Karen L. Saban

Measures of Psychological Stress and Physical Health in Family Caregivers of Stroke Survivors: A Literature Review

Studies have demonstrated that the stress of family caregiving places caregivers at risk for developing depression, poor quality of life, and health problems. The purpose of this review was to identify the ways in which variables are operationalized in studies addressing psychological stressors and physical health of family caregivers of stroke survivors. The adapted Pittsburgh Mind-Body Center model provides the organizing conceptual framework for this literature review. A literature search for relevant articles was conducted using Ovid Medline, PsycINFO, and Ovid Nursing Database for the period of July 1999 through June 2009 using the following search terms: caregiver (or family caregiver), stroke, stress, and health. Articles were included if they met the following inclusionary criteria: (a) written in English, (b) published in peer-reviewed journal, (c) focused on adults who were caring for an adult who experienced stroke, (d) included measures of stress and physical health or health-related quality of life, and (e) primarily used quantitative research methods. Twenty-four articles were identified that met the inclusion criteria. Findings related to the variables included in the adapted Pittsburgh Mind-Body Center model are discussed. Variables were not well defined, a wide array of measurement instruments were used, and measures were taken at broadly divergent time frames following stroke. Future research guided by a theoretical framework, consistent measures of variables, and standardized measurement time points would allow for better comparison of findings across studies, thus enabling clinicians to better understand the health risks of family caregivers.

Epigenetics and Social Context: Implications for Disparity in Cardiovascular Disease

BACKGROUND Although it is well established that African Americans (AA) experience greater social stressors than non-Hispanic Whites (NHW), the extent to which early life adversity and cumulative social stressors such as perceived discrimination, neighborhood violence, subjective social status, and socioeconomic status contribute to disparity in coronary heart disease (CHD) and stroke between AA and NHW are not well understood. PURPOSE The purpose of this paper is to propose a conceptual model based upon McEwens Allostatic Load Model suggesting how the relationships among social context, early life adversity, psychological stress, inflammation, adaptation, and epigenetic signature may contribute to the development of CHD and ischemic stroke. We hypothesize that social context and prior life adversity are associated with genome-wide as well as gene-specific epigenetic modifications that confer a proinflammatory epigenetic signature that mediates an enhanced proinflammatory state. Exposure to early life adversity, coupled with an increased allostatic load places individuals at greater risk for inflammatory based diseases, such as CHD and ischemic stroke. RESULTS Based on a review of the literature, we propose a novel model in which social context and psychological stress, particularly during early life, engenders a proinflammatory epigenetic signature, which drives a heightened inflammatory state that increases risk for CHD and stroke. In the proposed model, a proinflammatory epigenetic signature and adaptation serve as mediator variables. CONCLUSIONS Understanding the extent to which epigenetic signature bridges the psycho-social environment with inflammation and risk for CHD may yield novel biomarkers that can be used to assess risk, development, and progression of CHD/stroke. Epigenetic biomarkers may be used to inform preventive and treatment strategies that can be targeted to those most vulnerable, or to those with early signs of CHD, such as endothelial dysfunction. Furthermore, epigenetic approaches, including lifestyle modification and stress reduction programs, such as mindfulness-based stress reduction, offer promise to reduce health inequity linked to social disadvantage, as emerging evidence demonstrates that adverse epigenetic marks can be reversed.

Female caregivers of stroke survivors: coping and adapting to a life that once was.

ABSTRACT Despite the prevalence of women caring for stroke survivors, relatively little research has focused specifically on the experience and needs of informal female caregivers of stroke survivors. Therefore, the purpose of this study was to describe the experience of female caregivers who care for an adult family member who has experienced a stroke within the previous year using a qualitative methodology. A sample of 46 female caregivers of stroke survivors completed a demographic form and responded to open-ended written questions exploring their experiences as caregivers and how they coped with changes in their lives during the first year after the stroke. Four concepts emerged from the data: losing the life that once was, coping with daily burdens, creating a new normal, and interacting with healthcare providers. Findings suggest that female caregivers of stroke survivors grieve the life that they once shared with the stroke survivor and struggle to cope with multiple family and work demands while trying their best to interact with healthcare providers to attain the best possible care for their loved ones. Recognizing the unique challenges of female caregivers of stroke survivors may help nurses provide better support and resources to meet their needs.

Health-Related Quality of Life of Patients Following Selected Types of Lumbar Spinal Surgery: A Pilot Study

BackgroundOver 500,000 spinal surgeries are performed annually in the United States. Although pain relief and improved health-related quality of life (HRQOL) are expectations following lumbar spinal surgery, there is limited research regarding this experience from the individuals perspective. In addition, no studies have examined the HRQOL of persons who have had this surgery using a comprehensive approach. The intent of this study was to address this deficiency by an assessment of both the individual and environmental factors that impact perceived HRQOL using the Wilson and Cleary Model for Health-Related Quality of Life in persons who have undergone lumbar spinal surgery.MethodsThis was a pilot study of 57 adult patients undergoing elective lumbar spinal surgery for either herniated disk and/or degenerative changes. Individuals completed questionnaires measuring perceived pain, mood, functional status, general health perceptions, social support and HRQOL preoperatively and three months following surgery. Descriptive statistics, dependent t-tests, and MANOVAs were used to describe and compare the differences of the study variables over time.ResultsPreliminary results indicate overall perceived physical HRQOL was significantly improved postoperatively (t [56] = 6.45, p < .01), however, it was lower than the published norms for patients with low back pain. Both functional disability (t [56] = 10.47, p < .001) and pain (t [56] = 10.99, p < .001) were significantly improved after surgery. Although levels of fatigue and vigor were also significantly improved after surgery, both were less than the published norms. There was no change in the level of social support over time; however, level of support was consistent with that reported by patients with chronic illness.ConclusionAlthough perceived physical HRQOL was significantly improved three months postoperatively, fatigue and lack of vigor were issues for subjects postoperatively. Excessive fatigue and low vigor may have implications for successful rehabilitation and return to work for patients following lumbar spinal surgery. Further research is needed with a larger sample size and subgroup analyses to confirm these results.

Comparing VA and private sector healthcare costs for end-stage renal disease.

Background:Healthcare for end-stage renal disease (ESRD) is intensive, expensive, and provided in both the public and private sector. Using a societal perspective, we examined healthcare costs and health outcomes for Department of Veterans Affairs (VA) ESRD patients comparing those who received hemodialysis care at VA versus private sector facilities. Methods:Dialysis patients were recruited from 8 VA medical centers from 2001 through 2003 and followed for 12 months in a prospective cohort study. Patient demographics, clinical characteristics, quality of life, healthcare use, and cost data were collected. Healthcare data included utilization (VA), claims (Medicare), and patient self-report. Costs included VA calculated costs, Medicare dialysis facility reports and reimbursement rates, and patient self-report. Multivariable regression was used to compare costs between patients receiving dialysis at VA versus private sector facilities. Results:The cohort comprised 334 patients: 170 patients in the VA dialysis group and 164 patients in the private sector group. The VA dialysis group had more comorbidities at baseline, outpatient and emergency visits, prescriptions, and longer hospital stays; they also had more conservative anemia management and lower baseline urea reduction ratio (67% vs. 72%; P<0.001), although levels were consistent with guidelines (Kt/V≥1.2). In adjusted analysis, the VA dialysis group had

Depressive Symptoms and Diurnal Salivary Cortisol Patterns Among Female Caregivers of Stroke Survivors

36,431 higher costs than those in the private sector dialysis group (P<0.001). Conclusions:Continued research addressing costs and effectiveness of care across public and private sector settings is critical in informing health policy options for patients with complex chronic illnesses such as ESRD.

Endoscopic carpal tunnel release surgery: Report of patient satisfaction

Informal caregivers of stroke survivors experience elevated chronic stress and are at risk of developing depressive symptoms. The cumulative effects of chronic stress can increase allostatic load and dysregulate biological processes, thus increasing risk of stress-related disease. Stress-induced alterations in the pattern of cortisol secretion vary with respect to stressor onset, intensity, and chronicity. Little is known about the psychoendocrine response to stress in female caregivers of stroke survivors. The purpose of this study was to examine perceived stress, caregiver burden, and the association between caregiver depressive symptoms and diurnal cortisol in 45 females caring for a significant other who experienced a stroke within the past year. Women completed the Center for Epidemiologic Studies Depression Scale (CES-D) and collected saliva for cortisol upon awakening, 30 min postawakening, noon, and bedtime for 2 consecutive days. Results revealed that women had high levels of perceived stress and caregiver burden. In women with CES-D scores ≥ 16, salivary cortisol levels were significantly lower across the day relative to women with CES-D scores < 16. This difference persisted after adjusting for age, number of caregiving hours per week, perceived social support, and quality of sleep. Younger age was associated with more depressive symptoms as well as lower levels of cortisol at awakening and 30 min postawakening. Results demonstrate that the burden of caregiving increases risk of depressive symptoms and hypocortisolism across the day. Hypocortisolism may contribute to increased risk of depressive symptoms as a result of the loss of glucocorticoid attenuation of stress-induced inflammation.

Measurement invariance of the kidney disease and quality of life instrument (KDQOL-SF) across Veterans and non-Veterans

Abstract Recently, a trend has developed to use an endoscope to achieve carpal tunnel release. Proponents of the endoscopic technique believe it has benefits to patients that include minimal incision, minimal pain and scarring, a shortened recovery period and a high level of patient satisfaction. To test these beliefs, a retrospective analysis of the first 42 cases that were done between May 1997 and June 1998 was completed. Endoscopic carpal tunnel release surgery was performed on patients with the classical clinical and neurophysiological findings of carpal tunnel syndrome. The procedure was performed in an outpatient surgery center under primarily local anesthesia and by the same neurosurgeon (RG), who was blind to data analysis. The biportal technique (Instratek Inc., Houston, TX, USA) was used as described by Brown. The first 42 patients (n = 35, seven patients had bilateral surgeries) were sent a survey (modified Health Outcomes Carpal Tunnel Questionnaire, Health Outcomes, Bloomington, MN, USA) that measured a wide spectrum of variables, with a year follow-up. Patient demography indicated wide patient selection. All subjects (100%) had claimed work-related injury. Patient satisfaction was reported in 86%. No or mild incisional pain, night pain, absent tingling, and improved grip strengthening were reported in 100%, 95%, 81%, and 85% respectively. The mean for return to daily activity and work was 14 and 25 days respectively. No recurrent hematoma, infection, or structure injury was reported. Endoscopic carpal tunnel release can be done safely and effectively with excellent self-reports of patient satisfaction. Reduced recovery period and hospitalization with minimal tissue violation and incisional pain can be expected. [Neurol Res 2000; 22: 551-555]

Poststroke Fatigue: Emerging Evidence and Approaches to Management: A Scientific Statement for Healthcare Professionals From the American Heart Association

BackgroundStudies have demonstrated that perceived health-related quality of life (HRQOL) of patients receiving hemodialysis is significantly impaired. Since HRQOL outcome data are often used to compare groups to determine health care effectiveness it is imperative that measures of HRQOL are valid. However, valid HRQOL comparisons between groups can only be made if instrument invariance is demonstrated. The Kidney Disease Quality of Life-Short Form (KDQOL-SF) is a widely used HRQOL measure for patients with chronic kidney disease (CKD) however, it has not been validated in the Veteran population. Therefore, the purpose of this study was to examine the measurement invariance of the KDQOL-SF across Veterans and non-Veterans with CKD.MethodsData for this study were from two large prospective observational studies of patients receiving hemodialysis: 1) Veteran End-Stage Renal Disease Study (VETERAN) (N = 314) and 2) Dialysis Outcomes and Practice Patterns Study (DOPPS) (N = 3,300). Health-related quality of life was measured with the KDQOL-SF, which consists of the SF-36 and the Kidney Disease Component Summary (KDCS). Single-group confirmatory factor analysis was used to evaluate the goodness-of-fit of the hypothesized measurement model for responses to the subscales of the KDCS and SF-36 instruments when analyzed together; and given acceptable goodness-of-fit in each group, multigroup CFA was used to compare the structure of this factor model in the two samples. Pattern of factor loadings (configural invariance), the magnitude of factor loadings (metric invariance), and the magnitude of item intercepts (scalar invariance) were assessed as well as the degree to which factors have the same variances, covariances, and means across groups (structural invariance).ResultsCFA demonstrated that the hypothesized two-factor model (KDCS and SF-36) fit the data of both the Veteran and DOPPS samples well, supporting configural invariance. Multigroup CFA results concerning metric and scalar invariance suggested partial strict invariance for the SF-36, but only weak invariance for the KDCS. Structural invariance was not supported.ConclusionsResults suggest that Veterans may interpret the KDQOL-SF differently than non-Veterans. Further evaluation of measurement invariance of the KDQOL-SF between Veterans and non-Veterans is needed using large, randomly selected samples before comparisons between these two groups using the KDQOL-SF can be done reliably.

Spinal cervical infection: a case report and current update.

At least half of all stroke survivors experience fatigue; thus, it is a common cause of concern for patients, caregivers, and clinicians after stroke. This scientific statement provides an international perspective on the emerging evidence surrounding the incidence, prevalence, quality of life, and complex pathogenesis of poststroke fatigue. Evidence for pharmacological and nonpharmacological interventions for management are reviewed, as well as the effects of poststroke fatigue on both stroke survivors and caregivers.