Nutritional Status Prior to Laparoscopic Sleeve Gastrectomy Surgery

Area of Science:

• Bariatric Surgery
• Nutritional Science
• Obesity Management

Background:

• Nutrient deficiencies post-bariatric surgery stem from pre-existing deficiencies and poor dietary choices.
• Laparoscopic sleeve gastrectomy (LSG) is a common bariatric procedure.
• Assessing pre-operative nutritional status is crucial for patient management.

Purpose of the Study:

• Evaluate nutritional status in patients prior to LSG.
• Determine the prevalence of specific nutritional deficiencies.
• Investigate potential gender differences in nutritional status.

Main Methods:

• Cross-sectional analysis of pre-surgery data from 100 morbidly obese patients.
• Data collected included anthropometrics, dietary intake, and fasting blood tests.
• Patients had non-alcoholic fatty liver disease (NAFLD) and were candidates for LSG.

Main Results:

• Pre-operative deficiencies observed for iron (6%), folic acid (1%), vitamin B1 (6%), vitamin B12 (0%), vitamin D (22%), and hemoglobin (6%).
• Micronutrient intake below Dietary Reference Intake (DRI) recommendations: iron (46%), calcium (48%), folic acid (58%), vitamin B12 (14%), vitamin B1 (34%).
• High caloric and macronutrient intake contrasted with poor micronutrient intake, indicating low dietary quality.

Conclusions:

• Pre-operative nutritional deficiencies are present in LSG candidates, notably vitamin D deficiency.
• Most patients do not meet DRI recommendations for key micronutrients.
• High-calorie, high-macronutrient intake suggests poor dietary quality prior to bariatric surgery.