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Biomedical subjects

Kathy C Richards

Publications and source records attributed to Kathy C Richards.

11 recordsLinked to original sources

Research testing of tailored interventions.

The purpose of this article is to offer rationale to support the argument for research testing of tailored interventions. The individualization of nursing interventions is used as a basis for discussion of the emergent need to test tailored interventions at the research rather than practice level. Both justification of efficacy and feasibility support the research testing of tailored interventions, in support of an evolving nursing process. In order to retain its patient-centered focus and yet meet scientific standards for practice, nursing must evaluate the individualization of care through more theory-based and systematic research processes. The testing of tailored interventions at the research level would provide a means to achieve these ends.

Cost-Benefit Analysis↗

Sleep in persons with dementia: Increasing quality of life by managing sleep disorders.

In individuals with dementia, sleep disruptions (e.g., increased number of nighttime awakenings after falling asleep, lower sleep efficiency, increased daytime napping, changes in the amount of rapid eye movement (REM) and non-rapid eye movement (NREM) sleep increase as the dementia increases in severity. Sleep can also be disrupted in individuals with dementia because of primary sleep disorders, such as obstructive sleep apnea, advanced sleep phase syndrome, and restless legs. Other factors that contribute to disrupted sleep in individuals with dementia include age, acute and chronic illness, mood disorders, and medication use.

Aged↗

Oximeter's acquisition parameter influences the profile of respiratory disturbances.

STUDY OBJECTIVES: Pulse oximetry (Sp02) is a key parameter monitored during polysomnographic studies, and different acquisition settings can be employed to obtain this data. The purpose of this study was to determine if the use of different settings would significantly influence scoring of respiratory disturbance events (RDE). DESIGN: Prospective study SETTING: Sleep Disorders Center - community PATIENTS: 30 patients had three identical oximeters simultaneously attached to the digits during polysomnography, each placed in a different recording setting: 3, 6 and 12 seconds. INTERVENTIONS: None. MEASUREMENTS: RDEs were identified by changes in snoring and flow then sub-categorized as RDE0, RDE1-2 and/or RDE3 if less than 1%, greater than 1 but less than 3%, and 3% or greater oxyhemoglobin desaturation occurred. Each event was given three labels according to the level of desaturation seen on each oximetry tracing. RESULTS: Significant differences in the mean frequency of RDE types at each recording setting were noted (p < .001). A survey of sleep practitioners revealed changes in clinical behavior when presented examples of such differences. CONCLUSION: These data confirm the impact of different oximetric recording settings on the profile of RDEs and the importance of reporting such acquisition settings in studies of sleep disordered breathing.

Electroencephalography↗

Sleep promotion in hospitalized elders.

Older adult patients often have poor, fragmented sleep when they are in the hospital. The factors contributing to sleep disturbance in hospitalized elders will be explored, and interventions for promoting sleep among these patients will be discussed.

Aged↗

Sleep-disordered breathing and stroke.

Sleep-disordered breathing (obstructive and central sleep apnea) is common in persons who have had a cerebrovascular accident (CVA). This article describes both sleep-disordered breathing and CVAs and reviews the related risk factors that link them together. In addition, the article discusses sleep-disordered breathing after CVA. The article concludes by presenting the clinical implications of this topic for nurses.

Aged↗

Sleep-related breathing disorders in patients who are critically ill.

This descriptive study describes the frequency and severity of sleep-related breathing disorders in men who are hemodynamically stable who have an acute cardiovascular illness and are hospitalized in a critical care unit. Sixty-four males, aged 55-79 years, with an acute cardiovascular illness, stable hemodynamics, and no ongoing chest pain or history of sleep apnea were studied for 1 night in the critical care unit using polysomnography. Forty-seven percent of the sample had an apnea-hypopnea index > or = 5, with events of both obstructive and central etiologies, including Cheyne-Stokes respiration. Oxygen desaturation to < or = 90% occurred in 61% of the sample. There were no episodes of chest pain, ventricular tachycardia, or heart block associated with apneic or hypopneic events; however, dysrhythmias, including sinus bradycardia, supraventricular tachycardia, and premature ventricular beats, were associated with apneic and hypopneic events.

Acute Disease↗

Oximeter performance: the influence of acquisition parameters.

STUDY OBJECTIVE: This study was designed to determine whether different desaturation indexes (DIs) would be obtained in patients with sleep-disordered breathing by systematically altering two acquisition parameters: the recording setting and the display mode. DESIGN: Prospective clinical study. SETTING: Community sleep-disorders center. PATIENTS: The study included 75 patients who were suspected of having sleep-disordered breathing. INTERVENTIONS: Each patient had simultaneous pulse oxyhemoglobin saturation (SpO2) traces at three recording settings (3 s, 6 s, and 12 s) during the diagnostic phase of split-night polysomnography. On-line and memory displays of those data at each recording setting were obtained. DIs for > or = 3% desaturation events per hour were calculated for each of the six traces. RESULTS: The mean on-line DIs significantly differed from each other, with slower (longer) recording settings resulting in lower values than faster (shorter) settings. The memory DIs all significantly underestimated the on-line DIs. Pearson correlations ranged from 0.82 to 0.90 between the on-line/memory DI pairs, but Bland-Altman analysis detected disagreement at higher levels of disordered breathing. CONCLUSIONS: These findings confirm that significantly different SpO2 data are obtained at various acquisition options. The recording setting and display mode parameters should be disclosed in all reports employing oximetry with the fastest recording setting and on-line display mode preferable for case finding of sleep-disordered breathing.

Adult↗

Sleep and cognition in people with Alzheimer's disease.

It is important that we identify factors that could lead to interventions to slow cognitive decline in people with Alzheimer's disease. One potentially modifiable factor in Alzheimer's disease is disturbed sleep. The effect of disturbed sleep on cognition is of profound importance in people with Alzheimer's disease because disturbed sleep may worsen memory complaints. Therefore, the purpose of this article is to provide an updated review of literature that describes the impact of disturbed sleep on cognition in healthy populations and discuss the implications that this relationship has for people with Alzheimer's disease and their formal and informal caregivers.

Alzheimer Disease↗