Duvie S O
Trop Geogr Med. 1984 Dec;36(4):371-3.
A prospective study was carried out to determine the incidence of contralateral patent processus vaginalis in unilateral inguinal hernia in Nigerian children. Over a 5-year period (1977-1981), all children under 8 years of age with unilateral inguinal hernia underwent planned bilateral groin exploration. The highest frequency was recorded in the under 1 year age group (39%); there was a steady decline with age: at 2 years 22% and beyond 2 years of age it levelled out to 17%. Beyond the age of 5 years, contralateral groin exploration was negative. The frequency in Nigerian children is lower than in their Caucasian counterparts; this may be due to genetic and/or environmental factors.
开展了一项前瞻性研究，以确定尼日利亚儿童单侧腹股沟疝对侧鞘突未闭的发生率。在1977年至1981年的5年期间，所有8岁以下单侧腹股沟疝患儿均接受了计划性双侧腹股沟探查。1岁以下年龄组记录的频率最高（39%）；随年龄增长而稳步下降：2岁时为22%，2岁以上趋于平稳，为17%。5岁以上儿童对侧腹股沟探查结果为阴性。尼日利亚儿童的这一频率低于白种儿童；这可能是由于遗传和/或环境因素。
