Differences in Palliative Care Provision by Primary and Specialist Providers Supporting Patients With COVID-19: A Qualitative Study.

Objectives: To describe the delivery of palliative care by primary providers (PP) and specialist providers (SP) to hospitalized patients with COVID-19. Methods: PP and SP completed interviews about their experiences providing palliative care. Results were analyzed using thematic analysis. Results: Twenty-one physicians (11 SP, 10 PP) were interviewed. Six thematic categories emerged. Care provision: PP and SP described their support of care discussions, symptom management, managing end of life, and care withdrawal. Patients provided care: PP described patients at end of life, with comfort-focused goals; SP included patients seeking life-prolonging treatments. Approach to symptom management: SP described comfort, and PP discomfort in providing opioids with survival-focused goals. Goals of care: SP felt these conversations were code status-focused. Supporting family: both groups indicated difficulties engaging families due to visitor restrictions; SP also outlined challenges in managing family grief and need to advocate for family at the bedside. Care coordination: internist PP and SP described difficulties supporting those leaving the hospital. Conclusion: PP and SP may have a different approach to care, which may affect consistency and quality of care.

Physician perceptions of restrictive visitor policies during the COVID-19 pandemic: a qualitative study.

BACKGROUND: Little is understood of the consequences of restrictive visitor policies that were implemented in hospitals to minimize risk of infection during the COVID-19 pandemic. The objective of this study was to describe physician experiences with these policies and reflections of their effects. METHODS: We conducted semistructured phone interviews from September 2020 to March 2021 with physicians practising in Ontario hospitals, recruited via professional networks and snowball sampling. We audio-recorded, transcribed and analyzed interviews to describe and interpret overarching themes by thematic analysis. RESULTS: We interviewed 21 physicians (5 intensivists, 5 internists, 11 specialists in palliative care). Four main thematic categories emerged, including provider, system, patient and caregiver effects. Provider-related factors included increased time and effort on communication with a need to establish limits; increased effort to develop rapport with caregivers; lack of caregiver input on patient care; the need to act as a caregiver surrogate; and the emotional toll of being a gatekeeper or advocate for visitors, exacerbated by lack of evidence for restrictions and inconsistent enforcement. System effects included the avoidance of hospital admission and decreased length of stay, leading to readmissions, increased deaths at home and avoidance of transfer to other facilities with similar policies. Patient-related factors included isolation and dying alone; lack of caregiver advocacy; and prioritization of visitor presence that, at times, resulted in a delay or withdrawal of aspects of care. Caregiver-related factors included inability to personally assess patient health, leading to poor understanding of patient status and challenging decision-making; perceived inadequate communication; difficulty accessing caregiver supports; and increased risk of complicated grief. Participants highlighted a disproportionate effect on older adults and people who did not speak English. INTERPRETATION: Our study highlights substantial negative consequences of restrictive visitor policies, with heightened effects on older adults and people who did not speak English. Research is required to identify whether the benefits of visitor restrictions on infection control outweigh the numerous deleterious consequences to patients, families and care providers.

Identifying barriers and facilitators to palliative care integration in the management of hospitalized patients with COVID-19: A qualitative study.

BACKGROUND: Palliative care is well suited to support patients hospitalized with COVID-19, but integration into care has been variable and generally poor. AIM: To understand barriers and facilitators of palliative care integration for hospitalized patients with COVID-19. METHODS: Internists, Intensivists and palliative care physicians completed semi-structured interviews about their experiences providing care to patients with COVID-19. Results were analysed using thematic analysis. RESULTS: Twenty-three physicians (13 specialist palliative care, five intensivists, five general internists) were interviewed; mean ± SD age was 42 ± 11 years and 61% were female. Six thematic categories were described including: patient and family factors, palliative care knowledge, primary provider factors, COVID-19 specific factors, palliative care service factors, and leadership and culture factors. Patient and family factors included patient prognosis, characteristics that implied prognosis (i.e., age, etc.), and goals of care. Palliative care knowledge included confidence in primary palliative care skills, misperception that COVID-19 is not a 'palliative diagnosis', and the need to choose quantity or quality of life in COVID-19 management. Primary provider factors included available time, attitude, and reimbursement. COVID-19 specific factors were COVID-19 as an impetus to act, uncertain illness trajectory, treatments and outcomes, and infection control measures. Palliative care service factors were accessibility, adaptability, and previous successful relationships. Leadership and culture factors included government-mandated support, presence at COVID planning tables, and institutional and unit culture. CONCLUSION: The study findings highlight the need for leadership support for formal integrated models of palliative care for patients with COVID-19, a palliative care role in pandemic planning, and educational initiatives with primary palliative care providers.

ABO blood groups influence macrophage-mediated phagocytosis of Plasmodium falciparum-infected erythrocytes.

Erythrocyte polymorphisms associated with a survival advantage to Plasmodium falciparum infection have undergone positive selection. There is a predominance of blood group O in malaria-endemic regions, and several lines of evidence suggest that ABO blood groups may influence the outcome of P. falciparum infection. Based on the hypothesis that enhanced innate clearance of infected polymorphic erythrocytes is associated with protection from severe malaria, we investigated whether P. falciparum-infected O erythrocytes are more efficiently cleared by macrophages than infected A and B erythrocytes. We show that human macrophages in vitro and mouse monocytes in vivo phagocytose P. falciparum-infected O erythrocytes more avidly than infected A and B erythrocytes and that uptake is associated with increased hemichrome deposition and high molecular weight band 3 aggregates in infected O erythrocytes. Using infected A(1), A(2), and O erythrocytes, we demonstrate an inverse association of phagocytic capacity with the amount of A antigen on the surface of infected erythrocytes. Finally, we report that enzymatic conversion of B erythrocytes to type as O before infection significantly enhances their uptake by macrophages to observed level comparable to that with infected O wild-type erythrocytes. These data provide the first evidence that ABO blood group antigens influence macrophage clearance of P. falciparum-infected erythrocytes and suggest an additional mechanism by which blood group O may confer resistance to severe malaria.

Combinations of host biomarkers predict mortality among Ugandan children with severe malaria: a retrospective case-control study.

BACKGROUND: Severe malaria is a leading cause of childhood mortality in Africa. However, at presentation, it is difficult to predict which children with severe malaria are at greatest risk of death. Dysregulated host inflammatory responses and endothelial activation play central roles in severe malaria pathogenesis. We hypothesized that biomarkers of these processes would accurately predict outcome among children with severe malaria. METHODOLOGY/FINDINGS: Plasma was obtained from children with uncomplicated malaria (n = 53), cerebral malaria (n = 44) and severe malarial anemia (n = 59) at time of presentation to hospital in Kampala, Uganda. Levels of angiopoietin-2, von Willebrand Factor (vWF), vWF propeptide, soluble P-selectin, soluble intercellular adhesion molecule-1 (ICAM-1), soluble endoglin, soluble FMS-like tyrosine kinase-1 (Flt-1), soluble Tie-2, C-reactive protein, procalcitonin, 10 kDa interferon gamma-induced protein (IP-10), and soluble triggering receptor expressed on myeloid cells-1 (TREM-1) were determined by ELISA. Receiver operating characteristic (ROC) curve analysis was used to assess predictive accuracy of individual biomarkers. Six biomarkers (angiopoietin-2, soluble ICAM-1, soluble Flt-1, procalcitonin, IP-10, soluble TREM-1) discriminated well between children who survived severe malaria infection and those who subsequently died (area under ROC curve>0.7). Combinational approaches were applied in an attempt to improve accuracy. A biomarker score was developed based on dichotomization and summation of the six biomarkers, resulting in 95.7% (95% CI: 78.1-99.9) sensitivity and 88.8% (79.7-94.7) specificity for predicting death. Similar predictive accuracy was achieved with models comprised of 3 biomarkers. Classification tree analysis generated a 3-marker model with 100% sensitivity and 92.5% specificity (cross-validated misclassification rate: 15.4%, standard error 4.9%). CONCLUSIONS: We identified novel host biomarkers of pediatric severe and fatal malaria (soluble TREM-1 and soluble Flt-1) and generated simple biomarker combinations that accurately predicted death in an African pediatric population. While requiring validation in further studies, these results suggest the utility of combinatorial biomarker strategies as prognostic tests for severe malaria.