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Biomedical subjects

S H Hicks

Publications and source records attributed to S H Hicks.

5 recordsLinked to original sources

Laser education. Are current programs meeting perioperative nurses' needs?

As we expected, our surveys found that advanced-level respondents were more highly trained and more experienced, and they perceived themselves as more knowledgeable and more skilled than basic-level laser nurses. Respondents surveyed in 1991 were better educated and more experienced, and they perceived themselves as more knowledgeable and slightly more skilled than those surveyed in 1989. Though these apparent trends are encouraging, other findings indicate that there are large gaps in the knowledge base of even advanced-level laser nurses, particularly in the area of basic laser physics. Of those responding to the item on attendance at educational programs on lasers, 91% had attended some type of laser inservice or education program. Far more respondents, however, had attended manufacturer-provided operational inservice programs or hospital inservice programs on safety compared to those who reported having attended in-depth continuing education courses. In addition, wide discrepancies were observed between the percentages of respondents who had experience with a given type of laser and those who had education beyond the level of operational inservice programs. Apparently, a significant number of nurses who are involved in laser procedures have had no training beyond a very basic level. Respondents rated themselves most knowledgeable about areas related to laser safety and operation. When asked to identify the most important areas of laser education, patient and personnel safety was the paramount concern for all four groups. At the same time, they identified laser physics and tissue interaction as difficult-to-understand, yet important, areas of laser education.

Curriculum↗

Technology assessment and cost management.

Endoscopic, less-invasive surgery has reshaped health care. The skill of correctly assessing purchases and leases is critical to a surgical service's success. Video technology changes rapidly, and systems become obsolete in months, not years. Each update presents new learning curves, thus additional educational costs. Choosing reusable instrumentation may include hidden costs not fully appreciated, whereas disposables may create waste management and environmental problems. Assessing and managing the costs related to less-invasive surgery require in-depth analyses of an institution's specific needs and of available and future technology.

Costs and Cost Analysis↗

Perioperative nursing care of the patient experiencing laser surgery.

Perioperative nursing care for patients undergoing laser procedures must reflect the six-step nursing process of assessment, diagnosis, outcome identification, planning, implementation, and evaluation. Recommended practices, guidelines, and institutional policies and procedures offer additional guidance for an optimal level of practice by nurses involved with patients having laser procedures.

Humans↗

Peroxisome proliferation and induction of peroxisomal enzymes in mouse and rat liver by dehydroepiandrosterone feeding.

Dehydroepiandrosterone (DHEA) treatment is effective in the prevention of various genetic and induced disorders of mice and rats. In studies designed to define some of the basic mechanisms that underline the beneficial chemopreventive effects exerted by the action of this steroid, we found that the liver undergoes profound changes that result in: (i) hepatomegaly; (ii) color change from pink to mahogany; (iii) proliferation of peroxisomes; (iv) increased cross-sectional area and volume density of peroxisomes; (v) increased or decreased number of mitochondria per cell; (vi) decreased mitochondrial cross-sectional area; (vii) marked induction of the peroxisomal bifunctional protein enoyl-CoA hydratase/3-hydroxyacyl-CoA dehydrogenase; (viii) increased activities of enoyl-CoA hydratase and other peroxisomal enzymes assayed in this study, viz. catalase, carnitine acetyl-CoA transferase, carnitine octanoyl-CoA transferase, and urate oxidase; and (ix) increased activity of mitochondrial carnitine palmitoyl-CoA transferase. In addition, feeding DHEA to mice resulted in increased plasma cholesterol levels in two strains of mice evaluated in this study, and either slightly decreased or markedly increased plasma triglyceride levels, depending on the strain. Whether liver peroxisome proliferation, induced by DHEA feeding to mice and rats, plays a role in the chemopreventive effects elicited by this steroid remains to be established.

3-Hydroxyacyl CoA Dehydrogenases↗