Cited by 14Bariatric Surgery and OutcomesBody Contouring and SurgeryMinimally Invasive Surgical Techniques

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Changes in serum albumin and liver enzymes following three different types of bariatric surgery: six-month follow-up. A retrospective cohort study

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Abstract

BACKGROUND: Few reports have examined the effects of Roux-en-Y gastric bypass (RYGB), one-anastomosis gastric bypass (OAGB) and sleeve gastrectomy (SG) on changes to serum albumin (Alb) and liver enzyme levels. OBJECTIVE: To compare short-term post-surgery changes in serum Alb, aspartate aminotransferase (AST), alanine aminotransferase (ALT) and alkaline phosphatase (ALKP) levels. Body composition changes were also measured and compared among three groups. DESIGN AND SETTING: Retrospective cohort study conducted in Tehran, Iran. METHODS: 151 OAGB, RYGB and SG patients referred to the obesity clinic of Hazrat-e Rasool General Hospital, Tehran, Iran, were evaluated. Physical characteristics and biochemical parameters were measured pre-surgery and then after three and six months. RESULTS: Through repeated measurements to determine intragroup changes, significant changes in serum AST (P = 0.003) and ALT (P < 0.001) were observed in follow-ups. However, Alb levels did not change (P = 0.413). Body fat, fat-free mass and muscle mass decreased significantly in each group (P < 0.05). In a univariate general linear model for determining intergroup changes, SG showed greater decreases in ALT and AST at three and six months (P < 0.05) and in ALKP at six months (P = 0.037), compared with OAGB. There were no significant differences in Alb levels. Also, RYGB had a greater effect on reducing fat percentage (three months, P = 0.011; six months, P = 0.059) and fat mass (three months, P = 0.042) than OAGB. CONCLUSION: SG and RYGB may be superior to OAGB in reducing liver enzymes and body fat, respectively. However, Alb levels showed no significant differences.

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Metadata

Authors
Zadeh, M. H., Zamaninour, N., Ansar, H., Kabir, A., Pazouki, A., & Farsani, G. M.
Affiliations
  • Tehran University of Medical Sciences (IR)
  • Iran University of Medical Sciences (IR)
Corresponding author
Farsani, Gholamreza Mohammadi
Venue
Sao Paulo Medical Journal
Published
2021-12
Volume
139
Issue
6
Pages
598-606
ISSN
  • 0035-0362 (ISSN-L)
  • 1806-9460
  • 1516-3180
OpenAlex
W3206891423
Cited by
14
References
1
Citations by year
2026: 3 · 2025: 5 · 2024: 2 · 2023: 2 · 2022: 2
FWCI
1.41
Type
journal article
Language
en
Open access
Locations
  • Sao Paulo Medical Journal (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (publishedVersion, cc-by)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (publishedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Health Sciences › Medicine › Surgery › Bariatric Surgery and Outcomes
  • Health Sciences › Medicine › Surgery › Body Contouring and Surgery
  • Health Sciences › Medicine › Surgery › Minimally Invasive Surgical Techniques
Keywords
bariatric surgery, Roux-en-Y gastric bypass, one anastomosis gastric bypass, sleeve gastrectomy, serum albumin, liver enzymes, aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, body composition, fat loss, obesity
MeSH terms
Follow-Up Studies, Gastrectomy, Humans, Iran, Liver, Obesity, Morbid, Retrospective Studies, Serum Albumin, Gastric Bypass, Treatment Outcome, Bariatric Surgery

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