Evidence map›Paper›PMID 33791927›Full record

ArticleObesity surgery2021

Adverse Neonatal and Obstetric Outcomes in a 20-year Brazilian Retrospective Cohort of Pregnancies after Bariatric Surgery.

Leonardo B Walter, Dânia Dolzan, Thais Areias, Carolina G Bergmann, Jacqueline Rizzolli, Cláudio C Mottin, Alexandre V Padoin

Open access · greenAbstract read
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In one paragraph

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 11 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 3 pooled it
2.7field-weighted citation impact, top 10% 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

11 citing papers in PubMed, 3 syntheses or guidelines pooled it, 18 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. Article
  7. Review
  8. Mental Health After Childbirth in Women with Previous Bariatric Surgery: The SPOtMom Pilot Study.Experimental and clinical endocrinology & diabetes : official journal, German Society of Endocrinology [and] German Diabetes Association · 2025
    Observational
  9. Article
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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

7 authors at 2 institutions in 2 countries.

Leonardo B WalterSão Lucas Hospital, Porto Alegre, RS, Brazil. leonardobarbiwalter@gmail.com.ORCID 0000-0002-7402-6102
Dânia DolzanSão Lucas Hospital, Porto Alegre, RS, Brazil.
Thais AreiasSão Lucas Hospital, Porto Alegre, RS, Brazil.
Carolina G BergmannDepartment of Psychiatry and Behavioral Neurosciences, McMaster University, Hamilton, ON, Canada.
Jacqueline RizzolliCenter for Obesity and Metabolic Syndrome, São Lucas Hospital, Porto Alegre, RS, Brazil.
Cláudio C MottinGraduate Program in Medicine and Health Sciences, PUCRS, Porto Alegre, RS, Brazil.
Alexandre V PadoinGraduate Program in Medicine and Health Sciences, PUCRS, Porto Alegre, RS, Brazil.
Hospital São Lucas da PUCRS · BRPontifícia Universidade Católica do Rio Grande do Sul · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeEvaluation of obstetric and neonatal outcomes in a Brazilian retrospective cohort of pregnancies after Roux-en-Y gastric bypass (RYGB), regarding the 2009 Institute of Medicine (IOM) recommendations about gestational weight gain (GWG) and RYGB-conception interval. Additionally, search for intrapopulation risk factors for small gestational age (SGA) offspring and mental health assessments. MATERIAL AND

methodsRetrospective analysis of 132 singleton pregnancies after RYGB. Obstetric and neonatal outcomes were analyzed with stratification in above, below, or meeting the target regarding GWG guidance, and 0-12, 12-47, and ≥48 months for RYGB-conception interval. SGA risk factors were identified through Poisson regression analysis.

resultsGWG below the recommendations was associated with prematurity (p 0.003). Late conceptions (≥48 months) were associated with iron deficiency (p 0.025). Parenteral iron prescription was a protective factor for SGA, with a relative risk of 0.41 (95% CI, 0.20-0.85; p 0.017), and GWG below target was a SGA risk factor, with a relative risk of 4.68 (95% CI, 1.48-14.8; p 0.008). In all, 15.2% of patients had psychopharmacological treatment during pregnancy, and 7.6% received a diagnosis of postpartum depression. Any alcohol and tobacco consumption were reported in 3.8 and 6.8% of patients, respectively.

conclusionThe recommendations regarding GWG apply to the RYGB population, and surgery-conception intervals should be individualized. The parenteral iron prescription was a protective factor for SGA, and GWG below the recommendations of the IOM was a risk factor for SGA. Psychological and psychiatric care should be offered to every possible pregnancy after RYGB.

Indexed as

Bariatric SurgeryObesity, MorbidPregnancy ComplicationsBody Mass IndexBrazilFemaleHumansInfant, NewbornPregnancyPregnancy OutcomeRetrospective StudiesBariatric surgeryGestational weight gainMental healthObesityPregnancy

Identifiers

PMID33791927
OpenAlexW3152139676

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.