Ferreira Mônica de Sá, de Almeida Katia, Atherino Ciríaco Cristóvão Tavares
Universidade Veiga de Almeida.
Braz J Otorhinolaryngol. 2007 Mar-Apr;73(2):231-8. doi: 10.1016/s1808-8694(15)31071-5.
Relatively poorer audibility threshold for high frequency was found in children with medical history of multiples episodes of secretory otitis media.
to characterize the audibility threshold for high frequencies in normal-hearing children with medical history of multiples episodes of bilateral secretory otitis media.
a sample of 31 children, from both genders, was divided in two groups: 14 subjects who had not more than 3 episodes of bilateral secretory otitis media (Group 1) and 17 subjects that experienced at least 4 episodes of this condition (Group 2). Pure-tone air conduction audiometry was tested at frequencies 9,000 to 18,000 Hz.
transversal prospective.
there was no difference between audibility thresholds comparing right and left ears of subjects of both Group 1 and Group 2 in all tested frequencies. However, there was difference between audibility thresholds between subjects of Group 2 compared to Group 1 in all tested frequencies.
1- There was an increase in audibility thresholds with the increase in frequency . 2- High frequency audiometry separates subjects with history of at least four episodes of secretory otitis media, suggesting that these episodes are sufficient to promote statistically significant difference in high frequency thresholds.
在有多次分泌性中耳炎病史的儿童中发现高频听力阈值相对较差。
描述有双侧分泌性中耳炎多次发作病史的听力正常儿童的高频听力阈值特征。
选取31名儿童样本，男女均有，分为两组：14名双侧分泌性中耳炎发作不超过3次的受试者（第1组）和17名经历过至少4次这种情况的受试者（第2组）。在9000至18000赫兹频率下进行纯音气导听力测定。
横向前瞻性研究。
第1组和第2组受试者的双耳在所有测试频率下的听力阈值比较无差异。然而，在所有测试频率下，第2组受试者与第1组受试者之间的听力阈值存在差异。
1 - 听力阈值随频率增加而升高。2 - 高频听力测定可区分有至少四次分泌性中耳炎发作病史的受试者，表明这些发作足以导致高频阈值出现统计学上的显著差异。
