This literature critique examines two research studies on heart failure care: one qualitative study investigating caregiver decision-making processes and one mixed-method study evaluating telemonitoring effectiveness. Both papers address the complexity of managing heart failure, a leading cause of hospitalization in adults over 65. The review analyzes the research questions, methodologies, study designs, and potential biases in each article, providing insight into how nursing research approaches both the psychological and clinical dimensions of heart failure management.
The two articles in this literature review examine different aspects of care for patients diagnosed with some stage of heart failure (HF). Heart failure is one of the most prevalent and debilitating diseases worldwide and is the leading cause of hospitalizations for people older than 65 years (Schwarz, Mion, Hudock & Litman, 2007). These two articles explore ways of monitoring patients and the decision-making processes involved in the care of HF patients, providing complementary perspectives on the clinical and psychosocial dimensions of heart failure management.
The purpose of the first research study was to determine the decision-making process of caregivers of family members with heart failure. The authors sought to examine the different factors that influence decisions and the pathway that caregivers follow in reaching decisions. The research question, explicitly stated by the authors, is: How do caregivers of family members with HF make decisions?
The study design is embedded in the theoretical framework that heart failure is a disease that has emotional implications for the entire family and generates substantial stress. The authors based their study design on a three-stage theory presented by Crist, Garcia-Smith, and Phillips (2006) that describes the decision process as a combination of "taking care of our own," "acknowledging options," and "becoming empowered" (Sanford, Townsend-Rocchicciolli, Horigan & Hall, 2011). This theoretical grounding ensures that the research addresses not only clinical care decisions but also the family dynamics and emotional dimensions inherent to caregiving.
The authors performed a qualitative study using an interview-style data collection method. Twenty participants were recruited from a variety of care facilities over a 12-month period. Caregivers of patients from each of the four stages of the HF classification were recruited to ensure data variation. Demographic data of the caregivers were collected, and informal interviews were conducted around a series of targeted questions concerning the decision-making process.
Interviews were audio-recorded, transcribed verbatim following the interview, and analyzed for the theoretical categories involved in decision-making. The journal Research & Theory for Nursing Practice has an editorial board, and one may therefore assume that the research paper has been peer reviewed. The authors have no apparent financial gain from the conclusions of the study, which strengthens the credibility of their findings.
However, potential limitations exist in this study design. The individual interview style of different interviewers might have introduced bias by encouraging caregivers to share more or less information. This source of bias could affect the consistency and comparability of data across participants, particularly in a qualitative study where the researcher's interpersonal approach significantly influences participant responses.
The purpose of the second study was to examine the effectiveness of telemonitoring of HF patients by an advanced practice nurse on reducing hospital readmissions, emergency department visits, and the time between discharge and readmission. The authors also examined whether telemonitoring had an effect on depressive symptomatology, quality of life, caregiver mastery, and social support for patients. The primary outcome or research question is: Does telemonitoring reduce the time between patient discharge and readmission to the hospital?
The study design was guided by the research conclusion that HF patients have a high prevalence of depressive symptoms, which are linked to a higher incidence of comorbidities and increased hospital readmissions. It is further suggested that patients with HF report higher quality of life with intensive post-discharge collaboration with their healthcare provider. This theoretical foundation connects both psychological and clinical outcomes to the intervention being tested.
This mixed-method study was conducted at a 537-bed tertiary teaching hospital with patient/caregiver dyads in which the patient was over 65 years old, had an HF classification of Stage II or higher, and were functionally impaired in at least one activity of daily living. Qualified participants were randomized to usual post-hospital discharge care or to usual care with a telemonitoring scale.
Participants were interviewed 10 days following discharge and again 90 days later by trained registered nurses. Measures collected included demographic information, time to an unplanned hospital readmission for HF symptoms within 3 months post-hospital discharge, physiological health indicators, functional status, depressive symptomatology, and quality of life. The authors describe the design of the study in a detailed and comprehensive manner, providing specificity that supports reproducibility.
A disclaimer from the editors indicates that this study has been peer reviewed. The research was supported by an NIH grant, but there appears to be no financial benefit to the authors that could be derived from the results. The authors take all possible precautions to eliminate biases in their study design. For instance, they consistently perform inter-rater reliability testing to ensure that interviewers do not provide conflicting conclusions, demonstrating rigorous attention to methodological quality and consistency across data collectors.
These two studies represent complementary approaches to understanding heart failure care. The first study provides in-depth qualitative insight into the lived experiences and decision-making processes of family caregivers, while the second offers quantitative evidence regarding the effectiveness of a specific clinical intervention. Together, they illustrate how comprehensive heart failure management requires attention to both the emotional and clinical dimensions of care, supported by rigorous research design and careful attention to potential sources of bias.
"Synthesis of two complementary nursing research approaches"
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