Predictors of Responsiveness to Vitamin D Supplementation and Outcomes Assessment in Patients Undergoing Roux-en-Y Gastric Bypass Surgery

Vitamin D is one of the most common micronutrient deficiencies in the obese population awaiting Roux-en-Y gastric bypass (RYGB) surgery and often persists post-operatively despite routinely recommended supplementation, suggesting there may be variable response to this supplementation. However, there are no established indicators that allow clinicians to identify the non-responders, and factors contributing to poor vitamin D repletion after surgery remain unclear. In addition, a patient’s nutritional status is an important factor in postoperative morbidity and mortality after any major surgery, but it is unknown how vitamin D status impacts patient outcomes after bariatric procedures. The aims of this study were to identify the predictors of responsiveness to vitamin D supplementation in recipients of RYGB surgery, and to compare patient outcomes as measured by hospital readmissions and emergency room (ER) visits, between responders and non-responders in the year following surgery.

Materials Available

• Abstract

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Project Type(s): Master's Thesis

Author(s): Jessica Kim

Program(s): Master of Science, RDN Training

Year: 2013

Adviser(s):

• Lingtak-Neander Chan