תאיר בן פורת
Nutritional preventive care prior to Sleeve Gastrectomy surgery
פרופ' רם וייס
ד"ר רם אלעזרי
My PhD project deals with nutritional and skeletal status of patients undergoing bariatric surgery. Bariatric surgery is considered as the most effective treatment for morbid obesity, however despite their advantages, one side effect of these procedures is the detrimental impact on nutritional deficiencies and bone metabolism.
The combination of rapid weight loss, restricted dietary intake and decreased micronutrient absorption places patients at high risk of nutritional deterioration and bone loss over the long-term.
Previously, we showed that 99% of 192 candidates for surgery suffered from vitamin D insufficiency prior to surgery and the presence of preoperative deficiencies was the strongest predictor for their presence in the postoperative period.
Therefore, there is a need to focus on the preoperative nutritional deficiency status, in attempt to prevent post-operative deficiencies and their related metabolic complications.
The aim of my PhD research is to examine the effect of Preoperative intensive nutritional care on bone mineral density and the appearance of critical nutritional deficiencies one year after Sleeve gastrectomy. The study design is a single-blind randomized controlled clinical trial with 2 months treatment prior to surgery and 12 months of follow up after the surgery. In addition, a cross sectional study on nutritional status among a large sample of patients with severe obesity who are candidate to bariatric surgery was carried at baseline and demonstrated that populations at higher risk for nutritional deficiencies include patients with higher body mass index (BMI), females and some ethnic subgroups.