Evidence map›Paper›PMID 32951903›Full record

ArticleSurgery2021

Application of machine learning to the prediction of postoperative sepsis after appendectomy.

Corinne Bunn, Sujay Kulshrestha, Jason Boyda, Neelam Balasubramanian, Steven Birch, Ibrahim Karabayir, Marshall Baker, Fred Luchette, François Modave, Oguz Akbilgic

Open access · greenAbstract read
In one paragraph

Article in Surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 4 pooled it
2.8field-weighted citation impact, top 8% 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

17 citing papers in PubMed, 4 syntheses or guidelines pooled it, 48 citations in OpenAlex.

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  6. LASSO-based machine learning algorithm for prediction of dysphagia in patients suffering anterior cervical discectomy and fusion.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026
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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 3 institutions in 2 countries.

Corinne BunnDepartment of Surgery, Loyola University Medical Center, Maywood, IL; Burn Shock Trauma Research Institute, Loyola University Chicago, Maywood, IL.
Sujay KulshresthaDepartment of Surgery, Loyola University Medical Center, Maywood, IL; Burn Shock Trauma Research Institute, Loyola University Chicago, Maywood, IL.
Jason BoydaInformatics and Systems Development, Health Sciences Division, Loyola University Chicago, Maywood IL.
Neelam BalasubramanianInformatics and Systems Development, Health Sciences Division, Loyola University Chicago, Maywood IL.
Steven BirchInformatics and Systems Development, Health Sciences Division, Loyola University Chicago, Maywood IL.
Ibrahim KarabayirCenter for Health Outcomes and Informatics Research, Health Sciences Division, Loyola University Chicago, Maywood, IL; Department of Health Informatics and Data Science, Loyola University Chicago, Chicago, IL; Kirklareli University, Kirklareli, Turkey.
Marshall BakerDepartment of Surgery, Loyola University Medical Center, Maywood, IL; Edward Hines, Jr Veterans Administration Hospital, Hines, IL.
Fred LuchetteDepartment of Surgery, Loyola University Medical Center, Maywood, IL; Edward Hines, Jr Veterans Administration Hospital, Hines, IL.
François ModaveDepartment of Health Outcomes and Biomedical Informatics, College of Medicine, University of Florida, Gainesville, FL.
Oguz AkbilgicCenter for Health Outcomes and Informatics Research, Health Sciences Division, Loyola University Chicago, Maywood, IL; Department of Health Informatics and Data Science, Loyola University Chicago, Chicago, IL. Electronic address: oakbilgic@luc.edu.
Loyola University Chicago · USLoyola University Medical Center · USUniversity of Florida · US

Funding

Training in Neuroimmunoendocrine Effects of AlcoholT32AA013527 · NIAAA · LOYOLA UNIVERSITY CHICAGO · PI CHOUDHRY, MASHKOOR A · 2002 to 2021
$4.4M
TRAINING IN TRAUMA AND BURN RESEARCHT32GM008750 · NIGMS · LOYOLA UNIVERSITY CHICAGO · PI CHOUDHRY, MASHKOOR A, GONZALEZ, RICHARD PAUL · 2000 to 2023
$2.9M
NIAAA NIH HHS T32 AA013527NIGMS NIH HHS T32 GM008750
6 · The paper itself

Abstract

backgroundWe applied various machine learning algorithms to a large national dataset to model the risk of postoperative sepsis after appendectomy to evaluate utility of such methods and identify factors associated with postoperative sepsis in these patients.

methodsThe National Surgery Quality Improvement Program database was used to identify patients undergoing appendectomy between 2005 and 2017. Logistic regression, support vector machines, random forest decision trees, and extreme gradient boosting machines were used to model the occurrence of postoperative sepsis.

resultsIn the study, 223,214 appendectomies were identified; 2,143 (0.96%) were indicated as having postoperative sepsis. Logistic regression (area under the curve 0.70; 95% confidence interval, 0.68-0.73), random forest decision trees (area under the curve 0.70; 95% confidence interval, 0.68-0.73), and extreme gradient boosting (area under the curve 0.70; 95% confidence interval, 0.68-0.73) afforded similar performance, while support vector machines (area under the curve 0.51; 95% confidence interval, 0.50-0.52) had worse performance. Variable importance analyses identified preoperative congestive heart failure, transfusion, and acute renal failure as predictors of postoperative sepsis.

conclusionMachine learning methods can be used to predict the development of sepsis after appendectomy with moderate accuracy. Such predictive modeling has potential to ultimately allow for preoperative recognition of patients at risk for developing postoperative sepsis after appendectomy thus facilitating early intervention and reducing morbidity.

Indexed as

Machine LearningAdultAppendectomyArea Under CurveDisease SusceptibilityFactor Analysis, StatisticalFemaleHumansMaleMiddle AgedModels, TheoreticalPostoperative ComplicationsPrognosisPublic Health SurveillanceROC CurveSepsis

Identifiers

PMID32951903
PMCPMC7927311
OpenAlexW3087173894

What OpenQuestion holds

Textmetadata
LicenceTDM
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.