Evidence map›Paper›PMID 34702910›Full record

Trial reportScientific reports2021

The influence of gestational weight gain after bariatric procedures on selected pregnancy outcomes: a single center study.

Maciej Walędziak, Joanna Kacperczyk-Bartnik, Paweł Bartnik, Krzysztof Czajkowski, Andrzej Kwiatkowski, Anna Różańska-Walędziak

Abstract readClinical Trial
In one paragraph

Trial report in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

3 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Development and Validation of Breastfeeding After Bariatric Surgery Scale.Journal of human lactation : official journal of International Lactation Consultant Association · 2026
    Article
  3. 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

6 authors.

Maciej WalędziakDepartment of General, Oncological, Metabolic and Thoracic Surgery, Military Institute of Medicine, Szaserów 128 St., Warsaw, Poland. maciej.waledziak@gmail.com.ORCID 0000-0003-4311-9995
Joanna Kacperczyk-Bartnik2nd Department of Obstetrics and Gynecology, Medical University of Warsaw, Karowa 2 St., Warsaw, Poland.
Paweł Bartnik2nd Department of Obstetrics and Gynecology, Medical University of Warsaw, Karowa 2 St., Warsaw, Poland.
Krzysztof Czajkowski2nd Department of Obstetrics and Gynecology, Medical University of Warsaw, Karowa 2 St., Warsaw, Poland.
Andrzej KwiatkowskiDepartment of General, Oncological, Metabolic and Thoracic Surgery, Military Institute of Medicine, Szaserów 128 St., Warsaw, Poland.
Anna Różańska-Walędziak2nd Department of Obstetrics and Gynecology, Medical University of Warsaw, Karowa 2 St., Warsaw, Poland.ORCID 0000-0002-5764-3811

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pregnancy after bariatric surgery is known to be associated with a higher risk of small for gestational age infants (SGA) and maternal anemia. 71 patients with a history of bariatric surgery, who had at least one pregnancy ended with a delivery of a single live-born neonate after the bariatric surgery were included in the study. The main endpoints were gestational weight gain (GWG), GWG as % of the maternal weight at the beginning of pregnancy (GWG%), maternal anemia, SGA and large for gestational age infants (LGA), neonatal intensive care unit admission (NICU). GWG% was 23.8% ± 14.1 in the LGA group vs 13.9% ± 11.0 in the normal weight neonates group; p < 0.03. Patients diagnosed with anemia before pregnancy had higher GWG% than patients without pre-pregnancy anemia (20.1% ± 11.1 vs 13.4% ± 11.6); p < 0.05. GWG% was higher in patients, whose infants were admitted to NICU (25.3% ± 17.6 vs 14.1% ± 11.0; p < 0.04). GWG% can be considered a risk predictor of the LGA and NICU admissions in bariatric patients. Anemia diagnosed before pregnancy is associated with higher GWG%.

Indexed as

Bariatric SurgeryBody Mass IndexGestational Weight GainObesityPregnancy OutcomeAdultAnemiaFemaleHumansPregnancy

Identifiers

PMID34702910
PMCPMC8548494

What OpenQuestion holds

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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.