Recovery From Dialysis-Treated Acute Kidney Injury in Patients With Cirrhosis: A Population-Based Study.

RATIONALE & OBJECTIVE: The decision to initiate kidney replacement therapy (KRT) for acute kidney injury (AKI) in cirrhosis remains controversial because it is unclear which patients will benefit. We sought to characterize factors associated with recovery from KRT-treated AKI in patients with cirrhosis to inform shared clinical decision-making. STUDY DESIGN: Population-based retrospective cohort study. SETTING & PARTICIPANTS: Adult patients from Ontario, Canada, identified using administrative data to have cirrhosis at the time of hospital admission with AKI (based on serum creatinine level) who were treated with KRT (January 1, 2009, to December 31, 2016) and followed up until the end of 2017. EXPOSURES: Demographic characteristics and comorbidities before admission. OUTCOMES: Kidney recovery defined as the absence of KRT for at least 30 days. ANALYTICAL APPROACH: The cumulative incidences of kidney recovery, death, and liver transplant were calculated at 1, 3, 6, and 12 months, and independent predictors of kidney recovery were evaluated using Fine and Gray competing risk regression models that generated subdistribution hazards ratios (sHRs). RESULTS: Overall, 722 patients were included (median age, 61 [interquartile range, 54-68] years; Model for End-Stage Liver Disease (MELD)-Na score, 26 [interquartile range, 22-34]; 66% were male; 52% had viral hepatitis, 25% nonalcoholic fatty liver disease, 18% alcohol-associated liver disease). The cumulative incidences of kidney recovery at 1, 3, 6, and 12 months were 3%, 22%, 25%, and 26%, respectively. Higher MELD-Na score (sHR per 5 units greater, 0.72 [95% CI, 0.65-0.80]), acute-on-chronic liver failure (sHR, 0.61 [95% CI, 0.43-0.86]), and sepsis (sHR, 0.57 [95% CI, 0.41-0.81]) were associated with a lower hazard of kidney recovery, whereas those on a liver transplant waitlist (sHR, 3.10 [95% CI, 1.96-4.88]) and who were admitted to a teaching hospital (sHR, 1.48 [95% CI, 1.05-2.08]) were more likely to experience kidney recovery. LIMITATIONS: Observational design, AKI etiology not identified. CONCLUSIONS: Kidney recovery from KRT occurred in only one quarter of patients and was very unlikely after 3 months. These findings provide information regarding prognosis that may guide decisions regarding KRT initiation and continuation.

Social determinants of health and dialysis modality selection in patients with advanced chronic kidney disease: A retrospective cohort study.

BACKGROUND: Social determinants of health are non-medical factors that impact health. For patients with chronic kidney disease (CKD) progressing to kidney failure, the influence of social determinants of health on dialysis modality selection (haemodialysis vs. peritoneal dialysis (PD)) is incompletely understood. METHODS: Retrospective cohort study of 981 consecutive patients with advanced CKD referred to the Ottawa Hospital Multi-Care Kidney Clinic (Canada) who progressed to dialysis from 2010 to 2021. Multivariable logistic regression was used to measure odds ratios (OR) for the associations between social determinants of health (education, employment, marital status and residence) and modality of dialysis initiation. RESULTS: The mean age and estimated glomerular filtration rate were 64 and 18 mL/min/1.73 m2, respectively. Not having a high school degree was associated with lower odds of initiating dialysis via PD compared to having a college degree (29% vs. 48%, OR 0.55 (95% confidence interval (CI) 0.34-0.88)). Unemployment was associated with lower odds of initiating dialysis via PD compared to active employment (38% vs. 62%, OR 0.40 (95% CI 0.27-0.60)). Being single was associated with lower odds of initiating dialysis via PD compared to being married (35% vs. 48%, adjusted OR 0.52 (95% CI 0.39-0.70)). Living alone at home was associated with lower odds of initiating dialysis via PD compared to living at home with family (33% vs. 47%, adjusted OR 0.55 (95% CI 0.39-0.78)). CONCLUSIONS: Social determinants of health including education, employment, marital status and residence are associated with dialysis modality selection. Addressing these 'upstream' social factors may allow for more equitable outcomes during the transition from advanced CKD to kidney failure.

Patient Satisfaction With Breast Cancer Care Delivery at the National Cancer Institute of Sri Lanka: Does Language Play a Role?

PURPOSE: This study sought to examine whether there was an association between language barriers and patient satisfaction with breast cancer care in Sri Lanka. METHODS: A telephone-based survey was conducted in the three official languages (Sinhala, Tamil, or English) among adult women (older than 18 years) who had been treated for breast cancer within 6-12 months of diagnosis at the National Cancer Institute of Sri Lanka. The European Organisation for Research and Treatment of Cancer Satisfaction with Cancer Care core questionnaire was adapted to assess three main domains (physicians, allied health care professionals, and the organization). All scores were linearly transformed to a 0-100 scale, and subscores for domains were summarized using means and standard deviations. These were also calculated for the Sinhalese and Tamil groups and compared. RESULTS: The study included 72 participants (32 ethnically Tamil and 40 Sinhalese, with 100% concordance with preferred language). The most commonly reported best aspect of care (n = 25) involved affective behaviors of the physicians and nurses. Ease of access to the hospital performed poorest overall, with a mean satisfaction score of 54 (30.5). Clinic-related concerns were highlighted as the worst aspect of the care (n = 10), including long waiting times during clinic visits. Sixty-three percent of Tamil patients reported receiving none of their care in Tamil and 18% reported experiencing language barriers during their care. Tamil patients were less satisfied overall and reported lower satisfaction with care coordination (P = .005) and higher financial burden (P = 0.014). CONCLUSION: Ethnically Tamil patients were significantly less satisfied than their Sinhalese counterparts and experienced more language barriers, suggesting there is a need to improve access to language-concordant care in Sri Lanka.

Death and Dialysis Following Discharge From Chronic Kidney Disease Clinic: A Retrospective Cohort Study.

Background: Multidisciplinary care is recommended for patients with advanced chronic kidney disease (CKD). A formalized, risk-based approach to CKD management is being adopted in some jurisdictions. In Ontario, Canada, the eligibility criteria for multidisciplinary CKD care funding were revised between 2016 and 2018 to a 2 year risk of kidney replacement therapy (KRT) greater than 10% calculated by the 4-variable Kidney Failure Risk Equation (KFRE). Implementation of the risk-based approach has led to the discharge of prevalent CKD patients. Objective: The primary objective of this study was to determine the frequency of occurrence of death and KRT initiation in patients discharged from CKD clinic. Design: Retrospective cohort study. Setting: Single center multidisciplinary CKD clinic in Ontario, Canada. Patients: Four hundred and twenty five patients seen at least once in 2013 at the multidisciplinary CKD clinic. Measurements: Outcomes included discharge status, death, re-referral and KRT initiation. Reasons for discharge were recorded. Methods: Outcomes were extracted from available electronic medical records and the provincial death registry between the patient's initial clinic visit in 2013 and January 1, 2020. KFRE-2 scores were calculated using the 4-variable KFRE equation. The hazard rates of death and KRT after discharge due to stable eGFR/low KFRE were compared to patients who remained in the clinic. Results: Of the 425 CKD patients, 69 (16%) and 19 (4%) were discharged to primary care and general nephrology, respectively. Of those discharged, 7 (8%) were re-referred to nephrology or CKD clinic, while only 2 (2%) discharged patients required subsequent KRT. The hazard of mortality was reduced after discharge from the clinic due to stable eGFR/low KFRE (adjusted HR = 0.45 [95% CI, 0.25-0.78, P = .005]). Limitations: Single center, observational retrospective study design and unknown kidney function over time post discharge for most patients. Conclusions: Discharge of low risk patients from multidisciplinary CKD clinic appears feasible and safe, with fewer than 1 in 40 discharged patients subsequently initiated on KRT over the following 7 years.

Contexte: Des soins multidisciplinaires sont recommandés pour les patients atteints d'insuffisance rénale chronique (IRC) de stade avancé. Une approche officielle de gestion de l'IRC, axée sur le risque, est en cours d'adoption dans certaines juridictions. En Ontario, au Canada, les critères d'admissibilité pour le financement des soins multidisciplinaires d'IRC ont été révisés entre 2016 et 2018 en fonction d'un risque supérieur à 10 % d'amorcer une thérapie de remplacement rénal (TRR) dans les 2 ans (risque calculé par l'équation KFRE [Kidney Failure Risk Equation] à 4 variables). La mise en œuvre de cette approche fondée sur le risque a mené au congé des patients prévalents atteints d'IRC. Objectif: L'objectif principal de cette étude était de déterminer la fréquence des décès et de l'amorce d'une TRR chez les patients ayant reçu leur congé de la clinique d'IRC. Conception: Étude de cohorte rétrospective. Cadre: Une clinique multidisciplinaire d'IRC de l'Ontario (Canada). Sujets: 425 patients vus au moins une fois en 2013 à la clinique multidisciplinaire d'IRC. Mesures: L'état de santé au moment du congé, le décès, la réorientation du patient vers la clinique multidisciplinaire et l'initiation d'une TRR comptaient parmi les résultats d'intérêt. Les raisons du congé ont été enregistrées. Méthodologie: Les résultats ont été extraits des dossiers médicaux électroniques disponibles et du registre provincial des décès entre la première visite à la clinique en 2013 et le 1er janvier 2020. Les scores KFRE-2 ont été calculés avec l'équation KFRE à 4 variables. Le taux d'incidence de décès et de TRR suivant un congé motivé par un DFGe stable ou un faible score KFRE a été comparé à celui des patients restés à la clinique. Résultats: Des 425 patients inclus, 69 (16 %) avaient reçu leur congé en soins primaires et 19 (4 %) en néphrologie générale. Parmi les patients sortis, 7 (8 %) ont été réorientés vers une clinique de néphrologie ou d'IRC et seulement 2 (2 %) ont dû éventuellement amorcer une TRR. Un DFGe stable et un score KFRE faible ont contribué à réduire le taux de mortalité après le congé de la clinique (RR corrigé = 0,45 [IC à 95 %: 0,25-0,78; P = 0,005]). Limites: Étude rétrospective observationnelle dans un seul center. La fonction rénale au fil du temps après le congé de l'hôpital était inconnue pour la plupart des patients. Conclusion: Donner leur congé de la clinique multidisciplinaire d'IRC aux patients à faible risque apparaît possible et sûr; moins d'un patient sur 40 ayant dû amorcer une TRR dans les 7 années suivantes.

Independent External Validation and Comparison of Death and Kidney Replacement Therapy Prediction Models in Advanced CKD.

Rationale & Objective: The Kidney Failure Risk Equation (KFRE) is widely used to predict the risk of kidney replacement therapy (KRT) initiation in chronic kidney disease (CKD) stages G3-G5. The new Grams calculator developed for advanced CKD (stage G4+) predicts KRT initiation, cardiovascular events, and death by uniquely incorporating the competing risk of death. We aimed to validate this tool in a stage G4+ cohort for death and KRT. Study Design: Retrospective cohort study. Setting & Participants: 442 patients with CKD stage G4+ (mean ± SD age, 73 ± 12 years; mean ± SD estimated glomerular filtration rate, 20 ± 6.2 mL/min/1.73 m2) who visited the multidisciplinary CKD clinic at Kingston Health Sciences Center in Ontario, Canada. Outcomes & Analytical Approach: Discrimination and calibration were examined for the outcome of death using the 2- and 4-year Grams scores. The 2- and 5-year KFRE and 2- and 4-year Grams scores were compared in terms of discrimination and calibration for KRT. Results: There were 91, 161, and 206 death events and 90, 145, and 159 KRT events in our cohort at 2, 4, and 5 years, respectively. The Grams model demonstrated modest discrimination for death at 4 years (area under the curve [AUC] 0.70; 95% CI, 0.65-0.75) and performed worse at 2 years (AUC, 0.63; 95% CI, 0.57-0.70). It only overpredicted death by approximately 10% across most of the predicted range. Both models had similar discrimination for KRT at 2 years (KFRE AUC, 0.83; 95% CI, 0.78-0.88 and Grams AUC, 0.8; 95% CI, 0.76-0.87), 4 years (Grams AUC, 0.82; 95% CI, 0.77-0.86), and 5 years (KFRE AUC, 0.81; 95% CI, 0.76-0.85). There was excellent calibration for KRT using the 2-year KFRE and Grams values for predicted risk thresholds of ≤15% and using the 5-year KFRE and 4-year Grams values for predicted risk thresholds of ≤20%. At higher risk ranges, KFRE overpredicts and Grams underpredicts the KRT risk. Limitations: This is a single-center study with a primarily White cohort limited by smaller sample sizes at the higher ranges of the predicted risks, particularly for the Grams calculator. Conclusions: The Grams model provides moderately accurate death predictions, and consideration should be given to its incorporation into patient education and advanced care planning. Both the Grams and KFRE models remain clinically useful for determining KRT risks in advanced CKD.

Child Maltreatment and Public Health: Do Gaps in Response during the COVID-19 Pandemic Highlight Jurisdictional Complexities?

Objective: Countermeasures introduced during the COVID-19 pandemic produced an environment that placed some children at increased risk of maltreatment at the same time as there were decreased opportunities for identifying and reporting abuse. Unfortunately, coordinated government responses to address child protection since the start of the pandemic have been limited in Canada. As an exploratory study to examine the potential academic evidence base and location of expertise that could have been used to inform COVID-19 pandemic response, we undertook a review of child maltreatment research across three prominent Canadian professional journals in social work, medicine and public health. Methods: We conducted a pre-pandemic, thirteen-year (2006-2019) archival analysis of all articles published in the Canadian Social Work Review (CSWR), the Canadian Medical Association Journal (CMAJ) and the Canadian Journal of Public Health (CJPH) and identified the research articles that related directly to child maltreatment, child protection or the child welfare system in Canada. Results: Of 11,824 articles published across the three journals, 20 research papers relating to child maltreatment, child protection or the child welfare system were identified (CJPH = 7; CMAJ = 3; CSWR = 10). There was no obvious pattern in article topics by discipline. Discussion: Taking these three prominent professional journals as a portal into research in these disciplines, we highlight the potential low volume of academic child maltreatment research despite the importance of the topic and irrespective of discipline. We believe that urgent transdisciplinary collaboration and overall awareness raising for child protection is called for at the time of the COVID-19 pandemic as well as beyond in Canada.

Cannabis and its derivatives for the use of motor symptoms in Parkinson's disease: a systematic review and meta-analysis.

BACKGROUND: Recent changes to the legal status of cannabis across various countries have renewed interest in exploring its use in Parkinson's disease (PD). The use of cannabinoids for alleviation of motor symptoms has been extensively explored in pre-clinical studies. OBJECTIVE: We aim to systematically review and meta-analyze literature on the use of medical cannabis or its derivatives (MC) in PD patients to determine its effect on motor function and its safety profile. METHODS: We reviewed and analyzed original, full-text randomized controlled trials (RCTs) and observational studies. Primary outcomes were change in motor function and dyskinesia. Secondary outcomes included adverse events and side effects. All studies were analyzed for risk of bias. RESULTS: Fifteen studies, including six RCTs, were analyzed. Of these, 12/15 (80%) mention concomitant treatment with antiparkinsonian medications, most commonly levodopa. Primary outcomes were most often measured using the Unified Parkinson Disease Rating Scale (UPDRS) among RCTs and patient self-report of symptom improvement was widely used among observational studies. Most of the observational data lacking appropriate controls had effect estimates favoring the intervention. However, the controlled studies demonstrated no significant motor symptom improvement overall. The meta-analysis of three RCTs, including a total of 83 patients, did not demonstrate a statistically significant improvement in UPDRS III score variation (MD -0.21, 95% CI -4.15 to 3.72; p = 0.92) with MC use. Only one study reported statistically significant improvement in dyskinesia (p < 0.05). The intervention was generally well tolerated. All RCTs had a high risk of bias. CONCLUSION: Although observational studies establish subjective symptom alleviation and interest in MC among PD patients, there is insufficient evidence to support its integration into clinical practice for motor symptom treatment. This is primarily due to lack of good quality data.

Management of Advanced Chronic Kidney Disease During the COVID-19 Pandemic: Suggestions From the Canadian Society of Nephrology COVID-19 Rapid Response Team.

PURPOSE OF PROGRAM: To provide guidance on the management of patients with advanced chronic kidney disease (CKD) not requiring kidney replacement therapy during the COVID-19 pandemic. SOURCES OF INFORMATION: Program-specific documents, pre-existing, and related to COVID-19; documents from national and international kidney agencies; national and international webinars, including webinars that we hosted for input and feedback; with additional information from formal and informal review of published academic literature. METHODS: Challenges in the care of patients with advanced CKD during the COVID-19 pandemic were highlighted within the Canadian Senior Renal Leaders Forum discussion group. The Canadian Society of Nephrology (CSN) developed the COVID-19 rapid response team (RRT) to address these challenges. They identified a lead with expertise in advanced CKD who identified further nephrologists and administrators to form the workgroup. A nation-wide survey of advanced CKD clinics was conducted. The initial guidance document was drafted and members of the workgroup reviewed and discussed all suggestions in detail via email and a virtual meeting. Disagreements were resolved by consensus. The document was reviewed by the CSN COVID-19 RRT, an ethicist and an infection control expert. The suggestions were presented at a CSN-sponsored interactive webinar, attended by 150 kidney health care professionals, for further peer input. The document was also sent for further feedback to experts who had participated in the initial survey. Final revisions were made based on feedback received until April 28, 2020. Canadian Journal of Kidney Health and Disease (CJKHD) editors reviewed the parallel process peer review and edited the manuscript for clarity. KEY FINDINGS: We identified 11 broad areas of advanced CKD care management that may be affected by the COVID-19 pandemic: (1) clinic visit scheduling, (2) clinic visit type, (3) provision of multidisciplinary care, (4) bloodwork, (5) patient education/support, (6) home-based monitoring essentials, (7) new referrals to multidisciplinary care clinic, (8) kidney replacement therapy, (9) medications, (10) personal protective equipment, and (11) COVID-19 risk in CKD. We make specific suggestions for each of these areas. LIMITATIONS: The suggestions in this paper are expert opinion, and subject to the biases associated with this level of evidence. To expedite the publication of this work, a parallel review process was created that may not be as robust as standard arms' length peer-review processes. IMPLICATIONS: These suggestions are intended to provide guidance for advanced CKD directors, clinicians, and administrators on how to provide the best care possible during a time of altered priorities and reduced resources.

Management of Patients With Glomerulonephritis During the COVID-19 Pandemic: Recommendations From the Canadian Society of Nephrology COVID-19 Rapid Response Team.

PURPOSE OF PROGRAM: This article will provide guidance on how to best manage patients with glomerulonephritis (GN) during the COVID-19 pandemic. SOURCES OF INFORMATION: We reviewed relevant published literature, program-specific documents, and guidance documents from international societies. An informal survey of Canadian nephrologists was conducted to identify practice patterns and expert opinions. We hosted a national webinar with invited input and feedback after webinar. METHODS: The Canadian Society of Nephrology (CSN) Board of Directors invited physicians with expertise in GN to contribute. Specific COVID-19-related themes in GN were identified, and consensus-based recommendations were made by this group of nephrologists. The recommendations received further peer input and review by Canadian nephrologists via a CSN-sponsored webinar. This was attended by 150 kidney health care professionals. The final consensus recommendations also incorporated review by Editors of the Canadian Journal of Kidney Health and Disease. KEY FINDINGS: We identified 9 areas of GN management that may be affected by the COVID-19 pandemic: (1) clinic visit scheduling, (2) clinic visit type, (3) provision of multidisciplinary care, (4) blood and urine testing, (5) home-based monitoring essentials, (6) immunosuppression, (7) other medications, (8) patient education and support, and (9) employment. LIMITATIONS: These recommendations are expert opinion, and are subject to the biases associated with this level of evidence. To expedite the publication of this work, a parallel review process was created that may not be as robust as standard arm's length peer review processes. IMPLICATIONS: These recommendations are intended to provide optimal care during the COVID-19 pandemic. Our recommendations may change based on the evolving evidence.