Assessment of a Peer Support Group Intervention for Undocumented Latinx Immigrants With Kidney Failure.

Importance: Most undocumented immigrants with kidney failure rely on emergency dialysis (defined as dialysis after a patient presents as critically ill) and experience significant depression and anxiety and high mortality. Culturally and language-concordant peer support group interventions may be associated with reduced depression and anxiety and may provide emotional support. Objective: To investigate the feasibility and acceptability of a single-group peer support group intervention. Design, setting, and participants: This qualitative and single-group prospective study for undocumented immigrants with kidney failure receiving emergency dialysis was conducted in Denver, Colorado, from December 2017 to July 2018. The 6-month intervention included peer support group meetings in the hospital while participants were hospitalized for emergency dialysis. Data were analyzed from March to June 2022. Main outcomes and measures: To assess feasibility, the recruitment, retention, implementation, and delivery for the intervention were tracked. To measure acceptability, interviews were conducted with participants using a structured format. To assess the value of the peer support group intervention, themes and subthemes were identified from interviews with participants and group meetings. Results: Of 27 undocumented immigrants with kidney failure receiving emergency dialysis, 23 participants (9 females [39.1%] and 14 males [60.9%]; mean [SD] age, 47 [8] years) agreed to participate (recruitment rate, 85.2%). Among them, 5 individuals withdrew and did not attend meetings and 18 participants (retention rate, 78.3%) attended a mean of 6 of 12 meetings (50.0%). From interviews and meetings, 3 themes, with associated subthemes, were identified: camaraderie and emotional support from peers (subthemes: peer support is vital for people newly diagnosed with kidney failure, safe space to build relationships and share hardship with peers, hospital setting for peer support is ideal, solidarity to survive and change policy, and sustainability of the peer support group), solutions to improve care and resilience (subthemes: self-advocacy, self-motivation and optimism, kidney disease education, emotional support from peers caregivers, and faith), and emotional and physical aspects of receiving emergency dialysis (subthemes: psychosocial and physical distress, mixed experiences with language-concordant care, emotional exhaustion from end-of-life conversations, and gratitude for clinicians). Conclusions and relevance: This study found that peer support group intervention achieved feasibility and acceptability. The findings suggest that a peer support group may be a patient-centered strategy to build camaraderie and provide emotional support in kidney failure, especially for socially marginalized uninsured populations who report limited English proficiency.

Sources of Clinician Burnout in Providing Care for Underserved Patients in a Safety-Net Healthcare System.

BACKGROUND: Burnout among clinicians is common and can undermine quality of care, patient outcomes, and workforce preservation, but sources of burnout or protective factors unique to clinicians working in safety-net settings are less well understood. Understanding these clinician experiences may inform interventions to reduce burnout. OBJECTIVE: To describe clinician perspectives on sources of burnout in a safety-net healthcare system. DESIGN: Semi-structured interviews were conducted with clinicians from multiple disciplines who provided care at a safety-net healthcare system from October 2018 to January 2019. Transcripts were analyzed using thematic analysis. PARTICIPANTS: Forty clinicians (25 female and 15 male; mean [SD] age, 41 [9.1]) participated, including physicians, social workers, advanced practice providers, nurses, psychologists, physical and occupational therapists, and other healthcare professionals. MAIN OUTCOMES AND MEASURES: Themes and subthemes that reflected clinician experiences, burnout, and workload expectations. KEY RESULTS: Five themes emerged: limited resources (entrenched social injustices, brokenness of the US healthcare system, precarious discharge options, and "revolving door" readmissions), barriers to building trust with patients (chasm of communication, addressing fear and mistrust, and being exposed to threats), administrative requirements (criticism hampering meaningful care, assuming extra workloads, bureaucratic burden), compassion fatigue (confronting traumatic situations, persistent worry about patient safety and welfare, witnessing mistreatment and stigmatization, overextending and overinvesting, withdrawing and shutting down, blaming self and career crisis), and advocacy as a counterbalance to burnout (solidarity when helping underserved communities, fervent advocacy, and patient gratitude). CONCLUSIONS: Among clinicians who provide care in a safety-net healthcare system, sources of burnout included limited resources, barriers to building trust with patients, administrative requirements, and compassion fatigue, but clinicians remained driven by their desire to advocate for patients. Policy-level interventions which increase funding to safety-net healthcare systems to bolster existing resources and staffing, create peer-support and wellness programs, and support advocacy efforts may mitigate burnout.

The Experience of Primary Caregivers of Undocumented Immigrants with End-Stage Kidney Disease that Rely on Emergency-Only Hemodialysis.

BACKGROUND: Undocumented immigrants with end-stage kidney disease (ESKD) who rely on emergency-only hemodialysis (dialysis only after an emergency department evaluation) face psychosocial distress. Emergency-only hemodialysis (EOHD) is likely burdensome for primary caregivers as well. OBJECTIVE: To understand the experience of primary caregivers of undocumented immigrants with ESKD who rely on emergency-only hemodialysis. DESIGN, SETTING, AND PARTICIPANTS: A qualitative, semi-structured interview study to assess the experiences of primary caregivers of undocumented immigrants with ESKD at a safety-net hospital in Denver, Colorado from June 28 to November 15, 2018. Applied thematic analysis was used to analyze interviews. MAIN OUTCOMES AND MEASURES: Themes and subthemes. RESULTS: Twenty primary caregiver participants had a mean (SD) age of 46 (17), 13 (65%) were female, 7 (35%) were in an adult child caregiver role, and 13 (65%) were spouses. Five themes and 17 subthemes (in parentheses) were identified: (1) Caregiver role (providing emotional, physical, and economic support, advocacy and care navigation), (2) Caregiver burden (anxiety related to patient and personal death, emotional exhaustion and personal illness, struggle with finances, self-care and redefining relationship), (3) Unpredictable EOHD (acute episodes of illness that trigger emergency, stress when patient is denied dialysis, impact on work and sleep, and emotional relief after a session of EOHD), (4) Effect on children (dropping out or missing school, psychosocial distress, children assuming caregiver responsibilities, and juggling multi-generational caregiving of children), (5) Faith and appreciation (comfort in God and appreciation of healthcare). CONCLUSIONS AND RELEVANCE: Caregivers of undocumented immigrants with ESKD who rely upon EOHD experience caregiver burden and distress. The impact of EOHD on caregivers should be considered when assessing the consequences of excluding undocumented immigrants from public insurance programs.

Barriers to providing optimal dialysis care for undocumented immigrants: Policy challenges and solutions.

Access to hemodialysis for undocumented immigrants with end stage renal disease (ESRD) is widely variable across the United States and highly dependent upon state policy. Some states have enacted policies to provide coverage for standard dialysis to undocumented immigrants, while other states do not provide coverage. Patients living in some states which do not provide coverage rely on emergency federal coverage through the Emergency Medical Treatment and Active Labor Act. However, this act requires that patients present with an acute, life-threatening condition in order to receive dialysis, which is then referred to as "emergency-only hemodialysis" (EoHD). Because EoHD requires patients to present in life-threatening condition, patients who rely on EoHD suffer from debilitating physical symptoms and psychosocial distress. Undocumented immigrants who receive EoHD also have staggeringly higher mortality rates than those who receive standard hemodialysis. Moreover, in comparison with standard dialysis, EoHD results in greater health care utilization and higher health care costs. Therefore, EoHD represents a very low value care practice, providing substandard care at a greater cost. Policy change is urgently needed to provide undocumented immigrants with ESRD access to the standard of care; that is, three-times weekly standard hemodialysis or peritoneal dialysis.

Hemodialysis care for undocumented immigrants with end-stage renal disease in the United States.

PURPOSE OF REVIEW: Across the United States, significant variation exists in the provision of care of undocumented immigrants with end-stage renal disease (ESRD), with some states providing standard dialysis, and other states providing emergency-only hemodialysis (EoHD). RECENT FINDINGS: EoHD is associated with higher morbidity and mortality compared with standard hemodialysis. EoHD is also associated with higher healthcare utilization, resulting in more emergency department visits, more days spent in the hospital, and higher healthcare costs. Undocumented immigrants with ESRD who rely on EoHD also experience crippling and potentially fatal physical symptoms as well as psychosocial suffering, with some patients describing recurrent near-death experiences. Clinicians who provide EoHD to undocumented patients report experiencing moral distress and symptoms of professional burnout because of providing care that they perceive as unethical and far below the standard of care. SUMMARY: Undocumented immigrants with ESRD who rely on EoHD have worse health outcomes and quality of life compared with patients who receive standard hemodialysis. EoHD is also more costly to the healthcare system. Healthcare policy reform is critical as more research demonstrates the worse clinical outcomes and higher costs of EoHD.

Relation of left atrial dysfunction to ischemic stroke in patients with coronary heart disease (from the heart and soul study).

This study sought to determine whether left atrial (LA) dysfunction independently predicts ischemic stroke. Atrial fibrillation (AF) impairs LA function and is associated with ischemic stroke. However, ischemic stroke frequently occurs in patients without known AF. The direct relation between LA function and risk of ischemic stroke is unknown. We performed transthoracic echocardiography at rest in 983 subjects with stable coronary heart disease. To quantify LA dysfunction, we used the left atrial function index (LAFI), a validated formula incorporating LA volumes at end-atrial systole and diastole. Cox proportional hazards models were used to evaluate the association between LAFI and ischemic stroke or transient ischemic attack (TIA). Over a mean follow-up of 7.1 years, 58 study participants (5.9%) experienced an ischemic stroke or TIA. In patients without known baseline AF or warfarin therapy (n = 893), participants in the lowest quintile of LAFI had >3 times the risk of ischemic stroke or TIA (hazard ratio 3.3, 95% confidence interval 1.1 to 9.7, p = 0.03) compared with those in the highest quintile. For each standard deviation (18.8 U) decrease in LAFI, the hazard of ischemic stroke or TIA increased by 50% (hazard ratio 1.5, 95% confidence interval 1.0 to 2.1, p = 0.04). Among measured echocardiographic indexes of LA function, including LA volume, LAFI was the strongest predictor of ischemic stroke or TIA. In conclusion, LA dysfunction is an independent risk factor for stroke or TIA, even in patients without baseline AF.

Vitamin D deficiency and cardiovascular events in patients with coronary heart disease: data from the Heart and Soul Study.

A growing body of evidence supports an association between vitamin D and cardiovascular disease. However, the mechanisms underlying this association are unknown. From 2000 to 2002, we identified 946 participants with stable cardiovascular disease in San Francisco, California, and followed them prospectively for cardiovascular events (heart failure, myocardial infarction, stroke, or cardiovascular death). We then examined the extent to which the association was attenuated by adjustment for poor health behaviors, comorbid health conditions, and potential biological mediators. During a median follow-up period of 8.0 years (through August 24, 2012), 323 subjects (34.1%) experienced a cardiovascular event. Following adjustment for sociodemographic factors, season of blood measurement, health behaviors, and comorbid conditions, 25-hydroxyvitamin D levels under 20 ng/mL remained independently associated with cardiovascular events (hazard ratio = 1.30, 95% confidence interval: 1.01, 1.67). However, after further adjustment for potential biological mediators, the independent association was no longer present (hazard ratio = 1.11, 95% confidence interval: 0.85, 1.44). Parathyroid hormone, a potentially modifiable biological factor downstream from 25-hydroxyvitamin D, was responsible for the majority of this attenuation. These findings highlight the need for randomized controlled trials to determine whether vitamin D supplementation in persons with deficiency could be beneficial for the primary or secondary prevention of cardiovascular events.

Association of CHADS2, CHA2DS2-VASc, and R2CHADS2 scores with left atrial dysfunction in patients with coronary heart disease (from the Heart and Soul study).

The predictive ability of the CHADS2 index to stratify stroke risk may be mechanistically linked to severity of left atrial (LA) dysfunction. This study investigated the association between the CHADS2 score and LA function. We performed resting transthoracic echocardiography in 970 patients with stable coronary heart disease and normal ejection fraction and calculated baseline LA functional index (LAFI) using a validated formula: (LA emptying fraction×left ventricular outflow tract velocity time integral)/LA end-systolic volume indexed to body surface area. We performed regression analyses to evaluate the association between risk scores and LAFI. Among 970 subjects, mean CHADS2 was 1.7±1.2. Mean LAFI decreased across tertiles of CHADS2 (42.8±18.1, 37.8±19.1, 36.7±19.4, p<0.001). After adjustment for age, sex, race, systolic blood pressure, hyperlipidemia, myocardial infarction, revascularization, body mass index, smoking, and alcohol use, high CHADS2 remained associated with the lowest quartile of LAFI (odds ratio 2.34, p=0.001). In multivariable analysis of component co-morbidities, heart failure, age, and creatinine clearance<60 ml/min were strongly associated with LA dysfunction. For every point increase in CHADS2, the LAFI decreased by 4.0%. Secondary analyses using CHA2DS2-VASc and R2CHADS2 scores replicated these results. Findings were consistent when excluding patients with baseline atrial fibrillation. In conclusion, CHADS2, CHA2DS2-VASc, and R2CHADS2 scores are associated with LA dysfunction, even in patients without baseline atrial fibrillation. These findings merit further study to determine the role of LA dysfunction in cardioembolic stroke and the value of LAFI for risk stratification.

Urine calcium excretion, cardiovascular events, and mortality in outpatients with stable coronary artery disease (from the Heart and Soul study).

We sought to evaluate the association of urine calcium excretion (UCaE), which reflects systemic calcium absorption, with cardiovascular (CV) events and mortality in outpatients with prevalent coronary heart disease (CHD). Calcium supplementation is associated with vascular calcification and adverse CV outcomes in patients with end-stage renal disease. Recent studies have raised concern that this phenomenon may also extend to the general population. However, previous studies have assessed oral calcium intake, which correlates poorly with systemic calcium absorption. We measured UCaE from 24-hour urine collections provided by 903 outpatients who were recruited from 2000 to 2002. We used Cox proportional hazard models to evaluate the association of baseline UCaE with a primary end point of any CV event (myocardial infarction [MI], heart failure, stroke, or CV mortality). During a mean follow-up of 6 ± 3 years, 287 subjects (32%) had a CV event. After multivariate adjustment for demographics, traditional CV risk factors, and kidney function, there was no association between UCaE and the primary end point of any CV event (per 10-mg/day greater UCaE, hazard ratio 1.00, 95% confidence interval 0.98 to 1.02). Evaluation of individual CV outcomes revealed a lower rate of MI with higher UCaE (hazard ratio 0.97, 95% confidence interval 0.94 to 1.00). In conclusion, greater UCaE is not associated with higher overall CV event rates or mortality in outpatients with stable CHD. On the contrary, greater UCaE is associated with a modestly lower rate of MI. These findings suggest that greater systemic calcium absorption does not confer CV harm in outpatients with prevalent CHD.

Left atrial function predicts heart failure hospitalization in subjects with preserved ejection fraction and coronary heart disease: longitudinal data from the Heart and Soul Study.

OBJECTIVES: This study sought to determine whether left atrial (LA) dysfunction predicts heart failure (HF) hospitalization in subjects with preserved baseline ejection fraction (EF). BACKGROUND: Among patients with preserved EF, factors leading to HF are not fully understood. Cross-sectional studies have demonstrated LA dysfunction at the time of HF, but longitudinal data on antecedent atrial function are lacking. METHODS: We performed resting transthoracic echocardiography in 855 subjects with coronary heart disease and EF ≥50%. Left atrial functional index (LAFI) was calculated as ([LA emptying fraction × left ventricular outflow tract-velocity time integral] / [indexed LA end-systolic volume]), where LA emptying fraction was defined as (LA end-systolic volume--LA end-diastolic volume) / LA end-systolic volume. We used Cox models to evaluate the association between LAFI and HF hospitalization. RESULTS: Over a median follow-up of 7.9 years, 106 participants (12.4%) were hospitalized for HF. Rates of HF hospitalization were inversely proportional to quartile (Q) of LAFI: Q1, 47 per 1,000 person-years; Q2, 18.3; Q3, 9.6; and Q4, 5.3 (p < 0.001). Each standard deviation decrease in LAFI was associated with a 2.6-fold increased hazard of adverse cardiovascular outcomes (unadjusted hazard ratio: 2.6, 95% confidence interval: 2.1 to 3.3, p < 0.001), and the association persisted even after adjustment for clinical risk factors, N-terminal pro-B-type natriuretic peptide, and a wide range of echocardiographic parameters (adjusted hazard ratio: 1.5, 95% confidence interval: 1.0 to 2.1, p = 0.05). CONCLUSIONS: Left atrial dysfunction independently predicts HF hospitalization in subjects with coronary heart disease and preserved baseline EF. The LAFI may be useful for HF risk stratification, and LA dysfunction may be a potential therapeutic target.

The CHADS2 score predicts ischemic stroke in the absence of atrial fibrillation among subjects with coronary heart disease: data from the Heart and Soul Study.

BACKGROUND: We sought to evaluate the prognostic performance of the CHADS(2) score for prediction of ischemic stroke/transient ischemic attack (TIA) in subjects with coronary heart disease (CHD) without atrial fibrillation (AF). METHODS: In 916 nonanticoagulated outpatients with stable CHD and no AF by baseline electrocardiogram, we calculated CHADS(2) scores (congestive heart failure, hypertension, age ≥75 years, diabetes [1 point each], and prior stroke or TIA [2 points]). The primary outcome was time to ischemic stroke or TIA over a mean follow-up of 6.4 ± 2.3 years. RESULTS: Over 5,821 person-years of follow-up, 40 subjects had an ischemic stroke/TIA (rate 0.69/100 person-years, 95% CI 0.50-0.94). Compared with subjects with low (0-1) CHADS(2) scores, those with intermediate (2-3) and high (4-6) CHADS(2) scores had an increased rate of stroke/TIA, even after adjustment for age, tobacco, antiplatelet therapy, statins, and angiotensin inhibitors (CHADS(2) score 2-3: HR 2.4, 95% CI 1.1-5.3, P = .03; CHADS(2) score 4-6: HR 4.0, 95% CI 1.5-10.6, P = .006). Model discrimination (c-statistic = 0.65) was comparable with CHADS(2) model fit in published AF-only cohorts. CONCLUSIONS: The CHADS(2) score predicts ischemic stroke/TIA in subjects with stable CHD and no baseline AF. The event rate in non-AF subjects with high CHADS(2) scores (5-6) was comparable with published rates in AF patients with moderate CHADS(2) scores (1-2), a population known to derive benefit from stroke prevention therapies. These findings should inform efforts to determine whether stroke prevention therapies or screening for silent AF may benefit subjects with stable CHD and high CHADS(2) scores.

Pericardial fat is independently associated with human atrial fibrillation.

OBJECTIVES: The purpose of this study was to investigate the association between atrial fibrillation (AF) and pericardial fat. BACKGROUND: Pericardial fat is visceral adipose tissue that possesses inflammatory properties. Inflammation and obesity are associated with AF, but the relationship between AF and pericardial fat is unknown. METHODS: Pericardial fat volume was measured using computed tomography in 273 patients: 76 patients in sinus rhythm, 126 patients with paroxysmal AF, and 71 patients with persistent AF. RESULTS: Patients with AF had significantly more pericardial fat compared with patients in sinus rhythm (101.6 +/- 44.1 ml vs. 76.1 +/- 36.3 ml, p < 0.001). Pericardial fat volume was significantly larger in paroxysmal AF compared with the sinus rhythm group (93.9 +/- 39.1 ml vs. 76.1 +/- 36.3 ml, p = 0.02). Persistent AF patients had a significantly larger pericardial fat volume compared with paroxysmal AF (115.4 +/- 49.3 ml vs. 93.9 +/- 39.1 ml, p = 0.001). Pericardial fat volume was associated with paroxysmal AF (odds ratio: 1.11; 95% confidence interval: 1.01 to 1.23, p = 0.04) and persistent AF (odds ratio: 1.18, 95% confidence interval: 1.05 to 1.33, p = 0.004), and this association was completely independent of age, hypertension, sex, left atrial enlargement, valvular heart disease, left ventricular ejection fraction, diabetes mellitus, and body mass index. CONCLUSIONS: Pericardial fat volume is highly associated with paroxysmal and persistent AF independent of traditional risk factors including left atrial enlargement. Whether pericardial fat plays a role in the pathogenesis of AF requires future investigation.

Hemoglobinuria and acute kidney injury requiring hemodialysis following intravenous immunoglobulin infusion.

Intravenous immunoglobulin (IVIG), a product initially developed for patients with immunodeficiencies, now has multiple other indications and increasing off-label use. IVIG generally is well tolerated, with few adverse effects. Antibody-mediated (Coombs-positive) hemolysis is known to occur after IVIG infusion, but often is subclinical and previously has not been reported to lead to acute kidney injury (AKI). The predominantly known mechanism of AKI after IVIG infusion has been osmotic nephrosis, primarily associated with sucrose-containing formulations. We present a case of a bone marrow transplant recipient who was treated with a sucrose-free IVIG product and subsequently developed Coombs-positive hemolysis leading to AKI requiring hemodialysis, who ultimately died secondary to infectious complications. The severity of this case emphasizes the importance of identifying populations who may be at increased risk of pigment-mediated kidney injury before consideration of IVIG therapy.