Unruptured intracranial aneurysm (UIA) treatment score (UIATS) - UIA repair
The unruptured intracranial aneurysm (UIA) treatment score (UIATS) model includes and quantifies key factors involved in clinical decision-making in the management of UIAs.
Research authors: Etminan N, Brown RD, Beseoglu K, Juvela S, Raymond J, Morita A, et al. (please refer to original research paper for full list of authors).
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Total UIATS score favoring UIA repair: points

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About this model: 
The unruptured intracranial aneurysm treatment score (UIATS) model includes and quantifies the key factors
for clinical decision-making in the management of unruptured intracranial aneurysms (UIAs), developed based on relevance rating data from Delphi consensus rounds.1,2

How this model should be used: 
Clinicians can use the UIATS as a comprehensive mechanism for indicating how a large group of specialists might manage an individual patient with a UIA. The UIATS score is comprised out of two numerical values: one favoring aneurysm repair (surgical or endovascular) and one favoring conservative management. The current model only calculates the numerical values favoring aneurysm repair. Importantly, clincial decision-support should be based on both numerical values. The full UIATS score is available at Evidencio as a composite model


  1. Etminan N, Brown RD Jr, Beseoglu K, et al. The unruptured intracranial aneurysm treatment score: a multidisciplinary consensus.Neurology. 2015;85(10):881-9. 
  2. Etminan N, Beseoglu K, Barrow DL, et al. Multidisciplinary consensus on assessment of unruptured intracranial aneurysms: proposal of an international research group. Stroke 2014;45:15231530.

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This model is provided for educational, training and information purposes. It must not be used to support medical decision making, or to provide medical or diagnostic services. Read our full disclaimer.

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