Interrater Reliability for Classifying Craniofacial Microsomia Severity: A Call for Objective Evaluation

Author:

Ronde Elsa M.1234ORCID,Nolte Jitske W.24ORCID,Becking Alfred G.234,Breugem Corstiaan C.134ORCID

Affiliation:

1. Department of Plastic, Reconstructive and Hand Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands

2. Department of Oral and Maxillofacial Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands

3. Amsterdam Reproduction and Development research institute, Amsterdam, the Netherlands

4. Amsterdam UMC Expert Center for Cleft, Craniofacial and Airway Disorders, Amsterdam, the Netherlands

Abstract

Objective The severity of craniofacial microsomia (CFM) is generally classified using the Orbit, Mandible, Ear, Soft tissue, Nerve (OMENS) classification score. The global assessment of the Phenotypic Assessment Tool for Craniofacial Microsomia (PAT-CFM), is a pictorial modification of the OMENS classification. The aim of this study was to assess the interrater reliability of the PAT-CFM global assessment score. Design In this prospective cohort study, three clinicians completed the global assessment form of the PAT-CFM. The mandible was classified based on orthopantomogram- and/or computed tomography images. Participants Consecutive patients with CFM or microtia. Interrater agreement was calculated using the weighted Krippendorff alpha (α), with 95% confidence intervals (CI). Results In total, 53 patients were included (106 hemifaces). The reliabilities of the main classification components ranged from high for the mandible (α = 0.904 [95% CI 0.860–0.948]) and ear (α = 0.958 [95% CI 0.934–0.983]) subscales, to tentative for the orbital summary score (α = 0.682 [0.542–0.821]), and nerve summary score (α = 0.782 [0.666–0.900]) subscales. Conclusions The reliability of the ear and radiographic mandible scales of the PAT-CFM global classification were high, while the orbit, facial nerve and soft tissue subscales may have limited reliability. Research focusing on radiographic severity scores for hypoplasia of the orbits and soft tissues, as well as objective measures for overall facial hypoplasia using non-ionizing forms of imaging for early classification, are warranted.

Publisher

SAGE Publications

Subject

Otorhinolaryngology,Oral Surgery

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