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ArticleObesity surgery2025

Impact of Preoperative COVID-19 on Postoperative Outcomes in Patients Undergoing Bariatric/Metabolic Surgery: an Updated Analysis of TrinetX Databases.

Yu-Jun Huang, Chia-Li Kao, Kuo-Chuan Hung, Yi-Chen Lai, Jheng-Yan Wu, I-Wen Chen

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Article in Obesity surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

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6citing papers in PubMed
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1 · What the graph read from it

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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.

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3 · Its place in the literature

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6 citing papers in PubMed.

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5 · Who and what money

Authors and funding

6 authors.

Yu-Jun Huang *Department of Anesthesiology, Chi Mei Medical Center, Tainan City, Taiwan.
Chia-Li KaoDepartment of Anesthesiology, E-Da Hospital, I-Shou University, Kaohsiung City, Taiwan.
Kuo-Chuan Hung *Department of Anesthesiology, Chi Mei Medical Center, Tainan City, Taiwan.
Yi-Chen LaiDepartment of Anesthesiology, Chi Mei Medical Center, Tainan City, Taiwan.
Jheng-Yan WuDepartment of Nutrition, Chi Mei Medical Center, Tainan City, Taiwan.
I-Wen ChenDepartment of Anesthesiology, Chi Mei Medical Center, Liouying, Tainan City, Taiwan. cheniwena60912@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe impact of preoperative coronavirus disease (COVID-19) on outcomes after metabolic and bariatric surgery (MBS) remains incompletely understood, as previous studies were conducted early in the pandemic, when viral strains and management differed.

methodsUsing the TriNetX database, we conducted a retrospective analysis of patients who underwent MBS between June 2022 and December 2024. Patients with COVID-19 within 4 weeks before surgery were propensity-score matched 1:1 with controls without prior COVID-19 based on demographics, obesity-associated medical condition, and laboratory values. The primary outcome was the incidence of postoperative pulmonary complications (i.e., pneumonia or acute respiratory failure), while the secondary outcomes included the incidence of acute kidney injury (AKI), intensive care unit (ICU) admission, other infections (i.e., surgical site infection or urinary tract infection), mortality, and emergency department (ED) visits.

resultsAmong 34,652 matched patients, 30-day pulmonary complications showed no significant difference between the COVID-19 and control groups (odds ratio[OR]: 0.898, 95%CI:0.674-1.197, p = 0.4646). However, the COVID-19 group experienced higher rates of AKI (OR:1.407, 95%CI:1.087-1.823, p = 0.0093) and ED visits (OR:1.169, 95%CI:1.082-1.264, p < 0.0001). Other secondary outcomes were similar between the groups. COPD, anemia, and old age were significant risk factors for pulmonary complications. Risk factors for AKI include chronic kidney disease, male sex, anemia, diabetes mellitus, and cardiovascular diseases.

conclusionRecent preoperative COVID-19 was not associated with increased risk of pulmonary complications following MBS, suggesting surgery need not be delayed for this concern. However, enhanced monitoring of renal complications and post-discharge care may be warranted in patients with identified risk factors.

Indexed as

Bariatric SurgeryCOVID-19Postoperative ComplicationsAcute Kidney InjuryAdultDatabases, FactualFemaleHumansMaleMiddle AgedPreoperative PeriodPropensity ScoreRetrospective StudiesRisk FactorsSARS-CoV-2Bariatric surgeryCOVID-19Metabolic surgeryObesityPostoperative complications

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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.