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New research · Surgery
NEJM AI · 4d
AI / informaticsNEJM AI · 2026

Privacy-Preserving Surgical Video Analysis with Swarm Learning - Results from a Multinational Appendectomy Cohort.

O L Saldanha, K Pfeiffer, S Bodenstedt … F R Kolbinger
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SurgeryAI / informatics

Swarm Learning performs comparably to centralized learning for laparoscopic appendicitis grading.

Privacy-Preserving Surgical Video Analysis with Swarm Learning - Results from a Multinational Appendectomy Cohort.

O L Saldanha … F R Kolbinger
NEJM AI · 2026
Background

Progress in artificial intelligence (artificial intelligence)-based analysis of surgical videos has been constrained by reliance on manual frame-level annotations rather than patient-level outcomes.

Methods

We evaluated our pipeline using a dataset of 397 laparoscopic appendectomy recordings from six international centers for two patient-level staging tasks: (1) laparoscopic grading of appendicitis and appendiceal perforation detection; and (2) histopathologic inflammation grading.

n = 397 laparoscopic appendectomy
AUROC: 0.795±0.092
Results
AUROC: 0.795±0.092
Swarm Learning achieved an AUROC of 0.795 for accurately grading laparoscopic appendicitis.
n = 397 laparoscopic appendectomy
“
Conclusion · 1 of 3

Weakly supervised deep learning enables the prediction of patient-level labels directly from surgical video data.

Conclusion · 2 of 3

Swarm Learning facilitates privacy-preserving multicenter collaboration and achieves performance on par with centralized learning, highlighting its potential for advancing clinically relevant, collaborative artificial intelligence development in surgical video analysis.

Conclusion · 3 of 3

(Funded by the European Union and others.).

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