Evidence map›Paper›PMID 32848203›Full record

ArticleInternational journal of obesity (2005)2021

Roux-en-Y gastric bypass and gastric sleeve surgery result in long term bone loss.

Malgorzata M Brzozowska, Thach Tran, Dana Bliuc, John Jorgensen, Michael Talbot, Douglas Fenton-Lee, Weiwen Chen, Angel Hong, Alex Viardot, Chris P White and 5 more

Abstract read
PubMed Publisher
In one paragraph

Article in International journal of obesity (2005), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 5 pooled it
3.9field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 5 syntheses or guidelines pooled it, 32 citations in OpenAlex.

  1. Pooled it
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  3. Changes in volumetric bone mineral density and bone quality after Roux-en-Y gastric bypass: A meta-analysis with meta-regression.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2022
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  17. Reduced bone mineral density in the first year after total pancreatectomy with islet autotransplantation (TPIAT).Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.] · 2021
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors at 6 institutions in 1 country.

Malgorzata M BrzozowskaOsteoporosis and Bone Biology Division, Garvan institute of Medical Research, Sydney, NSW, Australia.
Thach TranOsteoporosis and Bone Biology Division, Garvan institute of Medical Research, Sydney, NSW, Australia.ORCID http://orcid.org/0000-0002-6454-124X
Dana BliucOsteoporosis and Bone Biology Division, Garvan institute of Medical Research, Sydney, NSW, Australia.
John JorgensenSt George Private Hospital, Sydney, NSW, Australia.
Michael TalbotUniversity of New South Wales Sydney, Faculty of Medicine, Sydney, NSW, Australia.
Douglas Fenton-LeeSt Vincent's Private Hospital, Sydney, NSW, Australia.
Weiwen ChenOsteoporosis and Bone Biology Division, Garvan institute of Medical Research, Sydney, NSW, Australia.
Angel HongClinical Chemistry & Endocrinology, NSW Health Pathology, Prince of Wales Hospital, Sydney, NSW, Australia.
Alex ViardotOsteoporosis and Bone Biology Division, Garvan institute of Medical Research, Sydney, NSW, Australia.
Chris P WhiteUniversity of New South Wales Sydney, Faculty of Medicine, Sydney, NSW, Australia.ORCID http://orcid.org/0000-0002-7732-2206
Tuan V NguyenOsteoporosis and Bone Biology Division, Garvan institute of Medical Research, Sydney, NSW, Australia.
Nicholas PocockUniversity of New South Wales Sydney, Faculty of Medicine, Sydney, NSW, Australia.
John A EismanOsteoporosis and Bone Biology Division, Garvan institute of Medical Research, Sydney, NSW, Australia.
Paul A Baldock *Osteoporosis and Bone Biology Division, Garvan institute of Medical Research, Sydney, NSW, Australia.
Jacqueline R Center *Osteoporosis and Bone Biology Division, Garvan institute of Medical Research, Sydney, NSW, Australia. j.center@garvan.org.au.ORCID http://orcid.org/0000-0002-5278-4527
Garvan Institute of Medical Research · AUUNSW Sydney · AUPrince of Wales Hospital · AUSt George Hospital · AUSt Vincent’s Private Hospital Sydney · AUUniversity of Technology Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesLittle is known about the long-term skeletal impact of bariatric procedures, particularly the increasingly commonly performed gastric sleeve surgery (GS). We examined bone density (BMD) change following three types of bariatric surgery Roux-en-Y gastric bypass (RYGB), GS and laparoscopic adjustable gastric banding (LAGB), compared with diet, over 36 months.

methodsNon-randomized, prospective study of participants with severe obesity (n = 52), undergoing weight-loss interventions: RYGB (n = 7), GS (n = 21), LAGB (n = 11) and diet (n = 13). Measurements of calciotropic indices, gut hormones (fasting and post prandial) peptide YY (PYY), glucagon-like peptide 1 (GLP1) and adiponectin together with dual-X-ray absorptiometry and quantitative computed tomography scans were performed thorough the study.

resultsAll groups lost weight during the first 12 months. Despite weight stability from 12 to 36 months and supplementation of calcium and vitamin D, there was progressive bone loss at the total hip (TH) over 36 months in RYGB -14% (95% CI: -12, -17) and GS -9% (95% CI: -7, -10). In RYGB forearm BMD also declined over 36 months -9% (95% CI: -6, -12) and LS BMD declined over the first 12 months -7% (95% CI: -3, -12). RYGB and GS groups experienced significantly greater bone loss until 36 months than LAGB and diet groups, which experienced no significant BMD loss. These bone losses remained significant after adjustment for weight loss and age. RYGB and GS procedures resulted in elevated postprandial PYY, adiponectin and bone turnover markers up to 36 months without such changes among LAGB and diet participants.

conclusionsRYGB and GS but not LAGB resulted in ongoing TH bone loss for three postoperative years. For RYGB, bone loss was also observed at LS and non-weight-bearing forearms. These BMD changes were independent of weight and age differences. We, therefore, recommend close monitoring of bone health following RYGB and GS surgeries.

Indexed as

Gastric BypassAdultBone DensityFemaleHumansMiddle AgedObesity, MorbidProspective StudiesWeight Loss

Identifiers

PMID32848203
OpenAlexW3080081028

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.