Muteweye Wilfred, Muguti Godfrey I
Dept. of Surgery, College of Health Sciences, University of Zimbabwe, Zimbabwe.
Ann Med Surg (Lond). 2015 Aug 20;4(3):287-92. doi: 10.1016/j.amsu.2015.08.003. eCollection 2015 Sep.
Prominent ear is the most common congenital ear deformity affecting 5% of children in the Western world and has profound psychosocial effects on the bearer. It is important to know the prevalence in the local population to have a better appreciation of the local burden of the abnormality as well as to know the parameters of ear morphology locally. These parameters can be useful in the diagnosis and evaluation of ear anomalies and may help reconstructive surgeons in reproducing an anatomically correct ear of an African/Zimbabwean child.
To evaluate the frequency of prominent ears in black school going children in Zimbabwe and to establish morphometric properties of the ear.
Prospective observational, cross sectional study.
Three Primary schools in Harare. Two in a high density area and one in a low density area.
Three Primary schools in Harare were selected at random. The following measurements were taken: ear lengths, ear projection and face height using a sliding caliper. Three hundred and five healthy pupils of the age range 9-13 years of both sexes were included in the study, whilst children with congenital anomalies, ear tumours and history of ear trauma were excluded.
The mean ear height across the cohort was 56.95 ± 5.00 (right ear) and 56.86 ± 4.92 (left ear). Ear projection was 19.52 ± 2.14 (right ear) and 19.59 ± 2.09 (left ear). Gender related differences were noted. Mean ear height was significantly higher in males (p-value = 0.000). Ear projection was higher in males compared to females. A total of 6.89% had prominent ears. Among males, 7.69% had prominent ears whilst 6.17% of females had prominent ears.
The prevalence of prominent ear among black African children in the studied population is comparable to that of Caucasians. The study provides a set of biometric data of auricular dimensions for normal black African children aged 9-13 years.
招风耳是最常见的先天性耳部畸形，在西方世界影响着5%的儿童，对患者有深远的心理社会影响。了解当地人群中的患病率对于更好地认识该异常在当地的负担以及了解当地耳部形态参数非常重要。这些参数在耳部异常的诊断和评估中可能有用，并可能有助于重建外科医生再造出解剖结构正确的非洲/津巴布韦儿童耳朵。
评估津巴布韦黑人学龄儿童中招风耳的发生率，并确定耳朵的形态学特征。
前瞻性观察性横断面研究。
哈拉雷的三所小学。两所位于高密度地区，一所位于低密度地区。
随机选择哈拉雷的三所小学。使用游标卡尺进行以下测量：耳长、耳突出度和面部高度。研究纳入了305名年龄在9至13岁的健康男女学生，排除了患有先天性异常、耳部肿瘤和耳部外伤史的儿童。
整个队列的平均耳高为56.95±5.00（右耳）和56.86±4.92（左耳）。耳突出度为19.52±2.14（右耳）和19.59±2.09（左耳）。观察到了性别相关差异。男性的平均耳高显著更高（p值=0.000）。男性的耳突出度高于女性。共有6.89%的人患有招风耳。男性中，7.69%患有招风耳，而女性中6.17%患有招风耳。
研究人群中非洲黑人儿童中招风耳的患病率与白种人相当。该研究提供了一组9至13岁正常非洲黑人儿童耳部尺寸的生物测量数据。
