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Biomedical subjects

E Weinstein

Publications and source records attributed to E Weinstein.

47 records · Page 3Linked to original sources

The importance of aerobic metabolism in the renal concentrating process.

The extent to which the concentrating function of the kidney depends on oxidative processes was investigated by infusing cyanide into one renal artery of dogs undergoing mild mannitol diuresis while receiving an infusion of vasopressin. This produced an abrupt fall in concentrating capacity (T(c) (H2O)) that was reversed when the cyanide infusion was stopped. The change could not be accounted for by the accompanying solute diuresis, since it was not reproduced by increasing the rate of mannitol infusion. The reduction in T(c) (H2O) induced by cyanide did not result from increased delivery of dilute urine to the collecting ducts, since free water clearance (C(H2O)), studied in other dogs during water diuresis, was unchanged or decreased by cyanide. Cyanide produced renal vasodilatation, as did intraarterial acetylcholine, but in contrast to the striking reduction in concentrating capacity evoked by cyanide, T(c) (H2O) was not significantly changed by acetylcholine. The data indicate that concentrating ability is closely tied to oxidative metabolism in the kidney, and it is suggested that the region where this is critically important is the red medulla and the thick ascending limb of Henle's loop.

Acetylcholine↗

Echocardiographic diagnosis of discontinuous left pulmonary artery as an isolated lesion.

The diagnosis of a discontinuous left pulmonary artery arising from a left ductus arteriosus was made by two-dimensional and Doppler echocardiography in an infant with recurrent pneumonia. The diagnosis was later confirmed at cardiac catheterization and surgery. The suprasternal notch views were especially useful for the identification of the left pulmonary artery. In this patient with a right aortic arch, the left pulmonary artery was supplied by a left ductus arteriosus that arose from the innominate artery. This case report describes the echocardiographic diagnosis of discontinuous left pulmonary artery as an isolated lesion, an unusual lesion that can easily be missed. It emphasizes the necessity of a careful and complete examination with particular emphasis on pulmonary artery continuity in patients suspected of having congenital heart disease or respiratory compromise as a result of a cardiovascular cause.

Echocardiography↗

Elements of the art of practice in mental health.

OBJECTIVE: This qualitative study explored elements of artful practice of therapists practicing in mental health treatment settings. METHOD: In-depth interviews were conducted with three occupational therapists practicing in mental health who were considered exemplars of artful practice. Themes pertaining to their perspectives and approaches to practice were synthesized from interview data. RESULTS: The prevailing themes--therapeutic work as a vehicle for healing, collaborative guidance, and the Zen of therapy--are seen as elements forged by the therapist's compassion and unique personal style into a dynamic therapist-client interplay that creates a space for growth and healing to occur. Results affirmed the view of the art of practice in mental health as an intricate interplay of personal traits, interpersonal skills, and skilled use of meaningful activities within the context of a client's environment. CONCLUSION: The art of practice is a fluid, experiential process that takes place on a developmental continuum. The therapist's inner awareness of the subtlety of a multilayered healing process is an important basis of artful practice. One's practice art can be informed by knowledge of specific elements that contribute to artful practice and can be developed through education, self-reflection, personal growth, and the maturation process.

Art Therapy↗

The clinico-pathological spectrum of Mondor's disease: an important surgical entity.

A total of five cases of Mondor's disease and/or Mondor variants are presented. Although the patients did not have the classical signs of extreme tenderness along the right lateral chest wall, Mondor's disease was detected in later forms at biopsy which was taken for various reasons, such as lump in the breast, discomfort, abnormal mammography, etc. The progression of the disease from a form of acute phlebitis to thrombophlebitis and phlebosclerosis with either recanalization or ultimate obliteration of the vein wall and lumen by sclerotic hyalinized tissue and/or calcification, is demonstrated. A greater awareness of this disease will ultimately lead to the discovery of more cases of this benign entity. Although the etiology is not in any way related to a specific condition, the major cause of the disease appears to be trauma (e.g. blunt trauma, biopsy, etc.).

Breast↗