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1.
J Biol Chem ; 299(4): 103064, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36841480

RESUMO

Gßγ subunits mediate many different signaling processes in various compartments of the cell, including the nucleus. To gain insight into the functions of nuclear Gßγ signaling, we investigated the functional role of Gßγ signaling in the regulation of GPCR-mediated gene expression in primary rat neonatal cardiac fibroblasts. We identified a novel, negative, regulatory role for the Gß1γ dimer in the fibrotic response. Depletion of Gß1 led to derepression of the fibrotic response at the mRNA and protein levels under basal conditions and an enhanced fibrotic response after sustained stimulation of the angiotensin II type I receptor. Our genome-wide chromatin immunoprecipitation experiments revealed that Gß1 colocalized and interacted with RNA polymerase II on fibrotic genes in an angiotensin II-dependent manner. Additionally, blocking transcription with inhibitors of Cdk9 prevented association of Gßγ with transcription complexes. Together, our findings suggest that Gß1γ is a novel transcriptional regulator of the fibrotic response that may act to restrict fibrosis to conditions of sustained fibrotic signaling. Our work expands the role for Gßγ signaling in cardiac fibrosis and may have broad implications for the role of nuclear Gßγ signaling in other cell types.


Assuntos
Fibroblastos , Subunidades beta da Proteína de Ligação ao GTP , Subunidades gama da Proteína de Ligação ao GTP , Regulação da Expressão Gênica , Miocárdio , RNA Polimerase II , Transcrição Gênica , Animais , Ratos , Angiotensina II/metabolismo , Núcleo Celular/genética , Núcleo Celular/metabolismo , Fibroblastos/metabolismo , Subunidades beta da Proteína de Ligação ao GTP/genética , Subunidades beta da Proteína de Ligação ao GTP/metabolismo , Subunidades gama da Proteína de Ligação ao GTP/genética , Subunidades gama da Proteína de Ligação ao GTP/metabolismo , RNA Polimerase II/genética , RNA Polimerase II/metabolismo , Transdução de Sinais/fisiologia , Miocárdio/citologia , Miocárdio/patologia , Fibrose
2.
CMAJ ; 196(16): E547-E557, 2024 Apr 28.
Artigo em Inglês | MEDLINE | ID: mdl-38684285

RESUMO

BACKGROUND: People with opioid use disorder (OUD) are at risk of premature death and can benefit from palliative care. We sought to compare palliative care provision for decedents with and without OUD. METHODS: We conducted a cohort study using health administrative databases in Ontario, Canada, to identify people who died between July 1, 2015, and Dec. 31, 2021. The exposure was OUD, defined as having emergency department visits, hospital admissions, or pharmacologic treatments suggestive of OUD within 3 years of death. Our primary outcome was receipt of 1 or more palliative care services during the last 90 days before death. Secondary outcomes included setting, initiation, and intensity of palliative care. We conducted a secondary analysis excluding sudden deaths (e.g., opioid toxicity, injury). RESULTS: Of 679 840 decedents, 11 200 (1.6%) had OUD. Compared with people without OUD, those with OUD died at a younger age and were more likely to live in neighbourhoods with high marginalization indices. We found people with OUD were less likely to receive palliative care at the end of their lives (adjusted relative risk [RR] 0.84, 95% confidence interval [CI] 0.82-0.86), but this difference did not exist after excluding people who died suddenly (adjusted RR 0.99, 95% CI 0.96-1.01). People with OUD were less likely to receive palliative care in clinics and their homes regardless of cause of death. INTERPRETATION: Opioid use disorder can be a chronic, life-limiting illness, and people with OUD are less likely to receive palliative care in communities during the 90 days before death. Health care providers should receive training in palliative care and addiction medicine to support people with OUD.


Assuntos
Transtornos Relacionados ao Uso de Opioides , Cuidados Paliativos , Humanos , Ontário/epidemiologia , Transtornos Relacionados ao Uso de Opioides/epidemiologia , Transtornos Relacionados ao Uso de Opioides/mortalidade , Transtornos Relacionados ao Uso de Opioides/terapia , Masculino , Feminino , Cuidados Paliativos/estatística & dados numéricos , Pessoa de Meia-Idade , Adulto , Estudos de Coortes , Idoso , Bases de Dados Factuais , Idoso de 80 Anos ou mais
3.
Ann Vasc Surg ; 105: 165-176, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38574808

RESUMO

BACKGROUND: Ocular ischemic syndrome (OIS) is a rare presentation of atherosclerotic carotid artery stenosis that can result in permanent visual loss. This severely disabling syndrome remains under diagnosed and undertreated due to lack of awareness; especially since it requires expedited multidisciplinary care. The relevance of early diagnosis and treatment is increasing due to an increasing prevalence of cerebrovascular disease. METHODS: The long-term visual and cerebrovascular outcomes following intervention for nonarteritic OIS, remain poorly described and were the objective of this concise review. We conducted a PubMed search to include all English language publications (cohort studies and case reports) between 2002 and 2023. RESULTS: A total of 33 studies (479 patients) report the outcomes of treatment of OIS with carotid endarterectomy (CEA, 304 patients, 19 studies), and carotid artery stenting (CAS, 175 patients, 14 studies). Visual outcomes were improved or did not worsen in 447 patients (93.3%). No periprocedural stroke was reported. Worsening visual symptoms were rare (35 patients, 7.3%); they occurred in the immediate postoperative period secondary to ocular hypoperfusion (3 patients) and in the late postoperative period due to progression of systemic atherosclerotic disease. Symptomatic recurrence due to recurrent stenosis after CEA was reported in 1 patient (0.21%); this was managed successfully with CAS. None of these studies report the results of transcarotid artery revascularization, the long-term operative outcome or stroke rate. CONCLUSIONS: OIS remains to be an underdiagnosed condition. Early diagnosis and prompt treatment are crucial in reversal or stabilization of OIS symptoms. An expedited multidisciplinary approach between vascular surgery and ophthalmology services is necessary to facilitate timely treatment and optimize outcome. If diagnosed early, both CEA and CAS have been associated with visual improvement and prevention of progressive visual loss.


Assuntos
Estenose das Carótidas , Endarterectomia das Carótidas , Stents , Humanos , Endarterectomia das Carótidas/efeitos adversos , Resultado do Tratamento , Estenose das Carótidas/diagnóstico por imagem , Estenose das Carótidas/cirurgia , Estenose das Carótidas/complicações , Estenose das Carótidas/terapia , Idoso , Masculino , Feminino , Fatores de Tempo , Fatores de Risco , Isquemia/fisiopatologia , Isquemia/cirurgia , Isquemia/diagnóstico , Isquemia/terapia , Isquemia/etiologia , Pessoa de Meia-Idade , Transtornos da Visão/etiologia , Transtornos da Visão/fisiopatologia , Procedimentos Endovasculares/efeitos adversos , Síndrome , Recuperação de Função Fisiológica , Visão Ocular , Idoso de 80 Anos ou mais
4.
Palliat Support Care ; 22(3): 535-538, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38126334

RESUMO

OBJECTIVES: The objective of this study was to compare the attitudes and beliefs of PCU physicians leaders in the United States versus Canada regarding the subcutaneous method in the administration of medications and hydration in order to gain a better understanding as to why variations in practice exist. METHODS: This survey trial took place from November 2022 to May 2023. The MD Anderson Cancer Center institutional review board in Houston, Texas, approved this study. The participants were the physician leaders of the acute palliative care units (PCUs) in the United States and Canada. The survey comprised questions formulated by the study investigators regarding the perceived comfort, efficiency, and preference of using the subcutaneous versus the intravenous method. The consent form and survey links were emailed to the participants. RESULTS: Sixteen PCUs were identified in the United States and 15 PCUs in Canada. Nine US and 8 Canadian physicians completed the survey. Physicians in Canada were more likely to use the subcutaneous route for administering opioids, antiemetics, neuroleptics, and hydration. They preferred subcutaneous over intravenous or intramuscular routes (p = 0.017). Canadian physicians felt their nursing staff was more comfortable with subcutaneous administration (p = 0.022) and that it was easier to administer (p = 0.02). US physicians felt the intravenous route was more efficient (p = 0.013). SIGNIFICANCE OF RESULTS: The study results suggest that exposure to the subcutaneous route influences a physician's perception. Further research is needed to explore ways to incorporate its use to a greater degree in the US healthcare system.


Assuntos
Atitude do Pessoal de Saúde , Cuidados Paliativos , Médicos , Humanos , Canadá , Cuidados Paliativos/métodos , Cuidados Paliativos/normas , Cuidados Paliativos/psicologia , Estados Unidos , Inquéritos e Questionários , Médicos/psicologia , Médicos/estatística & dados numéricos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Hidratação/métodos , Hidratação/normas , Hidratação/psicologia , Hidratação/estatística & dados numéricos , Injeções Subcutâneas/métodos , Injeções Subcutâneas/psicologia
5.
Support Care Cancer ; 31(8): 451, 2023 Jul 08.
Artigo em Inglês | MEDLINE | ID: mdl-37421447

RESUMO

PURPOSE: Telehealth allows patients to maintain contact with healthcare providers without necessitating travel, and is becoming increasingly utilized. The purpose of this study is to describe the components of telehealth palliative care interventions for patients with advanced cancer before the COVID-19 pandemic; identify any intervention components associated with improvements in outcomes; and evaluate reporting of interventions. METHODS: This scoping review was registered on the Open Science Framework. We searched 5 medical databases from inception to June 19, 2020. Inclusion criteria were: age ≥ 18, advanced cancer, asynchronous or synchronous telehealth intervention, and specialized palliative care interventions in any setting. We assessed the quality of intervention reporting using the Template for Intervention Description and Replication (TIDieR) checklist. RESULTS: Twenty-three studies met the inclusion criteria: 15 (65%) quantitative (7 randomized controlled trials, 5 feasibility trials, 3 retrospective chart reviews); 4 (17%) mixed methods, and 4 (17%) qualitative. Most quantitative and mixed methods studies were conducted in North America (12/19, 63%), reported on hybrid (in-person and telehealth) interventions (9/19, 47%), and were delivered by nurses (12/19, 63%) in the home setting (14/19, 74%). In most studies that reported improvements in patient- or caregiver-reported outcomes, the content was psychoeducational and resulted in improvements for psychological symptoms. No study provided complete reporting on all 12 TIDieR checklist items. CONCLUSION: Telehealth studies are needed that reflect palliative care's mission to provide multidisciplinary team-based care that improves quality of life in diverse settings, and that provide detailed reporting of interventions.


Assuntos
COVID-19 , Neoplasias , Telemedicina , Humanos , Cuidados Paliativos/métodos , Qualidade de Vida/psicologia , Pandemias , Estudos Retrospectivos , Telemedicina/métodos , Neoplasias/terapia
6.
Palliat Med ; 37(4): 426-443, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36522840

RESUMO

BACKGROUND: People who use drugs with life-limiting illnesses experience substantial barriers to accessing palliative care. Demand for palliative care is expected to increase during communicable disease epidemics and pandemics. Understanding how epidemics and pandemics affect palliative care for people who use drugs is important from a service delivery perspective and for reducing population health inequities. AIM: To explore what is known about communicable disease epidemics and pandemics, palliative care, and people who use drugs. DESIGN: Scoping review. DATA SOURCES: We searched six bibliographic databases from inception to April 2021 as well as the grey literature. We included English and French records about palliative care access, programs, and policies and guidelines for people ⩾18 years old who use drugs during communicable disease epidemics and pandemics. RESULTS: Forty-four articles were included in our analysis. We identified limited knowledge about palliative care for people who use drugs during epidemics and pandemics other than HIV/AIDS. Through our thematic synthesis of the records, we generated the following themes: enablers and barriers to access, organizational barriers, structural inequity, access to opioids and other psychoactive substances, and stigma. CONCLUSIONS: Our findings underscore the need for further research about how best to provide palliative care for people who use drugs during epidemics and pandemics. We suggest four ways that health systems can be better prepared to help alleviate the structural barriers that limit access as well as support the provision of high-quality palliative care during future epidemics and pandemics.


Assuntos
COVID-19 , Doenças Transmissíveis , Humanos , Adolescente , Cuidados Paliativos , Pandemias , Preparações Farmacêuticas , Políticas
7.
J Oncol Pharm Pract ; : 10781552231200169, 2023 Sep 24.
Artigo em Inglês | MEDLINE | ID: mdl-37743630

RESUMO

INTRODUCTION: Canada is in the midst of an overdose crisis. The use of prescription opioids in Canada has increased steadily over the past two decades, with stark increases in opioid-induced respiratory depression and related deaths. Opioids are the mainstay of treatment for cancer-related pain. Patients with cancer are not immune to the risks associated with opioid use but are underrepresented in available literature outlining risk mitigation strategies. Pharmacists are ideally placed to employ opioid risk mitigation practices to support safe and effective opioid use for patients with cancer-related pain. However, the current attitudes, confidence, and safety practices of pharmacists around how to best support these patients are not known. METHODS: This study was a descriptive environmental scan of pharmacists who provide direct patient care in Canada. An electronic questionnaire was built using the web based Opinio software. It was distributed via email by several provincial and national pharmacy organizations and online platforms. The questionnaire consisted of Likert-scale and open-ended questions and was open to participants for a 6-week period from February 12th to March 23rd, 2020. Analysis was conducted using descriptive statistics and qualitative content analysis. RESULTS: Eighty-one responses from pharmacists in nine provinces were included in the analysis. Respondents endorsed limited and varied practices when caring for patients receiving opioids for cancer-related pain. Further, they demonstrated wide ranging confidence and attitudes regarding opioid risk mitigation practices and beliefs. Less than 50% of pharmacists were aware of resources available for their patients with non-medical opioid use, and/or patients at high risk of opioid-induced respiratory depression. Education, resources, and communication were the most commonly reported perceived facilitators and barriers to resource use. CONCLUSIONS: Pharmacists in Canada report employing opioid risk mitigation practices with low and varied frequency when caring for patients receiving opioids for cancer-related pain. They endorsed varied confidence and limited awareness of available provider and patient resources. These findings may help inform the development of new education models and evidence-based guidelines. New education models and evidence-based guidelines will support pharmacists in their pharmaceutical care of this vulnerable patient population, ultimately aiming to improve patient outcomes.

8.
J Nurs Care Qual ; 38(1): 69-75, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36214674

RESUMO

BACKGROUND: Malignant bowel obstruction (MBO) in patients with advanced gynecologic cancer (GyCa) can negatively impact clinical outcomes and quality of life. Oncology nurses can support these patients with adequate tools/processes. PROBLEM: Patients with GyCa with/at risk of MBO endure frequent emergency or hospital admissions, impacting patient care. APPROACH: Optimizing oncology nurses' role to improve care for patients with GyCa with/at risk of MBO, the gynecology oncology interprofessional team collaborated to develop a proactive outpatient nurse-led MBO model of care (MOC). OUTCOMES: The MBO MOC involves a risk-based algorithm engaging interdisciplinary care, utilizing standardized tools, risk-based assessment, management, and education for patients and nurses. The MOC has improved patient-reported confidence level of bowel self-management and decreased hospitalization. Following education, nurses demonstrated increased knowledge in MBO management. CONCLUSIONS: An outpatient nurse-led MBO MOC can improve patient care and may be extended to other cancer centers, fostering collaboration and best practice.


Assuntos
Obstrução Intestinal , Neoplasias , Humanos , Feminino , Pacientes Ambulatoriais , Qualidade de Vida , Papel do Profissional de Enfermagem , Obstrução Intestinal/etiologia , Obstrução Intestinal/terapia , Obstrução Intestinal/patologia , Cuidados Paliativos
9.
Ann Fam Med ; (20 Suppl 1)2022 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-36706423

RESUMO

Context The impact of the COVID-19 pandemic on health care service and delivery has been profound. In addition to shifting and expanding clinical responsibilities, rapidly evolving information and guidelines during the COVID-19 pandemic has made it difficult for healthcare workers (HCWs) to synthesize and translate COVID-19 information into practice. Objective The objectives of this study are 1) to examine the impact of a telemedicine education program on HCW's self-efficacy and satisfaction and 2) to explore HCWs' experience in the program and context of practice during the COVID-19 pandemic. Study Design We conducted a prospective mixed methods parallel-design study among ECHO COVID participants using pre-post questionnaires and focus group discussions (FGDs). We examined questionnaire results for changes in HCWs' self-efficacy and satisfaction. We analyzed FGD data to explore HCWs' experience in ECHO and the context of their practice during the COVID-19 pandemic. Setting Project Extension for Community Healthcare Outcomes (ECHO) model is a virtual, telemedicine education model that provides longitudinal support and addresses the emerging needs of HCWs. "ECHO Ontario: Managing COVID-19 Patients in the Community" (ECHO) was launched in July 2020. The goal of the program was to disseminate best practices regarding COVID-19 as they emerged and to increase HCW confidence and knowledge of COVID-19. Population Studied The study population were practicing HCWs in the province of Ontario, Canada. 1) HCW self-efficacy 2) HCW satisfaction Results Of 299 HCWs registered in ECHO COVID, 114 (38.1%) participated in this analysis. Median self-efficacy scores increased from 5 (IQR 4 - 6) to 6 (IQR 6 - 6) (p < 0.0001), independent of profession, years in practice, age group, or type of practice environment. Participants were highly satisfied with the ECHO sessions with a median score of 4 (IQR 4 - 5). FGD data indicated that HCWs gained knowledge through ECHO, established the context of their practice, and revealed facilitators for ECHO program success, including the transition to virtual care, the practicability of knowledge provided, and a "perspective from the trenches." Conclusions This study demonstrated that a telemedicine education program aimed to support HCWs in managing patients with COVID-19 had a positive impact on self-efficacy and satisfaction, and that this impact was specifically mediated through the ECHO program.


Assuntos
COVID-19 , Telemedicina , Humanos , COVID-19/epidemiologia , Ontário , Pandemias , Estudos Prospectivos , Pessoal de Saúde
10.
Support Care Cancer ; 30(6): 4711-4728, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35274188

RESUMO

PURPOSE: To provide evidence-based recommendations on the management of malignant bowel obstruction (MBO) for patients with advanced cancer. METHODS: The Multinational Association for Supportive Care in Cancer (MASCC) MBO study group conducted a systematic review of databases (inception to March 2021) to identify studies about patients with advanced cancer and MBO that reported on the following outcomes: symptom management, bowel obstruction resolution, prognosis, overall survival, and quality of life. The review was restricted to studies published in English, but no restrictions were placed on publication year, country, and study type. As per the MASCC Guidelines Policy, the findings were synthesized to determine the levels of evidence to support each MBO intervention and, ultimately, the graded recommendations and suggestions. RESULTS: The systematic review identified 17,656 published studies and 397 selected for the guidelines. The MASCC study group developed a total of 25 evidence-based suggestions and recommendations about the management of MBO-related nausea and vomiting, bowel movements, pain, inflammation, bowel decompression, and nutrition. Expert consensus-based guidance about advanced care planning and psychosocial support is also provided. CONCLUSION: This MASCC Guideline provides comprehensive, evidence-based recommendations about MBO management for patients with advanced cancer.


Assuntos
Obstrução Intestinal , Neoplasias , Humanos , Obstrução Intestinal/cirurgia , Obstrução Intestinal/terapia , Náusea , Neoplasias/complicações , Neoplasias/terapia , Cuidados Paliativos , Qualidade de Vida
11.
Support Care Cancer ; 29(5): 2501-2507, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-32929539

RESUMO

COVID-19 was first reported in Wuhan, China, in December 2019; it rapidly spread around the world and was declared a global pandemic by the World Health Organization in March 2020. The palliative care program at the Princess Margaret Cancer Centre, Toronto, Canada, provides comprehensive care to patients with advanced cancer and their families, through services including an acute palliative care unit, an inpatient consultation service, and an ambulatory palliative care clinic. In the face of a global pandemic, palliative care teams are uniquely placed to support patients with cancer who also have COVID-19. This may include managing severe symptoms such as dyspnea and agitation, as well as guiding advance care planning and goals of care conversations. In tandem, there is a need for palliative care teams to continue to provide care to patients with advanced cancer who are COVID-negative but who are at higher risk of infection and adverse outcomes related to COVID-19. This paper highlights the unique challenges faced by a palliative care team in terms of scaling up services in response to a global pandemic while simultaneously providing ongoing support to their patients with advanced cancer at a tertiary cancer center.


Assuntos
COVID-19/epidemiologia , Neoplasias/terapia , Canadá/epidemiologia , Humanos , Cuidados Paliativos/métodos , Pandemias , SARS-CoV-2/isolamento & purificação , Centros de Atenção Terciária
12.
Palliat Med ; 35(7): 1295-1322, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-34000897

RESUMO

BACKGROUND: Screening for problematic opioid use is increasingly recommended in patients receiving palliative care. AIM: To identify tools used to assess for the presence or risk of problematic opioid use in palliative care. DESIGN: Scoping review. DATA SOURCES: Bibliographic databases (inception to January 31, 2020), reference lists, and grey literature were searched to find primary studies reporting on adults receiving palliative care and prescription opioids to manage symptoms from advanced cancer, neurodegenerative diseases, or end-stage organ diseases; and included tools to assess for problematic opioid use. There were no restrictions based on study design, location, or language. RESULTS: We identified 42 observational studies (total 14,431 participants) published between 2009 and 2020 that used questionnaires (n = 32) and urine drug tests (n = 21) to assess for problematic opioid use in palliative care, primarily in US (n = 38) and outpatient palliative care settings (n = 36). The questionnaires were Cut down, Annoyed, Guilty, and Eye-opener (CAGE, n = 8), CAGE-Adapted to Include Drugs (CAGE-AID, n = 6), Opioid Risk Tool (n = 9), Screener and Opioid Assessment for Patients with Pain (SOAPP; n = 3), SOAPP-Revised (n = 2), and SOAPP-Short Form (n = 5). Only two studies' primary objectives were to evaluate a questionnaire's psychometric properties in patients receiving palliative care. There was wide variation in how urine drug tests were incorporated into palliative care; frequency of abnormal urine drug test results ranged from 8.6% to 70%. CONCLUSION: Given the dearth of studies using tools developed or validated specifically for patients receiving palliative care, further research is needed to inform clinical practice and policy regarding problematic opioid use in palliative care.


Assuntos
Enfermagem de Cuidados Paliativos na Terminalidade da Vida , Transtornos Relacionados ao Uso de Opioides , Adulto , Analgésicos Opioides/uso terapêutico , Humanos , Dor/tratamento farmacológico , Cuidados Paliativos
13.
Can J Anaesth ; 67(2): 235-246, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31571119

RESUMO

Pain is a common symptom associated with advanced cancer. An estimated 66.4% of people with advanced cancer experience pain from their disease or treatment. Pain management is an essential component of palliative care. Opioids and adjuvant therapies are the mainstay of cancer pain management. Nevertheless, a proportion of patients may experience complex pain that is not responsive to conventional analgesia. Interventional analgesia procedures may be appropriate and necessary to manage complex, cancer-related pain. This narrative review uses a theoretical case to highlight core principles of palliative care and interventional anesthesia, and the importance of collaborative, interdisciplinary care. An overview and discussion of pragmatic considerations of peripheral nervous system interventional analgesic procedures and neuraxial analgesia infusions are provided.


Assuntos
Anestesia , Dor do Câncer , Neoplasias , Cuidados Paliativos , Dor do Câncer/tratamento farmacológico , Humanos , Neoplasias/complicações , Dor , Manejo da Dor
14.
Support Care Cancer ; 26(11): 3951-3958, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-29850945

RESUMO

PURPOSE: Acute palliative care units (APCUs) admit patients with cancer for symptom control, transition to community palliative care units or hospice (CPCU/H), or end-of-life care. Prognostication early in the course of admission is crucial for decision-making. We retrospectively evaluated factors associated with patients' discharge disposition on an APCU in a cancer center. METHODS: We evaluated demographic, administrative, and clinical data for all patients admitted to the APCU in 2015. Clinical data included cancer diagnosis, delirium screening, and Edmonton Symptom Assessment System (ESAS) symptoms. An ESAS sub-score composed of fatigue, drowsiness, shortness of breath, and appetite (FDSA) was also investigated. Factors associated with patients' discharge disposition (home, CPCU/H, died on APCU) were identified using three-level multinomial logistic regression. RESULTS: Among 280 patients, the median age was 65.5 and median length of stay was 10 days; 155 (55.4%) were admitted for symptom control, 65 (23.2%) for transition to CPCU/H, and 60 (21.4%) for terminal care. Discharge dispositions were as follows: 156 (55.7%) died, 63 (22.5%) returned home, and 61 (21.8%) were transferred to CPCU/H. On multivariable analysis, patients who died were less likely to be older (OR 0.97, p = 0.01), or to be admitted for symptom control (OR 0.06, p < 0.0001), and more likely to have a higher FDSA score 21-40 (OR 3.02, p = 0.004). Patients discharged to CPCU/H were less likely to have been admitted for symptom control (OR 0.06, p < 0.0001). CONCLUSION: Age, reason for admission, and the FDSA symptom cluster on admission are variables that can inform clinicians about probable discharge disposition on an APCU.


Assuntos
Cuidados Críticos/estatística & dados numéricos , Neoplasias/epidemiologia , Neoplasias/terapia , Cuidados Paliativos/estatística & dados numéricos , Alta do Paciente/estatística & dados numéricos , Transferência de Pacientes/estatística & dados numéricos , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Cuidados Paliativos na Terminalidade da Vida/estatística & dados numéricos , Unidades Hospitalares/estatística & dados numéricos , Hospitalização/estatística & dados numéricos , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias/complicações , Neoplasias/diagnóstico , Prognóstico , Estudos Retrospectivos , Fatores de Risco , Assistência Terminal/estatística & dados numéricos
16.
J Integr Plant Biol ; 59(12): 881-894, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28880427

RESUMO

Although "dry-type" stigmas are widely regarded as ancestral in angiosperms, the early-divergent family Annonaceae has copious stigmatic exudate. We evaluate three putative functions for this exudate: as a nutritive reward for pollinators; as a pollen germination medium; and as an extragynoecial compitum that enables pollen tube growth between carpels. Stigmatic exudate is fructose dominated (72.2%), but with high levels of glucose and sucrose; the dominance of hexose sugars and the diversity of amino acids observed, including many that are essential for insects, support a nutritive role for pollinators. Sugar concentration in pre-receptive flowers is high (28.2%), falling during the peak period of stigmatic receptivity (17.4%), and then rising again toward the end of the pistillate phase (32.9%). Pollen germination was highest in sugar concentrations <20%. Sugar concentrations during the peak pistillate phase therefore provide optimal osmolarity for pollen hydration and germination; subsequent changes in sugar concentration during anthesis reinforce protogyny (in which carpels mature before stamens), enabling the retention of concentrated exudate into the staminate phase as a pollinator food reward without the possibility of pollen germination. Intercarpellary growth of pollen tubes was confirmed: the exudate therefore also functions as a suprastylar extragynoecial compitum, overcoming the limitations of apocarpy.


Assuntos
Annonaceae/metabolismo , Annonaceae/fisiologia , Flores/metabolismo , Flores/fisiologia , Germinação/fisiologia , Magnoliopsida/metabolismo , Magnoliopsida/fisiologia , Tubo Polínico/metabolismo , Tubo Polínico/fisiologia , Polinização/fisiologia
17.
Infect Immun ; 82(6): 2318-28, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24664507

RESUMO

Kingella kingae is a human oral bacterium that can cause diseases of the skeletal system in children and infective endocarditis in children and adults. K. kingae produces a toxin of the RTX group, RtxA. To investigate the role of RtxA in disease pathogenesis in vivo, K. kingae strain PYKK081 and its isogenic RtxA-deficient strain KKNB100 were tested for their virulence and pathological consequences upon intraperitoneal injections in 7-day-postnatal (PN 7) rats. At the doses above 8.0 × 10(6) cells/animal, PYKK081 was able to cause a fatal illness, resulting in rapid weight loss, bacteremia, and abdominal necrotic lesion formation. Significant histopathology was observed in thymus, spleen, and bone marrow. Strain KKNB100 was less toxic to animals. Neither weight loss, bacteremia, nor histopathological changes were evident. Animals injected with KKNB100 exhibited a significantly elevated circulating white blood cell (WBC) count, whereas animals injected with PYKK081 had a WBC count that resembled that of the uninfected control. This observation parallels the subtleties associated with clinical presentation of K. kingae disease in humans and suggests that the toxin contributes to WBC depletion. Thus, our results demonstrate that RtxA is a key K. kingae virulence factor. Furthermore, our findings suggest that the PN 7 rat can serve as a useful model for understanding disease caused by K. kingae and for elucidating diagnostic parameters in human patients.


Assuntos
Toxinas Bacterianas , Kingella kingae/patogenicidade , Infecções por Neisseriaceae/microbiologia , Virulência/fisiologia , Animais , Toxinas Bacterianas/genética , Toxinas Bacterianas/metabolismo , Modelos Animais de Doenças , Contagem de Leucócitos , Infecções por Neisseriaceae/patologia , Ratos , Ratos Sprague-Dawley
18.
JAMA Netw Open ; 7(2): e240503, 2024 Feb 05.
Artigo em Inglês | MEDLINE | ID: mdl-38411960

RESUMO

Importance: The COVID-19 pandemic had a profound impact on the delivery of cancer care, but less is known about its association with place of death and delivery of specialized palliative care (SPC) and potential disparities in these outcomes. Objective: To evaluate the association of the COVID-19 pandemic with death at home and SPC delivery at the end of life and to examine whether disparities in socioeconomic status exist for these outcomes. Design, Setting, and Participants: In this cohort study, an interrupted time series analysis was conducted using Ontario Cancer Registry data comprising adult patients aged 18 years or older who died with cancer between the pre-COVID-19 (March 16, 2015, to March 15, 2020) and COVID-19 (March 16, 2020, to March 15, 2021) periods. The data analysis was performed between March and November 2023. Exposure: COVID-19-related hospital restrictions starting March 16, 2020. Main Outcomes and Measures: Outcomes were death at home and SPC delivery at the end of life (last 30 days before death). Socioeconomic status was measured using Ontario Marginalization Index area-based material deprivation quintiles, with quintile 1 (Q1) indicating the least deprivation; Q3, intermediate deprivation; and Q5, the most deprivation. Segmented linear regression was used to estimate monthly trends in outcomes before, at the start of, and in the first year of the COVID-19 pandemic. Results: Of 173 915 patients in the study cohort (mean [SD] age, 72.1 [12.5] years; males, 54.1% [95% CI, 53.8%-54.3%]), 83.7% (95% CI, 83.6%-83.9%) died in the pre-COVID-19 period and 16.3% (95% CI, 16.1%-16.4%) died in the COVID-19 period, 54.5% (95% CI, 54.2%-54.7%) died at home during the entire study period, and 57.8% (95% CI, 57.5%-58.0%) received SPC at the end of life. In March 2020, home deaths increased by 8.3% (95% CI, 7.4%-9.1%); however, this increase was less marked in Q5 (6.1%; 95% CI, 4.4%-7.8%) than in Q1 (11.4%; 95% CI, 9.6%-13.2%) and Q3 (10.0%; 95% CI, 9.0%-11.1%). There was a simultaneous decrease of 5.3% (95% CI, -6.3% to -4.4%) in the rate of SPC at the end of life, with no significant difference among quintiles. Patients who received SPC at the end of life (vs no SPC) were more likely to die at home before and during the pandemic. However, there was a larger immediate increase in home deaths among those who received no SPC at the end of life vs those who received SPC (Q1, 17.5% [95% CI, 15.2%-19.8%] vs 7.6% [95% CI, 5.4%-9.7%]; Q3, 12.7% [95% CI, 10.8%-14.5%] vs 9.0% [95% CI, 7.2%-10.7%]). For Q5, the increase in home deaths was significant only for patients who did not receive SPC (13.9% [95% CI, 11.9%-15.8%] vs 1.2% [95% CI, -1.0% to 3.5%]). Conclusions and Relevance: These findings suggest that the COVID-19 pandemic was associated with amplified socioeconomic disparities in death at home and SPC delivery at the end of life. Future research should focus on the mechanisms of these disparities and on developing interventions to ensure equitable and consistent SPC access.


Assuntos
COVID-19 , Neoplasias , Adulto , Masculino , Humanos , Idoso , Cuidados Paliativos , Estudos de Coortes , Pandemias , COVID-19/epidemiologia , Classe Social , Neoplasias/epidemiologia , Neoplasias/terapia , Morte
19.
J Am Med Dir Assoc ; 25(3): 532-538.e8, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38242534

RESUMO

BACKGROUND: Medications are often needed to manage distressing end-of-life symptoms (eg, pain, agitation). OBJECTIVES: In this study, we describe the variation in prescribing rates of symptom relief medications at the end of life among long-term care (LTC) decedents. We evaluate the extent these medications are prescribed in LTC homes and whether prescribing rates of end-of-life symptom management can be used as an indicator of quality end-of-life care. DESIGN: Retrospective cohort study using administrative health data. SETTING AND PARTICIPANTS: LTC decedents in all 626 publicly funded LTC homes in Ontario, Canada, between January 1, 2017, and March 17, 2020. METHODS: For each LTC home, we measured the percent of decedents who received 1+ prescription(s) for a subcutaneous end-of-life symptom management medication ("end-of-life medication") in their last 14 days of life. We then ranked LTC homes into quintiles based on prescribing rates. RESULTS: We identified 55,916 LTC residents who died in LTC. On average, two-thirds of decedents (64.7%) in LTC homes were prescribed at least 1 subcutaneous end-of-life medication in the last 2 weeks of life. Opioids were the most common prescribed medication (overall average prescribing rate of 62.7%). LTC homes in the lowest prescribing quintile had a mean of 37.3% of decedents prescribed an end-of-life medication, and the highest quintile mean was 82.5%. In addition, across these quintiles, the lowest prescribing quintile had a high average (30.3%) of LTC residents transferred out of LTC in the 14 days compared with the highest prescribing quintile (12.7%). CONCLUSIONS AND IMPLICATIONS: Across Ontario's LTC homes, there are large differences in prescribing rates for subcutaneous end-of-life symptom relief medications. Although future work may elucidate why the variability exists, this study provides evidence that administrative data can provide valuable insight into the systemic delivery of end-of-life care.


Assuntos
Assistência de Longa Duração , Assistência Terminal , Humanos , Estudos Retrospectivos , Morte , Ontário
20.
J Am Med Dir Assoc ; 25(6): 104955, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38438112

RESUMO

OBJECTIVE: To examine changes in the prescribing of end-of-life symptom management medications in long-term care (LTC) homes during the COVID-19 pandemic. DESIGN: Retrospective cohort study using routinely collected health administrative data in Ontario, Canada. SETTING AND PARTICIPANTS: We included all individuals who died in LTC homes between January 1, 2017, and March 31, 2021. We separated the study into 2 periods: before COVID-19 (January 1, 2017, to March 17, 2020) and during COVID-19 (March 18, 2020, to March 31, 2021). METHODS: For each LTC home, we measured the percentage of residents who died before and during COVID-19 who had a subcutaneous symptom management medication prescription in their last 14 days of life. We grouped LTC homes into quintiles based on their mean prescribing rates before COVID-19, and examined changes in prescribing during COVID-19 and COVID-19 outcomes across quintiles. RESULTS: We captured 75,438 LTC residents who died in Ontario's 626 LTC homes during the entire study period, with 19,522 (25.9%) dying during COVID-19. The mean prescribing rate during COVID-19 ranged from 46.9% to 79.4% between the lowest and highest prescribing quintiles. During COVID-19, the mean prescribing rate in the lowest prescribing quintile increased by 9.6% compared to before COVID-19. Compared to LTC homes in the highest prescribing quintile, homes in the lowest prescribing quintile experienced the highest proportion of COVID-19 outbreaks (73.4% vs 50.0%), the largest mean outbreak intensity (0.27 vs 0.09 cases/bed), the highest mean total days with a COVID-19 outbreak (72.7 vs 24.2 days), and the greatest proportion of decedents who were transferred and died outside of LTC (22.1% vs 8.6%). CONCLUSIONS AND IMPLICATIONS: LTC homes in Ontario had wide variations in the prescribing rates of end-of-life symptom management medications before and during COVID-19. Homes in the lower prescribing quintiles had more COVID-19 cases per bed and days spent in an outbreak.


Assuntos
COVID-19 , Assistência de Longa Duração , Casas de Saúde , SARS-CoV-2 , Assistência Terminal , Humanos , COVID-19/epidemiologia , Ontário/epidemiologia , Feminino , Masculino , Estudos Retrospectivos , Idoso , Idoso de 80 Anos ou mais , Pandemias , Padrões de Prática Médica/estatística & dados numéricos
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