Subject(s)
Cholesteatoma, Middle Ear/surgery , Otitis Media, Suppurative/surgery , Tympanoplasty/methods , Adult , Aged , Bone Conduction , Cholesteatoma, Middle Ear/physiopathology , Chronic Disease , Female , Follow-Up Studies , Humans , Male , Middle Aged , Otitis Media, Suppurative/physiopathology , Time FactorsSubject(s)
Cranial Nerve Neoplasms , Facial Nerve Diseases , Neurofibroma , Adult , Cranial Nerve Neoplasms/diagnosis , Cranial Nerve Neoplasms/surgery , Facial Nerve Diseases/diagnosis , Facial Nerve Diseases/surgery , Humans , Magnetic Resonance Imaging , Male , Neurofibroma/diagnosis , Neurofibroma/surgery , Temporal Bone/diagnostic imaging , Temporal Bone/pathology , Tomography, X-Ray ComputedABSTRACT
We linked several audiometers to a personal computer to implement a standard pure-tone audiometric database system using a local area network (LAN). The efficiency of data entry and retrieval was increased by taking advantage of a relational database. The following five programs were developed: automatic incorporation of hearing test data program, audiogram retrieval and display program, patient information incorporation program, data transmission program through LAN, and evaluation of results of tympanoplasty. Data obtained over ten years or more can be rapidly stored and retrieved in this system, making it easier to evaluate the patient's hearing after tympanoplasty.
Subject(s)
Audiometry, Pure-Tone , Databases, Factual , Local Area Networks , Auditory Threshold/physiology , Bone Conduction/physiology , Data Display , Database Management Systems , Hearing/physiology , Humans , Information Storage and Retrieval , Medical Records Systems, Computerized , Microcomputers , Software , TympanoplastyABSTRACT
The management and storage of pure tone audiometry data creates a major problem for otolaryngological clinics. We have devised a new computerized database system to overcome this problem. The hardware involved includes multiple audiometers and computers interfaced with a glassfiber local area network (Pi-Net). The software used is database 3 plus, a popular database language and utility software package. Programs were written for data entry, data transfer, reference, entry of patient ID, and evaluation of tympanoplasty. The following benefits of the system are noted. 1) Data entry is possible at every terminal (audiometer and computer). 2) Storage capacity is sufficient for more than 10 years of operation. 3) All data can be retrieved rapidly at any terminal. Evaluations of pre- and post-tympanoplasty hearing loss are facilitated by this system. This system is very effective for follow up of hearing disorders.
Subject(s)
Audiometry, Pure-Tone , Databases, Bibliographic , Local Area Networks , Audiometry, Pure-Tone/instrumentation , Humans , SoftwareABSTRACT
The external aperture width of the vestibular aqueduct was measured in living subjects of various ages, with normal and diseased ears. Measurements were made from 3-dimensional reconstruction of CT images, and the developmental process was studied. The following results were obtained. i) In Menière's disease the external aperture was hypoplastic and its width significantly smaller than that in normal individuals and those with chronic otitis media, including children. ii) There were no significant differences between normal ears and ears with chronic otitis media in either adults or children. The development of external aperture was completed in childhood. iii) In Menière's disease, hypoplasia evidently begins before childhood, which suggests that congenital factors are involved in the pathology of this disease.
Subject(s)
Meniere Disease/pathology , Vestibular Aqueduct/pathology , Adolescent , Adult , Age Factors , Aged , Child , Chronic Disease , Female , Humans , Male , Middle Aged , Otitis Media/pathology , Reference Values , Tomography, X-Ray ComputedABSTRACT
The width of the external aperture of the vestibular aqueduct was measured in patients with Meniere's disease using three-dimensional images. The width of the aperture on the affected side was significantly smaller compared with that in normal ears or ears with chronic otitis media. Also, the width of the aperture on the opposite (healthy) side in unilateral Meniere's disease was significantly smaller than in these two other groups. These findings suggest that the aqueduct is incompletely developed in patients with Meniere's disease and that this may be related to the pathogenesis of this condition. Also, in unilateral Meniere's disease the opposite ear runs a high risk of eventually developing the disease.
Subject(s)
Meniere Disease/pathology , Vestibular Aqueduct/pathology , Adolescent , Adult , Aged , Anthropometry , Child , Chronic Disease , Humans , Image Processing, Computer-Assisted/methods , Meniere Disease/diagnostic imaging , Meniere Disease/etiology , Middle Aged , Reference Values , Tomography, X-Ray Computed/methods , Vestibular Aqueduct/abnormalities , Vestibular Aqueduct/diagnostic imagingABSTRACT
Observation of the external aperture of the vestibular aqueduct was hitherto possible only in cadavers or dry temporal bones; however, by applying three-dimensional surface reconstruction imaging, it is now possible to observe solid-looking images of this structure in living humans. When the width of the external aperture of the vestibular aqueduct was measured in 58 people, it was found to be significantly narrower in the affected ears of patients with Meniere's disease than in normal ears.
Subject(s)
Image Processing, Computer-Assisted , Tomography, X-Ray Computed/methods , Vestibular Aqueduct/anatomy & histology , Chronic Disease , Humans , Image Processing, Computer-Assisted/methods , Meniere Disease/diagnostic imaging , Meniere Disease/pathology , Otitis Media/diagnostic imaging , Otitis Media/pathology , Temporal Bone/diagnostic imaging , Temporal Bone/pathology , Vestibular Aqueduct/diagnostic imagingABSTRACT
We report the case of a 52-year-old female with middle-ear paraganglioma masquerading as a traumatic facial palsy, and describe the diagnostic steps and surgical treatment by the tympanomastoid approach.
Subject(s)
Ear Neoplasms/diagnosis , Ear, Middle , Facial Paralysis/etiology , Paraganglioma/diagnosis , Audiometry , Cranial Nerve Neoplasms/pathology , Craniocerebral Trauma/complications , Diagnostic Errors , Ear Neoplasms/complications , Ear Neoplasms/pathology , Facial Nerve Diseases/pathology , Female , Humans , Middle Aged , Neoplasm Invasiveness , Paraganglioma/complications , Paraganglioma/pathology , Tomography, X-Ray ComputedABSTRACT
A 44-year-old female with adenoma of the middle ear was reported. Her chief complaint was hearing loss in the right ear. A white mass inside the right external auditory canal was observed. Audiometry revealed a combined deafness with the average hearing of 38.3 dB for the speech frequencies. The study by high resolution X-ray CT revealed a density area as like as a soft mass in the tympanic cavity. A tumor existing mainly in the hypotympanum was surgically removed and modified type III tympanoplasty by interposing the malleus head as an autograft as a columella was done. Postoperative course was good and the average hearing improved slightly to 30 dB. Histopathological study with stains of HE, PAS, mucicarmin, colloid iron, NSE and S-100 protein showed adenoma of the middle ear.
Subject(s)
Adenoma/pathology , Ear Neoplasms/pathology , Ear, Middle , Adenoma/surgery , Adult , Ear Neoplasms/surgery , Female , Humans , TympanoplastyABSTRACT
Recently, we had opportunity to use an oxygen saturation pulse oximeter (minolta pulsox-7) which is a compact, light-weight device and allows continuous, percutaneous easy determination of arterial blood oxygen saturation. We obtained the following results from clinical application of this device in the field of otorhinolaryngology. 1. There was a high coefficient of correlation (0.899) between the values of oxygen saturation determined with a Minolta Pulsox-7 and an arterial blood gas analyzer. 2. This instrument was simple to handle and was clinically applicable, and seems to be highly useful for a) timing of tracheostomy, b) objective evaluation of dyspnea, c) monitor of nasal surgery under local anesthesia.
