中华耳科学杂志2016，Vol.14Issue(3)：334-338,5.DOI:10.3969/j.issn.1672-2922.2016.03.004
鼓膜修补术后鼓膜振动激光多普勒测振研究
Laser Doppler Vibrometry Study of Tympanic Membrane Motion after Myringoplasty with Air-Bone Gap of Unknown Origin
摘要
Abstract
Objective To study the motion characteristics of tympanic membrane (TM) after myringoplasty with air-bone gap of unknown origin using laser Doppler vibrometry. Methods Between January 2013 and January 2015, 11 pa-tients (11 ears), who presented with conductive hearing loss with no obvious clinical reasons after undergoing myringoplasy, were enrolled in this study. Based on the air-bone conduction gap (ABG) at one year after myringoplasty, the patients were divided into Group A (ABG≤20 dB, 6 ears) and Group B (ABG>20 dB, 5 ears). Thirty young people with normal hearing and normal TM served as the control. Magnitudes of TM vibration at the umbo were measured using laser Doppler vibrome-try (LDV). The relationship between TM vibration magnitudes and ABG were analyzed. Results TM vibration magnitude curves in patients in Group A were similar to the normal control subjects, except for Patients No. 6 and 2. TM Vibration magnitude in Patient 6 was significantly lower than in normal controls, especially at 1000 Hz. Otoscopy showed thickened TM with calcification patches. Audiometry showed essentially no change in ABG before and after the myringoplasty sur-gery. TM vibration magnitude was higher than normal controls in Patient 2, peaking at 1000 Hz. TM was intact with signs of atrophy. ABG was reduced following the myringoplasty surgery. TM vibration magnitude was lower than normal controls in most patients in Group B, except for Patient No. 5, whose TM vibration magnitude was slightly greater than normal con-trols. TM was thin in Patient 5 and ABG was reduced after the myringoplasty surgery. Conclusion After myringoplasty, TM vibration magnitude seems to be correlated with post-operative ABG. TM vibration parallel to normal indicates the probabil-ity of improved ABG.关键词
振动/鼓膜/鼓室成形/气骨导差Key words
vibration/tympanic membrane/tympanoplasty/air-bone conduction gap分类
医药卫生引用本文复制引用
张颖,王杰,李永新..鼓膜修补术后鼓膜振动激光多普勒测振研究[J].中华耳科学杂志,2016,14(3):334-338,5.基金项目
Supported by:The Foundation for Clinical Distinctive Application, Capital of China (Z161100000516144) （Z161100000516144）
The priming scientific re-search foundation for the senior researcher in Beijing Tongren Hospital, Capital Medical University (2015-YJJ-GGL-015) （2015-YJJ-GGL-015）
The Beijing Nat-ural Science Foundation (7142040) （7142040）
基金项目1首都临床特色应用研究项目（Z161100000516144）；2首都医科大学附属北京同仁院研骨干培育基金资助课题（2015-YJJ-GGL-015）；3北京市自然科学基金项目（7142040）。 （）
