Decrease phase angle one year after Roux-en-Y bypass and sleeve gastrectomy is related to risks to protein nutritional status.

Autor: Bortoli AM; Postgraduate Program in Nutrition and Health (PPGNS), Health Sciences Center, Federal University of Espírito Santo, Marecal Campos Ave, 1468, Maruípe, Vitória-ES, 29040-090, Brazil. Electronic address: amandamb15@gmail.com., Braga GB; Postgraduate Program in Nutrition and Health (PPGNS), Health Sciences Center, Federal University of Espírito Santo, Marecal Campos Ave, 1468, Maruípe, Vitória-ES, 29040-090, Brazil. Electronic address: gabrielabernabebraga@gmail.com., Brito BB; Department of Integrated Health Education (DEIS), Health Sciences Center, Federal University of Espírito Santo, Marecal Campos Ave, 1468, Maruípe, Vitória-ES, 29040-090, Brazil. Electronic address: biabobbio@hotmail.com., Moraes RAG; Antônio Cassiano de Moraes University Hospital (HUCAM), Federal University of Espírito Santo, Marechal Campos Ave, 1355, Santos Dumont, Vitória-ES, 29041-295, Brazil. Electronic address: rafaelguedes.nutri@gmail.com., Miguel GPS; Department of Surgical Clinic, Health Sciences Center, Federal University of Espírito Santo, Marechal Campos Ave, 1355, Santos Dumont, Vitória-ES, Brazil. Electronic address: gsoaresp@terra.com.br., Pedrosa RG; Department of Integrated Health Education (DEIS), Health Sciences Center, Federal University of Espírito Santo, Marecal Campos Ave, 1468, Maruípe, Vitória-ES, 29040-090, Brazil. Electronic address: rogergp28@gmail.com., Haraguchi FK; Postgraduate Program in Nutrition and Health (PPGNS), Health Sciences Center, Federal University of Espírito Santo, Marecal Campos Ave, 1468, Maruípe, Vitória-ES, 29040-090, Brazil; Department of Integrated Health Education (DEIS), Health Sciences Center, Federal University of Espírito Santo, Marecal Campos Ave, 1468, Maruípe, Vitória-ES, 29040-090, Brazil. Electronic address: fabianokenji@gmail.com.
Jazyk: angličtina
Zdroj: Clinical nutrition ESPEN [Clin Nutr ESPEN] 2022 Dec; Vol. 52, pp. 138-143. Date of Electronic Publication: 2022 Oct 28.
DOI: 10.1016/j.clnesp.2022.10.018
Abstrakt: Background & Aims: Phase angle (PhA) has been used as an indicator of nutritional status. However, the significance of PhA reduction after bariatric surgery is less known. This study evaluated PhA and its relation with biochemical parameters and prognostic inflammatory and nutritional indices at a one-year follow-up of patients subjected to Roux-en-Y bypass (RYGB) or sleeve gastrectomy (SG).
Methods: Our final sample consisted of 25 patients subjected to RYGB and 11 to SG. Body mass index, fat-free mass, fat mass, PhA, serum transthyretin (TTR), albumin, C-reactive protein, alpha-1-acid glycoprotein, and prognostic inflammatory and nutritional indices were evaluated at four time points: before and approximately two, six, and 12 months after RYGB or SG. One-way repeated measures ANOVA or the Friedman test with Tukey's post hoc test was used depending on data distribution. The correlation between PhA and biochemical parameters and indices were evaluated using Spearman's or Pearson's correlation coefficients.
Results: Except for serum albumin, all parameters significantly decreased over time (p < 0.001). Only the RYGB group showed transthyretinTR values below reference ones. Prognostic indices significantly decreased in both groups (p < 0.001). We found a significant positive correlation of PhA with TTR in both RYGB (r = 0.475; p < 0.001) and SG (r = 0.457; p < 0.001).
Conclusions: Data suggest that at a one-year follow-up after bariatric surgery, lower PhA values might indicate a concomitant loss of visceral protein and a worsening of protein nutritional status.
Competing Interests: Declaration of competing interest The authors declare that they have no conflicts of interest.
(Copyright © 2022 European Society for Clinical Nutrition and Metabolism. Published by Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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