Evidence map›Paper›PMID 38777894›Full record

ArticleSurgical endoscopy2024

Machine learning-based preoperative analytics for the prediction of anastomotic leakage in colorectal surgery: a swiss pilot study.

Stephanie Taha-Mehlitz, Larissa Wentzler, Fiorenzo Angehrn, Ahmad Hendie, Vincent Ochs, Julia Wolleb, Victor E Staartjes, Bassey Enodien, Martinas Baltuonis, Stephan Vorburger and 7 more

Abstract readMulticenter Study
In one paragraph

Article in Surgical endoscopy, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–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

13 citing papers in PubMed.

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  13. Patient perspectives on AI-based decision support in surgery.BMJ surgery, interventions, & health technologies · 2025
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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

17 authors.

Stephanie Taha-Mehlitz *Clarunis, University Center for Gastrointestinal and Liver Diseases, St. Clara Hospital and University Hospital Basel, 4002, Basel, Switzerland.
Larissa Wentzler *Medical Faculty, University Basel, 4056, Basel, Switzerland.
Fiorenzo AngehrnClarunis, University Center for Gastrointestinal and Liver Diseases, St. Clara Hospital and University Hospital Basel, 4002, Basel, Switzerland.
Ahmad HendieDepartment of Computer Engineering, McGill University, Montreal, H3A 0E9, Canada.
Vincent OchsDepartment of Biomedical Engineering, Faculty of Medicine, University of Basel, Hegenheimermattweg 167C Allschwil, 4123, Basel, Switzerland.
Julia WollebDepartment of Biomedical Engineering, Faculty of Medicine, University of Basel, Hegenheimermattweg 167C Allschwil, 4123, Basel, Switzerland.
Victor E StaartjesMachine Intelligence in Clinical Neuroscience (MICN) Laboratory, Department of Neurosurgery, University Hospital Zurich, 8091, Zurich, Switzerland.
Bassey EnodienDepartment of Surgery, GZO-Hospital, 8620, Wetzikon, Switzerland.
Martinas BaltuonisDepartment of Surgery, Emmental Teaching Hospital, 3400, Burgdorf, Switzerland.
Stephan VorburgerDepartment of Surgery, Emmental Teaching Hospital, 3400, Burgdorf, Switzerland.
Daniel M FreyDepartment of Surgery, GZO-Hospital, 8620, Wetzikon, Switzerland.
Robert RosenbergCenter for Gastrointestinal and Liver Diseases, Cantonal Hospital Basel-Landschaft, 4410, Liestal, Switzerland.
Markus von FlüeHirslanden Klinik St. Anna, 6006, Lucerne, Switzerland.
Beat Müller-StichClarunis, University Center for Gastrointestinal and Liver Diseases, St. Clara Hospital and University Hospital Basel, 4002, Basel, Switzerland.
Philippe C CattinDepartment of Biomedical Engineering, Faculty of Medicine, University of Basel, Hegenheimermattweg 167C Allschwil, 4123, Basel, Switzerland.
Anas Taha *Center for Gastrointestinal and Liver Diseases, Cantonal Hospital Basel-Landschaft, 4410, Liestal, Switzerland. anas.taha@unibas.ch.ORCID 0000-0001-8100-1598
Daniel Steinemann *Clarunis, University Center for Gastrointestinal and Liver Diseases, St. Clara Hospital and University Hospital Basel, 4002, Basel, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAnastomotic leakage (AL), a severe complication following colorectal surgery, arises from defects at the anastomosis site. This study evaluates the feasibility of predicting AL using machine learning (ML) algorithms based on preoperative data.

methodsWe retrospectively analyzed data including 21 predictors from patients undergoing colorectal surgery with bowel anastomosis at four Swiss hospitals. Several ML algorithms were applied for binary classification into AL or non-AL groups, utilizing a five-fold cross-validation strategy with a 90% training and 10% validation split. Additionally, a holdout test set from an external hospital was employed to assess the models' robustness in external validation.

resultsAmong 1244 patients, 112 (9.0%) suffered from AL. The Random Forest model showed an AUC-ROC of 0.78 (SD: ± 0.01) on the internal test set, which significantly decreased to 0.60 (SD: ± 0.05) on the external holdout test set comprising 198 patients, including 7 (3.5%) with AL. Conversely, the Logistic Regression model demonstrated more consistent AUC-ROC values of 0.69 (SD: ± 0.01) on the internal set and 0.61 (SD: ± 0.05) on the external set. Accuracy measures for Random Forest were 0.82 (SD: ± 0.04) internally and 0.87 (SD: ± 0.08) externally, while Logistic Regression achieved accuracies of 0.81 (SD: ± 0.10) and 0.88 (SD: ± 0.15). F1 Scores for Random Forest moved from 0.58 (SD: ± 0.03) internally to 0.51 (SD: ± 0.03) externally, with Logistic Regression maintaining more stable scores of 0.53 (SD: ± 0.04) and 0.51 (SD: ± 0.02).

conclusionIn this pilot study, we evaluated ML-based prediction models for AL post-colorectal surgery and identified ten patient-related risk factors associated with AL. Highlighting the need for multicenter data, external validation, and larger sample sizes, our findings emphasize the potential of ML in enhancing surgical outcomes and inform future development of a web-based application for broader clinical use.

Indexed as

Anastomotic LeakMachine LearningAgedAnastomosis, SurgicalFeasibility StudiesFemaleHumansMaleMiddle AgedPilot ProjectsPreoperative CareRetrospective StudiesSwitzerlandAnastomotic insufficiencyAnastomotic leakageColorectal surgeryMachine learningPrediction of anastomotic leakagePrediction tool

Identifiers

PMID38777894
PMCPMC11219450

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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.