Cousley R R
School of Clinical Dentistry, Queen's University of Belfast, Northern Ireland.
Br J Oral Maxillofac Surg. 1993 Apr;31(2):78-82. doi: 10.1016/0266-4356(93)90165-s.
The classification of hemifacial microsomia (HFM) aids in diagnosis, treatment planning, prognostic predictions and data evaluation. The aetiological and phenotypic heterogeneities of HFM, however, make its classification problematic. This study used data from 50 patients to examine the classification of HFM and to compare two systems: OMENS and SAT. The results were concordant with current literature and demonstrated the phenotypic heterogeneity of HFM. Essentially, both classifications embody the major craniofacial defects, but the OMENS system appears to be further refined by its differentiation between soft tissue and nerve defects, and between orbital and mandibular defects. Neither system, however, records deafness or grades auricular tags, although tags occurred in 34% of cases and two patients with otherwise 'normal' ears had tags. Therefore, it is suggested that auricular tags be graded as minor ear malformations. Furthermore, the OMENS system could be strengthened by the addition of an asterisk to the acronym in cases with serious non-craniofacial anomalies, for example OMENS*. This adds little complexity to the acronym, but immediately indicates when a patient's features lie towards the more generalised oculoauriculovertebral end of the phenotypic spectrum.
半侧颜面短小畸形（HFM）的分类有助于诊断、治疗方案制定、预后预测及数据评估。然而，HFM病因和表型的异质性使其分类存在问题。本研究使用了50例患者的数据来研究HFM的分类，并比较两种分类系统：OMENS和SAT。结果与当前文献一致，证实了HFM的表型异质性。本质上，两种分类都涵盖了主要的颅面缺陷，但OMENS系统通过区分软组织和神经缺陷以及眼眶和下颌骨缺陷，似乎更为精细。然而，两种系统均未记录耳聋情况或对耳赘进行分级，尽管34%的病例出现了耳赘，且有两名耳部其他方面“正常”的患者也有耳赘。因此，建议将耳赘分级为轻度耳部畸形。此外，对于伴有严重非颅面异常的病例，可在OMENS首字母缩写词后添加星号（例如OMENS*）来强化该系统。这几乎不会增加首字母缩写词的复杂性，但能立即表明患者的特征处于表型谱中更具广泛性的眼耳脊椎端。
