Severe Hypocalcemia due to Vitamin D Deficiency after Extended Roux-en-Y Gastric Bypass

Vitamin D deficiency is a well-known comorbidity of obesity that can be exacerbated after bariatric surgery and can predispose the patient for hypocalcemia. Vitamin D and calcium doses to prevent and treat vitamin D deficiency after weight loss surgery are not well defined. We describe a patient who...

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Main Authors: I. Miñambres, A. Chico, A. Pérez
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:Journal of Obesity
Online Access:http://dx.doi.org/10.1155/2011/141024
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author I. Miñambres
A. Chico
A. Pérez
author_facet I. Miñambres
A. Chico
A. Pérez
author_sort I. Miñambres
collection DOAJ
description Vitamin D deficiency is a well-known comorbidity of obesity that can be exacerbated after bariatric surgery and can predispose the patient for hypocalcemia. Vitamin D and calcium doses to prevent and treat vitamin D deficiency after weight loss surgery are not well defined. We describe a patient who developed severe hypocalcemia due to vitamin D deficiency 5 years after an extended Roux-en-Y gastric bypass for a type II obesity. No precipitating factors were present and malabsorption induced by the bypass was considered to be the main causative factor. High doses of vitamin D and calcium were needed to reach and maintain normal calcium and vitamin D concentrations. This case emphasises the importance of routine screening for vitamin D deficiency in obese individuals and reflects that while consensus does not exist regarding optimal dosage, vitamin D replacement should be tittered based on calcidiol levels.
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publishDate 2011-01-01
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series Journal of Obesity
spelling doaj-art-e2fb26ebe58f4c76b4565b971e7ffa632025-08-20T02:21:14ZengWileyJournal of Obesity2090-07082090-07162011-01-01201110.1155/2011/141024141024Severe Hypocalcemia due to Vitamin D Deficiency after Extended Roux-en-Y Gastric BypassI. Miñambres0A. Chico1A. Pérez2Servicio de Endocrinología y Nutrición, Hospital de la Santa Creu i Sant Pau, S. Antoni M. Claret 167, 08025 Barcelona, SpainServicio de Endocrinología y Nutrición, Hospital de la Santa Creu i Sant Pau, S. Antoni M. Claret 167, 08025 Barcelona, SpainServicio de Endocrinología y Nutrición, Hospital de la Santa Creu i Sant Pau, S. Antoni M. Claret 167, 08025 Barcelona, SpainVitamin D deficiency is a well-known comorbidity of obesity that can be exacerbated after bariatric surgery and can predispose the patient for hypocalcemia. Vitamin D and calcium doses to prevent and treat vitamin D deficiency after weight loss surgery are not well defined. We describe a patient who developed severe hypocalcemia due to vitamin D deficiency 5 years after an extended Roux-en-Y gastric bypass for a type II obesity. No precipitating factors were present and malabsorption induced by the bypass was considered to be the main causative factor. High doses of vitamin D and calcium were needed to reach and maintain normal calcium and vitamin D concentrations. This case emphasises the importance of routine screening for vitamin D deficiency in obese individuals and reflects that while consensus does not exist regarding optimal dosage, vitamin D replacement should be tittered based on calcidiol levels.http://dx.doi.org/10.1155/2011/141024
spellingShingle I. Miñambres
A. Chico
A. Pérez
Severe Hypocalcemia due to Vitamin D Deficiency after Extended Roux-en-Y Gastric Bypass
Journal of Obesity
title Severe Hypocalcemia due to Vitamin D Deficiency after Extended Roux-en-Y Gastric Bypass
title_full Severe Hypocalcemia due to Vitamin D Deficiency after Extended Roux-en-Y Gastric Bypass
title_fullStr Severe Hypocalcemia due to Vitamin D Deficiency after Extended Roux-en-Y Gastric Bypass
title_full_unstemmed Severe Hypocalcemia due to Vitamin D Deficiency after Extended Roux-en-Y Gastric Bypass
title_short Severe Hypocalcemia due to Vitamin D Deficiency after Extended Roux-en-Y Gastric Bypass
title_sort severe hypocalcemia due to vitamin d deficiency after extended roux en y gastric bypass
url http://dx.doi.org/10.1155/2011/141024
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AT achico severehypocalcemiaduetovitaminddeficiencyafterextendedrouxenygastricbypass
AT aperez severehypocalcemiaduetovitaminddeficiencyafterextendedrouxenygastricbypass