21 results on '"Nissim R"'
Search Results
2. EP17.05-01 The Supportive Care Needs of Advanced Lung Cancer Patients Receiving Immuno- and Targeted Therapy at Different Stages of the Disease Trajectory
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Chu, A.K., Wheatley-Price, P., Aubry, T., Nissim, R., Kearns, E., and Lebel, S.
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- 2023
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3. EP15.03-02 Implementation of an Interdisciplinary Distress Assessment and Response Program for Family Caregivers
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Nouriany, N., Hannon, B., Nissim, R., Croke, J., s. Hussain, and Chu, P.Y.-T.
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- 2023
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4. Cost-Optimal Planning by Self-Interested Agents
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Nissim, R. and Ronen Brafman
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General Medicine - Abstract
As our world becomes better connected and autonomous agents no longer appear to be science fiction, a natural need arises for enabling groups of selfish agents to cooperate in generating plans for diverse tasks that none of them can perform alone in a cost-effective manner. While most work on planning for/by selfish agents revolves around finding stable solutions (e.g., Nash Equilibrium), this work combines techniques from mechanism design with a recently introduced method for distributed planning, in order to find cost optimal (and, thus, social welfare maximizing) solutions. Based on the Vickrey-Clarke-Groves mechanisms, we present both a centralized, and a privacy-preserving distributed mechanism.
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- 2013
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5. Electroanalysis via accumulation
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Nissim, R and Compton, R
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This thesis is concerned with the exploitation of carbon paste electrodes and heterogeneous mixtures, such as emulsions or solutions only containing miceller structures, for the accumulation or trapping of analytes of interest and their subsequent electroanalysis. In Chapter 4, the reduction of oxygen is studied in aqueous solutions of pH 6.22 - 8.01, at a carbon paste electrode fabricated from dioctyl phthalate (oil) and graphite. Two two-electron voltammetric waves are usually seen on carbon electrodes, associated with the formation of hydrogen peroxide and water, respectively. However, an additional signal is seen on the carbon paste electrode, which is attributed to the initial formation of the superoxide radical anion, O2.-. Data is presented to show that the predominant source of oxygen for this reaction is that dissolved in the carbon paste material, rather than in the aqueous solution, and that the superoxide is likely formed at the graphite/oil/water triple phase boundary. Kinetic and thermodynamic parameters for the O2/ O2.-redox couple are reported. In Chapter 5, a novel electrochemical procedure is developed that allows the amount of oxygen in cetyltrimethylammonium bromide (CTAB) micelles to be effectively titrated and hence the oxygen solubility in the micelles to be determined. The electroreduction of oxygen is studied in aqueous phosphate buffer solutions, using a microelectrode. The addition of micelle forming surfactants to solutions pre-saturated with oxygen leads to a reduction of the oxygen signal allowing the oxygen uptake by the micelles to be measured. For CTAB micelles, a concentration of oxygen of 6.7 ± 0.72 mM was observed, and shown to remain constant with increasing CTAB concentration in the bulk solution. The method has general applicability. In Chapter 6, the electrochemistry of nitroblue tetrazolium chloride (NBTC) is investigated in aqueous solutions of pH 6.97, on a glassy carbon macroelectrode and at a carbon fibre microelectrode; the adsorption properties of the electrochemically produced diformazan are also studied. A reduction and overall mechanism is proposed based on the analysis of the obtained results. A carbon paste electrode, fabricated using dioctyl phthalate and graphite powder, is then used as a non-enzymatic sensor. The sensitivity of the diformazan oxidation signal to the presence of superoxide is taken advantage of to detect superoxide. The paste electrode is first immersed in aqueous superoxide solutions. It is subsequently equilibrated with NBTC, by immersing it into aqueous NBTC solutions. The reduction of NBTC (by superoxide) thus takes place in the paste so allowing the quantification of the superoxide in the aqueous phase by means of the diformazan oxidation signal. A value for the practical limit of detection of 0.059 nM is obtained. In the final chapter (Chapter 7), a carbon paste recipe is optimised for the detection of phenols via a procedure in which phenols are allowed to accumulate in the paste via transfer from an aqueous solution prior to electro-oxidation. Importantly, the use of such paste electrodes is shown to substantially overcome the "self-passivating" behaviour of the phenol oxidation which usually constrains the electrode process to low concentrations and single-shot experiments. Here, 4-phenoxyphenol could be detected in the range from 2.5 to 40 μM, phenol from 2.5 μM to 60 mM and 4-methoxyphenol from 5.0 to 40 μM. The electrodes were re-usable without surface renewal for phenol concentrations up to 1.0 mM. The use of a bulk phenol solution for pre-concentration via absorptive uptake into a bulk phase followed by electrochemical quantification represents a new form of electroanalysis which is here termed "absorptive stripping voltammetry". This novel approach is complementary to "adsorptive stripping voltammetry", where accumulation ii occurs via adsorption on an electrode surface. The value of absorptive stripping voltammetry is demonstrated through the application of the approach to the sensitive detection of Δ9-tetrahydrocannabinol (THC) in both aqueous solutions of pH 10.0 and in synthetic saliva solutions; an optimised carbon paste electrode, fabricated from graphite powder and mineral oil, is here utilised. Practical limits of detection of 0.50 μM and 0.10 μM are determined for THC in stationary and stirred aqueous borate buffer solutions, respectively, while THC concentrations as low as 0.50 μM are detected in synthetic saliva solutions. "Absorptive Stripping Voltammetry" can thus be reliably applied to the detection of Δ9-tetrahydrocannabinol, after suitable optimisation of the assay.
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- 2016
6. Distributed Heuristic Forward Search for Multi-agent Planning
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Nissim, R., primary and Brafman, R., additional
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- 2014
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7. Understanding bereaved caregiver evaluations of the quality of dying and death: an application of cognitive interviewing methodology to the quality of dying and death questionnaire.
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Hales S, Gagliese L, Nissim R, Zimmermann C, and Rodin G
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CONTEXT: To increase the interpretability of quality of dying and death measures, research is needed to understand potential sources of response variation. OBJECTIVES: The aim of this study was to understand how bereaved caregivers assess the quality of dying and death experience with the Quality of Dying and Death questionnaire (QODD) by exploring the cognitive processes that underlie their evaluations. METHODS: Bereaved caregivers of former metastatic cancer patients were asked to take part in a cognitive interview protocol after formulating the 31 quality ratings that contribute to the total QODD score. Qualitative content analysis was applied to transcribed interviews, with a specific focus on the information retrieved, the judgment strategies used, and any difficulties participants reported. RESULTS: Twenty-two bereaved caregivers were interviewed with the protocol. Information that formed the basis of quality ratings referred to the perspective of the patient, the caregiver, other family/friends, or a combination of perspectives. Quality rating judgment strategies were generally comparative, and the most common standards of comparison were to 'a hoped for or ideal dying experience,' 'a state before the dying phase,' 'a state of distress/no distress,' or 'normalcy/humanness.' All respondents relied on multiple perspectives and standards of comparison when answering the QODD. CONCLUSION: These results suggest that the quality of dying and death is a complex construct based on multiple perspectives and standards of comparison. These findings have implications for clinical care, which, if it aspires to improve how dying and death are evaluated, must ensure that the family is the unit of care and aid in preparation for the dying and death experience.Copyright © 2012 by Elsevier Inc. [ABSTRACT FROM AUTHOR]
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- 2012
8. It is time to address fear of cancer recurrence in family caregivers: protocol for the feasibility and acceptability of a randomized pilot study of the online version of the Family Caregiver-Fear Of Recurrence Therapy (FC-FORT).
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Lamarche J, Nissim R, Avery J, Wong J, Maheu C, Lambert SD, Laizner AM, Jones J, Esplen MJ, and Lebel S
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Background: Fear of cancer recurrence (FCR) is common, persistent, and is associated with lower quality of life, impaired functioning, and psychological distress in cancer patients. Studies suggest that family caregivers of cancer patients experience equal or greater levels of FCR than patients themselves. In the past 5 years, several interventions have demonstrated their ability to reduce FCR among cancer patients and in patient-caregiver dyads. However, to date, no intervention exists to individually target family caregiver's FCR. The aims of the proposed pilot study are to (1) assess the feasibility and acceptability of the newly adapted Family Caregiver-Fear Of Recurrence Therapy (FC-FORT) intervention to inform a larger randomized control trial study, and (2) estimate the clinical significance of FC-FORT. Initial evaluation of FC-FORT revealed high user satisfaction and usability., Methods: A parallel, two-group, pilot randomized controlled trial comparing FC-FORT to a waitlist control (care as usual) will be conducted. Participant inclusion criteria are (a) women family caregivers taking care of adult cancer patients (no recurrence), (b) experiencing clinical levels of FCR, (c) access to a computer/internet connection, and (d) living in Canada. Participants (n = 36) will be recruited at Ottawa and Toronto hospitals, previous study participant pools, through social media and community partners across Canada. Participants in the intervention group will complete the FC-FORT intervention (7 consecutive weeks of virtual group therapy and homework). Participants in the control group will be offered the intervention after their participation in the study. All participants will be asked to complete questionnaire packages at baseline (T0), immediately post-intervention (7 weeks; T1) and at 3-months post-intervention (T2). Feasibility (e.g., recruitment, allocation, fidelity), acceptability (e.g., dropout, completion, satisfaction) and clinical significance of secondary outcomes will be evaluated (i.e., FCR illness uncertainty). Participants in the intervention group will be asked to complete measures of group cohesion and therapeutic alliance and take part in a semi-structured exit interview exploring their overall experience with FC-FORT., Discussion: This project will evaluate the acceptability and feasibility of the newly adapted FC-FORT to inform a larger trial., Trial Registration: NCT, NCT05441384. Registered July 1st, 2022, https://classic., Clinicaltrials: gov/ct2/show/NCT05441384., Competing Interests: Declarations Ethics approval and consent to participate Ethical approval was granted from the University of Ottawa Ethics Committee (Reference Number H-05–20-5584), The Ottawa Hospital Research Institute’s Ottawa Health Science Network Research Ethics Board (Reference Number 20230147-01H) and The University Health Network’s Research Ethics Board (Reference Number 21–5060.3). All participants will provide informed consent by acknowledging that they have read and understood the Consent Form before beginning the group intervention. Any amendments to the study protocol will be communicated to the University’s Ethics Committee for formal approval. Consent for publication Not applicable. Competing interests The authors declare no competing interests., (© 2024. The Author(s).)
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- 2024
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9. Decision-making and autonomy among participants in early-phase cancer immunotherapy trials: a qualitative study.
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Avery J, Bell JAH, Baryolay K, Rodin G, Nissim R, and Balneaves LG
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- Adult, Humans, Patient Participation psychology, Informed Consent, Qualitative Research, Immunotherapy, Decision Making, Neoplasms therapy, Neoplasms psychology
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Background: Participants considering early-phase cancer clinical trials (CTs) need to understand the unique risks and benefits prior to providing informed consent. This qualitative study explored the factors that influence patients' decisions about participating in early-phase cancer immunotherapy CTs through the ethical lens of relational autonomy., Methods: Using an interpretive descriptive design, interviews were conducted with 21 adult patients with advanced cancer who had enrolled in an early-phase CT. Data was analyzed using relational autonomy ethical theory and constant comparative analysis., Results: The extent to which participants perceived themselves as having a choice to participate in early-phase cancer immunotherapy CTs was a central construct. Perceptions of choice varied according to whether participants characterized their experience as an act of desperation or as an opportunity to receive a novel treatment. Intersecting psychosocial and structural factors influenced participants' decision making about participating in early-phase cancer immunotherapy trials. These relational factors included: (1) being provided with hope; (2) having trust; (3) having the ability to withdraw; and (4) timing constraints., Conclusions: Findings highlight the continuum of perceived choice that exists among patients with cancer when considering participation in early-phase cancer immunotherapy CTs. All participants were interpreted as exhibiting some degree of relational autonomy within the psychosocial and structural context of early-phase CT decision making. This study offers insights into the intersection of cancer care delivery, personal beliefs and values, and established CT processes and structures that can inform future practices and policies associated with early-phase cancer immunotherapy CTs to better support patients in making informed decisions., (© 2024. The Author(s).)
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- 2024
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10. Perspectives of Canadian health leaders on the relationship between medical assistance in dying and palliative and end-of-life care services: a qualitative study.
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Shapiro GK, Tong E, Nissim R, Zimmermann C, Allin S, Gibson JL, Lau SCL, Li M, and Rodin G
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- Humans, Canada, Qualitative Research, Medical Assistance, Palliative Care, Suicide, Assisted, Terminal Care
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Background: Medical assistance in dying (MAiD) was legalized in Canada in 2016, but coordination of MAiD and palliative and end-of-life care (PEOLC) services remains underdeveloped. We sought to understand the perspectives of health leaders across Canada on the relationship between MAiD and PEOLC services and to identify opportunities for improved coordination., Methods: In this quantitative study, we purposively sampled health leaders across Canada with expertise in MAiD, PEOLC, or both. We conducted semi-structured interviews between April 2021 and January 2022. Interview transcripts were coded independently by 2 researchers and reconciled to identify key themes using content analysis. We applied the PATH framework for Integrated Health Services to guide data collection and analysis., Results: We conducted 36 interviews. Participants expressed diverse views about the optimal relationship between MAiD and PEOLC, and the desirability of integration, separation, or coordination of these services. We identified 11 themes to improve the relationship between the services across 4 PATH levels: client-centred services (e.g., educate public); health operations (e.g., cultivate compassionate and proactive leadership); health systems (e.g., conduct broad and inclusive consultation and planning); and intersectoral initiatives (e.g., provide standard practice guidelines across health care systems)., Interpretation: Health leaders recognized that cooperation between MAiD and PEOLC services is required for appropriate referrals, care coordination, and patient care. They identified the need for public and provider education, standardized practice guidelines, relationship-building, and leadership. Our findings have implications for MAiD and PEOLC policy development and clinical practice in Canada and other jurisdictions., Competing Interests: Competing interests: Gilla Shapiro reports receiving a Canadian Institutes of Health Research (CIHR) 2019 Fellowship Award (MFE 171271), in support of the present manuscript. Dr. Shapiro reports receiving consulting fees from the World Health Organization, honoraria from Toronto Public Health, and a CIHR funding grant (no. 185783), all outside the submitted work. Madeline Li reports receiving a CIHR project grant in support of longitudinal MAID research and income as the project lead and working group chair of the Canadian Association of MAiD Assessors and Providers MAiD Curriculum project. Dr. Li has also received honoraria from Memorial Sloan Kettering Grand Rounds, Southlake Grand Rounds, Tulane University School of Medicine, and the Korean Psycho-Oncology Society, as well as payment for expert testimony in the case of Lamb v. Attorney General of Canada (all outside the submitted work). Dr. Li reports serving as Director of Medicine of the Board of Canadian Association of Psychosocial Oncology (CAPO) and Chair, Research Advisory Committee, CAPO (unpaid positions). No other competing interests were declared., (© 2024 CMA Impact Inc. or its licensors.)
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- 2024
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11. It's time to address fear of cancer recurrence in family caregivers: usability study of an virtual version of the Family Caregiver-Fear Of Recurrence Therapy (FC-FORT).
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Lamarche J, Cusson A, Nissim R, Avery J, Wong J, Maheu C, Lambert SD, Laizner AM, Jones J, Esplen MJ, and Lebel S
- Abstract
Background: Family caregivers of cancer survivors experience equal or greater levels of fear of cancer recurrence (FCR) than survivors themselves. Some interventions have demonstrated their ability to reduce FCR among cancer survivors and dyads (patient and caregivers). However, to date, no validated intervention exists to focus solely on family caregiver's FCR., Objectives: This study aimed to (1) adapt the evidence-based in-person Fear Of Recurrence Therapy (FORT) for family caregivers (referred here in as FC-FORT) and to a virtual delivery format and (2) test its usability when offered virtually., Methods: The adaptation of FC-FORT was overseen by an advisory board and guided by the Information Systems Research Framework. Following this adaptation, female family caregivers and therapists were recruited for the usability study. Participants took part in 7 weekly virtual group therapy sessions, a semi-structured exit interview and completed session feedback questionnaires. Therapists were offered a virtual training and weekly supervision. Fidelity of treatment administration was assessed each session. Quantitative data were analyzed using descriptive statistics. Exit interviews were transcribed verbatim using NVivo Transcription and coded using conventional content analysis. Results were presented back to the advisory board to further refine FC-FORT., Results: The advisory board ( n = 16) met virtually on 7 occasions to adapt FC-FORT (i.e., patient manuals, virtual format) and discuss recruitment strategies. Minor (e.g., revised text, adapted materials to virtual format) and major adaptations (e.g., added and rearranged sessions) were made to FC-FORT and subsequently approved by the advisory board. Four family caregivers and three therapists took part in the first round of the usability testing. Six family caregivers and the same three therapists took part in the second round. Overall, participants were very satisfied with FC-FORT's usability. Qualitative analysis identified 4 key themes: usability of FC-FORT, satisfaction and engagement with content, group cohesion, and impact of FC-FORT. All participants indicated that they would recommend FC-FORT to others as is., Conclusions: Using a multidisciplinary advisory board, our team successfully adapted FC-FORT and tested its usability using videoconferencing. Results from this study indicate that the efficacy and acceptability of FC-FORT are now ready to be tested in a larger pilot study., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (© 2023 Lamarche, Cusson, Nissim, Avery, Wong, Maheu, Lambert, Laizner, Jones, Esplen and Lebel.)
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- 2023
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12. Interventions to improve outcomes for caregivers of patients with advanced cancer: a meta-analysis.
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Chow R, Mathews JJ, Cheng EY, Lo S, Wong J, Alam S, Hannon B, Rodin G, Nissim R, Hales S, Kavalieratos D, Quinn KL, Tomlinson G, and Zimmermann C
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- Adult, Humans, Caregivers psychology, Mental Health, Anxiety etiology, Quality of Life, Neoplasms therapy, Neoplasms psychology
- Abstract
Background: Family caregivers of patients with advanced cancer often have poor quality of life (QOL) and mental health. We examined the effectiveness of interventions offering support for caregivers of patients with advanced cancer on caregiver QOL and mental health outcomes., Methods: We searched Ovid MEDLINE, EMBASE, Cochrane CENTRAL, and Cumulative Index to Nursing and Allied Health Literature databases from inception through June 2021. Eligible studies reported on randomized controlled trials for adult caregivers of adult patients with advanced cancer. Meta-analysis was conducted for primary outcomes of QOL, physical well-being, mental well-being, anxiety, and depression, from baseline to follow-up of 1-3 months; secondary endpoints were these outcomes at 4-6 months and additional caregiver burden, self-efficacy, family functioning, and bereavement outcomes. Random effects models were used to generate summary standardized mean differences (SMD)., Results: Of 12 193 references identified, 56 articles reporting on 49 trials involving 8554 caregivers were eligible for analysis; 16 (33%) targeted caregivers, 19 (39%) patient-caregiver dyads, and 14 (29%) patients and their families. At 1- to 3-month follow-up, interventions had a statistically significant effect on overall QOL (SMD = 0.24, 95% confidence interval [CI] = 0.10 to 0.39); I2 = 52.0%), mental well-being (SMD = 0.14, 95% CI = 0.02 to 0.25; I2 = 0.0%), anxiety (SMD = 0.27, 95% CI = 0.06 to 0.49; I2 = 74.0%), and depression (SMD = 0.34, 95% CI = 0.16 to 0.52; I2 = 64.4) compared with standard care. In narrative synthesis, interventions demonstrated improvements in caregiver self-efficacy and grief., Conclusions: Interventions targeting caregivers, dyads, or patients and families led to improvements in caregiver QOL and mental health. These data support the routine provision of interventions to improve well-being in caregivers of patients with advanced cancer., (© The Author(s) 2023. Published by Oxford University Press.)
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- 2023
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13. The impact of COVID-19 on the experiences of patients and their family caregivers with medical assistance in dying in hospital.
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Tong E, Nissim R, Selby D, Bean S, Isenberg-Grzeda E, Thangarasa T, Rodin G, Li M, and Hales S
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- Humans, Female, Aged, Middle Aged, Male, Pandemics, Hospitals, Medical Assistance, Caregivers, COVID-19
- Abstract
Background: The COVID-19 pandemic and its containment measures have drastically impacted end-of-life and grief experiences globally, including those related to medical assistance in dying (MAiD). No known qualitative studies to date have examined the MAiD experience during the pandemic. This qualitative study aimed to understand how the pandemic impacted the MAiD experience in hospital of persons requesting MAiD (patients) and their loved ones (caregivers) in Canada., Methods: Semi-structured interviews were conducted with patients who requested MAiD and their caregivers between April 2020 and May 2021. Participants were recruited during the first year of the pandemic from the University Health Network and Sunnybrook Health Sciences Centre in Toronto, Canada. Patients and caregivers were interviewed about their experience following the MAiD request. Six months following patient death, bereaved caregivers were interviewed to explore their bereavement experience. Interviews were audio-recorded, transcribed verbatim, and de-identified. Transcripts were analyzed using reflexive thematic analysis., Results: Interviews were conducted with 7 patients (mean [SD] age, 73 [12] years; 5 [63%] women) and 23 caregivers (mean [SD] age, 59 [11] years; 14 [61%] women). Fourteen caregivers were interviewed at the time of MAiD request and 13 bereaved caregivers were interviewed post-MAiD. Four themes were generated with respect to the impact of COVID-19 and its containment measures on the MAiD experience in hospital: (1) accelerating the MAiD decision; (2) compromising family understanding and coping; (3) disrupting MAiD delivery; and (4) appreciating rule flexibility., Conclusions: Findings highlight the tension between respecting pandemic restrictions and prioritizing control over the dying circumstances central to MAiD, and the resulting impact on patient and family suffering. There is a need for healthcare institutions to recognize the relational dimensions of the MAiD experience, particularly in the isolating context of the pandemic. Findings may inform strategies to better support those requesting MAiD and their families during the pandemic and beyond., (© 2023. The Author(s).)
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- 2023
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14. Mental health and well-being of unpaid caregivers: a cross-sectional survey protocol.
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Parry M, Beleno R, Nissim R, Baiden D, Baxter P, Betini R, Bjørnnes AK, Burnside H, Gaetano D, Hemani S, McCarthy J, Nickerson N, Norris C, Nylén-Eriksen M, Owadally T, Pilote L, Warkentin K, Coupal A, Hasan S, Ho M, Kulbak O, Mohammed S, Mullaly L, Theriault J, Wayne N, Wu W, Yeboah EK, O'Hara A, and Peter E
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- Humans, Male, Female, Adolescent, Adult, Cross-Sectional Studies, Mental Health, Canada epidemiology, Gender Identity, Caregivers psychology, COVID-19 epidemiology
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Introduction: Unpaid caregiving, care provided by family/friends, is a public health issue of increasing importance. COVID-19 worsened the mental health conditions of unpaid caregivers, increasing substance/drug use and early development of chronic disease. The impact of the intersections of race and ethnicity, sex, age and gender along with unpaid care work and caregivers' health and well-being is unknown. The aim of this study is to describe the inequities of caregiver well-being across the intersections of race and ethnicity, sex, age and gender using a cross-sectional survey design., Methods and Analysis: We are collaborating with unpaid caregivers and community organisations to recruit a non-probability sample of unpaid caregivers over 18 years of age (n=525). Recruitment will focus on a target sample of 305 South Asian, Chinese and Black people living in Canada, who represent 60% of the Canadian racial and ethnic populations. The following surveys will be combined into one survey: Participant Demographic Form, Caregiver Well-Being Index, interRAI Self-report of Carer Needs and the GENESIS (GENdEr and Sex DetermInantS of Cardiovascular Disease: From Bench to Beyond-Premature Acute Coronary Syndrome) PRAXY Questionnaire. Sample characteristics will be summarised using descriptive statistics. The scores from the Caregiver Well-Being Index will be dichotomised into fair/poor and good/excellent. A two-stage analytical strategy will be undertaken using logistic regression to model fair/poor well-being and good/excellent well-being according to the following axes of difference set a priori: sex, race and ethnicity, gender identity, age, gender relations, gender roles and institutionalised gender. The first stage of analysis will model the main effects of each factor and in the second stage of analysis, interaction terms will be added to each model., Ethics and Dissemination: The University of Toronto's Health Sciences Research Ethics Board granted approval on 9 August 2022 (protocol number: 42609). Knowledge will be disseminated in pamphlets/infographics/email listservs/newsletters and journal articles, conference presentation and public forums, social media and through the study website., Trial Registration Number: This is registered in the Open Sciences Framework with a Registration DOI as follows: https://doi.org/10.17605/OSF.IO/PB9TD., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
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- 2023
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15. Traumatic stress symptoms in family caregivers of patients with acute leukaemia: protocol for a multisite mixed methods, longitudinal, observational study.
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Jibb LA, Nanos SM, Alexander S, Malfitano C, Rydall A, Gupta S, Schimmer AD, Zimmermann C, Hales S, Nissim R, Marmar C, Schultebraucks K, Mah K, and Rodin G
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- Adult, Humans, Child, Caregivers psychology, Surveys and Questionnaires, Ontario, Observational Studies as Topic, Neoplasms psychology, Leukemia therapy
- Abstract
Introduction: The diagnosis, progression or recurrence of cancer is often highly traumatic for family caregivers (FCs), but systematic assessments of distress and approaches for its prevention and treatment are lacking. Acute leukaemia (AL) is a life-threatening cancer of the blood, which most often presents acutely, requires intensive treatment and is associated with severe physical symptoms. Consequently, traumatic stress may be common in the FCs of patients with AL. We aim to determine the prevalence, severity, longitudinal course and predictors of traumatic stress symptoms in FCs of patients with AL in the first year after diagnosis, and to understand their lived experience of traumatic stress and perceived support needs., Methods and Analysis: This two-site longitudinal, observational, mixed methods study will recruit 223 adult FCs of paediatric or adult patients newly diagnosed with AL from two tertiary care centres. Quantitative data will be collected from self-report questionnaires at enrolment, and 1, 3, 6, 9 and 12 months after admission to hospital for initial treatment. Quantitative data will be analysed using descriptive and machine learning approaches and a multilevel modelling (MLM) approach will be used to confirm machine learning findings. Semi-structured qualitative interviews will be conducted at 3, 6 and 12 months and analysed using a grounded theory approach., Ethics and Dissemination: This study is funded by the Canadian Institutes of Health Research (CIHR number PJT 173255) and has received ethical approval from the Ontario Cancer Research Ethics Board (CTO Project ID: 2104). The data generated have the potential to inform the development of targeted psychosocial interventions for traumatic stress, which is a public health priority for high-risk populations such as FCs of patients with haematological malignancies. An integrated and end-of-study knowledge translation strategy that involves FCs and other stakeholders will be used to interpret and disseminate study results., Competing Interests: Competing interests: ADS has received research funding from Takeda Pharmaceuticals, BMS and Medivir AB, and consulting fees/honorarium from Takeda, Novartis, Jazz, and Otsuka Pharmaceuticals. ADS is named on a patent application for the use of Double Negative T (DNT) cells to treat AML., (© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
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- 2022
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16. A Race to the End: Family Caregivers' Experience of Medical Assistance in Dying (MAiD)-a Qualitative Study.
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Thangarasa T, Hales S, Tong E, An E, Selby D, Isenberg-Grzeda E, Li M, Rodin G, Bean S, Bell JAH, and Nissim R
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- Canada, Caregivers psychology, Humans, Medical Assistance, Suicide, Assisted, Terminal Care
- Abstract
Background: The June 2016 legalization of medical assistance in dying (MAiD) provided an added layer of choice to end-of-life care in Canada. Family caregivers play an important role in patient end-of-life decision-making. They may experience unique psychological burden or distress associated with their role. However, we know little about the caregiver experience associated with patient MAiD requests and the nature of psychosocial supports caregivers require before, during, and following MAiD intervention., Objective: The objective of this study is to better understand the caregiver experience of MAiD within the Canadian legal landscape following Bill C-14., Design: Caregiver experience was examined based on qualitative, semi-structured interviews., Participants: A total of 22 caregivers of patients who had requested MAiD were interviewed., Approach: Transcripts were recorded, transcribed, and analyzed based on grounded theory methodology., Key Results: The caregiver experience of MAiD within the legal framework was found to be understood as a "race to the end," with the ultimate goal of creating an ideal dying experience for the patient while balancing a threat to capacity that would undermine their access to MAiD. Caregivers can be described within the overarching framework as either co-runners or onlookers. Sources of caregiver distress were linked to these roles., Conclusions: The "race to the end" theoretical model contributes new knowledge and understanding that can inform the development of tailored support services for caregivers, the impact of legislative changes on this population, and future research examining decision-making near end of life and the caregiver experience., (© 2021. Society of General Internal Medicine.)
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- 2022
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17. Exploring key stakeholders' attitudes and opinions on medical assistance in dying and palliative care in Canada: a qualitative study protocol.
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Shapiro GK, Tong E, Nissim R, Zimmermann C, Allin S, Gibson J, Li M, and Rodin G
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- Attitude, Canada, Humans, Medical Assistance, Palliative Care, Pandemics, SARS-CoV-2, COVID-19, Suicide, Assisted
- Abstract
Introduction: Canadians have had legal access to medical assistance in dying (MAiD) since 2016. However, despite substantial overlap in populations who request MAiD and who require palliative care (PC) services, policies and recommended practices regarding the optimal relationship between MAiD and PC services are not well developed. Multiple models are possible, including autonomous delivery of these services and formal or informal coordination, collaboration or integration. However, it is not clear which of these approaches are most appropriate, feasible or acceptable in different Canadian health settings in the context of the COVID-19 pandemic and in the post-pandemic period. The aim of this qualitative study is to understand the attitudes and opinions of key stakeholders from the government, health system, patient groups and academia in Canada regarding the optimal relationship between MAiD and PC services., Methods and Analysis: A qualitative, purposeful sampling approach will elicit stakeholder feedback of 25-30 participants using semistructured interviews. Stakeholders with expertise and engagement in MAiD or PC who hold leadership positions in their respective organisations across Canada will be invited to provide their perspectives on the relationship between MAiD and PC; capacity-building needs; policy development opportunities; and the impact of the COVID-19 pandemic on the relationship between MAiD and PC services. Transcripts will be analysed using content analysis. A framework for integrated health services will be used to assess the impact of integrating services on multiple levels., Ethics and Dissemination: This study has received ethical approval from the University Health Network Research Ethics Board (No 19-5518; Toronto, Canada). All participants will be required to provide informed electronic consent before a qualitative interview is scheduled, and to provide verbal consent prior to the start of the qualitative interview. Findings from this study could inform healthcare policy, the delivery of MAiD and PC, and enhance the understanding of the multilevel factors relevant for the delivery of these services. Findings will be disseminated in conferences and peer-reviewed publications., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2021
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18. Medical Assistance in Dying in patients with advanced cancer and their caregivers: a mixed methods longitudinal study protocol.
- Author
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Li M, Shapiro GK, Klein R, Barbeau A, Rydall A, Bell JAH, Nissim R, Hales S, Zimmermann C, Wong RKS, and Rodin G
- Subjects
- Adult, Canada, Caregivers, Humans, Longitudinal Studies, Observational Studies as Topic, Ontario, Quality of Life, Neoplasms therapy, Suicide, Assisted
- Abstract
Background: The legal criteria for medical assistance in dying (MAiD) for adults with a grievous and irremediable medical condition were established in Canada in 2016. There has been concern that potentially reversible states of depression or demoralization may contribute to the desire for death (DD) and requests for MAiD. However, little is known about the emergence of the DD in patients, its impact on caregivers, and to what extent supportive care interventions affect the DD and requests for MAiD. The present observational study is designed to determine the prevalence, predictors, and experience of the DD, requests for MAiD and MAiD completion in patients with advanced or metastatic cancer and the impact of these outcomes on their primary caregivers., Methods: A cohort of patients with advanced or metastatic solid tumour cancers and their primary caregivers will be recruited from a large tertiary cancer centre in Toronto, Ontario, Canada, to a longitudinal, mixed methods study. Participants will be assessed at baseline for diagnostic information, sociodemographic characteristics, medical history, quality of life, physical and psychological distress, attitudes about the DD and MAiD, communication with physicians, advance care planning, and use of psychosocial and palliative care interventions. Measures will subsequently be completed every six months and at the time of MAiD requests. Quantitative assessments will be supplemented by qualitative interviews in a subset of participants, selected using quota sampling methods., Discussion: This study has the potential to add importantly to our understanding of the prevalence and determinants of the DD, MAiD requests and completions in patients with advanced or metastatic cancer and of the experience of both patients and caregivers in this circumstance. The findings from this study may also assist healthcare providers in their conversations about MAiD and the DD with patients and caregivers, inform healthcare providers to ensure appropriate access to MAiD, and guide modifications being considered to broaden MAiD legislation and policy., (© 2021. The Author(s).)
- Published
- 2021
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19. Health Care Professionals' Reports of Cancer Pain Cues Among Older People With Delirium: A Qualitative-Quantitative Content Analysis.
- Author
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Graham CA, Chaves G, Harrison R, Gauthier LR, Nissim R, Zimmermann C, Chan V, Rodin G, Stevens B, and Gagliese L
- Subjects
- Aged, Cues, Health Personnel, Humans, Psychomotor Agitation, Cancer Pain, Delirium diagnosis, Neoplasms complications
- Abstract
Context: Health care professionals (HCPs) currently judge pain presence and intensity in patients with delirium despite the lack of a valid, standardized assessment protocol. However, little is known about how they make these judgments. This information is essential to develop a valid and reliable assessment tool., Objectives: To identify pain cues that HCPs report to judge pain in patients with delirium and to examine whether the pain cues differed based on patient cognitive status and delirium subtype., Methods: Mixed qualitative-quantitative design. Doctors and nurses were recruited. All participants provided written informed consent, and before the recorded interview, demographic information was collected; then participants were asked to describe their practices and beliefs regarding pain assessment and management with older patients who are cognitively intact and patients with delirium. Interviews were transcribed verbatim and coded for pain cues. Coded data were imported into SPSS software (IBM SPSS Statistics Version 24; IBM Corporation, Armonk, NY) to conduct bivariate analyses., Results: The pain cue self-report was stated more often for intact than for delirium patients (χ
2 [1; N = 106] = 22.56; P < 0.001). HCPs stated yelling (χ2 [2; N = 159] = 11.14; P = 0.004), when describing pain in hyperactive than in hypoactive and mixed delirium patients; and significantly more HCPs stated grimace (χ2 [2; N = 159] = 6.88; P = 0.03), when describing pain in hypoactive than hyperactive and mixed patients., Conclusion: This study outlines how HCPs conduct pain assessment in patients who are delirious and, also, identifies pain behavior profiles for the subtypes of delirium., (Copyright © 2020 American Academy of Hospice and Palliative Medicine. Published by Elsevier Inc. All rights reserved.)- Published
- 2020
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20. Managing Cancer And Living Meaningfully: study protocol for a randomized controlled trial.
- Author
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Lo C, Hales S, Rydall A, Panday T, Chiu A, Malfitano C, Jung J, Li M, Nissim R, Zimmermann C, and Rodin G
- Subjects
- Adaptation, Psychological, Attitude to Death, Clinical Protocols, Communication, Cost of Illness, Emotions, Humans, Neoplasms diagnosis, Neoplasms mortality, Neoplasms psychology, Ontario, Professional-Patient Relations, Research Design, Stress, Psychological diagnosis, Stress, Psychological mortality, Stress, Psychological psychology, Surveys and Questionnaires, Time Factors, Treatment Outcome, Neoplasms therapy, Psychotherapy, Brief, Quality of Life, Stress, Psychological therapy
- Abstract
Background: We have developed a novel and brief semi-structured psychotherapeutic intervention for patients with advanced or metastatic cancer, called Managing Cancer And Living Meaningfully. We describe here the methodology of a randomized controlled trial to test the efficacy of this treatment to alleviate distress and promote well-being in this population., Methods/design: The study is an unblinded randomized controlled trial with 2 conditions (intervention plus usual care versus usual care alone) and assessments at baseline, 3 and 6 months. The site is the Princess Margaret Cancer Centre, part of the University Health Network, in Toronto, Canada. Eligibility criteria include: ≥ 18 years of age; English fluency; no cognitive impairment; and diagnosis of advanced cancer. The 3-6 session intervention is manualized and allows for flexibility to meet individual patients' needs. It is delivered over a 3-6 month period and provides reflective space for patients (and their primary caregivers) to address 4 main domains: symptom management and communication with health care providers; changes in self and relations with close others; sense of meaning and purpose; and the future and mortality. Usual care at the Princess Margaret Cancer Centre includes distress screening and referral as required to in-hospital psychosocial and palliative care services. The primary outcome is frequency of depressive symptoms and the primary endpoint is at 3 months. Secondary outcomes include diagnosis of major or minor depression, generalized anxiety, death anxiety, spiritual well-being, quality of life, demoralization, attachment security, posttraumatic growth, communication with partners, and satisfaction with clinical interactions., Discussion: Managing Cancer And Living Meaningfully has the potential to relieve distress and promote psychological well-being in patients with advanced cancer and their primary caregivers. This trial is being conducted to determine its benefit and inform its dissemination. The intervention has cross-national relevance and training workshops have been held thus far with clinicians from North and South America, Europe, the Middle East, Asia and Africa., Trial Registration: ClinicalTrials.gov NCT01506492 4 January 2012.
- Published
- 2015
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21. Absorptive stripping voltammetry for cannabis detection.
- Author
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Nissim R and Compton RG
- Abstract
Background: Given that Δ(9)-tetrahydrocannabinol, the active constituent of cannabis, has been shown to greatly reduce driving ability, thus being linked to many drug driving accidents, its reliable detection is of great importance., Results: An optimised carbon paste electrode, fabricated from graphite powder and mineral oil, is utilised for the sensitive detection of Δ(9)-tetrahydrocannabinol (THC) in both aqueous solutions of pH 10.0 and in synthetic saliva solutions. "Absorptive Stripping Voltammetry" is exploited to that effect and the paste is used to pre-concentrate the carbon paste electrode with the target molecule. Practical limits of detection of 0.50 μM and 0.10 μM are determined for THC in stationary and stirred aqueous borate buffer solutions, respectively. Theoretical limits of detection are also calculated; values of 0.48 nM and 0.41 nM are determined for stationary and stirred THC aqueous borate buffer solutions, respectively. THC concentrations as low as 0.50 μM are detected in synthetic saliva solutions. The sensitivity of the sensor was 0.12 μA μM(-1), 0.84 μA μM(-1) and 0.067 μA μM(-1) for the stationary buffer, the stirred buffer and the saliva matrix, respectively., Conclusions: "Absorptive Stripping Voltammetry" can be reliably applied to the detection of Δ(9)-tetrahydrocannabinol, after suitable optimisation of the assay. Usefully low practical limits of detection can be achieved.
- Published
- 2015
- Full Text
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