Ghorbani Farhad, Danesteh Hossein, Khoramnia Afshin, Tavanafar Saeid
Department of Oral and Maxillofacial Surgery, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
Maxillofac Plast Reconstr Surg. 2021 Mar 25;43(1):11. doi: 10.1186/s40902-021-00296-5.
Orthognathic surgery is widely used in treating functional and skeletal problems. Any surgical procedure could cause side effects.
This study aimed to evaluate the potential changes in orthognathic surgery on the hearing function of patients.
Thirty-one orthognathic surgery candidates were recruited in this study. Patients underwent either single or double jaw surgery. Pure tone audiometry (PTA), tympanometry, and Eustachian Tube Dysfunction Test (ETFT) were performed postoperatively at 24 h, 6 weeks, and 6 months after surgery. Patients were tabulated based on the type of maxilla and mandibular surgical movements (vertical and horizontal).
PTA evaluation, based on horizontal or vertical movements, did not show significant differences, although vertical movements resulted in less change in hearing threshold. In other words, no significant changes occurred in patients' hearing threshold after surgery. No significant difference was also observed between horizontal and vertical movements in the results of tympanometry. Negative changes were found in the results of ETFT in vertical movements, which returned to pre-surgery values in the final test.
The risk of minor changes in hearing function is probable during the first week after orthognathic surgery, but these negative changes will either totally fade or remain negligible. Patients gave informed consent preoperatively, and reassurance postoperatively is prudent.
正颌外科手术广泛应用于治疗功能和骨骼问题。任何外科手术都可能引起副作用。
本研究旨在评估正颌外科手术对患者听力功能的潜在影响。
本研究招募了31名正颌外科手术候选患者。患者接受单颌或双颌手术。术后24小时、6周和6个月进行纯音听力测定（PTA）、鼓室图和咽鼓管功能障碍测试（ETFT）。根据上颌和下颌手术移动类型（垂直和水平）对患者进行列表分析。
基于水平或垂直移动的PTA评估未显示出显著差异，尽管垂直移动导致听力阈值变化较小。换句话说，术后患者的听力阈值没有显著变化。鼓室图结果在水平和垂直移动之间也未观察到显著差异。垂直移动的ETFT结果出现了负面变化，但在最终测试中恢复到术前值。
正颌外科手术后第一周听力功能可能会有轻微变化的风险，但这些负面变化要么会完全消失，要么仍可忽略不计。患者术前已签署知情同意书，术后给予安慰是明智的。
