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衡阳市主要先天肢体畸形的流行病学分析

Epidemiological Analysis of Selected Congenital Limb Malformations in Hengyang

  • 摘要: 目的 了解衡阳市新生儿中先天肢体畸形(congenital limb malformations,CLM)的病种分布及流行病学特征。 方法 整群抽样选取衡阳市南岳区、珠晖区、常宁市和衡山县4个区县,调查2008~2010年间新生儿中CLM的发生情况。根据伴发畸形的性质将CLM病例分为单发和综合征两类,分别计算其发生率,分析病种构成及患儿临床特征。 结果 52 307例新生儿中检出170例CLM,总发生率为32.50/104,单发畸形发生率为28.29/104,综合征为4.21/104;其中多指(趾)、马蹄内翻足、并指(趾)和肢体短缩的发生率分别为13.00/104、9.56/104、5.16/104、3.63/104。CLM总发生率及病种发生率无城乡、性别和孕妇年龄别差异。多指(趾)、并指(趾)、肢体短缩三种畸形发生在上肢、下肢、上下肢的比例分别为68.14%、14.16%、17.70%。综合征CLM患儿中早产、低出生体质量、死胎死产及新生儿期死亡多于单发CLM患儿。 结论 衡阳市先天肢体畸形发生率和病死率高,需采取有效措施预防疾病,提高患儿的生存质量。

     

    Abstract: Objective To describe the epidemiological characteristics of selected congenital limb malformations (CLM) in newborns of Hengyang. Methods During the period of 2008-2010, cluster sampling survey was adopted to investigate the congenital limb malformations of neonates born to women resident in Hengyang, including Nanyue District, Zhuhui District, Changning City and Hengshan County. Each newborn was examined for the screening of CLM after birth. Limb malformations were grouped into the isolated (ILM) and the syndromic (SLM) form, depending on associated malformations of the affected. Prevalence rates, CLM spectrum and clinical manifestations were analyzed. Results A total of 170 CLM cases were identified among 52 307 newborns during the study period, resulting overall rate of 32.50/104. The rates for isolated and syndromic CLM were 28.29 and 4.21 per 10 000 births respectively. The rates for polydactyly, congenital talipes equinovarus, syndactyly and limb reduction defects were 13.00/104, 9.56/104, 5.16/104 and 3.63/104, respectively. No significant difference in rates of overall CLM or specified CLM was observed across urban-rural, gender and maternal age groups. Of the cases affected by polydactyly, syndactyly and limb reduction defects, malformation involved upper limbs, lower limbs and the both accounted for 68.14%, 14.16% and 17.70%. Preterm birth, low birth-weight, still birth and neonatal death were observed more frequently in syndromic cases than in isolated patients. Conclusion The high CLM prevalence rate and fatality rate in Hengyang suggest that effective measures should be taken to prevent malformations and to improve survival of the affected.

     

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