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Biomedical subjects

W H Powers

Publications and source records attributed to W H Powers.

14 recordsLinked to original sources
PubMed1989

Otocephaly-midline malformation association.

Otocephaly ("agnathia") is a developmental field complex with structural defects limited to the craniofacial region. Previously, two infants with otocephaly, situs inversus totalis, renal defects, and vertebral and rib abnormalities were reported by Pauli et al. [Teratology 23:85-93, 1981]. We describe a similarly affected infant male, supporting the existence of this midline malformation association. A generalized disturbance in cell migration from the primitive streak may be its pathogenesis. A search for additional patients among cases of otocephaly may establish its prevalence, patterns of associated anomalies, and cause.

Facial Bones↗
PubMed1980

An evaluation of revision stapes surgery.

The expected success rate in primary stapedectomy is well documented in recent literature, but few reports have commented on the difficulties or the expected results in revision stapes surgery. Reports have dealt with different techniques, but the surgeon and the patients should be aware of the problems and risks involved in revision stapedectomy. The records of 35 patients who had undergone revision stapedectomy were analyzed to determine the following: 1. cause of failure, 2. how to avoid these difficulties, 3. hearing results, and 4. possible identifying factors which might pinpoint those patients with a high risk for sensorineural hearing loss. A review of these cases demonstrates that the results of revision stapedectomy are different than those for primary stapedectomy.

Hearing Loss, Sensorineural↗
PubMed1980

Nonotogenic otalgia: diagnosis and treatment.

Nonotogenic otalgia may be due to referred or reflex pain, neuralgia, or to a psychogenic problem. Referred pain is due to irritative lesions involving the fifth, ninth, or tenth cranial nerves and spinal nerves C2 and C3. If pathologic problems in the area supplied by these nerves have been ruled out, the neuralgia should be considered in the differential diagnosis. Psychogenic factors must be identified and treated before any type of surgical therapy is recommended.

Ear↗
PubMed1975

The role of allergy in fluctuating hearing loss.

A method for the selection of patients with fluctuating hearing loss and Meniere's disease for allergic evaluation is presented. An approach to the diagnosis and treatment of these problems is reviewed. Seventy-two patients with Meniere's disease who met the criteria of the American Academy Subcommittee on Equilibrium and Its Measurements were evaluated. Thirty-two per cent of the 62 patients receiving allergy therapy or allergy and metabolic therapy responded to treatment. Half required a combination of metabolic and allergy management, whereas the other half responded to allergy therapy alone.

Food Hypersensitivity↗