In-center Hemodialysis Research Articles

Patient Perspectives on Using Telemedicine During In-Center Hemodialysis: A Qualitative Study

Patient Perspectives on Using Telemedicine During In-Center Hemodialysis: A Qualitative Study

Reach, Acceptability, and Patient Preferences of a Mobile Health-Based Survey to Assess COVID-19 Vaccine Hesitancy Among Patients Receiving Dialysis

Rationale & ObjectiveThe majority of patients with kidney failure receiving dialysis own mobile devices, but the use of mobile health (mHealth) technologies to conduct surveys in this population is limited. We assessed the reach and acceptability of a short message service (SMS) text message-based survey that assessed COVID-19 vaccine hesitancy among patients receiving dialysis. Study DesignCross-sectional SMS-based survey in January 2021. Setting& Participants: Patients receiving in-center hemodialysis, peritoneal dialysis, or home hemodialysis in a non-profit dialysis organization in New York City. Outcomes1) Reach of the SMS survey, 2) Acceptability using the 4-item Acceptability of Intervention Measure (AIM), and 3) Patient preferences for modes of survey administration. Analytical ApproachWe used Fisher’s exact tests and multivariable logistic regression to assess sociodemographic and clinical predictors of SMS survey response. Qualitative methods were used to analyze open-ended responses capturing patient preferences. ResultsAmong 1008 patients, 310 responded to the SMS survey (response rate 31%). In multivariable adjusted analyses, participants who were age 80 and above (aOR 0.49, 95% CI 0.25 – 0.96) were less likely to respond to the SMS survey compared with those aged 18 to 44. Non-Hispanic Black (aOR 0.58, 95% CI 0.39 – 0.86), Hispanic (aOR 0.31, 95% CI 0.19 – 0.51), and Asian or Pacific Islander (aOR 0.46, 95% CI 0.28 – 0.74) individuals were less likely to respond compared with non-Hispanic White participants. Participants residing in census tracts with higher Social Vulnerability Index (SVI), indicating greater neighborhood-level social vulnerability, were less likely to respond to the SMS survey (5th vs. 1st quintile aOR 0.61, 95% CI 0.37 – 0.99). Over 80% of a sample of survey respondents and non-respondents completely agreed or agreed with the Acceptability of Intervention Measure. Qualitative analysis revealed 4 drivers of patient preferences for survey administration: 1) convenience (subtopics: efficiency, multi-tasking, comfort, synchronicity); 2) privacy; 3) interpersonal interaction; and 4) accessibility (subtopics: vision, language, fatigue). LimitationsGeneralizability, length of survey. ConclusionsAn SMS text message-based survey had moderate reach among patients on dialysis and was highly acceptable, but response rates were lower in older (age ≥ 80), non-White individuals, and those with greater neighborhood-level social vulnerability. Future research should examine barriers and facilitators to mHealth among patients on dialysis to ensure equitable implementation of mHealth-based technologies.

The experiences of people starting haemodialysis: A qualitative study.

Starting dialysis is a life-changing transition for people living with kidney disease. People feel overwhelmed with diet changes, medications and surgical interventions, and often experience high levels of anxiety, depression and hospital admissions. The objective of this study was to explore and describe the experiences and perspectives of people starting dialysis. Observational qualitative study using audio-recorded, individual, semi-structured interviews. We conducted 20 semi-structured interviews with English-speaking adults who were within 90 days of starting in-centre haemodialysis at centres of a nonprofit dialysis provider in Northern California. Trained qualitative researchers conducted interviews that were deidentified and transcribed verbatim before being inductively coded into codes, categories, and themes. Three overarching themes emerged from the interviews. Being overwhelmed when starting dialysis, realises the emotional unpreparedness of patients starting dialysis and how the centre's environment (waiting and treatment areas) and staff behaviour impact the dialysis start experience. Making sense of it all, covers how the patient's symptoms, behaviour, and dialysis-related experiences impact the dialysis start. Moving forward, describes how education informed optimal decision-making, and can provide hope for a longer and better life. Predominantly college-educated participants were recruited from a single dialysis organisation which may limit the transferability of results. Understanding the life-changing experiences that patients encounter when starting dialysis assist dialysis clinicians to help patients adjust and develop long-term coping strategies.

Association of calciprotein particles with serum phosphorus among patients undergoing conventional and extended-hours haemodialysis.

Extended-hours haemodialysis (HD) is associated with better clinical outcomes than conventional HD. We investigated whether extended-hours HD and conventional HD have varying effects on blood levels of calciprotein particles (CPPs) and phosphorus, which have been identified as major pathogenic molecules for vascular calcification. Patients who underwent conventional or extended in-centre daytime HD between January and March 2020 were included. Plasma CPP levels, representing only secondary CPPs (CPP-II), were measured in pre-dialysis samples. Linear and non-linear associations between CPPs and serum phosphorus levels were examined across dialysis modalities. A total of 382 participants (185 undergoing extended-hours HD and 197 undergoing conventional HD) were included in the analysis. The median age of participants was 71years, 65% of the patients were men and the mean phosphorus level was 5.4mg/dl. Plasma CPP (CPP-II) levels were lower in the extended-hours HD group than in the conventional HD group [40018(arbitrary units) AU versus 75728AU; P<.01]. Multivariable linear regression analysis showed that extended-hours HD was associated with lower natural logarithmic plasma CPP (CPP-II) levels: -0.64 (95% confidence interval -0.74 to -0.55). A restricted cubic spline function indicated that extended-hours HD was associated with lower plasma CPP (CPP-II) levels across levels of serum phosphorus, with significant differences observed between groups, especially in hyperphosphataemic conditions (P for interaction <.01). The extended-hours HD group had lower CPP levels than the conventional HD group despite no significant differences in serum phosphorus levels, which may contribute to better clinical outcomes in patients on extended-hours HD.

Prescription and Dispensation of QT-Prolonging Medications in Individuals Receiving Hemodialysis

Individuals with dialysis-dependent kidney failure have numerous risk factors for medication-related adverse events, including receipt of care by multiple clinicians and initiation of some QT-prolonging medications with known risk of torsades de pointes (TdP), which is associated with higher risk of sudden cardiac death. Little is known about the prescription and dispensation patterns of QT-prolonging medications among people receiving dialysis, hindering efforts to reduce drug-related harm from these and other medications in this high-risk population. To examine prescription and dispensation patterns of QT-prolonging medications with known TdP risk and selected interacting medications prescribed to individuals receiving hemodialysis. This cross-sectional study included patients 60 years or older who were enrolled in Medicare Parts A, B, and D receiving in-center hemodialysis from January 1 to December 31, 2019. Analyses were conducted from October 20, 2022, to June 16, 2023. New-user prescriptions for the 7 most frequently filled QT-prolonging medications characterized by the timing of the new prescription relative to acute care encounters, the type of prescribing clinician and pharmacy that dispensed the medication, and concomitant use of selected medications known to interact with the 7 most frequently filled QT-prolonging medications with known TdP risk. The main outcomes were the frequencies of the most commonly filled and new-use episodes of QT-prolonging medications; the timing of medication fills relative to acute care events; prescribers and dispensing pharmacy characteristics for new use of medications; and the frequency and types of new-use episodes with concurrent use of potentially interacting medications. Of 20 761 individuals receiving hemodialysis in 2019 (mean [SD] age, 74 [7] years; 51.1% male), 10 992 (52.9%) filled a study drug prescription. Approximately 80% (from 78.6% for odansetron to 93.9% for escitalopram) of study drug new-use prescriptions occurred outside of an acute care event. Between 36.8% and 61.0% of individual prescriptions originated from general medicine clinicians. Between 16.4% and 26.2% of these prescriptions occurred with the use of another QT-prolonging medication. Most potentially interacting drugs were prescribed by different clinicians (46.3%-65.5%). In this cross-sectional study, QT-prolonging medications for individuals with dialysis-dependent kidney failure were commonly prescribed by nonnephrology clinicians and from nonacute settings. Prescriptions for potentially interacting medications often originated from different prescribers. Strategies aimed at minimizing high-risk medication-prescribing practices in the population undergoing dialysis are needed.

The Ottawa Statement implementation guidance document for cluster randomized trials in the hemodialysis setting

Research teams are increasingly interested in using cluster randomized trial (CRT) designs to generate practice-guiding evidence for in-center maintenance hemodialysis. However, CRTs raise complex ethical issues. The Ottawa Statement on the Ethical Design and Conduct of Cluster Randomized Trials, published in 2012, provides 15 recommendations to address ethical issues arising within 7 domains: justifying the CRT design, research ethics committee review, identifying research participants, obtaining informed consent, gatekeepers, assessing benefits and harms, and protecting vulnerable participants. But applying the Ottawa Statement recommendations to CRTs in the hemodialysis setting is complicated by the unique features of the setting and population. Here, with the help of content experts and patient partners, we co-developed this implementation guidance document to provide research teams, research ethics committees, and other stakeholders with detailed guidance on how to apply the Ottawa Statement recommendations to CRTs in the hemodialysis setting, the result of a 4-year research project. Thus, our work demonstrates how the voices of patients, caregivers, and all stakeholders may be included in the development of research ethics guidance.

Home versus in-centre haemodialysis for people with kidney failure.

Home versus in-centre haemodialysis for people with kidney failure.

414 Transition of a patient with low literacy skills from In-center Hemodialysis (ICHD) to Home Hemodialysis (HHD): Role of Adaptive training to overcome learning barriers

414 Transition of a patient with low literacy skills from In-center Hemodialysis (ICHD) to Home Hemodialysis (HHD): Role of Adaptive training to overcome learning barriers

The impact of foot reflexology on fatigue and sleep quality in school-aged children undergoing hemodialysis

ABSTRACT Objective: This study aimed to evaluate the effects of foot reflexology on fatigue and sleep quality in school-aged children receiving hemodialysis. Methods: A quasi-experimental pretest–posttest design was utilized. Thirty children of ages 6–12 undergoing in-center hemodialysis were recruited. The Pittsburgh Sleep Quality Index (PSQI) and Inventory of Fatigue Symptom (IFS) scales were administered at baseline. Participants then received 30 min of foot reflexology massage before hemodialysis sessions 3 days per week for 12 weeks. Posttest administration of the sleep and fatigue scales occurred after the intervention period. Results: Reflexology massage led to significant improvements in sleep quality components, including duration (0%–30% normal sleepers), efficiency (0%–50% &gt;85%), latency (50%–0% &gt;60 min), disturbances, and daytime dysfunction. The mean PSQI score decreased from 18.2 to 9.7 (P &lt; 0.05). Fatigue severity substantially decreased, with the mean IFS score improving from 105.7 to 64.1 (P &lt; 0.05). Conclusion: Foot reflexology is an effective nursing intervention for reducing fatigue and improving sleep quality in children on hemodialysis, warranting integration into routine care.

Is the cost of the new home dialysis techniques still advantageous compared to in-center hemodialysis? An Italian single center analysis and comparison with experiences from western countries.

Potential advantages of home dialysis remained a questionable issue. Three main factors have to be considered: the progressive reduction in the cost of consumables for in-Center hemodialysis (IC-HD), the widespread use of incremental Peritoneal Dialysis (PD), and the renewed interest in home hemodialysis (H-HD) in the pandemic era. Registries data on prevalence of dialysis modalities generally report widespread underemployment of home dialysis despite PD and H-HD could potentially provide clinical benefits, improve quality of life, and contrast the diffusion of new infection among immunocompromised patients. We examined the economic impact of home dialysis by comparing the direct and indirect costs of PD (53 patients), H-HD (21 patients) and IC-HD (180 patients) in a single hospital of North-west Italy. In order to achieve comparable weekly costs, the average weekly frequency of dialysis sessions based on the dialysis modality was calculated, the cost of individual sessions per patient per week normalized, and the monthly and yearly costs were derived. As expected, PD resulted the least expensive procedure (€ 23,314.79 per patient per year), but, notably, H-HD has a lower average cost than IC-HD (€ 35,535.00 vs. € 40,798.98). A cost analysis of the different dialysis procedures confirms the lower cost of PD, especially continuous ambulatory PD, compared to any extracorporeal technique. Among the hemodialysis techniques, home bicarbonate HD showed the lowest costs, while the weekly cost of Frequent Home Hemodialysis was found to be comparable to In-Center Bicarbonate Hemodialysis.

Patient Care Technician Staffing and Outcomes Among US Patients Receiving In-Center Hemodialysis

Dialysis patient care technicians (PCTs) play a critical role in US in-center hemodialysis (HD) care, but little is known about the association of PCT staffing with patient outcomes at US HD facilities. To estimate the associations of in-center HD patient outcomes with facility-level PCT staffing. This was a retrospective cohort study, with data analysis performed from March 2023 to January 2024. Data on US patients with end-stage kidney disease and their treatment facilities were obtained from the US Renal Data System. Participants included patients (aged 18-100 years) initiating in-center HD between January 1, 2016, and December 31, 2018, who continued receiving in-center HD for 90 days or more and had data on PCT staffing at their initial treating HD facility. Facility-level patient-to-PCT ratios (number of HD patients divided by the number of PCTs reported by the treating facility in the prior year), categorized into quartiles (highest quartile denotes the highest PCT burden). Patient-level outcomes included 1-year patient mortality, hospitalization, and transplantation. Associations of outcomes with quartile of patient-to-PCT ratio were estimated using incidence rate ratios (IRRs) from mixed-effects Poisson regression, with adjustment for patient demographics and clinical and facility factors. A total of 236 126 patients (mean [SD] age, 63.1 [14.4] years; 135 952 [57.6%] male; 65 945 [27.9%] Black; 37 777 [16.0%] Hispanic; 153 637 [65.1%] White; 16 544 [7.0%] other race; 146 107 [61.9%] with diabetes) were included. After full adjustment, the highest vs lowest quartile of facility-level patient-to-PCT ratio was associated with a 7% higher rate of patient mortality (IRR, 1.07; 95% CI, 1.02-1.12), a 5% higher rate of hospitalization (IRR, 1.05; 95% CI, 1.02-1.08), an 8% lower rate of waitlisting (IRR, 0.92; 95% CI, 0.85-0.98), and a 20% lower rate of transplant (IRR, 0.80; 95% CI, 0.71-0.91). The highest vs lowest quartile of patient-to-PCT ratio was also associated with an 8% higher rate of sepsis-related hospitalization (IRR, 1.08; 95% CI, 1.03-1.14) and a 15% higher rate of vascular access-related hospitalization (IRR, 1.15; 95% CI, 1.03-1.28). These findings suggest that initiation of treatment in facilities with the highest patient-to-PCT ratios may be associated with worse early mortality, hospitalization, and transplantation outcomes. These results support further investigation of the impact of US PCT staffing on patient safety and quality of US in-center HD care.

The Use of Telemedicine by US Nephrologists for In-Center Hemodialysis Care During the Pandemic: An Analysis of National Medicare Claims

Because of coronavirus disease 2019 (COVID-19), the US government issued emergency waivers in March 2020 that removed regulatory barriers around the use of telemedicine. For the first time, nephrologists were reimbursed for telemedicine care delivered during in-center hemodialysis. We examined the use of telemedicine for in-center hemodialysis during the first 16 months of the pandemic. We ascertained telemedicine modifiers on nephrologist claims. We used multivariable regression to examine time trends and patient, dialysis facility, and geographic correlates of telemedicine use. We also examined whether the estimated effects of predictors of telemedicine use changed over time. US Medicare beneficiaries receiving in-center hemodialysis between March 1, 2020, and June 30, 2021. Patient, geographic, and dialysis facility characteristics. The use of telehealth for in-center hemodialysis care. Retrospective cohort analysis. Among 267,434 Medicare beneficiaries identified, the reported use of telemedicine peaked at 9% of patient-months in April 2020 and declined to 2% of patient-months by June 2021. Telemedicine use varied geographically and was more common in areas that were remote and socioeconomically disadvantaged. Patients were more likely to receive care by telemedicine in areas with higher incidence of COVID-19, although the predictive value of COVID-19 diminished later in the pandemic. Patients were more likely to receive care using telemedicine if they were at facilities with more staff, and the use of telemedicine varied by facility ownership type. Limited reporting of telemedicine on claims could lead to underestimation of its use. Reported telemedicine use was higher in an analysis designed to address this limitation by focusing on patients whose physicians used telemedicine at least once during the pandemic. Some US nephrologists continued to use telemedicine for in-center hemodialysis throughout the pandemic, even as the association between COVID-19 incidence and telemedicine use diminished over time. These findings highlight unique challenges and opportunities to the future use of telemedicine in dialysis care.

The Connected We St@nd programme: A feasibility pilot study of an online self-management intervention for adults on in-centre haemodialysis and family caregivers.

The 'Connected We St@nd' is an online self-management intervention programme for people receiving in-centre haemodialysis and family caregivers that combines an educational and psychosocial support component. This study aimed to evaluate its feasibility and acceptability before proceeding to a large-scale trial. This was a pre-post single-arm feasibility pilot study conducted with adults undergoing in-centre haemodialysis and family caregivers. Feasibility was based on eligibility, consent, retention, completion and intervention adherence rates, while acceptability was assessed in post-intervention focus group interviews. Twenty-six people (16 adults on haemodialysis and 10 family caregivers) recruited through social networks completed the intervention. Consent, retention and completion rates were excellent (>90%) and eligibility (77.5%) and intervention adherence were satisfactory (69% for the psychosocial support sessions). Qualitative findings revealed that participants shared positive feelings regarding their participation in the programme. The valuable interactions with group peers and health psychologists during the support sessions, the perception of the adequacy and coherence of the programme's contents and materials and the participants' confidence in using the platform developed to deliver the intervention were some of the aspects highlighted as facilitators of intervention acceptability. Additionally, people on haemodialysis and caregivers reported that participation in the programme brought several educational and emotional benefits (e.g., additional disease-related knowledge, improved communication and coping skills, greater confidence in managing dialysis complications or caregiving demands) that helped increase their self-management skills and psychosocial adjustment to the demands of kidney failure and renal therapies. The results suggested that the 'Connected We St@nd' programme is likely to be feasible and acceptable for adults on haemodialysis and family caregivers, thus representing a promising resource for the future of interdisciplinary renal rehabilitation. Suggestions were made to fine-tune the intervention design to proceed with a large-scale trial.

Longitudinal changes in diffusion tensor imaging in hemodialysis patients.

Hemodialysis patients have increased white matter and gray matter pathology in the brain relative to controls based on MRI. Diffusion tensor imaging is useful in detecting differences between hemodialysis and controls but has not identified the expected longitudinal decline in hemodialysis patients. In this study we implemented specialized post-processing techniques to reduce noise to detect longitudinal changes in diffusion tensor imaging parameters and evaluated for any association with changes in cognition. We collected anatomical and diffusion MRIs as well as cognitive testing from in-center hemodialysis patients at baseline and 1 year later. Gray matter thickness, white matter volume, and white matter diffusion tensor imaging parameters were measured to identify longitudinal changes. We analyzed the diffusion tensor imaging parameters by averaging the whole white matter and using a pothole analysis. Eighteen hemodialysis patients were included in the longitudinal analysis and 15 controls were used for the pothole analysis. We used the NIH Toolbox Cognition Battery to assess cognitive performance over the same time frame. Over the course of a year on hemodialysis, we found a decrease in white matter fractional anisotropy across the entire white matter (p < 0.01), and an increase in the number of white matter fractional anisotropy voxels below pothole threshold (p = 0.03). We did not find any relationship between changes in whole brain structural parameters and cognitive performance. By employing noise reducing techniques, we were able to detect longitudinal changes in diffusion tensor imaging parameters in hemodialysis patients. The fractional anisotropy declines over the year indicate significant decreases in white matter health. However, we did not find that declines in fractional anisotropy was associated with declines in cognitive performance.

Patient Training and Patient Safety in Home Hemodialysis.

The success of a home hemodialysis program depends largely on a patient safety framework and the risk tolerance of a home dialysis program. Dialysis treatments require operators to perform dozens of steps repeatedly and reliably in a complex procedure. For home hemodialysis, those operators are patients themselves or their care partners, so attention to safety and risk mitigation is front of mind. While newer, smaller, and more user-friendly dialysis machines designed explicitly for home use are slowly entering the marketplace, teaching patients to perform their own treatments in an unsupervised setting hundreds of times remains a foundational programmatic obligation regardless of machine. Just how safe is home hemodialysis? How does patient training affect this safety? There is a surprising lack of literature surrounding these questions. No consensus exists among home hemodialysis programs regarding optimized training schedules or methods, with each program adopting its own approach on the basis of local experience. Furthermore, there are little available data on the safety of home hemodialysis as compared with conventional in-center hemodialysis. This review will outline considerations for training patients on home hemodialysis, discuss the safety of home hemodialysis with an emphasis on the risk of serious and life-threatening adverse effects, and address the methods by which adverse events are monitored and prevented.

Self-reported MeasUrement of Physical and PsychosOcial Symptoms Response Tool (SUPPORT-dialysis): systematic symptom assessment and management in patients on in-centre haemodialysis – a parallel arm, non-randomised feasibility pilot study protocol

IntroductionPatients with kidney failure experience symptoms that are often under-recognised and undermanaged. These symptoms negatively impact health-related quality of life and are associated with adverse clinical outcomes. Regular symptom assessment,...

Comparison of Acute Health Care Utilization Between Patients Receiving In-Center Hemodialysis and the General Population: A Population-Based Matched Cohort Study From Ontario, Canada.

Patients receiving maintenance hemodialysis have multiple comorbidities and are at high risk of presenting to the hospital. However, the incidence and cost of acute health care utilization in the in-center hemodialysis population and how this compares with other populations is poorly understood. To determine the rate, pattern, and cost of emergency department visits and hospitalizations in patients receiving in-center hemodialysis compared with a matched general population. Population-based matched cohort study. We used linked administrative health care databases from Ontario, Canada. We included 25 379 patients (incident and prevalent) receiving in-center hemodialysis between January 1, 2010, and December 31, 2018. Patients were matched on birth date (±2 years), sex, and cohort entry date using a 1:4 ratio to 101 516 individuals from the general population. Our primary outcomes were emergency department visits (allowing for multiple visits per individual) and hospital admissions from the emergency department. We also assessed all-cause hospitalizations, all-cause readmissions within 30 days of discharge from the original hospitalization, length of stay for hospital admissions (including multiple visits per individual), and the financial cost of these admissions. We presented the rate, percentage, median (25th, 75th percentiles), and incidence rate per 1000 person-years for emergency department visits and hospitalizations. Individual-level health care costs for emergency department visits and all-cause hospitalization were estimated using resource intensity weights multiplied by the cost per weighted case. Patients receiving in-center hemodialysis had substantially more comorbidities (eg, diabetes) than the matched general population. Eighty percent (n = 20 309) of patients receiving in-center hemodialysis had at least 1 emergency department visit compared with 56% (n = 56 452) of individuals in the matched general population, over a median follow-up of 1.8 years (25th, 75th percentiles: 0.7, 3.6) and 5.2 (2.5, 8.4) years, respectively. The incidence rate of emergency department visits, allowing for multiple visits per individual, was 2274 per 1000 person-years (95% confidence interval [CI]: 2263, 2286) for patients receiving in-center hemodialysis, which was almost 5 times as high as the matched general population (471 per 1000 person-years; 95% CI: 469, 473). The rate of hospital admissions from the emergency department and the rate of all-cause hospital admissions in the in-center hemodialysis population was more than 7 times as high as the matched general population (hospital admissions from the emergency department: 786 vs 101 per 1000 person-years; all-cause hospital admissions: 1056 vs 139 per 1000 person-years). The median number of all-cause hospitalization days per patient year was 4.0 (0, 16.5) in the in-center hemodialysis population compared with 0 (0, 0.5) in the matched general population. The cost per patient-year for emergency department visits in the in-center hemodialysis population was approximately 5.5 times as high as the matched general population while the cost of hospitalizations in the in-center hemodialysis population was approximately 11 times as high as the matched general population (emergency department visits: CAN$ 1153 vs CAN$ 209; hospitalizations: CAN$ 21 151 vs CAN$ 1873 [all costs in 2023 CAN$]). External generalizability and we could not determine whether emergency department visits and hospitalizations were preventable. Patients receiving in-center hemodialysis have high acute health care utilization. These results improve our understanding of the burden of disease and the associated costs in the in-center hemodialysis population, highlight the need to improve acute outcomes, and can aid health care capacity planning. Additional research is needed to address the risk of hospitalization after controlling for patient comorbidities. This is not applicable as this is a population-based matched cohort study and not a clinical trial.

Reducing the Frequency of Surveillance Blood Work in Patients Treated With Maintenance Hemodialysis: A Local Quality Improvement Initiative.

There is little evidence on the ideal frequency of routine blood work in maintenance dialysis patients to manage complications, including anemia, mineral bone disease (MBD), and hyperkalemia. Recent quality improvement studies from Ontario showed no negative impacts when decreasing the frequency from monthly to every 6 weeks in conventional in-center hemodialysis (ICHD) patients. In December 2020, Alberta Kidney Care-South (AKC-S) reduced the frequency of routine blood work from every 6 weeks to every 8 weeks for ICHD patients. We aimed to assess the impact of reducing blood work frequency on patient outcomes. We compared prevalent AKC-S ICHD patients in 2 cohorts: (1) retrospective control (October 31, 2019-October 31, 2020) and (2) prospective intervention (December 1, 2020-December 1, 2021). Primary outcomes were true frequency of routine blood work, odds of patients being within target for anemia and MBD, and proportion of lab values of hyperkalemia. Furthermore, we compared hospitalizations and mortality. A total of 972 patients in Calgary's ICHD program were included, 787 in each period (with 602 patients overlapping both cohorts). The frequency of routine blood work decreased from every 39.5 days in the control period to every 54.2 days in the intervention period (P < .01). There was a reduction in the odds of phosphate values in targets (P = .02), and an increase in the odds of labs with hyperkalemia (>6.0 mmol/L) during the intervention period (P = .01). There was no significant change in the odds of being within the accepted targets during the intervention period compared with the control period for hemoglobin, Tsat, calcium, or parathyroid hormone (PTH). Fewer patients were hospitalized during the intervention period and the risk of death decreased as well, although additional factors such as the COVID-19 pandemic may have affected this. A cost-savings of $32 962 occurred from the reduced anemia and MBD blood work during the intervention period. When ICHD units in Calgary reduced routine blood work frequency from every 6 weeks to 8 weeks, there were no negative impacts on hospitalizations or deaths. A slightly lower proportion of phosphate values were within target, and a 0.7% increase in potassium values greater than 6 mmol/L was demonstrated. Our study suggests that blood work frequency in ICHD dialysis patients may be further reduced to every 8 weeks safely. Ultimately, additional pragmatic trials are needed to identify the optimal frequency of routine blood work.

Safeguarding Patients with End-Stage Kidney Disease From Climate-driven Extreme Heat and Hurricanes.

5wPatients with end stage kidney disease (ESKD) who receive in-center hemodialysis are disproportionately vulnerable to extreme weather events, including hurricanes and heat waves, that may disrupt access to healthcare providers, and life-sustaining treatments. This current era of climate-driven compounding disasters is progressively elevating the level of threat to the health and well-being of patients with ESKD. This analysis brings together multi-disciplinary expertise to explore the contours of this increasingly complex risk landscape. Despite the challenges, important advances have been made for safeguarding this medically high-risk patient population. Hemodialysis services providers have devised innovative systems for preparing their patients and sustaining, or rapidly reestablishing, hemodialysis services in the aftermath of a disaster, and maintaining open lines of communication with their caseloads of ESKD patients throughout all phases of the event. A description of lessons learned along the path towards improved patient support in disasters, is provided. The article concludes with a detailed case example, describing dialysis providers' effective response throughout Hurricane Ian's passage across the State of Florida in 2022. Based on lessons learned, this analysis outlines strategies for protecting patients with ESKD that may be adapted for future climate-potentiated disaster scenarios.

Association Between the Dialysate Bicarbonate and the Pre-dialysis Serum Bicarbonate Concentration in Maintenance Hemodialysis: A Retrospective Cohort Study.

It is unclear whether the use of higher dialysate bicarbonate concentrations is associated with clinically relevant changes in the pre-dialysis serum bicarbonate concentration. The objective is to examine the association between the dialysate bicarbonate prescription and the pre-dialysis serum bicarbonate concentration. This is a retrospective cohort study. The study was performed using linked administrative health care databases in Ontario, Canada. Prevalent adults receiving maintenance in-center hemodialysis as of April 1, 2020 (n = 5414) were included. Patients were grouped into the following dialysate bicarbonate categories at the dialysis center-level: individualized (adjustment based on pre-dialysis serum bicarbonate concentration) or standardized (>90% of patients received the same dialysate bicarbonate concentration). The standardized category was stratified by concentration: 35, 36 to 37, and ≥38 mmol/L. The primary outcome was the mean outpatient pre-dialysis serum bicarbonate concentration at the patient level. We examined the association between dialysate bicarbonate category and pre-dialysis serum bicarbonate using an adjusted linear mixed model. All dialysate bicarbonate categories had a mean pre-dialysis serum bicarbonate concentration within the normal range. In the individualized category, 91% achieved a pre-dialysis serum bicarbonate ≥22 mmol/L, compared to 87% in the standardized category. Patients in the standardized category tended to have a serum bicarbonate that was 0.25 (95% confidence interval [CI] = -0.93, 0.43) mmol/L lower than patients in the individualized category. Relative to patients in the 35 mmol/L category, patients in the 36 to 37 and ≥38 mmol/L categories tended to have a serum bicarbonate that was 0.70 (95% CI = -0.30, 1.70) mmol/L and 0.87 (95% CI = 0.14, 1.60) mmol/L higher, respectively. There was no effect modification by age, sex, or history of chronic lung disease. We could not directly confirm that all laboratory measurements were pre-dialysis. Data on prescribed dialysate bicarbonate concentrations for individual dialysis sessions were not available, which may have led to some misclassification, and adherence to a practice of individualization could not be measured. Residual confounding is possible. We found no significant difference in the pre-dialysis serum bicarbonate concentration irrespective of whether an individualized or standardized dialysate bicarbonate was used. Dialysate bicarbonate concentrations ≥38 mmol/L (vs 35 mmol/L) may increase the pre-dialysis serum bicarbonate concentration by 0.9 mmol/L.