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Biomedical subjects

L J Davis

Publications and source records attributed to L J Davis.

At least 109 records · Page 6Linked to original sources

Transcatheter arterial occlusion in the management of rectosigmoidal bleeding.

Transcatheter arterial occlusion was performed in five patients with recurrent rectosigmoidal bleeding. Four had malignant neoplasms, and the fifth, an arteriovenous malformation. The superior hemorrhoidal artery was embolized in two patients, the inferior mesenteric artery in two, and the left internal iliac artery in one patient. In four patients, immediate and complete control of rectal bleeding was achieved, and gradual control was accomplished in the fifth patient. Left lower quadrant pain and fever developed in three patients. The possibility of rectosigmoidal bleeding from the internal iliac artery is stressed.

Adult↗

Standard scores for Wechsler memory scale subtests.

Equations are provided for the calculation of age-corrected standard scores with a mean of 10 and a standard deviation of 3 for the Mental Control, Logical Memory, Visual Reproduction, and Associate Learning subtests of the Wechsler Memory Scale. Use of the standard scores is expected to facilitate intersubtest comparisons.

Adolescent↗

Intrarenal arteriovenous fistulas: transcatheter steel coil occlusion.

Intrarenal arteriovenous fistulas are either congenital (cirsoid), acquired or idiopathic. Transcatheter occlusion of these fistulas was accomplished using the Gianturco stainless steel coil. The anatomical configuration of the feeding and draining vessels dictated the technical approach. There was considerable conservation of renal tissue as the result of this non-surgical therapeutic alternative.

Aneurysm↗

Therapeutic vascular occlusion utilizing steel coil technique: clinical applications.

The stainless steel coil has been utilized for permanent intravascular occlusion of the proximal portion of the renal, hepatic, splenic, and internal iliac vessels. This therapeutic approach has been successful in the management of renal arteriovenous fistulas, renal carcinomas, neoplasms of the liver, giant cell tumors of the sacrum, and in hypersplenism. The techniques involved and clinical uses are discussed.

Adult↗

Medical recommendations--followed or ignored? Factors influencing compliance in arthritis.

Physiatrists are frequently confronted by the failure of patients to follow medical advice, with resultant adverse effects on rehabilitation outcomes. This paper examines the compliance of arthritis patients with an exercise regimen. A number of factors are examined in this study in assessing elements related to patient compliance. Included are patient attributes and perceptions, professional home visits and form of instruction in the regimen and selected features of the patient's social environment. Age, activity status and marital status, use of medications, patient understanding of arthritis and professional home visits appear to have a bearing upon patient compliance. Careful attention to factors likely to influence patient compliance will prove helpful in efforts designed to enhance rehabilitative progress and, ultimately, improve the lives of patients.

Adult↗

The use of prostaglandin E1 to enhance the angiographic visualization of the splanchnic circulation.

Superior mesenteric angiograms were obtained in a series of dogs before and again after the injection of a 1-ml bolus of prostaglandin E1 (0.1-1.0 mug/kg) through the angiographic catheter. The prostaglandin E1 produced, on the average, a 100% increase in the superior mesenteric arterial blood flow with only minimal changes in the heart rate, systemic arterial pressure, and portal venous pressure. Opacification of the portal venous system was consistently enhanced after the prostaglandin E1. The arterial phase was preserved by increasing the rate of contrast administration.

Animals↗

Organization and unionization of health workers in the United States: the trade union perspective.

Recent legislation in Washington opened the door to organization and unionization of health workers in voluntary hospitals and highlighted the poor pay and unorganized status of this enormous work force of at least 1.5 million persons, many of whom are women, black, or Spanish-speaking. The authors, who are senior officials of District 1199 of the National Union of Hospital and Health Care Employees, chart the factors associated with the low priority given over the years to organizing hospital workers, and the first breakthroughs, in New York City hospitals, in 1958. From a start with lowest income hospital workers, the subsequent inclusion of technical and professional workers and linkages with the highly publicized hospital workers' strike in Charleston, South Carolina in 1969. The benefits of unionization and the broader social goals of the union are discussed.

Civil Rights↗

Experimental use of prostaglandin E1 in nonocclusive mesenteric ischemia.

Nonocclusive mesenteric ischemia was produced in dogs by intraarterial infusion of digoxin and by hemorrhage of 1/3 of total blood volume. Both methods produced a substantial drop in the superior mesenteric arterial blood flow rate. In each case, a superior mesenteric arterial infusion of 0.1 mug./kg. per minute of prostaglandin E1 allowed the blood flow rate to increase to above the control level without significantly altering heart rate or systemic arterial pressure. The improved arterial blood flow rates were accompanied by a reversal of the diffuse mesenteric vasoconstriction that was seen in the ischemic state. These findings were demonstrated by superior mesenteric arteriography performed prior to and following the production of mesenteric ischemia and again following the infusion of prostaglandin E1.

Animals↗

Experience with a drug information services review committee.

The efforts of a committee to review the performance of a formal drug information service were evaluated. The organization and functions of the committee are described, Among other duties, the committee rates the difficulty of a random selection of questions and the adequacy of the answers provided. These ratings were compared to the evaluations of the persons asking the questions. There appeared to be a correlation between the ratings of the review committee and the evaluation of users of the service.

Information Services↗