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Biomedical subjects

B Sarter

Publications and source records attributed to B Sarter.

8 recordsLinked to original sources

ICD data storage: value in arrhythmia management.

Sophisticated diagnostic information is provided by the latest generation of implantable defibrillators. The success of therapy and the type of therapy successful in terminating ventricular arrhythmias is provided by interrogating the ICD device. In addition, R to R interval information can be retrieved. In selected devices, either local bipolar electrograms from the rate sensing leads or wide bipolar electrograms from the energy delivering leads provide visual confirmation of the presence of ventricular tachyarrthythmic events leading to therapy. The value and limitations of this sophisticated diagnostic information in providing insight into the electrical events triggering therapy and the events triggering ventricular arrhythmias are discussed.

Arrhythmias, Cardiac

Hue discrimination and S cone pathway sensitivity in early diabetic retinopathy.

Measures of hue discrimination and M (green) and S (blue) cone pathway sensitivities were compared in a group of 24 diabetics with either early background retinopathy or no retinopathy. The Farnsworth-Munsell 100-hue test was used to measure hue discrimination, and a two-color increment threshold technique was used to measure S and M cone pathway sensitivities. The results were compared to the level of diabetic retinopathy, to the degree of macular edema, and to the duration of the disease. No significant correlation was found between the Farnsworth-Munsell 100-hue error scores and the level of retinopathy; S cone pathway sensitivity loss, however, correlated significantly with both the level of retinopathy and the degree of macular edema. Our results indicate that measurements of S cone pathway sensitivity using an increment threshold technique provide a more sensitive method than hue discrimination for detecting color vision deficits in early diabetic retinopathy.

Adult

Evolutionary idealism: a philosophical foundation for holistic nursing theory.

The philosophical tradition of evolutionary idealism is explored as an appropriate metaphysical foundation for holistic nursing science. Some implications of this tradition for theory development, testing, and practice are identified. It is suggested that evolutionary idealism can form an appropriate philosophical foundation for nursing theory development.

Biological Evolution

Love and work: oncology nurses' view of the meaning of their work.

Phenomenological interviews with 23 nurses and more than 200 hours of participant observation on units of one cancer hospital were conducted to obtain a better understanding of how nurses caring for patients with cancer view their work. When asked to discuss a "critical incident" that captures the essence of oncology nursing for them, most nurses described acute physiologic emergencies. A few nurses described psychosocial needs and explained how they had helped or were unable to help patients and families deal with these needs. A major theme in these incidents was how they related to the nurses' own lives. These findings suggest the need to provide nurses with support and an opportunity to discuss their work. Oncology nurses appear to be motivated by a deep concern for patients and families that creates tremendous stress when conditions such as poor staffing, excessive use of registry nurses, and unexpected crises occur. The task orientation of these nurses also seems to be based on their fundamental concern for patient welfare.

Adaptation, Psychological