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Biomedical subjects

D R McNeal

Publications and source records attributed to D R McNeal.

49 records · Page 3Linked to original sources
PubMedDate not supplied

Experience with implanted electrodes.

Implant units, manufactured by Medtronic, Inc., have been implanted in 31 patients for treatment of drop-foot. The principal problem encountered in this series was inflammatory reaction. This was observed in seven patients, and was serious enough in five to require removal of the implant. On the positive side, there have been no failures of the implanted equipment for periods of up to 7.3 years, although there is currently a question on one patient. There has also been no documented damage to the nerve from chronic stimulation. Fine wire elctrodes have been implanted intraneurally in a series of animals and in three patients. Preliminary results look encouraging, and this approach seems to hold considerable promise for a new generation of electrode design.

Amputees↗
PubMedDate not supplied

Spinal cord monitoring using evoked potentials recorded from feline vertebral bone.

A new recording method for continuous spinal cord monitoring has been developed at Rancho Los Amigo Hospital. Using peripheral nerve stimulation, spinal evoked potentials (SEPs) are recorded from cancellous bone of spinous processes. This neurologically noninvasive technique provides a highly reproducible and consistent signal, unaffected by biologic noise and surgical handling of the spinal column. Moreover, the evoked response is extremely sensitive to changes in functional integrity of the spinal cord. In experimental spinal cord injuries, produced by localized distraction of the spine, changes of the evoked responses were well correlated with the change in spinal cord function.

Animals↗
PubMedDate not supplied

Pouching of medications in the mouth: a case report.

Foods or medicines can be pouched or held in the mouth to prolong taste, enjoyment, or effect. This article describes a patient who pouches medications. The oral injury that occurred from this behavior is reported.

Administration, Oral↗
PubMedDate not supplied

A survey of the availability of dental services to developmentally disabled persons residing in the community.

Public Law 88-164, enacted in 1963, has led to extensive deinstitutionalization of persons with mental retardation from a peak census of 194,650 in 1967 to 91,440 by 1988. This population now depends on the community-based health care system for medical and dental care. A survey conducted to determine the availability of dental care to the developmentally disabled residing in group homes located in north central Florida indicated that 40% of caretakers experienced difficulty in locating dentists willing to provide comprehensive dental services for residents. According to the caretakers, although 75% of the residents were cooperative dental patients, dentists were reluctant to provide services for a variety of reasons, including financial disincentives, inadequate knowledge and preparation, and a lack of proper equipment necessary to treat this group of special patients.

Adolescent↗
PubMedDate not supplied

Effects of chlorhexidine spray on plaque and gingival health in institutionalized persons with mental retardation.

In this study, eight institutionalized males received a 0.12% chlorhexidine gluconate spray twice daily. A second group of eight males received a placebo spray in the same manner. The results indicated that pump-administered chlorhexidine spray can effectively reduce plaque and gingivitis in patients with mental retardation who are unable to brush their own teeth.

Adult↗
PubMedDate not supplied

Pica: a peculiar behavior with oral involvement.

Pica is a behavior commonly displayed by children, pregnant females, and individuals with mental retardation. A population of institutionalized adults with mental retardation was assessed for pica. Of this population, 10.8% were identified with this behavior. Also, this article discusses aspects of pica and describes how this behavior can affect the mouth.

Adolescent↗
PubMedDate not supplied

Tobacco and the institutionalized mentally retarded: usage choices and ethical considerations.

Patterns of tobacco use were observed among 749 people diagnosed with mental retardation residing in a state-operated facility. Specifically, individual preference for tobacco products and frequency of use were documented. Subjects were observed using several types of tobacco products: cigarettes, cigars, chewing tobacco, snuff, and cigarette butts. Approximately 7% (n = 52) used at least one form of tobacco; ten individuals used more than one tobacco product. Interestingly, 20.5% of the individuals diagnosed with mild or moderate mental retardation (n = 122) consumed tobacco products, a pattern of behavior that closely approximates that of the general population (20-24%). Ethical considerations pertaining to the availability of tobacco products to this special population are presented.

Adult↗
PubMedDate not supplied

Experience with implanted electrodes at Rancho Los Amigos Hospital.

Implanted units, manufactured by Medtronic, Inc., have been implanted in 31 patients for treatment of drop-foot. The principal problem encountered in this series is inflammatory reaction, which was observed in 7 patients and was serious enough in 5 to require removal. Theree have been no failures of the implanted equipment for periods of up to 7.3 years, although there is currently a question in 1 patient. There has also been no documented damage to the nerve due to chronic stimulation. Fine wire electrodes have been implanted intraneurally in a series of animals and in 3 patients. Preliminary results look encouraging, and this approach seems to hold considerable promise for a new generation of electrode design.

Electric Stimulation Therapy↗