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Biomedical subjects

E Davis

Publications and source records attributed to E Davis.

At least 127 records · Page 7Linked to original sources
PubMed1979

An evaluation of biomicroscopy of the conjunctival vessels.

Human clinical biomicroscopy is an aid to the assessment of the microcirculation in health and disease. It has only limited diagnostic value but in some important conditions gives helpful clues and in a few conditions pathognomonic information. Features which can be evaluated include intravascular red cell aggregation, small blood vessel patterns, diameter of vessels, stasis pools, microaneurysms, petechiae and vasomotion. Red cell aggregation correlates well with sedimentation rate. Some of these factors, or combinations of them, correlate well with arteriosclerosis, diabetes, and hypertension. The apparatus required is relatively simple, and the method is noninvasive.

Aneurysm↗
PubMed1977

The use of student ratings in multiinstructor courses.

In this study the authors examined the efficacy of using student ratings of teaching effectiveness in multiinstructor courses. Specific issues addressed included student ability to identify differences in faculty teaching effectiveness, the consistency of student rating obtained immediately following each lecture with those obtained at the conclusion of the course, and the relationship between individual faculty ratings and overall course ratings. A random sample of students rated each of 14 lectures in a psychopathology course using a 13-item rating scale immediately after each lecture and again at the end of the course. Results indicated that differences in faculty teaching effectiveness are measurable, ratings of individual faculty are relatively stable over over time, and rating of individual faculty are separable from those of the course as a whole. Implications of this research for use of student ratings are also discussed.

Education, Medical↗
PubMed1977

Muscle capillaries and retinopathy among Israeli diabetics. With special reference to measurement techniques, relationship to age and the pericyte.

Our investigation of the capillaries of 64 Israeli diabetics confirm the fact that retinopathy is consistently associated with thickening of the basal lamina of peripheral muscle capillaries but the converse is not so. The change in pericapillary structure may affect the capillary function. The primary cell involved, either causally or as a consequence of the lexion, is the pericyte.

Age Factors↗
PubMed1975

Xanthinol nicotinate in peripheral vascular disease.

In a double-blind control of xanthinol nicotinate ('Complamin'; 'Complamex') in patients with severe progressive obliterative vascular disease, 25 of 33 patients who completed the trial were helped significantly by the drug, as shown by both clinical and laboratory findings. Placebo helped in 4 of 33 patients. The difference is significant (p less than 0-001). These are the results for the trial period only. The results of follow-up for 6 to 30 months are available in 18 patients: 14 of these still had appreciable help from the drug, which was continued in maintenance doses. It should be noted that 3 of 6 diabetics were no longer helped after 6 months, and that only 3 of a total of 7 patients under the age of 50 were helped; however 3 of the 4 not helped were diabetics under the age of 50. Special caution was indicated in the use of the drug in patients who have ischaemic heart disease in addition to their peripheral arterial disease. Side-effects were common, particularly a severe prolonged flush shortly after taking a dose of the drug; many patients helped by it accepted this side-effect if it occurred. Xanthinol nicotinate reduced whole-blood viscosity and cholesterol and fibrinogen in about half of the patients helped. This is a useful drug for about half the patients in whom surgery is not indicated or is contraindicated.

Adult↗