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Biomedical subjects

C W Gross

Publications and source records attributed to C W Gross.

At least 55 records · Page 3Linked to original sources
PubMed1979

Long-term follow-up of tympanic neurectomy for sialorrhea.

Thirty-one patients who had undergone a bilateral tympanic neurectomy (sectioning of both Jacobson's nerve and the chorda tympani) for sialorrhea are evaluated after two years (ranging from 24--45 months). Drooling control improved in 74%. There was a significant difference of improvement in the group where a diligent search was made to sever all branches of the tympanic plexus. A 50% improvement was attained in two failures of a tympanic neurectomy who underwent transposition of Stenson's ducts into the tonsillar fossa.

Ear, Middle↗
PubMed1978

Oxygen concentrations received from commonly used delivery systems.

The mean inhaled oxygen concentrations received from five devices commonly used for delivering supplemental oxygen to spontaneously breathing patients were determined. The ideal technic for the determination would require direct measurement of mean alveolar oxygen concentration. Since this is not feasible, we plotted arterial oxygen tensions against known inhaled oxygen concentrations in volunteers. The fitted equations were then used to determine mean inhaled oxygen concentrations received by the volunteers while breathing from each device. The volunteers received accurately determined oxygen concentrations from those devices employing the Venturi principle at settings of 40% or less. The concentrations received did not coincide with the settings with the Venturi devices above 40%, and highly variable with the non-Venturi devices. Variability in the concentrations received was related to the fact that the volunteers' peak inspiratory flow rates exceeded total gas flows delivered by the devices.

Humans↗
PubMed1978

Blastomycosis of fronto-ethmoid complex.

Blastomycosis in children is relatively infrequent. Further, osteomyelitis of the frontal bone, which prior to the antibiotic era occurred more frequently and was mostly due to pyogenic cocci, is rare today. We described a case of frontal osteomyelitis in a child due to blastomycosis which occurred in the absence of frontal sinuses. To our knowledge this rare combination of factors has not previously been reported.

Blastomycosis↗
PubMed1977

Proplast in the middle ear and oval window of cats.

Poly(tetrafluoroethylene) carbon fiber implant material (Proplast), an all-plastic material, was evaluated for use in otologic surgery. Response to the implant was studied in the middle ear and vestibule of 14 cats by placing the Proplast in the oval window after stapedectomy. After a one year follow-up, it appears that Proplast was tolerated well, causing no inflammatory reaction in either the vestibule or cochlea, or in the middle ear cavity. Fibrous tissue ingrowth was found throughout the implant, and a fibrous tissue membrane covered both the vestibular and the tympanic surfaces of the Proplast. Being well tolerated by both middle ear and inner ear tissues, this porous, all-plastic material offers several otologic applications.

Animals↗
PubMed1977

Transtympanic neurectomy: a solution to drooling problems.

Thirty patients underwent transtympanic neurectomy because of severe drooling problems. Most of the group had cerebral palsy and/or mental retardation and the remainder had suffered brain damage. Their ages ranged from four to 56 years. There was improvement in drooling in 87 per cent of the group 14 months post-operatively, and there was no serious, irreversible complications. In this series of patients, transtympanic neurectomy has proved to be a safe and effective procedure for the control of drooling.

Adolescent↗
PubMed1977

Mucocutaneous lymph node syndrome: a new clinical entity.

A six-year-old black male presented to the Otolaryngology service with fever, sore throat and an inflammatory mass in the left neck. Forty-eight hours later he developed the full blown clinical picture of mucocutaneous lymph node syndrome (MLNS). This is a relatively new clinical entity, well known in Japan, but only recently described in the English literature. The following case report and discussion will serve to alert the otolaryngologist to this disease.

Child↗
PubMed1976

Investigation of the mesotympanum's reaction to silastic and gelatin film.

The section of the cat's mesotympanum, denuded of mucosa, to Silastic and gelatin film was studied and compared with the contralateral control ear, which was also denuded of mucosa. The ears were studied by horizontal pathological sections taken one, two, four, and six months post-lympanotomy and insertion of either gelatin film or Silastic. The Silastic, gelatin film and control ears were compared for inflammatory reaction, amount of fibrosis, and the quality and quantity of mucosal regeneration. The inflammatory reaction was increased in the ears with Silastic compared with their corresponding control ears or to the ears with gelatin film. The amount of fibrosis and the quality and quantity of mucosal regeneration was essentially the same in the Silastic, gelatin film, and control ears. This study shows that both substances are well tolerated in the middle ear and that neither substance stimulated or inhibited the regrowth of mucosa or fibrous tissue when compared with the control.

Animals↗