Health care worker perceptions toward computerized clinical decision support tools for Clostridium difficile infection reduction: A qualitative study at 2 hospitals.

BACKGROUND: Clostridium difficile infection (CDI) is associated with significant morbidity and mortality. Computerized clinical decision support (CCDS) tools can aid process improvement in infection prevention and antibiotic stewardship, but implementation and health care workers (HCWs) uptake of these tools is often variable. The objective of this study was to describe HCWs' perceptions of barriers and facilitators related to uptake of CCDS tools as part of a CDI reduction bundle. METHODS: We conducted a qualitative study among HCWs at 2 acute care hospitals in Maryland. Semi-structured interviews and structured surveys were completed by HCWs to evaluate their perception to CCDS tools at 2 different stages: predevelopment and preimplementation. Emergent themes and patterns in the data were identified and condensed. RESULTS: Gaps in CDI-related knowledge and in communication between HCWs were identified throughout the evaluation. HCWs agreed on the potential of the tools to improve CDI diagnosis, prevention, and control. An important barrier for uptake was the perceived loss of autonomy and clinical judgment, whereas standardization and error reduction were perceived advantages. CONCLUSIONS: These observations shaped the development and implementation of the CDI reduction bundle. Qualitative findings can provide valuable contextual information during the development stages of CCDS tools in infection prevention and antibiotic stewardship.

The Effects of an Online Theory-Based Bone Health Program for Older Adults.

An estimated 10 million Americans age 50 and older have osteoporosis, and many experience associated fractures. Although several interventions have been shown to be effective in preventing osteoporosis, their impact on bone health among older adults was limited. The aim of this study was, therefore, to examine the effects of a theory-based online bone health program (Bone Power program) for a large number of older adults. The 8-week program included learning modules, discussion boards, and other resources. Participants ( N = 866; M age = 62.5 years) were recruited online and randomized into a Bone Power or control group. At the end of the intervention, the Bone Power group showed significantly greater improvement over the control group in osteoporosis knowledge, self-efficacy/outcome expectations for calcium intake and exercise, and calcium intake and exercise behaviors. This study's findings suggest that online health programs can be effective in improving older adults' knowledge, beliefs, and health behaviors.

Dissemination of a theory-based online bone health program: Two intervention approaches.

With the increasing nationwide emphasis on eHealth, there has been a rapid growth in the use of the Internet to deliver health promotion interventions. Although there has been a great deal of research in this field, little information is available regarding the methodologies to develop and implement effective online interventions. This article describes two social cognitive theory-based online health behavior interventions used in a large-scale dissemination study (N = 866), their implementation processes, and the lessons learned during the implementation processes. The two interventions were a short-term (8-week) intensive online Bone Power program and a longer term (12-month) Bone Power Plus program, including the Bone Power program followed by a 10-month online booster intervention (biweekly eHealth newsletters). This study used a small-group approach (32 intervention groups), and to effectively manage those groups, an eLearning management program was used as an upper layer of the Web intervention. Both interventions were implemented successfully with high retention rates (80.7% at 18 months). The theory-based approaches and the online infrastructure used in this study showed a promising potential as an effective platform for online behavior studies. Further replication studies with different samples and settings are needed to validate the utility of this intervention structure.

Implementation of a Participant-Centered Weight Management Program for Older Nurses: A Feasibility Study.

American nurses (3.06 million) are at high risk for being overweight, as the majority are post-menopausal women (93.3% female; mean age 47). Studies have indicated that more than half of all nurses are either overweight or obese. This fact is of concern because nurses often lead major health promotion efforts. The aim of this study was to examine the feasibility of a novel participant-centered weight management program (PCWM) among nurses. The participant-centered (P-C) theoretical framework used originated from the field of usability engineering (i.e., user-centered design). Study methods included a single group pre-test/post-test design (baseline, eight weeks, three months) and an intervention consisting of face-to-face education sessions, technology-augmented exercise programs, and an eHealth portal. The results demonstrated a significant decrease in body weight, increased fruit and vegetable consumption, and increased exercise at eight weeks. In our discussion of this study, we note that although the intervention effects decreased at three months, these results are promising, considering that the intervention used was not regimented and relied only on nurses' activation of their planned health behaviors. The major limitation of the study was the small sample size recruited from one large community hospital. Further research is needed to improve the sustainability of the program.

Nurses' self-care behaviors related to weight and stress.

BACKGROUND: Considerable research on preventive health care behaviors has been conducted in different segments of the population. Although nurses are the largest group of direct health care providers (3 million), little is known about their preventive health care behaviors. As the average age of nurses working in the United States (US) increases (mean age 47 years), maintaining their health to ensure they can continue to provide optimal health care to others becomes a greater priority. METHOD: This descriptive online study examined registered nurses' dietary and exercise practices, weight status, stress levels, and preferred preventive health strategies using a sample of nurses recruited from a community-based, urban teaching hospital (n = 183; mean age 47 ± 11.3 years). FINDINGS: The majority of participants (72.2%, n = 122) reported a lack of exercise, and more than half (53.8%, n = 91) had an irregular meal pattern. The average body mass index (BMI) was 28.3 ± 6.8, and 59.2% (n = 100) were either overweight (n = 47) or obese (n = 53). BMI had a significant inverse relationship with having a regular meal schedule and the amount of time spent exercising. Participants who reported greater stress had more irregular meal schedules. The most frequently used stress-release method was eating (n = 32), followed by exercise (n = 31). DISCUSSION: Nurses are fully aware of measures that should be taken for healthy living. Their knowledge, however, has not been well translated into their own self-care. As nursing shortages loom, maintaining the health of the aging nursing workforce is essential to retention. Further research is needed to identify factors that may motivate nurses to better care for themselves and measures that can be implemented by employers to initiate and sustain these preventive health care behaviors.

Pre-clinical myocardial metabolic alterations in chronic kidney disease.

UNLABELLED: The risk for cardiovascular events conferred by decreased renal function is curvilinear with exponentially greater increases in risk as estimated glomerular filtration rate (eGFR) declines. In 13 non-diabetic pre-dialysis chronic kidney disease (CKD) patients, we employed quantitative F-18 fluorodeoxyglucose (FDG) positron emission tomography (PET) as a means to measure myocardial metabolic changes. METHODS: Dynamic cardiac FDG PET images were acquired after 6 h fasting and glucose loading. Corrections for attenuation, scatter, randoms, dead time and decay were applied to the PET data and myocardial glucose utilization (MGU) was calculated using the Patlak method in conjunction with standardized myocardial regions of interest and an image-derived input function (left atrium). MGU was compared with eGFR based on a serum creatinine drawn within 2 weeks of the study date. RESULTS: MGU was relatively uniform between the myocardial sectors (coefficient of variation = 16.2 +/- 6.8%) within each patient. Between patients, whole myocardium MGU varied considerably with a range of 37.3-156.2 micromol/min/100 g and a mean of 68.9 +/- 38.3 mumol/min/ 100 g. eGFR ranged from 11-89 ml/min/1.73 m(2) with a mean of 42.8 +/- 26.9 ml/min/1.73 m(2). There was an inverse correlation between whole myocardium MGU and eGFR (Spearman's rho correlation = -0.615, p = 0.025). In multivariate analysis, the relationship between MGU and eGFR was sustained with adjustment for age, race and gender (adjusted beta = -1.56 +/- 0.48, p = 0.01). There was no correlation between cardiac workload and eGFR (p = NS). CONCLUSIONS: A significant inverse correlation between MGU and eGFR is supportive of the hypothesis that CKD is associated with myocardial metabolic changes, which could not be attributed to demographic factors or cardiac workload. Dynamic FDG PET could provide a sensitive, non-invasive, quantitative tool for investigating pre-clinical myocardial abnormalities in patients with CKD.

CKD as an underrecognized threat to patient safety.

Chronic kidney disease (CKD) is common, but underrecognized, in patients in the health care system, where improving patient safety is a high priority. Poor disease recognition and several other features of CKD make it a high-risk condition for adverse safety events. In this review, we discuss the unique attributes of CKD that make it a high-risk condition for patient safety mishaps. We point out that adverse safety events in this disease have the potential to contribute to disease progression; namely, accelerated loss of kidney function and increased incidence of end-stage renal disease. We also propose a framework in which to consider patient safety in CKD, highlighting the need for disease-specific safety indicators that reflect unsafe practices in the treatment of this disease. Finally, we discuss the hypothesis that increased recognition of CKD will reduce disease-specific safety events and in this way decrease the likelihood of adverse outcomes, including an accelerated rate of kidney function loss and increased incidence of end-stage renal disease.

Cigarette smoking and incident chronic kidney disease: a systematic review.

BACKGROUND: Several studies have examined the role of cigarette smoking in the development of renal disease in human populations. However, there have been no systematic reviews on the evidence linking smoking with incident renal disease. METHODS: We performed an evidence-based evaluation of peer-reviewed research published during 1966-2005, from a search of five databases, including Ovid MEDLINE and EMBASE. RESULTS: Of the 28 studies that were reviewed, 11 were excluded from the final analysis due to poor methodological quality (n = 6), no reported risk estimate for the association between smoking and kidney disease (n = 3), inability to find a Japanese translator (n = 1), and duplicate cohort (n = 1). Seventeen studies were included in the final analysis; seven studies found an overall significant association between smoking and incident chronic kidney disease, and three studies found a significantly increased risk of chronic kidney disease in current smokers that was gender and/or dose related. An increased risk of developing chronic kidney disease among smokers was significantly associated with male gender (relative risk 2.4, 95% confidence interval 1.2-4.5), >20 cigarettes smoked/day (odds ratio 1.51, 95% confidence interval 1.06-2.15, and relative risk 2.3, 95% confidence interval 1.2-4.3), and smoking >40 years (odds ratio 1.45, 95% confidence interval 1.00-2.09). A pooled estimate of the relative risk (meta-analysis) was deemed inappropriate due to the heterogeneity in methodologies utilized by the different studies. CONCLUSIONS: This comprehensive review reveals overall evidence for current cigarette smoking as a risk factor for incident chronic kidney disease. Further investigation is needed to more carefully examine the strength of the association between cigarette smoking and incident kidney disease.

Urinary cotinine as an objective measure of cigarette smoking in chronic kidney disease.

BACKGROUND: Smoking is a modifiable behaviour that may hasten the progression of chronic kidney disease (CKD). Cotinine, a nicotine metabolite, is measurable in body fluids, including urine, and can be utilized as an objective measure of smoking exposure. Its use has not been examined in the CKD population. METHODS: In this cross-sectional study, we evaluated use of 24-h urinary cotinine excretion (Ucot) as a quantitative index of smoking exposure in a CKD population. Methods of comparison included self-report and expired air carbon monoxide (eCO) as standard measures of smoking exposure. Assessments of kidney function included estimated glomerular filtration rate (eGFR) and 24-h urinary protein (Uprot) excretion. RESULTS: Sixty-one patients were enrolled, of whom 12 were excluded for incomplete urine collections. Of the remaining, 77% were active current smokers (mean cigarettes smoked: 12+/-7 per day). The mean eGFR was 47+/-25 ml/min/1.73 m2 with no significant differences among non-smokers. The mean eCO and Ucot were significantly higher in smokers vs non-smokers (12.5+/-6.9 ppm and 1.3+/-1.1 ppm and 1685.87+/-922.77 microg/d and 134.18+/-445.03 microg/d, respectively, P<0.001 for both). Ucot was weakly correlated with eGFR (R=0.40, P=0.005), but not with Uprot (R=0.09, P=0.54). In multivariate analyses, daily cigarette consumption and eCO were the only significant predictors of Ucot (P<0.05 for both). CONCLUSION: In this CKD cohort, Ucot is correlated with commonly used measures of smoking exposure and is minimally influenced by underlying renal function, demonstrating its potential utility in clinical trials examining change in smoking behaviour and effects on renal injury.

An in-depth review of the evidence linking dietary salt intake and progression of chronic kidney disease.

BACKGROUND: Dietary salt has been debated for decades as having a potentially deleterious influence on human health. OBJECTIVES: To determine the quality of research and the relationship between dietary salt and markers for progression of kidney disease. METHODS: Data sources included 7 electronic databases comprehensively searched for literature published between January 1, 1966, and August 31, 2004, and a manual search of bibliographies of relevant papers, and consultation with experts in the field. Differences between the paired reviewers were reconciled through consensus or by a content expert. RESULTS: Sixteen studies met the inclusion-exclusion criteria and were identified for review; however, the study methodologies were extremely heterogeneous. Conclusions commonly cited in the studies include: variations in salt consumption are directly correlated with albuminuria, and an increase in salt consumption is associated with an acute increase in glomerular filtration rate, while a reduction in salt consumption may slow the rate of renal function loss. CONCLUSIONS: The available published information, while highly variable in methods and quality, suggests that variations in dietary salt consumption directly influence albuminuria, with increasing salt intake associated with worsening albuminuria; however, results are inadequate and conflicting on the effects of dietary salt consumption on renal function, especially over a prolonged time. There was no evidence of a detrimental effect of reduced salt intake. On the other hand, there is consistent experimental evidence to link increased salt exposure with kidney tissue injury. On the basis of these data, we believe that dietary salt restriction should be considered in patients with chronic kidney disease.

Racial variations in erythropoietic response to epoetin alfa in chronic kidney disease and the impact of smoking.

BACKGROUND: Of the known risk factors for chronic kidney disease (CKD), race represents one that is non-modifiable, while smoking is another that is modifiable. Moreover, smoking tends to increase red blood cell mass, which is frequently diminished in CKD. No studies have examined the interplay of race with smoking on anaemia management in patients with CKD. METHODS: We examined the effects of smoking on anaemia management in CKD and its variation across race in a previously conducted study of CKD patients (n = 1312) initiated on weekly epoetin alfa and followed for 16 weeks. Smoking status was classified as current vs non-smoker. Race was classified as African-American vs non-African-American. Changes in estimated glomerular filtration rate, urinary albumin excretion, and erythropoietic response to weekly epoetin alfa were examined. RESULTS: Overall, African-Americans had lower baseline Hb than non-African-Americans. African-American non-smokers did not mount an erythropoetic response comparable to other non-smokers by final Hb (mean 11.29 g/dl vs 11.64 g/dl, P<0.001) or week 16 Hb (mean 11.61 g/dl vs 11.86 g/dl, P = 0.02). However, African-American smokers had a more significant erythropoietic response than their non-smoking counterparts and were comparable to their smoking non-African-American counterparts. There was no effect of smoking on renal function or urinary protein excretion over the course of the study. CONCLUSION: African-American non-smokers exhibit a diminished response to standard epoetin alfa dosing than non-smokers in other races. However, African-American smokers with CKD exhibit a response to epoetin alfa comparable to patients of other races. These findings may have implications for African-Americans who have CKD-related anaemia.

Does dietary salt increase the risk for progression of kidney disease?

Due to the inconsistent observations and suboptimal quality of the study designs, there is insufficient clinical evidence to suggest that increased salt intake may adversely modify the rate of progression of kidney disease. However, there is experimental evidence to suggest a link between increased salt exposure and kidney tissue injury. Further clinical trials are needed to evaluate the relationship between dietary salt and risk for progression of chronic kidney disease.

Impact of converting to powder-free gloves. Decreasing the symptoms of latex exposure in operating room personnel.

This study examined health care worker satisfaction with the use of non-powdered natural rubber latex (NRL) surgical gloves to determine the impact of non-powdered NRL gloves on the NRL sensitization of operating room personnel. The study used a 1-year longitudinal design to obtain recall information from employees about their NRL exposure. Additionally, a survey was completed by participants related to their satisfaction with non-powdered NRL gloves. Informed consent was obtained from 103 employees. After conversion to an operating room using non-powdered NRL, there was a significant decrease in reported symptoms with NRL exposure (42% pre- and 29% post-conversion, Fisher's exact, two-tailed, p = .0001). This study demonstrated that the conversion to non-powdered low-protein NRL gloves resulted in decreased symptoms because of NRL exposure.