ArticleObesity surgery2021
Comparison of Bioelectrical Impedance Analysis and Computed Tomography on Body Composition Changes Including Visceral Fat After Bariatric Surgery in Asian Patients with Obesity.
Article in Obesity surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 24 citations in OpenAlex.
- HDL-C and visceral adipose tissue as combined predictors of visceral fat changes following laparoscopic sleeve gastrectomy.BMC surgery · 2025Trial
- Evaluation of the efficacy and safety of controlled-release phentermine/topiramate in adults with obesity in Korea: A randomized, double-blind, placebo-controlled, phase 4 trial (QUEEN's study).Diabetes, obesity & metabolism · 2025Trial
- Trial
- Bioelectrical impedance-derived body composition and systemic therapy outcomes in non-small cell lung cancer.Translational lung cancer research · 2026Article
- 8-Year Outcomes After Sleeve Gastrectomy: Anthropometric, Biochemical, and Nutritional Evaluation.Obesity surgery · 2026Observational
- Comparison of bioimpedance and anthropometric estimates of body fat in patients with mild autonomous cortisol secretion and nonfunctional adrenal incidentalomas.Archives of endocrinology and metabolism · 2026Article
- Longitudinal analysis of body compositions following Roux-en-Y gastric bypass.Langenbeck's archives of surgery · 2026Article
- Accuracy of Body Composition Prediction Equations in Middle-Aged Females with Class II and III Obesity.Obesity surgery · 2026Article
- Association between multiple urinary metals and visceral obesity: a large cross-sectional study in South China.European journal of medical research · 2026Article
- Adherence to an Early Exercise Plan Promotes Visceral Fat Loss in the First Month Following Bariatric Surgery.Obesity surgery · 2025Article
- Regional fat distribution and hepatic fibrosis and steatosis severity in patients with nonalcoholic fatty liver disease and type 2 diabetes.Obesity science & practice · 2024Article
- Article
- Influence of body composition assessment with bioelectrical impedance vector analysis in cancer patients undergoing surgery.Frontiers in oncology · 2023Article
- Sarcopenia after Roux-en-Y Gastric Bypass: Detection by Skeletal Muscle Mass Index vs. Bioelectrical Impedance Analysis.Journal of clinical medicine · 2022Article
- Association Between Fat Mass or Fat Fibrotic Gene Expression and Polyneuropathy in Subjects With Obesity: A Korean Metabolic Bariatric Surgery Cohort.Frontiers in endocrinology · 2022Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe accuracy of bioelectrical impedance analysis (BIA) in patients with obesity has been controversial. This study aimed to validate the use of BIA in detecting body composition changes, especially for visceral fat, before and after bariatric surgery using computed tomography (CT) as a reference method. MATERIALS AND
methodsThis retrospective study included Korean patients with a BMI of ≥ 35, or ≥ 30 with metabolic comorbidities. All patients underwent bariatric surgery, and underwent BIA and CT evaluation before and 6 months after the operation. The skeletal muscle index (SMI) and visceral fat index (VFI), variables corrected for height, were compared between BIA and CT.
resultsForty-eight patients (18 men, 30 women) demonstrated a mean weight loss of 27.5 kg. Significant decreases in both VFI and SMI were observed in both BIA and CT (all p<0.001), with greater VFI change compared to SMI (48.2% vs. 10.4% in CT, respectively). Both pre- and post-operative measurements of VFI and SMI were significantly correlated between BIA and CT (all p<0.05). However, the percent decrease was significantly correlated only with VFI (ρ=0.71, p<0.001). The Bland-Altman analysis showed that BIA underestimated VFI, with a greater degree of underestimation in subjects with higher VFI.
conclusionDespite the underestimation of BIA in measuring visceral fat, BIA VFI was associated with CT VFI. The SMI values showed significant correlations before and after surgery, but not with the percent decrease. Our results suggest that BIA can be a reliable tool for measuring body composition, especially for visceral fat, after bariatric surgery.
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