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Abstract
Objective: To investigate the diagnostic value of distortion product otoacoustic emission (DPOAE) together with tympanometry in assessing otitis media with effusion in children.
Methods: Three hundred and thirty-nine patients, who were diagnosed with obstructive sleep apnea–hypopnea syndrome (OSAHS) and prepared to undergo adenotonsillectomy and had a unilateral or bilateral type ‘B’ or ‘C’ tympanogram were enrolled in this study. Patients were divided into the following four groups: Group 1, type ‘B’ tympanogram with positive DPOAE; Group 2, type ‘B’ tympanogram with negative DPOAE; Group 3, type ‘C’ tympanogram with positive DPOAE and Group 4, type ‘C’ tympanogram with negative DPOAE.
Results: Tympanometry showed a type ‘B’ pattern in 467 ears and type ‘C’ pattern in 163 ears. Among 163 ears with type ‘C’ tympanogram, negative DPOAE results were seen in 96 ears. Group 4 (56/96) had a significant high rate of middle ear effusion than Group 3 (14/67) (p < .05). In patients with a type ‘C’ tympanogram, those with a low compliance value (∼0.25 ml), concurrent chronic tonsillitis and large tonsils are likely to have middle ear effusion.
Conclusions: DPOAE could be a great help in screening for middle ear effusion in patients with a type ‘C’ tympanogram.
Chinese abstract
目的：探讨失真产物耳声发射（DPOAE）结合鼓室测量在评估小儿积液中耳炎上的诊断价值。
方法：本研究纳入了339名患者, 他们被诊断患有阻塞性睡眠呼吸暂停低通气综合征（OSAHS）, 准备接受腺样体扁桃体切除术, 并且具有单侧或双侧“B”或“C”型鼓室图。患者分为以下四组：组1, DPOAE呈阳性, “B”型鼓室图；组2, DPOAE呈阴性, “B”型鼓室图；组3, DPOAE呈阳性, “C”型鼓室图；组4, DPOAE呈阴性, “C”型鼓室图。
结果：鼓室测量显示467只耳为“B”型, 163只耳为“C”型。在“C”型鼓室图的163只耳中, 有96只耳观察到阴性DPOAE的结果。第4组（56/96）中耳积液的发生率高于第3组（14/67）（p <.05）。对于“C”型鼓室图患者, 顺应性低（〜0.25 ml）, 且并发慢性扁桃体炎和大扁桃体的患者可能有中耳积液。
结论：DPOAE对于筛查“C”鼓室图患者是否有中耳积液很有用。
Disclosure statement
No potential conflict of interest was reported by the authors.