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At least 1,693 records · Page 94Linked to original sources
PubMed1998

[Plastic reconstruction of mastoid cavity in patients with chronic suppurative otitis media].

The authors describe a mastoidoplasty modification--repair of the retrotympanal cavity with a large osteomusculoperiosteal graft on the lower feeding pedicle. This intervention was conducted in 25 patients with otitis media purulenta chronica with cholesteatoma and in 6 patients with incomplete epidermization of the cavity after radical operation on the ear. Prior to and following the operation turundas containing mixed salts of acid ethers of cellulose, bound calcium ions and antibiotics were inserted into the external acoustic meatus and postoperative cavity. The treatment duration was shorter. The effect was achieved in 27 patients.

Adolescent↗
PubMed1996

[Cholesterol granulomatous tympano-mastoiditis].

In order to investigate the early diagnosis and proper management of the cholesterol granulomatous tympanomastoiditis, 6 cases verified by pathology and surgery were reviewed. All of these cases had a longterm or a historical otitis media. Among them, different clinical features were presented, such as chronic serous otitis media, idiopathic blue eardrum, or as a primary occupying lesion of the middle ear. Depend on the extension of the disease, surgical procedure varied in the 6 cases, including exploratory tympanotomy, ventilation tube insertion, antroatticotomy, simple mastoidectomy, and radical mastoidectomy. Postoperative follow up for at least one--7 year showed no recurrence, and hearing improvement in 5 cases. The clinical basis of the diagnosis and management of this disease were also discussed.

Adolescent↗
PubMed1982

Bacteriological studies after obliterative mastoid operations.

This study evaluates the post-operative bacteriology and the clinical state of postoperatively infected ears which were operated on using obliterative techniques and relates these bacteriological findings with the disease present. Out of the 85 ears with post-operative infection, the discharge was mucous in nine ears, mucopurulent in 18 ears, and seropurulent in 34 ears. Twenty-four ears were moist. Epitympanal or antral cholesteatoma was noticed in seven ears and meso- or hypotympanal cholesteatoma in 12 ears. The post-operative Valsalva-test was positive in 61 ears and negative in 24 ears. The types of bacteria did not significantly depend on the quality of the post-operative discharge, existence of post-operative cholesteatoma, or clinical function of the Eustachian tube (estimated by the Valsalva test). This study indicates that the bacteriology of the post-operatively moist or discharging ear does not significantly depend of the clinical state of the ear, nor can it be predicted on the basis of the clinical picture of the ear. A bacteriological examination of the ear seems to be the only way to control chemotherapy properly.

Adolescent↗
PubMedDate not supplied

Virtual image of the incus from a saline lens: an aid to safe dissection of the mastoid antrum.

Dissection of the antrum requires judicious visualization of the tegmen, horizontal canal, incus, and facial nerve. Inadvertent contact with the incus by the power drill may cause significant acoustic trauma. An effective "early warning device" accurately predicting exposure of the incus may be constructed with the saline irrigation fluid. The formation of the meniscus at the antrum permits visualization of the image of the incus around the corner of the bony canal wall overhang. A thin-lens model of this phenomenon has been created for first-order analysis of the optics, and it provides useful criteria for using this image. Image minification, displacement, and distortion were analyzed. A more complex model was then created to assess the impact of changing meniscus shape. The latter helped in understanding an added "swinging-door effect" noted as the meniscus was altered. The model predicted accurately the phenomena as observed in the temporal bone preparation. Illustrative examples of the optics and photographic demonstrations of the phenomena are presented.

Dissection↗