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S M Kaplan

Publications and source records attributed to S M Kaplan.

26 records · Page 2Linked to original sources
PubMedDate not supplied

Sincalide-aided ultrasonography of the common bile duct as a predictor of biliary obstruction determined by ERCP and biliary manometry.

Sonographically observed changes in common bile duct caliber following intravenous sincalide injection were correlated with distal common duct pathology as defined by endoscopic retrograde cholangiopancreatography and biliary manometry. Thirty-two patients, 17 with prior cholecystectomies, were studied. In post-cholecystectomy patients, a 1-mm or greater diminution of duct caliber within 5 min represented a normal response. When gallbladder contraction occurred in normal patients with an intact gallbladder, no change or a diminution in duct caliber was observed. When gallbladder contraction was not observed, a normal response was considered to be the same as that in post-cholecystectomy patients with a diminution in duct caliber occurring. By using these criteria two false negatives, both with hypertensive sphincters of Oddi that responded normally to sincalide injection, were encountered. This technique was valuable in defining non-obstructed post-cholecystectomy dilated bile ducts which demonstrated a prompt diminution in caliber following sincalide injection.

Adult↗
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Mechanisms underlying the suppression of erythropoiesis by hyperoxia.

The possible mechanisms underlying the suppression of erythropoiesis in hyperoxic animals were studied. Male Long-Evans rats were injected with cobaltous chloride hexahydrate, a known erythropoietic stimulant. One group was exposed to a hyperoxic environment for ten hours. Both serum levels of erythropoietin (Ep) and renal levels of erythrogenin were significantly lower (p less than 0.005) in the hyperoxic animals compared to those left at room air. In addition, inhibitors to Ep or erythrogenin could not be detected in either the serum or renal tissue of the hyperoxic rats. These results indicate that the primary factor responsible for the erythropoietic suppression observed in a hyperoxic environment is a decreased production of erythrogenin which results in turn, in a lowered level of circulating Ep.

Animals↗
PubMedDate not supplied

The Absolutely Basic Concepts of being a nurse entrepreneur.

As nurses become more comfortable with the notion of entrepreneurial practice in a setting that may take them outside of the traditional hospital or outpatient milieu, there are a number of considerations that need to be addressed. The purpose of this article is to review many of these points in a succinct and practical fashion for the nurse who may be considering such a move.

Accounting↗
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The nurse as change agent.

Whether an employee of an organization or an independent consultant, the nurse can function as a catalyst and planner for change. Clinical expertise, theoretical knowledge, and a commitment to the outcome of the change project can empower the nurse to successfully assess, plan, implement, and evaluate the change process.

Humans↗