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Biomedical subjects

G W Hicks

Publications and source records attributed to G W Hicks.

7 recordsLinked to original sources
PubMed1991

Treatment of sensorineural hearing loss.

Of the 25 million people who are hearing impaired, 85% suffer from sensorineural hearing loss (SNL). In the past decade, the identification and treatment of SNL have evolved from futile efforts to active intervention. This paper identifies nine forms of inner ear disorders causing SNL for which medical/surgical treatment is available. Physicians must realize that, with appropriate diagnosis and treatment, hearing nerve loss can have a satisfactory outcome.

Autoimmune Diseases↗
PubMed1979

Tympanoplasty using formaldehyde formed fascia grafts.

The closure of total perforations of the tympanic membrane has always been more difficult than lesser eardrum defects. Postoperative anterior sulcus blunting and graft lateralization occur with greater frequency in this situation and thus compromise results. In 1975, Rodney Perkins developed and described a technique for the closure of such total perforations which involved the use of formaldehyde treated temporalis muscle fascia, shaped by means of a metal mold into the configuration of a normal tympanic membrane and medial end of the bony external ear canal. This formaldehyde formed fascia (FFF) graft impressed us with its adaptability and logic. This article is a review of 139 cases involving the use of formaldehyde treated grafts not only for closure of total performations, but also for closure of total performations with concomitant middle ear ossicular reconstruction. The postoperative nonperforation rate in this series is 96.4%; blunting and/or graft lateralization was absent in 94.2% of cases. Closures of the air-bone gap to within 20 db occurred in 74% of cases with an overall gain in hearing for all cases of 84%. We believe that formaldehyde formed fascia grafts are an effective tool for the closure of total tympanic membrane perforations with or without concomitant ossicular chain reconstruction.

Adolescent↗
PubMed1979

Panel discussion: glomus jugulare tumors of the temporal bone. Radiological appearance of glomus tumors.

Depending upon the stage of pathogenesis, some glomus tumors demonstrate characteristic radiographic findings which permit a presumptive diagnosis of this type of tumor. Three factors are helpful in interpreting multidirectional tomography of the temporal bone when a glomus tumor is suspected. The tumor shows a predilection for bony erosion of the carotid crest and hypotympanum. It tends to destroy bone in its path by small lobulated invasions producing a fairly well demarcated border of crescentic shaped translucencies. In contradistinction to other tumors and infections, glomus tumors tend to spare the lateral wall of the attic and the ossicular chain even when the tumor if fairly well advanced in size.

Glomus Jugulare Tumor↗
PubMed1978

Use of plastipore for ossicular chain reconstruction: an evaluation.

With the exception of stapes prostheses, previous use of implantable alloplastic materials in reconstructing the sound conducting mechanism in middle ear surgery has been uniformly unsuccessful. A new material composed of ultra-high molecular weight polyethylene has been developed as a replacement for middle ear ossicles. This implant, called the Plastipore total ossicular replacement prosthesis (TORP), and the Plastipore drum to the stapes prosthesis were inserted in 87 patients, all of whom had a long history of extensive middle ear disease and/or surgery. One TORP patient was lost to follow-up. The overall average hearing gain was 14.8 db. The overall follow-up was 12.4 months with a range of from 3 to 25 months. Eleven of the 15 patients receiving the drum-to-stapes prosthesis had hearing gain; 55 of 71 patients receiving the TORP had hearing gain. Eight prostheses were extruded. Nine patients had no improvement in hearing. Eight patients had subsequent decrease in hearing after initial gains. All ears are now dry and aerated. Early evaluation appears to demonstrate that the Plastipore prosthesis shows promise for use in difficult reconstructive middle ear problems.

Ear Diseases↗
PubMedDate not supplied

The eustachian tube prosthesis revisited.

Preliminary results with an eustachian tube prosthesis have been reported. This paper updates our experience with the prosthesis. Our series is now 95 patients with follow-up of 2 to 32 months (average of 14 months). The success rate in obtaining a healed aerated middle ear is 75% (71). The eustachian tube prosthesis continues to give encouraging results in problem tympanoplasty cases.

Constriction, Pathologic↗