BACKGROUND:
This study used a device (DDD implantable cardioverter defibrillator [ICD]) capable of delivering pacing and shock therapies to restore normal sinus rhythm in patients with atrial tachycardias or atrial fibrillation (AF). The purpose of this study was to assess the effect of the device on patient-perceived, health-related quality of life (QOL).
METHODS:
The DDD ICD was implanted in 267 patients with drug refractory, symptomatic AF from 45 centers across Europe, the United States, and Canada. Patients completed self-reported, validated QOL assessments at baseline and at 3- and 6-month follow-up visits (The Medical Outcomes Short Form 36 [SF-36] and the Symptom Checklist [SCL]).
RESULTS:
The mean age of the study group was 62 +/- 12 years, and 73% of the patients were male. A total of 150 patients completed SF-36 assessments, and 138 patients completed SCL assessments at all 3 times. Baseline scores were more impaired (P <.05) on most SF-36 scales compared with norms for a general population, but were similar to a comparison group of patients with AF who were referred to tertiary care centers. The role-physical, physical functioning, vitality, mental health, and social functioning scales all improved significantly with time (all P <.04). Similarly, symptom frequency and severity (SCL) also improved significantly from baseline to 6 months (both P <.01). Shock therapy was delivered in 86 of the 150 patients (57%) with complete SF-36 evaluations. There was no evidence that receiving shocks decreased the relative improvement in QOL associated with implantation of the device.
CONCLUSIONS:
In a 6-month period, QOL improves after implantation of a DDD ICD with atrial shock and pacing therapies. These improvements were not attenuated by receipt of shocks.
Introduction: Students aged 16-24 years are at greatest risk for interpersonal violence and the resulting short and long-term health consequences. Electronic survey methodology is well suited for research related to interpersonal violence. Yet methodological questions remain about best practices in using electronic surveys. While researchers often indicate that potential participants receive multiple emails as reminders to complete the survey, little mention is made of the sender of the recruitment email. The purpose of this analysis is to describe the response rates from three violence-focused research studies when the recruitment emails are sent from a campus office, researcher or survey sampling firm. Methods: Three violence-focused studies were conducted about interpersonal violence among college students in the United States. Seven universities and a survey sampling firm were used to recruit potential participants to complete an electronic survey. The sender of the recruitment emails varied within and across the each of the studies depending on institutional review boards and university protocols. Results: An overall response rate of 30% was noted for the 3 studies. Universities in which researcherinitiated recruitment emails were used had higher response rates compared to universities where campus officials sent the recruitment emails. Researchers found lower response rates to electronic surveys at Historically Black Colleges or Universities and that other methods were needed to improve response rates. Conclusion: The sender of recruitment emails for electronic surveys may be an important factor in response rates for violence-focused research. For researchers identification of best practices for survey methodology is needed to promote accurate disclosure and increase response rates.
The objective of this study was to compare a short dietary screener developed to assess diet quality with interviewer-administered telephone 24-hour dietary recalls in a population of pregnant Northern Plains (NP) American Indian women. Participants were recruited from NP clinical sites of the Prenatal Alcohol and SIDS and Stillbirth (PASS) Network, as part of a large, prospective, multidisciplinary study. Prenatal PASS participants who enrolled prior to 24 weeks gestation were eligible to participate. Repeated 24-hour dietary recalls were collected using the Nutrition Data System for Research (NDSR) software and a short dietary screener was administered intended to capture usual dietary intake during pregnancy. The available recalls were averaged across days for analysis. Items were grouped from the recalls to match the food group data estimates for the screener (e.g., total vegetables, total fruit, total dairy, total and whole grains). Deattenuated Pearson correlation coefficients were calculated between the two data sources after correcting for the within-person variation in the 24-hour recall data. A total of 164 eligible women completed the screener and at least two 24-hour dietary recalls and were included in the analyses. Pearson deattenuated correlation coefficients between the diet screener and the dietary recalls for the majority of food groups were 0.40 or higher. This short diet screener to assess usual diet appears to be a valid instrument for use in evaluating diet quality among pregnant American Indian women.
Background
Race- and gender- specific epidemiology of incident heart failure (HF) in a contemporary elderly cohort is not well described.
Methods
We studied 2934 participants without HF enrolled in the Health ABC Study (age 73.6±2.9 years, 47.9% men, 58.6% white, 41.4% black) and assessed incidence of HF, population attributable risk (PAR) of independent risk factors for HF, and outcomes of incident HF.
Results
During a median follow-up of 7.1 years, 258 (8.8%) participants developed HF (13.6/1000 person-years). Men and blacks were more likely to develop HF. No significant sex-based differences were observed in risk factors. Coronary heart disease (whites: PAR 23.9%, blacks: PAR 29.5%) and uncontrolled blood pressure (whites: PAR 21.3%, blacks: PAR 30.1%) carried the highest PAR in both races. In blacks, 6 out of 8 risk factors assessed (coronary heart disease, uncontrolled blood pressure, left ventricular hypertrophy, reduced glomerular filtration rate, smoking, and increased heart rate) had >5% higher PAR compared to whites, leading to a higher overall proportion of HF attributable to modifiable risk factors in blacks vs. whites (67.8% vs. 48.9%). Participants who developed HF had a higher annual mortality (18.0% vs. 2.7%). No racial difference in survival after HF was noted; however, rehospitalization rates were higher in blacks (62.1 vs. 30.3/100 person-years, P<.001).
Conclusions
Incident HF is common in the elderly; a large proportion of HF risk was attributed to modifiable risk factors. Racial differences in risk factors for HF and in hospitalization rates after HF need to be accounted for prevention and treatment efforts.
Objective: (i) To compare the prevalence and severity of depressive symptoms between men and women enrolled in a large heart failure (HF) registry. (ii) To determine gender differences in predictors of depressive symptoms from demographic, behavioral, clinical, and psychosocial factors in HF patients. Methods: In 622 HF patients (70% male, 61 ± 13 years, 59% NYHA class III/IV), depressive symptoms were assessed by the Patient Health Questionnaire (PHQ-9). Potential correlates were age, ethnicity, education, marital and financial status, smoking, exercise, body mass index (BMI), HF etiology, NYHA class, comorbidities, functional capacity, anxiety, and perceived control. To identify gender-specific correlates of depressive symptoms, separate logistic regression models were built by gender. Results: Correlates of depressive symptoms in men were financial status (p = 0.027), NYHA (p = 0.001); functional capacity (p < 0.001); health perception (p = 0.043); perceived control (p = 0.002) and anxiety (p < 0.001). Correlates of depressive symptoms in women were BMI (p = 0.003); perceived control (p = 0.013) and anxiety (p < 0.001). Conclusions: In HF patients, lowering depressive symptoms may require gender-specific interventions focusing on weight management in women and improving perceived functional capacity in men. Both men and women with HF may benefit from anxiety reduction and increased control.
Vascular endothelial dysfunction is associated with increased risk for adverse cardiovascular (CV) events. However, less is known about sex differences in the endothelial function of untreated hypertensive individuals. The purpose of this study was to assess endothelial function in women and men with untreated hypertension. Ninety participants (35 women, 55 men), aged 40 to 60years (mean age, 46.1±8.2years), with untreated stage 1 hypertension (systolic blood pressure 140-159mmHg and/or diastolic blood pressure 90-99mmHg) underwent brachial artery endothelial-dependent flow-mediated dilation and endothelial-independent glyceryl trinitrate dilation. Women had a smaller flow-mediated dilation response than men (adjusted mean±standard error of the mean [SEM]; 1.8±0.6% vs 3.9±0.4%, P=.036), adjusting for baseline arterial diameter (P=.004), age (P=.596), ethnicity (P=.496), log shear stress ratio (P<.001), body mass index (P=.009), 24-hour diastolic blood pressure (P=.169), high-density lipoprotein (P=.225), log creatinine (P=.927), and log physical activity (P=.682). Glyceryl trinitrate dilation did not differ by sex in adjusted models. Women between the ages of 40 and 60years with untreated stage 1 hypertension exhibited a greater impairment of endothelial function compared with their male counterparts. These findings raise the possibility that female sex may impart a greater risk of CV events in patients with untreated stage 1 hypertension potentially due to poorer endothelial function.
Background:
Proteolytic degradation of epithelial sodium channels (ENaC) assists in regulating net salt and water balance in lung epithelia.
Results:
H2O2 increases surface expression of α-ENaC, transepithelial Na transport, and alveolar fluid clearance via redox-sensitive Nedd8.
Conclusion:
Redox-sensitive Nedd8 is involved in the ubiquitination of lung ENaC.
Significance:
Understanding ROS-mediated signaling of lung ENaC is crucial for understanding pulmonary physiology and pathology.
Purpose
To identify predictors of human papillomavirus (HPV) vaccination among rural African American families.
Design
Cross-sectional descriptive study in schools in three rural counties in southeastern United States. The sample consisted of African American parents or caregivers with children 9 to 13 years of age who attended elementary or middle school in 2010–2011.
Methods
Using an anonymous, 26-item survey, we collected descriptive data during parent-teacher events from African American parents with children in elementary or middle school. The main outcome was measured as a response of “yes” to the statement “I have or will vaccinate my child with the HPV vaccine.” In addition, composite scores of knowledge and positive attitudes and beliefs were compared. No interventions were conducted.
Findings
We identified predictors of HPV vaccination and found that religious affiliation had a correlation with vaccinating or planning to vaccinate a child.
Conclusions
Results indicate a need for further research on the role of local culture, including religion and faith, in rural African Americans’ decisions about giving their children the HPV vaccination.
Clinical Relevance
This study emphasizes the importance of understanding rural African American parents’ knowledge, attitudes, and spiritual beliefs when designing health education programs and public health interventions to increase HPV vaccination uptake among African American boys and girls living in rural areas.
Social subordination in macaque females is a known chronic stressor and previous studies have shown that socially subordinate female rhesus monkeys consume fewer kilocalories than dominant animals when a typical laboratory chow diet is available. However, in a rich dietary environment that provides access to chow in combination with a more palatable diet (i.e. high in fat and refined sugar), subordinate animals consume significantly more daily kilocalories than dominant conspecifics. Substantial literature is available supporting the role of stress hormone signals in shaping dietary preferences and promoting the consumption of palatable, energy-dense foods. The present study was conducted using stable groups of adult female rhesus monkeys to test the hypothesis that pharmacological treatment with a brain penetrable corticotrophin-releasing factor type 1 receptor (CRF1) antagonist would attenuate the stress-induced consumption of a palatable diet among subordinate animals in a rich dietary environment but would be without effect in dominant females. The results show that administration of the CRF1 receptor antagonist significantly reduced daily caloric intake of both available diets among subordinate females compared to dominant females. Importantly, multiple regression analyses showed that the attenuation in caloric intake in response to Antalarmin (Sigma-Aldrich, St Louis, MO, USA) was significantly predicted by the frequency of submissive and aggressive behaviour emitted by females, independent of social status. Taken together, the findings support the involvement of activation of CRF1 receptors in the stress-induced consumption of excess calories in a rich dietary environment and also support the growing literature concerning the importance of CRF for sustaining emotional feeding.
Background and Purpose: The Student Human Papillomavirus Survey (SHPVS) was developed to examine students' perceived benefits or barriers to human papillomavirus (HPV) vaccination. Methods: Survey development included (a) 2-phase integrative literature reviews; (b) draft of survey items based on the literature; (c) critique of survey items by young adults, nursing and psychology faculty, and health care providers; and (d) pilot testing. The psychometric properties of the SHPVS were evaluated using classical item analysis and exploratory factor analysis (EFA) among a sample of 527 university students' ages 18-24 years. Results: The estimated Cronbach's alpha for the SHPVS is .74. Conclusions: The SHPVS is a measure of young adults HPV perceived vulnerability, perceived severity, perceived barriers, and perceived benefits of HPV vaccination.