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Biomedical subjects

D W Robinson

Publications and source records attributed to D W Robinson.

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

Mononuclear cell analysis of peripheral blood from burn patients.

Mononuclear and polymorphonuclear cells isolated by Ficoll-hypaque density-gradient sedimentation from peripheral blood of 25 burn patients at 3-to 4-day intervals during hospitalization were subjected to morphologic analysis. The aim was to identify all cells isolated and to examine the cell population characterized as B-lymphocytes. Patterns of response comprised of lymphocytes, monocytes, neutrophils, and precursor cells in varying stages of maturity were delineated. Shortly after thermal trauma, isolated cell pools from all patients contained high proportions of immature cells. In surviving patients during convalescence, the cell pools had increasing proportions of mature cells and corresponding declines in immature cell types. Patients who died did not produce large populations of mature cells at any time during their hospitalization. Cells identified morphologically as lymphocytes were accounted for by E-rosette assay (T-lymphocytes). Cells previously identified as B-lymphocytes appeared morphologically to be monocytes, were positive for Fc and complement receptor activity, and were phagocytically active.

B-Lymphocytes↗
PubMed1979

Age effect in hearing - a comparative analysis of published threshold data.

Numerical data from the literature on presbyacusis, in the form of pure-tone hearing threshold levels as a function of age, are subjected to critical evaluation and analysis. A formula is derived for predicting the age effect for otologically screened groups of males and females. Further, the complete distribution of hearing levels for each audiometric frequency in the range 0.125-12 kHz and at any age can be estimated with the aid of tabulated coefficients and some simple rules. The study was undertaken in connection with the work of ISO on standardization of normative audiometric data.

Adult↗
PubMed1975

Histories obtained by two-stage questionnaire with automated transcript in specialist gynaecological practice.

A two-stage questionnaire which the patient completes at home has been developed for use by gynaecological outpatients. The first stage (root) identifies the patient's problem and obtains general background information. The second stage (branch) deals with the presenting problem in depth. The system has proved highly acceptable to patients. At the clinic a non-medical assistant uses a programmed typewriter to transcribe the data into a typewritten history which is handed to the doctor before he examines the patient. The transcript compares favourably with the conventional hand-written history in content, ease of assimilation, and cost. While the questionnaire itself is an excellent means of collecting information it becomes an efficient means of transmitting information to the clinician only when combined with the transcript facility. There is no storage of confidential information and no scope for unethical disclosure.

Adolescent↗
PubMed1975

Acinic cell carcinoma: collective review, including bilateral cases.

Bilateral acinic cell carcinoma of the parotid gland is rare. On the basis of one case and a review of 486 parotid acinic carcinomas, unilateral as well as bilateral, total parotidectomy seems to be the treatment of choice for this low-grade malignant neoplasm that recurs commonly following inadequate excision. If involved by tumor, the facial nerve must be taken. Metastases are more likely to lung and bone than to regional nodes. For this reason, radical neck dissection is not routinely indicated.

Adolescent↗
PubMed1975

Surgical problems in the excision and repair of radiated tissue.

Surgical procedures for tissues damaged by radiation are fraught with the possibility of multiple and serious complications. A knowledge of the altered pathophysiology of such tissues (chiefly diminished blood supply, fibrosis, and direct cellular reparative potential) is necessary for the surgeon to make a proper judgment. Recognition of the pathognomic signs in the skin is important. The possibility of malignant change must be kept in mind. Surgical treatment must include the excision of radiated tissues back to good blood supply, and then proper and adequate coverage by the simplest and best means. If the surrounding local tissues are so altered that they are unsuitable for coverage, structures from a distance must be used. Prior planning of the coverage before the excision pays dividends by preventing disastrous complications.

Amputation, Surgical↗