-
Comparative Study
Risks of radiation versus risks from injury: a clinical decision analysis for the management of penetrating palatal trauma in children.
- Kara E Hennelly, Andrew M Fine, Dwight T Jones, and Stephen Porter.
- Division of Emergency Medicine, Boston Children's Hospital, Boston, Massachusetts 02115, USA. kara.hennelly@childrens.harvard.edu
- Laryngoscope. 2013 May 1;123(5):1279-84.
Objectives/HypothesisPenetrating palatal trauma in children presents a diagnostic dilemma regarding the small but severe risk of injury to carotid vessels. Decisions regarding which children require computed tomography with angiography must be balanced against the risk of radiation-induced malignancy. Our objectives were to compare outcomes between children with and without computed tomography with angiography in the evaluation of palatal trauma and to identify thresholds where the ideal strategy changes in the management of children with palatal trauma through sensitivity analyses.Study DesignDecision analytic techniques were used to compare management strategies for penetrating palatal trauma.MethodsWe assigned utilities to the following outcomes: 1) perfect health, 2) future malignancy, 3) carotid injury diagnosed by computed tomography with angiography, and 4) delayed diagnosis of stroke. We calculated outcomes when the risk of stroke ranged from 0.01% to 5.0% for a hypothetical cohort of 10,000 injured children.ResultsNot obtaining computed tomography with angiography is the optimal strategy when the stroke risk is less than 4.5%. In two-way sensitivity analyses that consider a range of probabilities of radiation-induced malignancy and stroke, not obtaining computed tomography with angiography on all patients dominates as a strategy until the risk of stroke exceeds 2.3%, and the risk of malignancy is under 0.24%. Routine imaging would introduce 20 additional malignancies for each additional stroke diagnosed.ConclusionsRoutine use of computed tomography with angiography for well-appearing children with palatal trauma should be reconsidered, as the risk of radiation-induced malignancy may outweigh the benefit of identifying the rare carotid injury.Level Of Evidence2b.Copyright © 2013 The American Laryngological, Rhinological and Otological Society, Inc.
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