Association Between Outcomes of Bariatric Surgery and Preoperative Gastrointestinal Microbiota

Jagiellonian University50 enrolled

Overview

Purpose The aim of this study was to analyze the microbiota of patients undergoing LSG or LRYGB on three levels of gastrointestinal tract, using oral swab and stool sample. We compared samples from patients achieving favorable outcomes in terms of weight-loss with patients, who did not respond optimally to the bariatric operation. Materials and methods Design This prospective cohort study was conducted in one academic, teaching hospital. The recommendations of the Metabolic and Bariatric Surgery Section of the Polish Surgical Society were used as indication for surgery, that is: Body Mass Index (BMI) ≥35 kg/m2 with obesity-related comorbidities or BMI ≥40 kg/m2 . Analysis and endpoints Primary endpoint was to determine the difference in microbiota present in oral cavity and large intestine between patients ing Group 1 and Group 2. Secondary endpoint was to compare the results of microbiota analysis between LSG and LRYGB.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Obesity, Morbid

Interventions

bariatric surgeryPROCEDURE

(Laparoscopic Sleeve Gastrectomy, laparoscopic Roux-en-Y gastric bypass)

Eligibility

Sex: ALLMin age: 18 YearsMax age: 65 Years

Medical Language ↔ Plain English

Inclusion Criteria: * informed consent to participate in the study, meeting the eligibility criteria for bariatric treatment, either for LSG or LRYGB. Exclusion Criteria: * type 1 or type 2 diabetes, treatment with antibiotics within 30 days prior to gathering microbiological material, treatment with probiotics within 30 days prior to gathering microbiological material, gastrointestinal infections, inflammatory bowel disease, thyroid diseases, cancer (especially the digestive tract), immunodeficiency.

Outcomes

Primary Outcomes

Change of microbiota in oral cavity

Time frame: 6 months

Change of microbiota in large intestine