Cardiac fibroblasts (CF) play a critical role in post-infarction remodeling which can ultimately lead to pathological fibrosis and heart failure. Recent evidence demonstrates that remote ...(non-infarct) territory fibrosis is a major mechanism for ventricular dysfunction and arrhythmogenesis. β-arrestins are important signaling molecules involved in β-adrenergic receptor (β-AR) desensitization and can also mediate signaling in a G protein independent fashion. Recent work has provided evidence that β-arrestin signaling in the heart may be beneficial, however, these studies have primarily focused on cardiac myocytes and their role in adult CF biology has not been well studied. In this study, we show that β-arrestins can regulate CF biology and contribute to pathological fibrosis. Adult male rats underwent LAD ligation to induce infarction and were studied by echocardiography. There was a significant decline in LV function at 2-12 weeks post-MI with increased infarct and remote territory fibrosis by histology consistent with maladaptive remodeling. Collagen synthesis was upregulated 2.9-fold in CF isolated at 8 and 12 weeks post-MI and β-arrestin expression was significantly increased. β-adrenergic signaling was uncoupled in the post-MI CF and β-agonist-mediated inhibition of collagen synthesis was lost. Knockdown of β-arrestin1 or 2 in the post-MI CF inhibited transformation to myofibroblasts as well as basal and TGF-β-stimulated collagen synthesis. These data suggest that β-arrestins can regulate CF biology and that targeted inhibition of these signaling molecules may represent a novel approach to prevent post-infarction pathological fibrosis and the transition to HF.
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DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
Managing the care of an increasing and aging prisoner population, including providing palliative and end-of-life care, is a challenge worldwide. There is little known about the views of health ...professionals who provide palliative care to hospitalized prisoner patients.
To explore experiences and perspectives of health professionals regarding the provision of palliative and end-of-life care for hospitalized prisoner patients.
A qualitative study involving semistructured focus groups and interviews with 54 medical, nursing, and allied health staff engaged in the care of hospitalized prisoner patients. Purposive sampling from a metropolitan teaching hospital responsible for providing secondary and tertiary health care for prisoners in Victoria, Australia, for 40 years was used to identify and seek perspectives of staff from a variety of clinical disciplines. Inductive thematic analysis was conducted by two researchers.
Participants described significant constraints in how they provide palliative care to hospitalized prisoners. Key themes emerged describing constraints on prisoner health decisions, provision and place of care, patient advocacy, and how care is delivered in the last days of life. Participants highlighted a deep philosophical tension between prison constraints and the foundational principles of palliative care.
Clarity of correctional service processes, protocols, and aspects of security and related training for health professionals is needed to ensure improved care for prisoners with progressive and life-limiting illness. Further research is required to seek the views of prisoners facing end of life and their families.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
Nearly 45 years ago, Suga and colleagues (1) proposed a new approach for quantifying heart pump function based on the concept of elastance or elasticity. Elasticity is a material property that ...describes how much stress is required to cause material deformation. To illustrate, if the ventricle is a balloon, its elasticity can be measured by how much air (or blood) pressure is required to cause an increase in volume. Unlike a balloon that has constant material properties, a ventricle has time-changing material properties. During filling, the ventricle has a low elasticity, which enables a large increase in volume for a small increase in pressure; during isovolumic contraction, the elasticity increases such that ventricular pressure increases, even though there is no change in volume. Then, during ejection and isovolumic relaxation, elasticity increases and decreases to its diastolic value. One benefit of the time-varying elasticity, or elastance, is that it can be measured from pressure-volume loops. A second is that it is load independent for the left ventricle (1), as well as the right ventricle (2).
Abstract
Background
Chronic obstructive pulmonary disease (COPD) and interstital lung disease (ILD) are incurable conditions characterised by airflow limitation, persisting respiratory symptoms, and ...progressive respiratory failure. People living with COPD or ILD often suffer from chronic and severe breathlessness, with limited treatment options and low engagement rates with current therapies. Group singing represents a potential community-based therapy to improve quality of life for patients with COPD or ILD and breathlessness.
Methods
This protocol papers describes SINFONIA, a parallel, double-arm, randomised, blinded-analysis, mixed-methods phase II/III trial of guided, online group singing that will be conducted over 24 months. Adults with confirmed COPD or ILD, on stable treatment for at least four weeks at time of recruitment, with a modified Medical Research Council (mMRC) dyspnoea score of two or greater, who are capable and willing to give consent, and not currently participating in pulmonary rehabilitation will be eligible to participate. Carers may optionally enrol in the trial. Data will be collected on quality of life, anxiety and depression, breathlessness, mastery of breathing, exercise tolerance, loneliness, healthcare utilisation, and carer quality of life (optional). Participants will be randomised 1:1 to intervention or control arms with intervention arm attending one 90 min, guided, online, group singing session per week for 12 weeks and control arm continuing routine care. Phase II of the trial aims to determine the feasibility and acceptability of guided, online group singing and will collect preliminary data on effectiveness. Phase III aims to determine whether guided, online group singing has an effect on quality of life with the primary outcome being a between arm difference in quality of life (36-item Short Form Survey) measured at 12 weeks.
Discussion
SINFONIA is the first study is the first of its kind in Australia and to our knowledge, the first to deliver the singing intervention program entirely online. Determining the feasibility, acceptability, and effectiveness of guided, online group singing is an important step towards improving low-cost, low-risk, community-based therapeutic options for patients living with COPD or ILD and breathlessness.
Trial registration:
Phase II—
ACTRN12621001274864
, registered 20th September 2021; Phase III—
ACTRN12621001280897
, registered 22nd September 2021.
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DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
Objectives: In the new era of voluntary assisted dying (VAD) legislation in Australia, this study aimed to explore (1) underlying reasons for desire to die statements (DTDSs), (2) clinician responses ...to DTDSs and (3) whether DTDSs were a true request for VAD. Methods: Clinical audit using an existing prospectively collected quality assurance database, supplemented by electronic medical records. Patients known to a consultation-liaison palliative care service who expressed a DTDS between October 2019 and September 2020 were included. Results: Forty-one patients were included; 29 (71%) were male, 29 (71%) had a malignancy and 31 (76%) expressed a DTDS more than once. Uncontrolled psychological symptoms were present more often than physical (n = 30 vs 19 73% vs 46%), yet physical symptoms were addressed more frequently than psychological (80% vs 63% of the time). Based on available data, the VAD assessment process was commenced by 7 patients, and death by VAD occurred for 2 patients. Conclusions: In our study, DTDSs were complex, multi-layered requests that more commonly reflected psychological rather than physical suffering. Though VAD is now legally possible, a DTDS was not always synonymous with a request for VAD. Key to responding to these requests are high levels of clinician confidence and communication skills. Training in this area remains critical for the experience of both patients and clinicians.
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NUK, OILJ, SAZU, UKNU, UL, UM, UPUK, VSZLJ
Background: Ethnography has been used to address a broad range of research questions in health care. With ethnographic research methods it is possible to gain access to the complex realities of ...health care practice as it occurs, through interpreting the nuances of individual and team behaviours, the roles and dynamics of care provision, and the social impacts and influences of illness. The provision of clinical palliative care is complex, involving multidisciplinary collaboration across different health systems, and is subject to a multitude of personal, cultural and environmental influences. This complexity demands creative methodological approaches to research in palliative care, of which ethnography plays an important, if infrequently utilised, role. Aim: This article aims to explore potential opportunities of ethnographic methods for palliative care research. Findings: Ethnographic methods focuses on behaviour in the ‘natural’ setting of participants, to create theoretical descriptions of events, cultures, interactions and experiences. In palliative care these methods may provide nuanced understandings of illness, relationships and teams, communication, medical education, complex care provision, and novel or changing health practices. Of particular importance is the potential of these methods to understand complex practices and processes, and engage with under-represented population groups who may be excluded from interview research. Conclusion: Ethnography offers important opportunities for future research in palliative care and should be considered as part of the ‘research toolbox’ to improve understanding of the complex nature of care provision and the experiences of illness and loss.
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NUK, OILJ, SAZU, UKNU, UL, UM, UPUK, VSZLJ
Current evidence suggests that patients with hematological malignancies less frequently access palliative care services, and for those who do, this tends to occur later in their illness than their ...counterparts with solid malignancies. These patients are also more likely to die in hospital following escalating interventions. This approach to care that considers palliative care referral after most treatments are exhausted has implications for the quality of palliative care intervention possible. An episodic approach engaging palliative care according to needs rather than prognosis may be more valuable. The successful integration of palliative care into the care of hemato-oncological patients requires recognition by palliative care physicians of the particular issues encountered in care, namely, the difficulty in individual prognostication; ongoing therapeutic goals of curability or long term survival; the technical nature and complications of treatment; the speed of change to a terminal event; the need for pathology testing and transfusion of blood products as death approaches; the potentially reversible nature of intercurrent events such as infection; and the long relationships that develop between patients and their hematologists. Meanwhile, hematologists should be aware of the benefits of palliative care earlier in an illness trajectory and that palliative care does not equate to terminal care only. This review summarizes current practices and barriers to referral, and suggests recommendations for collaborative care and further research in the palliation of hemato-oncological patients. In doing so, it highlights to palliative care and hematology physicians how successful integration of their disciplines may improve their care of these patients.
Abstract
Background
The importance of palliative care provision has been highlighted in previous humanitarian emergencies. This review aimed to examine the breadth and depth of palliative care ...inclusion within global guidelines for responding to infectious disease outbreaks.
Methods
The review was conducted using the Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines. Electronic searches of MEDLINE, Embase, Cumulative Index to Nursing and Allied Health, PsychInfo and grey literature were performed. Inclusion criteria were guidelines (recommendations for clinical practice or public health policy) for responding to infectious disease outbreaks in the general adult population. Results were limited to the English language, between 1 January 2010 and 17 August 2020. Analysis of the included articles involved assessing the breadth (number of palliative care domains covered) and depth (detail with which the domains were addressed) of palliative care inclusion.
Results
A total of 584 articles were retrieved and 43 met the inclusion criteria. Two additional articles were identified through handsearching. There was limited inclusion of palliative care in the guidelines examined.
Conclusions
There is an opportunity for the development of guidelines that include information on palliative care implementation in the context of infectious disease outbreaks in order to reduce the suffering of key vulnerable populations worldwide.
This study explores and describes the state-wide needs of the first 1000 calls to the newly established Victorian Palliative Care Advice Service (PCAS). A retrospective analysis investigated calls ...from the Victorian general public (n = 618 calls) and healthcare professionals (n = 382 calls) to PCAS between 26 May 2020 and 24 October 2022. Caller demographics, disease type, reason for call, and perceived utility of service were described. Most calls were from members of the public (62%) and related to malignant conditions (41%). Regional/rural clients comprised 45% of all calls to the service, of which half (50%) were health professionals seeking advice on symptom management and medication. One-third (29.3%) of all calls from health professionals were escalated to a palliative care medical consultant. PCAS prevented calls to emergency services in 10% of cases, and 82% of callers reported their issue was ‘very much’ or ‘completely’ addressed by PCAS. PCAS was shown to be frequently used by the public and healthcare professionals supporting patients with advanced, life-limiting illnesses. The service provided a solution without requiring complex technology, delivering a rapid connection for consumers with specialist palliative care expertise that might otherwise be unavailable, particularly in regional areas.
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