Table 1.
Main content of topic clustering.
| Topic | Representative keywords | Main content |
|---|---|---|
| Topic 1 (226) | Obesity, morbid, bariatric surgery | Obesity |
| Longitudinal studies, cross-sectional studies, multivariate analysis, cost-benefit analysis, randomized controlled trials, surveys and questionnaires, meta-analysis | Research methods | |
| Quality of life, patient selection, feeding behavior, exercise, preoperative period, patient compliance, health knowledge, attitudes | Perioperative management | |
| Adolescent, prevalence, child, sex factors, age factors, pediatric obesity | Epidemiology | |
| Comorbidity, hypertension, cardiovascular diseases, depression, dyslipidemias | Diseases | |
| Topic 2 (216) | Diabetes mellitus, non-alcoholic fatty liver disease, hyperinsulinism | Comorbidities |
| Animals, adipose tissue, leptin, inflammation, adipocytes, bile acids, gastrointestinal microbiome, gene expression profiling, stem cells, oxidative stress, hypothalamus | Basic research | |
| Glucagon-like peptide 1, ghrelin, gastrointestinal hormones, peptide yy, cholecystokinin | Hormones | |
| Body composition, anthropometry, magnetic resonance imaging | Examination method | |
| Blood glucose, insulin resistance, energy metabolism, cholesterol | Metabolic parameters | |
| Topic 3 (210) | Roux-en-y, cholecystectomy, gastric band, sleeve gastrectomy, gastric bypass, fundoplication, intragastric balloon | Surgical procedures |
| Barrett esophagus, bile reflux, complications, fistula, gastroparesis, hernia, length of stay, gallstones, nausea | Postoperative complications | |
| Feasibility studies, follow-up studies, kaplan-meier estimate, retrospective studies | Research subjects | |
| Operative time, laparoscopic, endoscopic, robotics, laparotomy, suture techniques, surgical stapling | Surgical technique | |
| Recurrence, treatment outcome, reoperation, fatal outcome, treatment failure | Treatment effect | |
| Topic 4 (158) | Lipectomy, reconstructive surgical procedures, female, esthetics, wound healing, cosmetic techniques, rhytidoplasty, buttocks | Body contouring |
| Topic 5 (71) | Body mass index, pregnancy, dietary supplements, malnutrition, vitamins, intestinal absorption, bone density, iron, malabsorption syndromes, micronutrients, anemia, nutrition assessment, folic acid | Nutritional status |
| Topic 6 (21) | Kidney failure, chronic, glomerular filtration rate, albuminuria, diabetic nephropathies, acute kidney injury | Kidney function |