Availability and prioritisation of COVID-19 vaccines among patients with advanced chronic kidney disease and kidney failure during the height of the pandemic: a global survey by the International Society of Nephrology.

OBJECTIVE: Patients with advanced chronic kidney disease (CKD) or kidney failure receiving replacement therapy (KFRT) are highly vulnerable to COVID-19 infection, morbidity and mortality. Vaccination is effective, but access differs around the world. We aimed to ascertain the availability, readiness and prioritisation of COVID-19 vaccines for this group of patients globally. SETTING AND PARTICIPANTS: Collaborators from the International Society of Nephrology (ISN), Dialysis Outcomes and Practice Patterns Study and ISN-Global Kidney Health Atlas developed an online survey that was administered electronically to key nephrology leaders in 174 countries between 2 July and 4 August 2021. RESULTS: Survey responses were received from 99 of 174 countries from all 10 ISN regions, among which 88/174 (50%) were complete. At least one vaccine was available in 96/99 (97%) countries. In 71% of the countries surveyed, patients on dialysis were prioritised for vaccination, followed by patients living with a kidney transplant (KT) (62%) and stage 4/5 CKD (51%). Healthcare workers were the most common high priority group for vaccination. At least 50% of patients receiving in-centre haemodialysis, peritoneal dialysis or KT were estimated to have completed vaccination at the time of the survey in 55%, 64% and 51% of countries, respectively. At least 50% of patients in all three patient groups had been vaccinated in >70% of high-income countries and in 100% of respondent countries in Western Europe.The most common barriers to vaccination of patients were vaccine hesitancy (74%), vaccine shortages (61%) and mass vaccine distribution challenges (48%). These were reported more in low-income and lower middle-income countries compared with high-income countries. CONCLUSION: Patients with advanced CKD or KFRT were prioritised in COVID-19 vaccination in most countries. Multiple barriers led to substantial variability in the successful achievement of COVID-19 vaccination across the world, with high-income countries achieving the most access and success.

Kidney Pathology Education for Nephrology Fellows: Past, Present, and Future.

Kidney pathology education is a critical component in training of nephrology fellows, as well as for continuing medical education for practicing nephrologists. Kidney pathology images are included on nephrology fellow board exams, and clinicopathologic correlation of kidney biopsy findings is critical in everyday clinical practice. Nephropathology training is a requirement by the American College of Graduate Medical Education within nephrology fellowship curricula. However, greater than one-third of fellowship program directors believe that nephropathology training for their fellows is not sufficient. During the Coronavirus Disease-19 pandemic, the use of digital learning has become commonplace with virtual conferences (local, national, and international) and online meetings becoming the norm for education. Nephrology has become a leader in free open-access online medical education, both prior to and, to even a greater extent, during the pandemic. Here, we review available resources to nephrology fellows and other learners to supplement nephropathology training, which includes medical blogs, journal clubs, interactive quizzes and games, online conferences, podcasts, and mentorship opportunities. These resources are archived and provide durable content to learners of all stages of training, even beyond the pandemic.

Position statement of the Spanish Society of Nephrology on the SARS-CoV-2 vaccines.

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has spread worldwide over the last year causing more than one million deaths. Several treatments have tried to modify the natural history of the coronavirus disease 2019 (COVID-19) but only corticosteroids have demonstrated to be effective in moderate or severe affectation. In that situation, the development of vaccines for preventing the SARS-CoV-2 infection has focused the attention of the scientific community. At present, available messenger RNA-based technology vaccines have received the approval of local and international sanitary authorities. In this position statement, the Spanish Society of Nephrology wants to state that patients with chronic kidney disease and healthcare workers are at high-risk for contagion and complications of COVID-19 so they must have priority in the vaccine administration.

CKD: The burden of disease invisible to research funders.

The uptake of the current concept of chronic kidney disease (CKD) by the public, physicians and health authorities is low. Physicians still mix up CKD with chronic kidney insufficiency or failure. In a recent manuscript, only 23% of participants in a cohort of persons with CKD had been diagnosed by their physicians as having CKD while 29% has a diagnosis of cancer and 82% had a diagnosis of hypertension. For the wider public and health authorities, CKD evokes kidney replacement therapy (KRT). In Spain, the prevalence of KRT is 0.13%. A prevalent view is that for those in whom kidneys fail, the problem is "solved" by dialysis or kidney transplantation. However, the main burden of CKD is accelerated aging and all-cause and cardiovascular premature death. CKD is the most prevalent risk factor for lethal COVID-19 and the factor that most increases the risk of death in COVID-19, after old age. Moreover, men and women undergoing KRT still have an annual mortality which is 10-100-fold higher than similar age peers, and life expectancy is shortened by around 40 years for young persons on dialysis and by 15 years for young persons with a functioning kidney graft. CKD is expected to become the fifth global cause of death by 2040 and the second cause of death in Spain before the end of the century, a time when 1 in 4 Spaniards will have CKD. However, by 2022, CKD will become the only top-15 global predicted cause of death that is not supported by a dedicated well-funded CIBER network research structure in Spain. Leading Spanish kidney researchers grouped in the kidney collaborative research network REDINREN have now applied for the RICORS call of collaborative research in Spain with the support of the Spanish Society of Nephrology, ALCER and ONT: RICORS2040 aims to prevent the dire predictions for the global 2040 burden of CKD from becoming true. However, only the highest level of research funding through the CIBER will allow to adequately address the issue before it is too late.

Evaluating the antibody response to SARS-COV-2 vaccination amongst kidney transplant recipients at a single nephrology centre.

BACKGROUND AND OBJECTIVES: Kidney transplant recipients are highly vulnerable to the serious complications of severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) infections and thus stand to benefit from vaccination. Therefore, it is necessary to establish the effectiveness of available vaccines as this group of patients was not represented in the randomized trials. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: A total of 707 consecutive adult kidney transplant recipients in a single center in the United Kingdom were evaluated. 373 were confirmed to have received two doses of either the BNT162b2 (Pfizer-BioNTech) or AZD1222 (Oxford-AstraZeneca) and subsequently had SARS-COV-2 antibody testing were included in the final analysis. Participants were excluded from the analysis if they had a previous history of SARS-COV-2 infection or were seropositive for SARS-COV-2 antibody pre-vaccination. Multivariate and propensity score analyses were performed to identify the predictors of antibody response to SARS-COV-2 vaccines. The primary outcome was seroconversion rates following two vaccine doses. RESULTS: Antibody responders were 56.8% (212/373) and non-responders 43.2% (161/373). Antibody response was associated with greater estimated glomerular filtration (eGFR) rate [odds ratio (OR), for every 10 ml/min/1.73m2 = 1.40 (1.19-1.66), P<0.001] whereas, non-response was associated with mycophenolic acid immunosuppression [OR, 0.02(0.01-0.11), p<0.001] and increasing age [OR per 10year increase, 0.61(0.48-0.78), p<0.001]. In the propensity-score analysis of four treatment variables (vaccine type, mycophenolic acid, corticosteroid, and triple immunosuppression), only mycophenolic acid was significantly associated with vaccine response [adjusted OR by PSA 0.17 (0.07-0.41): p<0.001]. 22 SARS-COV-2 infections were recorded in our cohort following vaccination. 17(77%) infections, with 3 deaths, occurred in the non-responder group. No death occurred in the responder group. CONCLUSION: Vaccine response in allograft recipients after two doses of SARS-COV-2 vaccine is poor compared to the general population. Maintenance with mycophenolic acid appears to have the strongest negative impact on vaccine response.

Optimising transitions of care for acute kidney injury survivors: protocol for a mixed-methods study of nephrologist and primary care provider recommendations.

INTRODUCTION: Acute kidney injury (AKI) affects nearly 20% of all hospitalised patients and is associated with poor outcomes. Long-term complications can be partially attributed to gaps in kidney-focused care and education during transitions. Building capacity across the healthcare spectrum by engaging a broad network of multidisciplinary providers to facilitate optimal follow-up care represents an important mechanism to address this existing care gap. Key participants include nephrologists and primary care providers and in-depth study of each specialty's approach to post-AKI care is essential to optimise care processes and healthcare delivery for AKI survivors. METHODS AND ANALYSIS: This explanatory sequential mixed-methods study uses survey and interview methodology to assess nephrologist and primary care provider recommendations for post-AKI care, including KAMPS (kidney function assessment, awareness and education, medication review, blood pressure monitoring and sick day education) elements of follow-up, the role of multispecialty collaboration, and views on care process-specific and patient-specific factors influencing healthcare delivery. Nephrologists and primary care providers will be surveyed to assess recommendations and clinical decision-making in the context of post-AKI care. Descriptive statistics and the Pearson's χ2 or Fisher's exact test will be used to compare results between groups. This will be followed by semistructured interviews to gather rich, qualitative data that explains and/or connects results from the quantitative survey. Both deductive analysis and inductive analysis will occur to identify and compare themes. ETHICS AND DISSEMINATION: This study has been reviewed and deemed exempt by the Institutional Review Board at Mayo Clinic (IRB 20-0 08 793). The study was deemed exempt due to the sole use of survey and interview methodology. Results will be disseminated in presentations and manuscript form through peer-reviewed publication.

No additional benefit of prescribing a very low-protein diet in patients with advanced chronic kidney disease under regular nephrology care: a pragmatic, randomized, controlled trial.

BACKGROUND: Whether a very low-protein diet supplemented with ketoanalogues (sVLPD), compared with a standard low-protein diet (LPD), improves outcomes in patients with chronic kidney disease (CKD) under stable nephrology care is undefined. OBJECTIVES: To compare the effectiveness of sVLPD compared with LPD in patients regularly seen in tertiary nephrology care. METHODS: Participants were patients with CKD stages 4-5, followed for at least 6 mo, randomly allocated to receive sVLPD or LPD [0.35 or 0.60 g/kg ideal body weight (IBW)/d, respectively], stratified by center and CKD stage. The primary outcome was time to renal death, defined as the first event between end-stage renal disease (ESRD) and all-cause mortality; secondary outcomes were the single components of the primary outcome, cardiovascular outcome, and nutritional status. RESULTS: We analyzed 223 patients (sVLPD, n = 107; LPD, n = 116). Mean age was 64 y, 61% were male, and 35% had diabetes. Median protein intake (PI), which was 0.8 g/kg IBW/d at baseline in both groups, was 0.83 and 0.60 g/kg IBW/d in LPD and sVLPD, respectively, during the trial with a large decrease only in sVLPD (P = 0.011). During a median of 74.2 mo, we recorded 180 renal deaths (141 dialysis and 39 deaths before dialysis). Risk of renal death did not differ in sVLPD compared with LPD (HR: 1.17; 95% CI: 0.88, 1.57; P = 0.28). No difference was observed for ESRD (HR: 1.12; 95% CI: 0.81, 1.56; P = 0.51), mortality (HR: 0.95; 95% CI: 0.62, 1.45; P = 0.82), or time to fatal/nonfatal cardiovascular events (P = 0.2, log-rank test). After 36 mo, still active patients were 45 in sVLPD and 56 in LPD. No change of nutritional status emerged during the study in any arm. CONCLUSIONS: This long-term pragmatic trial found that in patients with CKD under stable nephrology care, adherence to protein restriction is low. Prescribing sVLPD compared with standard LPD is safe but does not provide additional advantage to the kidney or patient survival.

Management of Hemodialysis Patients with Suspected or Confirmed COVID-19 Infection: Perspective from the Spanish Nephrology.

Background: The recent SARS-CoV-2 coronavirus pandemic has signified a significant effect on the health of the population worldwide. Patients on chronic RRT have been affected by the virus, and they are at higher risk due to the frequent comorbid conditions. Here, we show the results of the COVID-19 Registry of the Spanish Society of Nephrology during the first 6 weeks of the outbreak. Methods: This study is an analysis of the data recorded on a registry of patients with ESKD on RRT who tested positive for COVID-19. The aim was to evaluate clinical conditions, therapeutic management, and consequences, including outcome. The registry began on March 18th, 2020. It includes epidemiologic data, cause of CKD, signs and symptoms of the infection, treatments, and outcomes. Patients were diagnosed with SARS-CoV-2 infection on the basis of the results of PCR of the virus obtained from nasopharyngeal/oropharyngeal swabs. The tests were performed on symptomatic patients and on those who mentioned contact with infected patients. Results: As of May 2, the registry included data on 1397 patients (in-center hemodialysis [IC-HD], 63%; kidney transplant [Tx], 34%; peritoneal dialysis [PD], 3%; and home hemodialysis, 0.3%). The mean age was 67±15 years, and two-thirds were men. Dialysis vintage was 46±41 months, and the time after transplantation was 59±54 months. Eighty-five percent of the patients required hospital admission, and 8% had to be transferred to intensive care units. Overall mortality was 25% (IC-HD, 27%; Tx, 23%; and PD, 15%), and significant proportions of deceased patients have advanced age, are on IC-HD, and presented pneumonia. Age and pneumonia were independently associated with the risk of death. Conclusions: SARS-CoV-2 infection affected a significant number of Spanish patients on RRT, mainly those on IC-HD. Hospitalization rates and mortality were high. The factors more closely related to mortality were age and pneumonia.

[Nephrology: what's new in 2021?] / Néphrologie.

Major advances in the treatment of nondiabetic chronic nephropathy and ANCA associated-renal vasculitis were published within the past two years. A new formula for assessing GFR was developed that does not take ethnicity into account. For hemodialysis patients, hemodiafiltration does not diminish uremic neuropathy. In hemodialysis patients, DOACs induce less bleeding than K vitamin antagonists. Weaning of steroids should be more rapid in some transplant patients. COVID-19 vaccination is less effective in dialysis and transplant patients and will necessitate a third dose.

De grandes avancées thérapeutiques ont été publiées récemment dans le chapitre de la néphropathie chronique non diabétique et des vascularites rénales. Une nouvelle formule d'estimation du débit de filtration glomérulaire estimé a été développée sans facteur de correction ethnique. En hémodialyse, l'hémodiafiltration ne diminue pas la neuropathie urémique et les anticoagulants oraux directs occasionnent moins de complications hémorragiques que les antivitamines K. Un sevrage plus rapide des corticostéroïdes chez certains greffés rénaux est possible. La vaccination contre le Covid a une efficacité moindre chez les dialysés et les transplantés rénaux, et nécessite une troisième dose.

Pneumonia in Patients with Chronic Kidney Disease Admitted to Nephrology Department of a Tertiary Care Center: A Descriptive Cross-sectional Study.

INTRODUCTION: Chronic Kidney Disease is an independent risk factor for pneumonia. The risk of hospitalization, Intensive Care Unit and ventilator requirement, in-hospital death is high in pneumonia patients with chronic kidney disease. This study aims to find the prevalence of pneumonia in patients with chronic kidney disease admitted to nephrology department of a tertiary care center. METHODS: A descriptive cross-sectional study was conducted among all the hospital records of pneumonia patients with Chronic Kidney Disease admitted to the Nephrology department between April 2019 and April 2021. Ethical clearance was obtained from the Institutional Review Committee of same institute (Reference number: 0505202106). Statistical Package for the Social Sciences version 20 was used for analysis. Point estimate at 95% Confidence Interval was calculated along with frequency and proportion for binary data. RESULTS: Of the total 407 patients with Chronic Kidney Disease, 78 (19.1%) (95% Confidence Interval= 15.28-22.92) had pneumonia. Among the 78 pneumonia patients, 17 (21.8%) were Stage 3, 13 (16.7%) Stage 4 and 48 (61.5%) Stage 5 of chronic kidney disease. Forty Seven (60.3%) required Intensive Care Unit (ICU), 19 (24.4%) required ventilator and 22 (28.2%) of the patient expired in hospital. The most commonly isolated organisms were Severe Acute Respiratory Syndrome Coronavirus 2 which was 13 (16.6%) followed by Strepotococcus pneumoniae which was 8 (10.2%). CONCLUSIONS: The prevalence of pneumonia in Chronic Kidney Disease was observed higher in our study compared to other studies.

Impact of coronavirus disease-2019 on pediatric nephrology practice and education: an ESPN survey.

BACKGROUND: Coronavirus disease-2019 (COVID-19) has been challenging for patients and medical staff. Radical changes have been needed to prevent disruptions in patient care and medical education. METHODS: A web-based survey was sent to European Society for Pediatric Nephrology (ESPN) members via the ESPN mailing list to evaluate the effects of the COVID-19 pandemic on delivery of pediatric nephrology (PN) care and educational activities. There were ten questions with subheadings. RESULTS: Seventy-six centers from 24 countries completed the survey. The time period was between the beginning of the pandemic and May 30, 2020. The number of patients admitted in PN wards and outpatient clinics were significantly decreased (2.2 and 4.5 times, respectively). Telemedicine tools, electronic prescriptions, online applications for off-label drugs, and remote access to laboratory/imaging results were used in almost half of the centers. Despite staff training and protective measures, 33% of centers reported COVID-19 infected staff, and 29% infected patients. Difficulties in receiving pharmaceuticals were reported in 25% of centers. Sixty percent of centers suspended living-related kidney transplantation, and one-third deceased-donor kidney transplantation. Hands-on education was suspended in 91% of medical schools, and face-to-face teaching was replaced by online systems in 85%. Multidisciplinary training in PN was affected in 54% of the centers. CONCLUSIONS: This survey showed a sharp decline in patient admissions and a significant decrease in kidney transplantation. Telemedicine and online teaching became essential tools, requiring integration into the current system. The prolonged and fluctuating course of the pandemic may pose additional challenges necessitating urgent and rational solutions.

Effect of Coronavirus Disease 2019 on Transplantation and Nephrology in India: A Nationwide Report From India.

BACKGROUND: The effect of coronavirus disease 2019 (COVID-19) on a developing nation is sparsely reported and, more importantly, the discrepancies in public and private sectors are underexplored. METHODS: We retrospectively investigated the data on the effect of COVID-19 on renal transplantation between 2019 and 2020 in a nationwide analysis from 8 public and 10 private sector hospitals of India. RESULTS: On comparing the yearly data, the number of living-related transplants and deceased donor transplants declined by 48% (2610 vs 1370) and 49% (194 vs 99), respectively. The outpatient numbers and in-center admissions decreased by 40.4% (616,741 vs 367,962) and 30.8 % (73,190 vs 49,918). respectively. There was no increase in the number of renal or graft biopsies in the COVID-19 era. The number of waitlisted patients on hemodialysis was higher in public (304,898 vs 338,343) when compared with private (163,096 vs 150,292) in the last 2 years. Similarly, the number of waitlisted patients on peritoneal dialysis (4655 vs 3526) was higher in the public sector compared with private sector (932 vs 745). The decline in living transplants during the pandemic was higher in public sectors (58%) compared with the private (49%). However, the decline in deceased donation was higher in private (57.9%) relative to public (50.6%). CONCLUSIONS: COVID-19 has adversely affected the transplantation activities across the Indian transplantation centers, with a disproportionately higher impact on waitlisted patients in public sector programs. A sound prioritization of health care resources is mandated to safeguard the most deprived and high-risk waitlisted patients during the pandemic.