Ventricular Assist Device Care Research Articles

Multidisciplinary Stroke Pathway for Children Supported With Ventricular Assist Devices.

Mechanical circulatory support (MCS), including ventricular assist device (VAD) support, is a leading cause of stroke in children; however, existing pediatric stroke recommendations do not apply to many pediatric VAD patients. We sought to develop a multidisciplinary pathway to improve timely and effective acute stroke care and examine the early performance of the pathway in expediting stroke care. Stakeholders from pediatric heart failure, cardiac intensive care, neurology, interventional radiology, neuroradiology, neurosurgery, pharmacy, and adult VAD care convened at Stanford University in August 2017 to discuss the challenges of providing high-quality acute stroke care to children on VAD support, and to develop multidisciplinary acute stroke pathways. Stakeholders identified multiple barriers to providing timely acute stroke care to pediatric VAD patients. These include delayed recognition of stroke, and lack of clarity related to the optimal imaging technique, when to emergently reverse antithrombotic therapy (AT), pediatric indications for thrombectomy and cranial decompression, and strategies to avoid unnecessary serial CTS. Four stroke pathways were created including evaluation and management of the pediatric patient with (1) an acute neurologic change before an imaging diagnosis; (2) an arterial ischemic stroke (AIS); (3) an intracerebral hemorrhage (ICH); and (4) a subdural hematoma (SDH). With the implementation of the stroke pathway, the median time-to-first-CT image decreased by 43 minutes from 66 to 23 minutes ( P < 0.001) while the proportion with a CT within 30 minutes increased from 0% to 67% ( P < 0.001). Despite a variety of challenges, multidisciplinary consensus can be achieved on a rapid stroke management pathway for children on VAD support that addresses important barriers to timely stroke care. Although too few stoke events occurred to differentiate clinical outcomes, the time-to-first-CT image was significantly shorter after pathway implementation.

Care Labor in VAD Therapy: Some Feminist Concerns.

Ventricular assist device (VAD) care offers a distinctive lens through which we can explore unjust gender norms. This is a resource-intensive intervention, one in which increasingly sophisticated technology brings with it the need for more long-term care. This care work is demanding, involving device maintenance, medication and appointment management, household work, and emotional support. Most patients eligible for receiving VADs are men, so it is not surprising that it is more often women who are responsible for the care of patients with VADs. Still, there is room to question why so much of this labor is expected of and taken on by female caregivers, when it could be shared with male caregivers and even patients themselves. To the extent that gender difference in the distribution of this labor is avoidable and inequitable, it becomes in part a disparity resulting from unjust social norms. In order to unpack some of this injustice, the authors utilize empiric data and theoretical work in feminist ethics to articulate some of the mechanisms of the gender disparity in VAD care labor and to offer communitarian decision-making and redistribution of care labor as potential routes toward greater justice for women with respect to VAD therapy.

Ventricular Assist Device Self-Management Issues: The Patient and Caregiver Perspectives.

Despite technological advancements, ventricular assist device (VAD) self-management (SM) remains complex. Using a descriptive mixed-method research, we examined the VAD care issues reported by nondyadic sample of 102 patients and 116 caregivers in the United States. Participants (mean age, 50.0 ± 13.1 years) were predominantly white (80%), female (59%), and married (77%). Quantitative and qualitative data revealed the patients/caregivers' need for competency assessment and reassessment of VAD care after discharge. Competent home-care registered nurses (RNs) and on-going communications with VAD care team are needed in support for VAD SM.

Ready, Set, Go: How Patients and Caregivers Are Prepared for Self-Management of an Implantable Ventricular Assist Device.

Since the first use of an implantable ventricular assist device (VAD) nearly 3 decades ago, many VAD Centers in the United States expect patients and caregivers to manage the device and related care following hospital discharge. Despite this customary practice and the rapid advancements in VAD technology, no research data about the patient and caregiver preparations exist for self-management of VAD. This study explored the process of preparing patients and caregivers for VAD care before hospital discharge along with their perceived experiences of the discharge process. Using an exploratory research design, we collected the data with self-administered demographics and VAD Hospital Discharge Survey questionnaires. We analyzed the data provided by 102 patients and 116 caregivers from different regions in the United States. Patients' mean age was 51.4 ± 13.8 years; they were predominantly White (78%); male (66%); and duration of device between 2 and 74 months. Caregivers were predominantly White (80%); female (81%); and had a mean of age 48.9 ± 12.7 years. Participants reported that their VAD care preparations, a crucial component of hospital discharge, were extensive and intensive processes comprising education, training, competency validation, and provision of resources for VAD self-management in home settings. Participants were satisfied with the process and felt prepared for discharge. Further research is needed to rectify the study limitations, advance the science of VAD self-management, and develop evidenced-based VAD self-management guidelines that are aimed at optimizing longevity of the VAD, patients' health, and quality of life.

Development and Feasibility of Self-Management Application in Left-Ventricular Assist Devices

Despite major advancements in mechanical circulatory support, the self-management (SM) for patients with a left-ventricular assist device (LVAD) remains complex and challenging for patients and their caregivers. We have developed a mobile phone application (VAD Care App) to organize and simplify the LVAD SM process. This article describes the development and feasibility study of the app as an SM tool for LVAD patients and caregivers requiring support from ventricular assist device (VAD) coordinators. The specific aim was to evaluate the app's acceptability and usability and the users' competency. App features included an automated alert, data collection/reporting, and dynamic real-time interaction systems embedded in the LVAD SM process. Beta-testing of the prototype was completed by five adults. For the feasibility study, we employed a mixed-method descriptive research design involving nine patients and nine caregivers from two VAD centers in the Midwest. We asked them to use the app daily for more than 30 days and complete an app Evaluation Questionnaire and an interview. The questionnaire uses a five-point rating scale (1 = strongly disagree to 5 = strongly agree) evaluating usability, acceptability, and competency domains. Data generated from the questionnaires and interviews were analyzed with descriptive statistics and content analytic procedures. A total of 16 users (eight patients [all male] and eight caregivers [seven female]) aged 22 to 68 years completed the 30 day study. Median acceptability, usability, and competency scores were 4.6, 4.5, and 4.7, respectively. Based on the data, it is feasible for patients and caregivers to use an app as an LVAD SM tool warranting further research.

The In-Hospital Cost of Ventricular Assist Device Therapy: Implications for Patient Selection.

Ventricular assist device (VAD) therapy is increasingly utilized to support patients in end-stage heart failure. However, VAD programs are resource intensive and demand active monitoring to ensure long-term sustainability. The purpose of this study was to analyze total cost trends of the VAD program at our academic medical center. Retrospective analysis of University of California - Los Angeles's VAD program between 2013 and 2014 was performed. Total in-hospital costs from the date of VAD surgery admission were queried and normalized to a z score. Multivariable linear regression analysis with step-wise elimination was used to model total costs. Overall, 42 patients received a VAD during the study period, with 19 (45%) receiving biventricular support. On univariate analysis, high body mass index, biventricular support, time between VAD implantation and discharge, and total length of hospital stay were correlated with higher costs (all p < 0.02). On multivariable analysis, time between VAD implantation and discharge and biventricular support remained significantly related to total costs (overall R = 0.831, p < 0.001). The time between VAD implantation and discharge and the use of biventricular support were the most predictive factors of total cost in our VAD population. Reducing hospital stay post-VAD implantation is important in minimizing the cost of VAD care.

Evidence, Preferences, Recommendations—Finding the Right Balance in Patient Care

The authors of this report use a clinical case to highlight the difficulties of integrating patient preferences in making decisions in medical care based on evidence-based medicine. As an increasing number of evidence-based performance measures are used to monitor care, there has been growing awareness that patient preferences should play a major part in medical decisions. It has been suggested that some physicians, in the interest of patient autonomy, tend to place too much of the burden of medical decision-making responsibilities on patients. Although it is clear that patients’ preferences and values should not be the sole drivers of clinical decisions, it is also increasingly clear that wide gaps remain in the practice of shared decision making. The case involved a 75-year-old man with congestive heart failure with repeated admissions to a hospital. Because he was not a candidate for a heart transplant, his cardiologist recommended a destination ventricular assist device (VAD). The patient was ambivalent about trying the VAD. Progress has been made in incorporating patient preferences in medical decision making, but much more work is needed. To this end, the authors have developed a 5-step framework for incorporating the best features of an evidence-based and preference-based approach. The first step in practicing preference-based medicine is to have an effective meeting of the patient, family members, and appropriate members of the treatment team. Clinicians must carefully clarify the medical evidence concerning benefits and burdens of future treatment. The second step involves sharing information and expertise with the patient and family. The treating physicians should explain treatment options and prognosis with and without the treatment while learning about the patient’s values, priorities, and expectations in light of the medical facts. Patient preferences may be broad in that some may lean toward aggressive interventions to prolong life and others toward naturalism. The third step is to critically evaluate the evidence and identify physician and patient biases that might influence decision making. Unrealistic overly optimistic expectations of prolonged life or acceptance of the likelihood of death have a major impact in patient preferences. The fourth step involves integration of the information from the evidence-based and preference-based approaches and making a recommendation on future care. In the case of the patient with end-stage congenital heart defect, the treating cardiologist evaluated the benefits of a VAD in light of patient and family expectations, goals, and clear understanding of the likely outcome with and without VAD insertion. With input from the VAD and palliative care teams, the cardiologist recommended against a VAD. After discharge to home hospice, the patient continued his heart-failure treatments, hoping to live as well and as long as he could without further invasive interventions. In the fifth step, physician performance is evaluated. All aspects of the decision-making process are examined to ensure that the recommendation of the clinicians incorporated the preferences of patients and families. This case demonstrates that medical decisions regarding future care that allow patients to get the most out of medical interventions are those that integrate the preferences of informed patients and families who understand the clinical implications of the decision.