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Biomedical subjects

J E Norris

Publications and source records attributed to J E Norris.

14 recordsLinked to original sources
PubMed1991

The effect of carbon dioxide laser surgery on the recurrence of keloids.

The efficacy of carbon dioxide laser excision as a primary modality for the treatment of keloids was evaluated. This retrospective study focuses on 31 patients with one or more keloids, 23 of whom were available for follow-up after carbon dioxide laser excision. The patients' ages ranged from 5 to 72 years. There were 16 females and 7 males. One patient was Caucasian, 22 patients were non-Caucasian, and there were no Asians. The keloids that were excised ranged in size from 1 to 30 cm in greatest diameter. One patient had no recurrence of her keloid after carbon dioxide laser excision, 9 patients required steroids to suppress recurrences, and 13 patients were considered failures. Reasons for the failure of this modality, as well as speculation regarding the future of this procedure, are discussed.

Adolescent↗
PubMed1989

Intergenerational relations and family therapy research: what we can learn from other disciplines.

Although there are a number of theories regarding intergenerational relations within the family therapy field, few of these theories have been empirically examined. Indeed, intergenerational family research is in its infancy in the family therapy world. This article explores the literature on intergenerational relations within the sociological and psychosociological disciplines in order to understand what is known, and how this information could assist family therapy researchers interested in developing systematic studies of intergenerational relations for the family therapy field.

Age Factors↗
PubMed1985

Reconstruction of half of the face.

A 29-year-old man underwent a severe electrical burn involving the entire right side of the face, resulting in destruction of the temple, orbit, a portion of the nose, zygoma, and maxilla, through-and-through destruction of the cheek and lips, and a portion of the parotid gland and buccal mucosa. This massive and debilitating wound was an acute surgical emergency, as far as life-support measures were concerned. Gradually, the patient underwent débridement, and finally resurfacing of the entire right side of the face with a large deltopectoral flap. Over four years, this flap, the area of the orbit, and the area of the lips underwent rehabilitation and the transportation of residual regional muscles, and the debulking and repositioning of the flap was carried out. The orbit was finally rehabilitated with a prosthesis.

Adult↗
PubMed1985

Cosmetic and reconstructive breast surgery in blacks.

Black women have not embraced cosmetic and reconstructive surgery of the breast with the same enthusiasm as their Caucasian counterparts because of fear of hypertrophic scars. The authors offer suggestions on how to minimize the scarring associated with breast surgery in black women. They feel that intraareolar incisions should be used whenever circumareolar incisions are indicated in augmentation mammaplasty, because the areola, being a favored area, is less likely to produce hypertrophic scars. The Marchac technique of reduction mammaplasty is recommended because it produces a short horizontal scar of 5 to 8 cm confined to the breast without medial and lateral extension, which may hypertrophy in black women. In the reduction of large breasts, secondary excision of dogears 6 or more weeks after mammaplasty reduces the medial and lateral extents of the scar. The use of liposuction as an adjunct to reduction mammaplasty may also accomplish the same thing. Amputation and free nipple-areola grafting should be used with caution in black patients because of the tendency of the grafted areola to hypopigment. In postmastectomy reconstruction, the authors suggest that the techniques described by Ryan and Radovan should be considered first before the techniques of reconstruction utilizing myocutaneous flaps. In these procedures, no new scars which may hypertrophy are created away from the site of reconstruction. Staples should not be used in skin closure in blacks because they cause cross-hatching of the wound even when removed early.

Black People↗
PubMed1977

Responses of the canine myocardium to stimulation of thoracic cardiac nerves.

The thoracic cardiac nerves were stimulated in each of 21 dogs anesthetized with alpha chloralose. Recordings were made of heart rate, blood pressure, and contractile force from all four cardiac chambers. Walton-Brodie strain-gauge arches were sutured to both atria, and to three locations of each ventricle, representing both anterior and posterior surfaces. The functional autonomic components of each nerve were summarized and classified into four basic types. Types I and II were both located medial to the thoracic vagi. These were shown to contain both sympathetic and parasympathetic components traveling to all four chambers of the heart. The sympathetic componnent of the type II nerves produced reflex changes in force of contraction and systemic blood pressure. Nerves classified as types III and IV produced no parasympathetic effect on the heart. These were all located lateral to the thoracic vagi. While the type III nerves carried sympathetic efferent fibers to all four chambers, the type IV nerve carried sympathetic fibers predominantly to the right atrium.

Animals↗
PubMed1977

Responses of canine endocardium to stimulation of the upper thoracic roots.

In each of 10 mongrel dogs anesthetized with alpha chloralose, strain-gauge arches were sutured to five epicardial and three endocardial locations. Comparisons of contractile force responses during stimulation of the left and right roots of the same segmental level revealed several differences dependent upon the particular myocardial area observed. Of the three left ventricular endocardial areas studied, the interventricular septum was the most responsive, particularly during stimulation of the right roots. The basal free wall and posterior papillary muscle were more responsive to left-root than to right-root stimulations. Epicardial responses were consistent with those previously reported. Generally, all areas responded to the greatest degree during stimulation of the second roots with the third and first next in order of effectiveness. Although stimulation of each level of preganglionic outflow activated all epicardial and endocardial segments of the myocardium, the magnitude of the changes in contractile force were highly variable dependent upon the specific level of preganglionic outflow and the location of the strain-gauge arch.

Animals↗