[Clinical analysis of bilateral same-day myringoplasty for 22 cases with bilateral tympanic membrane perforation].

Objective: To investigate the feasibility of bilateral same-day myringoplasty and the indications for myringoplasty for patients with bilateral tympanic membrane perforation, and to summarize relevant experience.

Methods: Twenty-two patients underwent bilateral same-day underlay myringoplasty, and all cases were consistent with the indications for myringoplasty. The preoperative hearing and postoperative hearing at three months were compared, and the postoperative symptoms and complications were observed.

[Functional analysis of the vertical semicircular canal using vertical plane swing test and study of its normal values].

Objective: The purpose of this study was to set up a method to analyze the vertical semicircular canal function and study the normal values of the vertical semicircular canal function using the vertical plane swing test.

Methods: A prospective analysis of 100 normal persons (aged from 18 to 59 years), who were treated by using the vertical plane swing test with the newly developed automatic vestibular function diagnosis and therapy system (SRM-IV). These persons were rotated 180° at a sinusoidal speed (acceleration 45°/s, maximum speed 90°/s) in the vertical semicircular canal plane.

[Operation of hypopharyngeal carcinoma with restrained vocal cord motility].

Objective: To explore the feasibility of laryngeal function preservation in surgical treatment of hypopharyngeal carcinoma with restrained vocal cord motility.

Methods: Twenty-six cases of hypopharyngeal carcinoma treated with conservative hypopharyngectomy were retrospectively analyzed. Partial resection of pyriform sinus and partial laryngectomy were performed.

[Molecular etiology of non-syndromic hearing impairment in a Chinese family].

Objective: To investigate the molecular etiology of non-syndromic hearing impairment in two patients in a maternal inherited deafness Chinese family.

Methods: Peripheral blood specimens were collected and DNA templates extracted. The complete mitochondrial genomes and GJB2 gene were sequenced in an ABI 3100 Avant sequencer.

[Applied study of voice function rehabilitation by mucosa tube performed in operation of late laryngocarcinoma.].

Objective: To study the voice function rehabilitation by mucosa tube performed in operation of late laryngocarcinoma and to improve the survival quality of patients with late laryngocarcinoma.

Methods: Forty-six patients were treated between Oct. 1991 and May 2006, including 41 males and 5 females.

[Analysis and application of the images from the segmenting CT in the space of nasal endoscope].

Objective: To analyze the images from the segmenting CT in the space of nasal endoscope and to observe the benefits in applying the method in endoscopic sinus surgery.

Methods: Five patients with inverted papilloma and ten patients with chronic rhinosinusitis were enrolled. The images from the coronal CT were put in the ideal model of the nasal cavity, which had been designed by SketchUp software package, and the space of the model in the 0 degree rod-lens telescope was simulated and observed according to definite elevation angle between the endoscope and bottom of nasal cavity and the distance of the endoscope entering the nasal cavity.

[Three-axis otoconia maneuver treatment in benign paroxysmal positional vertigo].

Objective: To evaluate three-axis otoconia maneuver (TOM) for benign paroxysmal positional vertigo (BPPV).

Methods: The data from twenty BPPV patients who received three-axis otoconia maneuver treatment and 20 BPPV patients who received canalith repositioning (CRP) maneuver treatment were analyzed retrospectively.

Results: There were 17 patients received 1 TOM session and 3 patients received 2 TOM sessions while 16 patients received 1 CRP session and 4 patients received 2 CRP sessions.

[Effect of glutamate on distortion product otoacoustic emission and auditory brainstem response in guinea pigs].

Objective: To investigate the changes of the potentials and structure of the guinea pig cochlear during whole cochlear perfusion with glutamate.

Methods: Cochlear microphonics (CM), compound action potential (CAP), distortion product otoacoustic emission (DPOAE) and auditory brainstem response (ABR) were measured to indicate the cochlear functional properties during whole cochlear perfusion. The morphology of the cochlear was monitored by transmission electron microscopy.