Abdominal and Pediatric Surgery, Municipal Hospital, Gera, Germany. Christine.Stroh@wkg.srh.de
Abstract:
Vitamin A deficiency (VAD) after bariatric surgery is a well-documented complication. Clinical signs of VAD deficiency are significant if the vitamin A level is below 100 mug/L (4 mumol/L). Main symptom of VAD is nyctalopia. It has been described in several reports after malabsorptive bariatric procedures. We report a 52-year-old man with VAD complained of night blindness and optic neuropathy after undergoing a duodenal switch procedure. The case illustrates the necessity of lifelong vitamin supplementation after malabsorptive bariatric operations.
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