Nursing Research最新文献

Background: Mitochondrial dysfunction plays a key role in the development of heart failure (HF), including HF with reduced ejection fraction (HFrEF) and HF with preserved ejection fraction (HFpEF). Impaired mitochondrial function negatively affects cardiac function and, subsequently, the health status of patients. However, measuring mitochondrial function in human myocytes is difficult because of the high risk associated with myocardial biopsy. Platelets and leukocytes have functional mitochondria and can potentially serve as a surrogate for myocardial mitochondria. Roles of platelet and leukocyte mitochondrial function in HF have not yet been fully explored.

Objective: We aimed to explore the relationships of platelet and leukocyte mitochondrial function with cardiac function and self-reported health status among obese patients with HF and examine if the relationships vary between HFrEF and HFpEF.

Methods: Forty-five obese patients with HF were recruited. Maximal enzymatic activities (Vmax) of platelet cytochrome c oxidase (COX) and citrate synthase (CS) were assessed. Leukocyte mitochondrial mass, membrane potential, superoxide production, and apoptosis were measured in a subset of the sample. Data on cardiac function were retrieved from electronic health records. Self-reported health status was assessed using the Kansas City Cardiomyopathy Questionnaire (KCCQ). Pearson correlations were performed.

Results: Platelet COX Vmax was negatively correlated with left ventricular end-systolic diameter. Positive correlations of leukocyte mitochondrial mass and superoxide production with left ventricular mass and mass index were observed, respectively. Leukocyte mitochondrial mass and superoxide production also negatively correlated with KCCQ summary scores. These relationships varied between HFrEF and HFpEF.

Discussion: Platelet and leukocyte mitochondrial function was found to significantly correlate with some echocardiographic parameters and KCCQ scores. These findings provided preliminary data to support future research to further explore the potential of using platelets and leukocytes as surrogate biomarkers. Identifying easy-accessible mitochondrial biomarkers will be useful for assessing mitochondrial function to assist with early diagnosis and monitoring the effectiveness of mitochondrial-targeted therapy in HF patients.

Background: Chinese American immigrants have been underrepresented in health research partly due to challenges in recruitment.

Objectives: This study aims to describe recruitment and retention strategies and report adherence in a 7-day observational physical activity study of Chinese American immigrants with prior gestational diabetes during the COVID-19 pandemic.

Methods: Foreign-born Chinese women aged 18-45 years, with a gestational diabetes index pregnancy of 0.5-5 years, who were not pregnant and had no current diabetes diagnosis were recruited. They wore an accelerometer for 7 consecutive days and completed an online survey. Multiple recruitment strategies were used: (a) culturally and linguistically tailored flyers, (b) social media platforms (e.g., WeChat [a popular Chinese platform] and Facebook), (c) near-peer recruitment and snowball sampling, and (d) a study website. Retention strategies included flexible scheduling and accommodation, rapid communications, and incentives. Adherence strategies included a paper diary and/or automated daily text reminders with a daily log for device wearing, daily email reminders for the online survey, close monitoring, and timely problem-solving.

Results: Participants were recruited from 17 states; 108 were enrolled from August 2020 to August 2021. There were 2,479 visits to the study webpage, 194 screening entries, and 149 inquiries about the study. Their mean age was 34.3 years, and the mean length of U.S. stay was 9.2 years. Despite community outreach, participants were mainly recruited from social media (e.g., WeChat). The majority were recruited via near-peer recruitment and snowball sampling. The retention rate was 96.3%; about 99% had valid actigraphy data, and 81.7% wore the device for 7 days. The majority of devices were successfully returned, and the majority completed the online survey on time.

Discussion: We demonstrated the feasibility of recruiting and retaining a geographically diverse sample of Chinese American immigrants with prior gestational diabetes during the COVID-19 pandemic. Recruiting Chinese immigrants via social media (e.g., WeChat) is a viable approach. Nonetheless, more inclusive recruitment strategies are needed to ensure broad representation from diverse socioeconomic groups of immigrants.

Background: Hypertension rates have increased worldwide, with the most significant increase in morbidity and mortality observed among African Americans. Resilience is a potential factor influencing how individuals manage health-related challenges or self-management tasks for hypertension. Research is scarce related to resilience and self-management frameworks in African Americans with hypertension.

Objectives: We aimed to describe a conceptualized resilience framework and preliminary findings of the association among resilience precursors, stress response, hypertension self-management behaviors, and health outcomes in African Americans with hypertension.

Methods: This cross-sectional, descriptive-correlational study included African American adults with hypertension, aged 25 years and older, recruited from an academic university and surrounding urban communities in the Midwest. Participants completed standardized, validated questionnaires to examine the association among resilience precursors, stress response, hypertension self-management behaviors, health-related quality of life (HRQOL), and blood pressure at baseline. Descriptive statistics were used to describe the sample demographic characteristics, whereas Pearson's correlational and multiple regression analyses were conducted to determine the associations among the variables.

Results: African Americans with hypertension (N = 30) were included in this preliminary study, with a mean age of 59.17 years; 66.7% were female. The mean systolic blood pressure was 136 (SD = 16.8) mmHg; the mean diastolic blood pressure was 78.1 (SD = 13) mmHg. Pearson's correlation analysis revealed significant relationships between resilience precursors, stress response, hypertension self-management behaviors and capability, and health outcome components. Multiple regression analysis showed that poor perceived resilience significantly predicted depression. Low dispositional optimism and low perceived resilience were significant predictors of stress. Higher perceived resilience significantly predicted self-efficacy. Perceived stress was negatively and significantly associated with HRQOL. Finally, higher self-efficacy significantly predicted better HRQOL.

Discussion: This study underscores the significant association between resilience, stress, self-management behaviors, and health outcomes in African Americans with hypertension. Further research with larger sample sizes and longitudinal designs is warranted to confirm and expand upon these findings.

Background: Although it is recommended that obstructive sleep apnea (OSA) be screened for using a validated self-report questionnaire in patients experiencing dizziness, there is still a lack of research on the relationship between high risk of OSA and chronic dizziness.

Objectives: The study aimed to examine the relationship between the high risk of OSA and chronic dizziness and investigate how this relationship is affected by sleep duration.

Methods: This cross-sectional study used data from the 8th Korea National Health and Nutrition Examination Survey (2019-2021). Adults aged 40 years or older were included and divided into two groups using the STOP-Bang Questionnaire (SBQ): a high-risk group for OSA or not. Complex samples logistic regression analyses were performed to examine the odds ratios of chronic dizziness based on the national population estimates.

Results: Our findings showed that individuals in the high-risk group for OSA were significantly more likely to experience chronic dizziness. Specifically, among subgroups based on sleep duration, the high-risk group for OSA with a short sleep duration of ≤5 hours demonstrated the highest odds of chronic dizziness, showing a significantly 2.48-fold increased likelihood compared to the non-high risk for OSA with a sleep duration of 5-9 hours.

Discussion: The SBQ can be beneficial when other causes do not explain chronic dizziness, helping to rule in the possibility of OSA. Educating individuals suspected of having OSA or who have been diagnosed with OSA about the importance of adequate sleep duration may help reduce the risk of chronic dizziness.

Background: Research involvement and engagement is a vital aspect of nursing practice. However, research in dementia care remains limited compared to research focused on finding a cure, presenting a significant gap that specialist dementia nurses (Admiral Nurses) can help bridge by participating in research themselves and facilitating recruitment to research.

Objectives: This study aimed to assess the research involvement and support needs of Admiral Nurses and identify factors affecting their participation in research. This research is particularly timely as Dementia UK has launched its first research strategy, which necessitates strengthening research capacity within Admiral Nursing.

Methods: We used a mixed methods convergent parallel synthesis design, simultaneously collecting quantitative and qualitative data. An online survey was conducted in January 2023, targeting current Admiral Nurses across the United Kingdom. The survey included questions addressing demographics, research experience, goals, barriers, facilitators, and support needs. Data analysis involved descriptive statistics, frequencies, univariate analyses, and thematic analysis.

Results: A positive relationship was found between the highest level of academic achievement and current or previous research involvement, as well as interest in becoming involved in research in the future. Although most nurses recognized the importance of research, only half reported current or past research involvement, indicating a need for increased support. A lack of access and opportunities for peer discussion hindered engagement with research findings. Time constraints, lack of support, and low confidence were major barriers to research involvement. Support needs varied but included mentorship, coaching, and the potential for a community of practice for research.

Discussion: This survey of Admiral Nurses sheds light on their research involvement, support needs, and barriers to participation. Recognizing the significance of research while identifying challenges and support requirements is crucial for enhancing research capacity among these specialized nurses. This study contributes valuable insights into the world of specialist dementia nursing and lays the foundation for future strategies to increase research engagement in this field.

Background: To date, there is little understanding of how caring during advanced cancer can be a transformational experience for personal becoming for family caregivers (FCGs). FCGs experience personal becoming as they create their own meaning of health and illness and choose patterns relating to the self-identity of the past while reaching forward into the unknowns. Gaining greater insight into a potentially positive aspect of cancer caregiving can contribute to FCG well-being and quality of life.

Objectives: This article identifies I-Poems within cancer caregiver narratives and explores them for themes of personal becoming. The narrative environment created space for FCGs to construct and share their voices; at the same time, the analytic method of poetic inquiry provided the voice of the FCGs to be seen, heard, and contextually explored.

Methods: As a secondary analysis, we used five cancer caregiver narrative texts obtained from the primary study to create individual I-Poems. Each of the I-statements within the cancer caregiver narrative texts was lifted and repositioned into a poem format while retaining the chronological order and voice of the participant. We then explored the I-Poems for converging themes of personal becoming as emerged from the primary narrative-thematic analysis.

Results: I-Poems were created from each of the five participant caregivers' narratives and then explored for themes of personal becoming. Each of the participant stories is briefly introduced, followed by their I-Poem. We found that the I-Poems converged with emergent themes and provided a first-person representation of their caring journey and transformation of being.

Discussion: I-Poems are a postmodern form of poetic inquiry that can be used alongside thematic analysis to explore personal meaning of caring for someone with advanced cancer and how FCGs experience personal transformation of self. Although we found I-Poems to be a meaningful and useful form of analysis for some narrative data, we propose an evolved genre of poetic inquiry-We-Poems-to be used in dyadic nursing research and with FCGs who are in partnered relationships.