Evidence map›Paper›PMID 34145492›Full record

ArticleJournal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract2022

Preoperative Weight Loss as a Predictor of Bariatric Surgery Postoperative Weight Loss and Complications.

Jamil S Samaan, Jasmine Zhao, Elaine Qian, Angelica Hernandez, Omar Toubat, Evan T Alicuben, Yousaf Malik, Kulmeet Sandhu, Adrian Dobrowolsky, Kamran Samakar

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Article in Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 11% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

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  16. BAROS PROTOCOL IN A UNIVERSITY HOSPITAL: WHAT IS THE IMPORTANCE IN THE POSTOPERATIVE RESULTS OF BARIATRIC SURGERY?Arquivos brasileiros de cirurgia digestiva : ABCD = Brazilian archives of digestive surgery · 2023
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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

10 authors at 2 institutions in 1 country.

Jamil S SamaanDepartment of Medicine, Cedars Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA, 90048, USA.
Jasmine ZhaoDivision of Upper GI & General Surgery, Department of Surgery, Keck School of Medicine of the University of Southern California, 1510 San Pablo St, Suite 51, Los Angeles, CA, 90033, USA.
Elaine QianDivision of Upper GI & General Surgery, Department of Surgery, Keck School of Medicine of the University of Southern California, 1510 San Pablo St, Suite 51, Los Angeles, CA, 90033, USA.
Angelica HernandezDivision of Upper GI & General Surgery, Department of Surgery, Keck School of Medicine of the University of Southern California, 1510 San Pablo St, Suite 51, Los Angeles, CA, 90033, USA.
Omar ToubatDivision of Upper GI & General Surgery, Department of Surgery, Keck School of Medicine of the University of Southern California, 1510 San Pablo St, Suite 51, Los Angeles, CA, 90033, USA.
Evan T AlicubenDivision of Upper GI & General Surgery, Department of Surgery, Keck School of Medicine of the University of Southern California, 1510 San Pablo St, Suite 51, Los Angeles, CA, 90033, USA.
Yousaf MalikDivision of Upper GI & General Surgery, Department of Surgery, Keck School of Medicine of the University of Southern California, 1510 San Pablo St, Suite 51, Los Angeles, CA, 90033, USA.
Kulmeet SandhuDivision of Upper GI & General Surgery, Department of Surgery, Keck School of Medicine of the University of Southern California, 1510 San Pablo St, Suite 51, Los Angeles, CA, 90033, USA.
Adrian DobrowolskyDivision of Upper GI & General Surgery, Department of Surgery, Keck School of Medicine of the University of Southern California, 1510 San Pablo St, Suite 51, Los Angeles, CA, 90033, USA.
Kamran SamakarDivision of Upper GI & General Surgery, Department of Surgery, Keck School of Medicine of the University of Southern California, 1510 San Pablo St, Suite 51, Los Angeles, CA, 90033, USA. kamran.samakar@med.usc.edu.
University of Southern California · USCedars-Sinai Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe association between preoperative weight loss and bariatric surgery outcomes remains unclear. We explored the utility of preoperative weight loss as a predictor of postoperative weight loss success. Additionally, we examined the association of preoperative weight loss with perioperative complication rates.

methodsRetrospective chart review of patients who underwent primary sleeve gastrectomy or primary Roux-en-Y gastric bypass for weight loss at a single institution between January 2003 and November 2017. Additional follow-up was obtained by a postoperative standardized patient questionnaire. Statistical analysis consisted of bivariate and multivariate logistic regression analysis.

resultsOur study included 427 patients. Majority were female (n = 313, 73.3%) and underwent sleeve gastrectomy (n = 261, 61.1%). Average age was 45.6 years, and average follow-up was 6.3 years. Greater preoperative weight loss was associated with decreased length of stay (1.8 vs 1.3 days) in patients who underwent sleeve gastrectomy. Multivariable regression analysis revealed that preoperative weight loss was not associated with postoperative weight loss.

conclusionsPreoperative weight loss is not predictive of postoperative weight loss success after bariatric surgery. Greater preoperative weight loss was associated with a mild decreased in length of stay but was not associated with a reduction in operative time, overall complication rates, ICU admissions, or intraoperative complications. The inconclusive literature and our findings do not support the medical necessity of weight loss prior to bariatric surgery for the purpose of reducing surgical complications or predicting successful postoperative weight loss success.

Indexed as

Bariatric SurgeryGastric BypassLaparoscopyObesity, MorbidFemaleGastrectomyHumansMaleMiddle AgedPostoperative ComplicationsRetrospective StudiesTreatment OutcomeWeight LossBariatric surgeryPostoperative weight lossPreoperative weight lossSurgical complications

Identifiers

PMID34145492
OpenAlexW3168481604

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.