Abstract
While bone disease is occasionally seen after gastrectomy, the influence of vagotomy on calcium and vitamin D metabolism is uncertain. We have, therefore, investigated 23 male patients who had undergone highly selective vagotomy for ulcer 4.3 +/- 1.2 years previously. The 25OHD concentrations were decreased (p less than 0.05), the 1,25(OH)2D concentrations elevated (p less than 0.05) and the immunoreactive parathyroid hormone concentrations normal. Local and total bone mass were normal compared to age-matched men, and there was no biochemical evidence of increased bone turnover. We suggest that the changes in calcium absorption, which are described in the literature after vagotomy, are mediated by 1,25(OH)2D. Although the changes in vitamin D metabolism do not lead to calcium-metabolic disturbances in selected patients, we believe that some will eventually develop vitamin D deficiency and that vitamin D supplementation should be considered.
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