Hypercobalaminemia Induced by an Energy Drink after Total Gastrectomy: A Case Report
10.2185/jrm.8.181
- Author:
Kazuhiro Takahashi
;
Shigeki Tsukamoto
;
Yuta Kakizaki
;
Ken Saito
;
Nobuhiro Ohkohchi
;
Katsu Hirayama
- Publication Type:Journal Article
- Keywords:
hypercobalaminemia;
total gastrectomy;
energy drink;
supplement;
transcobalamin
- From:Journal of Rural Medicine
2013;8(1):181-185
- CountryJapan
- Language:English
-
Abstract:
We encountered a case of hypercobalaminemia induced by oral intake of an energy drink after total gastrectomy. The patient was referred to our hospital due to findings suspicious for gastric cancer on screening. A 20 mm type 0-IIc lesion was detected in the gastric subcardia on esophagogastroduodenoscopy. Total gastrectomy followed by Roux-en-Y reconstruction was performed. He was discharged without complications. His basal serum vitamin B12 level was initially maintained with monthly intramuscular injections of vitamin B12. After 9 months, his serum vitamin B12 level suddenly increased up to 36-fold higher than the normal range and persisted there for one year without vitamin B12 injections. The patient ultimately reported consuming half a bottle of an energy drink each day during this time period. This case demonstrates the risk of unexpected hypervitaminemia resulting from self-administration of nutritional supplements.
