Evidence map›Paper›PMID 19412643›Full record

ArticleObesity surgery2009

Evaluation of bone disease in morbidly obese women after gastric bypass and risk factors implicated in bone loss.

Nuria Vilarrasa, José Manuel Gómez, Iñaki Elio, Carmen Gómez-Vaquero, Carles Masdevall, Jordi Pujol, Núria Virgili, Rosa Burgos, Raquel Sánchez-Santos, Amador G Ruiz de Gordejuela and 1 more

Abstract readEvaluation Study
PubMed Publisher
In one paragraph

Article in Obesity surgery, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 4 pooled it
4.1field-weighted citation impact, top 7% 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

43 citing papers in PubMed, 4 syntheses or guidelines pooled it, 95 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Trial
  6. Intestinal Calcium Absorption Decreases Dramatically After Gastric Bypass Surgery Despite Optimization of Vitamin D Status.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2015
    Trial
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  14. Bone Metabolism in Adolescents Undergoing Bariatric Surgery.The Journal of clinical endocrinology and metabolism · 2021
    Review
  15. Article
  16. Article
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  18. Article
  19. The Skeletal Consequences of Bariatric Surgery.Current osteoporosis reports · 2020
    Review
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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

11 authors at 1 institution in 1 country.

Nuria VilarrasaEndocrinology Service, Hospital Universitario de Bellvitge, Barcelona, Spain. nuriavilarrasa@yahoo.es
José Manuel Gómez
Iñaki Elio
Carmen Gómez-Vaquero
Carles Masdevall
Jordi Pujol
Núria Virgili
Rosa Burgos
Raquel Sánchez-Santos
Amador G Ruiz de Gordejuela
Joan Soler
Bellvitge University Hospital · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn patients undergoing gastric bypass, massive weight loss and impairment of calcium intake and absorption in the duodenum and proximal jejunum may increase the risk of bone mass loss and fractures. However, few data are available regarding the impact of this surgery on the skeleton. The aim of our study was to examine the skeletal changes in a cohort of morbidly obese Caucasian women during the first year after gastric bypass and to analyse the factors implicated in the development of bone loss.

methodsSixty-two morbidly obese white women aged 45.3 +/- 8.9 years were studied. Anthropometric measurements, bone mineral density (BMD) screening using dual-energy X- ray absorptiometry and plasma determinations of calcium, phosphorus, parathyroid hormone (PTH), 25-hydroxyvitamin D [25(OH) D(3)] and insulin-like growth factor-I (IGF-I) were made prior to and 12 months after surgery.

resultsA year after surgery, BMD significantly decreased at the femoral neck (10.2 +/- 5.7%) and at the lumbar spine (3.2 +/- 4.4%). In the follow-up, 16.1% of women had osteopenia at the femoral neck and 19.3% at the lumbar spine, and 1.6% developed osteoporosis at the lumbar spine. Patients with bone disease were significantly older; the percentage of women with menopause was greater in this group and had lower initial and final values of lean mass. However, no differences in body mass index, weight loss, fat mass, calcium, PTH, 25(OH) D(3) or IGF-I values were found between groups. In the logistic regression analysis, lean mass 12 months after surgery and menopause were found to be the main determinants of osteopenia after adjusting for age with odds ratios of 0.82 and 9.13, respectively.

conclusionsThere is a significant BMD loss at the femoral neck and lumbar spine a year after gastric bypass. Menopausal patients and those with greater lean mass loss are at greater risk and, consequently, should be closely followed up with periodic densitometries.

Indexed as

Bone DensityAbsorptiometry, PhotonAnthropometryCalciumFemaleFemur NeckGastric BypassHumansInsulin-Like Growth Factor IMiddle AgedObesity, MorbidOsteoporosisParathyroid HormonePhosphorusProspective StudiesRisk FactorsCalciumInsulin-Like Growth Factor IParathyroid HormonePhosphorus

Identifiers

PMID19412643
OpenAlexW1989490260

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.