Outcomes of infants <28 days old treated with peritoneal dialysis for end-stage renal disease

Uncovering a Long-term Graft Survival Advantage Afforded by Infant Renal Transplants-An Organ Procurement and Transplantation Network Database Analysis

Background.

Renal transplants (Tx) are performed infrequently in infants, due to concerns related to poor outcomes. The aim of our study was to compare graft failure rates in infant (<1 y) renal Tx recipients compared with older children.

Methods.

Retrospective cohort study of pediatric renal Tx recipients from 2000 to 2015, using the Organ Procurement and Transplant Network database. A log-linear event history regression model for time to graft failure, adjusting for age group and important confounders, was used to estimate post-Tx graft failure probabilities.

Results.

In 2696 Tx followed for a median of 6.1 y, 704 failures were observed. Significant predictors of graft failure were year of Tx (for each year after 2000, rates were 8.6% lower), Black race-ethnicity (63% higher compared with Whites), and number of HLA matches. For infants (n = 27), estimated graft failure percentage (95% confidence interval) within the first 1-, 2-, and 5-y post-Tx were 10.4 (0.1–21.1), 11.9 (1.2–22.6), and 16.4 (4.9–27.9). For the 1- to 11-y-olds (n = 1429), these were 3.8 (3.0–4.6), 6.3 (5.4–7.3), and 13.6 (12.2–15.0), respectively, and for the 12+ y olds (n = 1240), they were 3.8 (3.1–4.5), 8.1 (7.2–9.0), and 19.9 (18.1–21.7), respectively (P < 0.001 for 5-y graft failure rate across age groups).

Conclusions.

Infant renal Tx recipients experience a higher graft failure rate in the first year, compared with older cohorts, but over longer intervals, cumulative failure rates are comparable or even lower. To minimize early graft losses such Tx should be performed in experienced centers.

Outcomes of infants receiving chronic peritoneal dialysis: an analysis of the USRDS registry

BACKGROUND

Outcome data for infants on chronic peritoneal dialysis (CPD) is limited and has been based primarily on the analyses of voluntary entry registry data. In contrast, the United States Renal Data Systems (USRDS) collects data on all infants with end-stage kidney disease (ESKD) on chronic dialysis in the USA. We aimed to describe the clinical characteristics of this population and to determine the associated patient mortality.

METHODS

The USRDS database was reviewed retrospectively for data on infants who initiated CPD at ≤ 12 months of age from 1990 to 2014. Infants were categorized into four groups, CPD initiation age (≤ 1 month of age or neonates and > 1-12 months of age or older infants) and initiation era (1990-1999 and 2000-2014).

RESULTS

A total of 1723 infants (574 neonates and 1149 older infants) were identified. Overall, 20.9% of infants (147 neonates and 213 older infants) died on dialysis during the follow-up. The most commonly identified causes of death on dialysis were cardiorespiratory disease (25.8%) and infection (22.8%). There was an increased risk for mortality in all infants who initiated CPD in the earlier initiation era (1990-1999) vs the later era (2000-2014) (aHR of 1.95), for females vs males (aHR 1.43), and for those with a primary diagnosis of cystic kidney diseases vs congenital anomalies of the kidney and urinary tract (CAKUT) (aHR 1.84). In 2000-2014, patient survival at 1 and 5 years was 86.8% and 74.6% for those who initiated CPD as neonates and 89.6% and 79.3% for those who did so as older infants.

CONCLUSIONS

In this large cohort of infants who received chronic peritoneal dialysis over more than two decades, the probability of survival after initiating CPD in the first year of life has significantly improved. There is no difference in the probability of death for neonates compared to older infants. However, the mortality rate remains substantial in association with multiple risk factors.

Prenatal parental decision-making and postnatal outcome in renal oligohydramnios

BACKGROUND

Previous studies on renal oligohydramnios (ROH) report highly variable outcome and identify early onset of ROH and presence of extrarenal manifestations as predictors of adverse outcome in most cases. Data on termination of pregnancy (TOP) and associated parental decision-making processes are mostly missing, but context-sensitive for the interpretation of these findings. We provide here a comprehensive analysis on the diagnosis, prenatal decision-making and postnatal clinical course in all pregnancies with ROH at our medical centre over an 8-year period.

METHODS

We report retrospective chart review data on 103 consecutive pregnancies from 2008 to 2015 with a median follow-up of 554 days.

RESULTS

After ROH diagnosis, 38 families opted for TOP. This decision was associated with onset of ROH (p < 0.001), underlying renal disease (p = 0.001) and presence of extrarenal manifestations (p = 0.02). Eight infants died in utero and 8 cases were lost to follow-up. Of the 49 liveborn children, 11 received palliative and 38 underwent active care. Overall survival of the latter group was 84.2% (n = 32) corresponding to 31% of all pregnancies (32 out of 103) analysed. One third of the surviving infants needed renal replacement therapy during the first 6 weeks of life.

CONCLUSIONS

Over one third of pregnancies with ROH were terminated and the parental decision was based on risk factors associated with adverse outcome. Neonatal death was rare in the actively treated infants and the overall outcome promising. Our study illustrates that only careful analysis of the whole process, from prenatal diagnosis via parental decision-making to postnatal outcome, allows sensible interpretation of outcome data.

Actualidad del Tratamiento Renal Sustitutivo Pediátrico

Son escasos los datos sobre la incidencia de ERC en los niños y es posible que esté subestimada pues en muchos casos los estadios iniciales no se diagnostican. Los registros europeos muestran en esta población una prevalencia de entre 59-74 por millón de población y el Registro Español Pediátrico de ERC no terminal (REPIR II), que recoge estadios más tempranos, encontró una prevalencia superior a 128 por millón de población. La enfermedad es más frecuente en varones y la causa principal las anomalías estructurales1,2. El paciente renal pediátrico necesita de un seguimiento riguroso por equipos especializados que traten precozmente las alteraciones que se producen en su metabolismo y crecimiento. El control de la enfermedad mineral ósea, de la anemia y del crecimiento se ha de complementar con la intervención nutricional puesto que la malnutrición es muy frecuente, todo ello requiere del seguimiento por unidades especializada

A Regional Evaluation of Survival of Infants with End-Stage Renal Disease

BACKGROUND

Information regarding morbidity and mortality of infants born with end-stage renal disease (ESRD) requiring dialysis early in life is critical to optimize patient care and better counsel families.

OBJECTIVE

We evaluated outcomes of infants born regionally with ESRD, and those within our broader catchment area referred for dialysis.

STUDY DESIGN

We screened deaths at 5 regional referral hospitals, identifying infants with ESRD who did not survive to transfer for dialysis. We also screened all infants <8 weeks old seen at our institution over a 7-year period with ESRD referred for dialysis. We evaluated factors associated with survival to dialysis and transplant.

RESULTS

We identified 14 infants from regional hospitals who died prior to transfer and 12 infants at our institution who were dialyzed. Because of the large burden of lethal comorbidities in our regional referral centers, overall survival was low, with 73% dying at birth hospitals. Amongst dialyzed infants, 42% survived to transplant.

CONCLUSION

This study is unusual in reporting survival of infants with ESRD including those not referred for dialysis, which yields an expectedly lower survival rate than reported by dialysis registries.

Prolonged respiratory disorder predicts adverse prognosis in infants with end-stage kidney disease

BACKGROUND

Among comorbidities, pulmonary hypoplasia (PH) is known as a significant risk factor for mortality in infants with end-stage kidney disease (ESKD). However, the final outcomes of infants with both ESKD and PH are still not well defined, as the diagnosis modality, and definition of PH severity remain ambiguous.

METHODS

Children initiating peritoneal dialysis during infancy from 1990 to 2015 were followed until death, date of last contact, or the end of 2015. We examined the long-term outcome of children with congenital pulmonary disorders by studying infants with prolonged respiratory disorders of greater than 28 days duration after birth and evaluated risk factors for mortality.

RESULTS

Forty-six children were followed (median follow-up, 9.23 years), and classified as children without (n = 38; Group A) or with (n = 8; Group B) a prolonged respiratory disorder. Overall actuarial 5 year survival rate in this cohort was 79.5 %. The survival curve in Group B showed a significant decline compared with Group A. Prolonged respiratory disorder was significantly associated with mortality by multivariate analysis (hazard ratio, 8.32).

CONCLUSIONS

Infants who initiate peritoneal dialysis complicated by prolonged respiratory disorders have increased adverse risk factors for mortality; therefore, withholding aggressive treatment should be considered.

Update on Ethical Issues in Pediatric Dialysis: Has Pediatric Dialysis Become Morally Obligatory?

Improvements in pediatric dialysis over the past 50 years have made the decision to proceed with dialysis straightforward for the majority of pediatric patients. For certain groups, however, such as children with multiple comorbid conditions, children and families with few social and economic resources, and neonates and infants, the decision of whether to proceed with dialysis remains much more controversial. In this review, we will examine the best available data regarding the outcomes of dialysis in these populations and analyze the important ethical considerations that should guide decisions regarding dialysis for these patients. We conclude that providers must continue to follow a nuanced and individualized approach in decision making for each child and to recognize that, regardless of the decision reached about dialysis, there is a continued duty to care for patients and families to maximize the remaining quality of their lives.

Long-term hemodialysis therapy in neonates and infants with end-stage renal disease: a 16-year experience and outcome

BACKGROUND

Peritoneal dialysis is the preferred mode of renal replacement therapy in infants with end-stage renal disease (ESRD). Hemodialysis (HD) is seldom used in neonates and infants due to the risk of major complications in the very young.

METHODS

Demographic, clinical, laboratory, and imaging data on all infants younger than 12 months with ESRD who received HD in our Pediatric Dialysis Unit between January 1997 and June 2013 were analyzed.

RESULTS

Eighteen infants (n = 6 male) with ESRD (median age 3 months; median weight 4.06 kg) received HD through a central venous catheter (CVC) for a total of 543 months (median duration per infant 16 months). Seven of the infants (39%) were neonates, and five (28%) had serious comorbidities. There were five episodes of CVC infection, which is a rate of 0.3/1000 CVC days. Median catheter survival time was 320 days. Most infants had good oral intake, and only four (22%) required a gastric tube; 14 (78%) infants displayed normal growth. Fourteen (78%) infants had hypertension, of whom four (22%) had severe cardiac complications; eight (44%) showed delayed psychomotor development. Eleven (61%) of the infants, including six (86%) of the neonates, survived. Five (28%) infants underwent renal transplantation; 10-year graft survival was 80%.

CONCLUSIONS

Based on these results, long-term HD in neonates and infants with ESRD is technically feasible, can be implemented without major complications, carries a very low rate of CVC infection and malfunction, and results in adequate nutrition, good growth, as well as good kidney graft and patient survivals. Future efforts should aim to prevent hypertension and its cardiac sequelae, improve neurodevelopmental outcome, and lower mortality rate in these infants.

Sustaining life or prolonging dying? Appropriate choice of conservative care for children in end-stage renal disease: an ethical framework

Due to technological advances, an increasing number of infants and children are surviving with multi-organ system dysfunction, and some are reaching end-stage renal disease (ESRD). Many have quite limited life expectancies and may not be eligible for kidney transplantation but families request dialysis as alternative. In developed countries where resources are available there is often uncertainty by the medical team as to what should be done. After encountering several of these scenarios, we developed an ethical decision-making framework for the appropriate choice of conservative care or renal replacement therapy in infants and children with ESRD. The framework is a practical tool to help determine if the burdens of dialysis would outweigh the benefits for a particular patient and family. It is based on the four topics approach of medical considerations, quality-of-life determinants, patient and family preferences and contextual features tailored to pediatric ESRD. In this article we discuss the basis of the criteria, provide a practical framework to guide these difficult conversations, and illustrate use of the framework with a case example. While further research is needed, through this approach we hope to reduce the moral distress of care providers and staff as well as potential conflict with the family in these complex decision-making situations.

Outcome of Patients Initiating Chronic Peritoneal Dialysis During the First Year of Life

BACKGROUND AND OBJECTIVE

Among children with end-stage renal disease (ESRD), those who abstract initiated chronic dialysis during the first year of life historically were less likely to survive or receive a kidney transplant compared with those who initiated dialysis later in childhood.We hypothesized that recently treated infants have experienced improved outcomes.

METHODS

We queried the North American Pediatric Renal Trials and Collaborative Studies database, obtaining information on 628 children who initiated maintenance peritoneal dialysis for treatment of ESRD at ,1 year of age. We further subcategorized these children by age(neonates, #31 days and infants, 32–365 days) and date of dialysis initiation (past,1992–1999, and recent, 2000–2012).

RESULTS

Survival while on dialysis and overall survival were significantly better among neonates and infants in the recent cohort. Overall survival at 3 years after dialysis initiation was 78.6%and 84.6% among the recently treated neonates and infants, respectively. Neonates and infants in the recent cohort also were more likely to terminate dialysis for transplantation, and graft survival was improved among recently transplanted infants (3-year graft survival 92.1%).

CONCLUSIONS

Among children who initiate chronic peritoneal dialysis for treatment of ESRD in the first year of life, survival has improved in recent years. Graft survival also has improved for the subset of these patients who received a kidney transplant.

Consensus expert recommendations for the diagnosis and management of autosomal recessive polycystic kidney disease: report of an international conference

Autosomal recessive polycystic kidney disease (ARPKD; MIM 263200) is a severe, typically early onset form of cystic disease that primarily involves the kidneys and biliary tract. Phenotypic expression and age at presentation can be quite variable1 . The incidence of ARPKD is 1 in 20,000 live births2 , and its pleotropic manifestations are potentially life-threatening. Optimal care requires proper surveillance to limit morbidity and mortality, knowledgeable approaches to diagnosis and treatment, and informed strategies to optimize quality of life. Clinical management therefore is ideally directed by multidisciplinary care teams consisting of perinatologists, neonatologists, nephrologists, hepatologists, geneticists, and behavioral specialists to coordinate patient care from the perinatal period to adulthood. In May 2013, an international team of 25 multidisciplinary specialists from the US, Canada, Germany, and the United Kingdom convened in Washington, DC, to review the literature published from 1990 to 2013 and to develop recommendations for diagnosis, surveillance, and clinical management. Identification of the gene PKHD1, and the significant advances in perinatal care, imaging, medical management, and behavioral therapies over the past decade, provide the foundational elements to define diagnostic criteria and establish clinical management guidelines as the first steps towards standardizing the clinical care for ARPKD patients. The key issues discussed included recommendations regarding perinatal interventions, diagnostic criteria, genetic testing, management of renal and biliary-associated morbidities, and behavioral assessment. The meeting was funded by the National Institutes of Health and an educational grant from the Polycystic Kidney Disease Foundation. Here we summarize the discussions and provide an updated set of diagnostic, surveillance, and management recommendations for optimizing the pediatric care of patients with ARPKD. Specialist care of ARPKD-related complications including dialysis, transplantation, and management of severe portal hypertension will be addressed in a subsequent report. Given the paucity of information regarding targeted therapies in ARPKD, this topic was not addressed in this conference.”

Clinical practice recommendations for the care of infants with stage 5 chronic kidney disease (CKD5)

BACKGROUND

To provide recommendations for the care of infants with stage 5 chronic kidney disease (CKD5).

SETTING

European Paediatric Dialysis Working Group.

DATA SOURCES

Literature on clinical studies involving infants with CKD5 (end stage renal failure) and consensus discussions within the group.

RECOMMENDATIONS

There has been an important change in attitudes towards offering RRT (renal replacement therapy) to both newborns and infants as data have accumulated on their improved survival and long-term outcomes. The management of this challenging group of patients differs in a number of ways from that of older children. The authors have summarised the basic recommendations for treating infants with CKD5 in order to support the multidisciplinary teams who endeavour on this difficult task.

Critical and honest conversations: the evidence behind the "Choosing Wisely" campaign recommendations by the American Society of Nephrology

Estimates suggest that one third of United States health care spending results from overuse or misuse of tests, procedures, and therapies. The American Board of Internal Medicine Foundation, in partnership with Consumer Reports, initiated the "Choosing Wisely" campaign to identify areas in patient care and resource use most open to improvement. Nine subspecialty organizations joined the campaign; each organization identified five tests, procedures, or therapies that are overused, are misused, or could potentially lead to harm or unnecessary health care spending. Each of the American Society of Nephrology's (ASN's) 10 advisory groups submitted recommendations for inclusion. The ASN Quality and Patient Safety Task Force selected five recommendations based on relevance and importance to individuals with kidney disease.Recommendations selected were: (1) Do not perform routine cancer screening for dialysis patients with limited life expectancies without signs or symptoms; (2) do not administer erythropoiesis-stimulating agents to CKD patients with hemoglobin levels ≥10 g/dl without symptoms of anemia; (3) avoid nonsteroidal anti-inflammatory drugs in individuals with hypertension, heart failure, or CKD of all causes, including diabetes; (4) do not place peripherally inserted central catheters in stage 3-5 CKD patients without consulting nephrology; (5) do not initiate chronic dialysis without ensuring a shared decision-making process between patients, their families, and their physicians.These five recommendations and supporting evidence give providers information to facilitate prudent care decisions and empower patients to actively participate in critical, honest conversations about their care, potentially reducing unnecessary health care spending and preventing harm.

Hemodiafiltration in infants with complications during peritoneal dialysis

End-stage renal disease (ESRD) in neonates still has a high mortality, particularly in the first year of life. We present the combination of peritoneal dialysis (PD) with intermittent hemodiafiltration (iHDF) in neonates with ESRD. Four infants younger than 28 days were treated with PD and iHDF. Renal diagnoses leading to ESRD were cortical necrosis, prune belly syndrome, neonatal hemolytic uremic syndrome, and autosomal recessive polycystic kidney disease. Initially, three patients were on iHDF until PD was started. At the time when complications occurred during PD, patients were switched back to iHDF. iHDF was used five times as a bridge to PD in case of abdominal surgery. Two of the four patients were switched to iHDF because of peritoneal ultrafiltration failure due to recurrent peritoneal leaks. Once, iHDF became necessary due to refractory peritonitis. All four patients survived the first year of life. Two patients were transplanted successfully at an age of 35 and 22 months, respectively. The others are on renal replacement therapy, one on PD at the age of 28 months and one on iHDF at the age of 25 months, respectively. In case of PD complications, iHDF may be an appropriate bridge to achieve long-term survival until kidney transplantation.

Attitudes of Caregivers to Management of End-Stage Renal Disease in Infants

Objectives

To characterize the attitudes of pediatric nephrologists caring for infants with end-stage renal disease (ESRD) compared with attitudes from a survey published in 1998. Nephrology nurses and social workers were included.

Methods

An e-mail survey was distributed to pediatric nephrology teams in Canada, Germany, Japan, the United Kingdom, and the United States.

Results

Survey responders totaled 270. Renal replacement therapy (RRT) is offered by all nephrologists to some children 1 – 12 months, and by 98% to some less than 1 month of age (93% in 1998). Of responding nephrologists, 30% offer RRT to all children less than 1 month of age (41% in 1998), and 50%, to all children 1 – 12 months. Among respondents, 50% indicated that parents can never refuse RRT for children aged 1 – 12 months, compared with 27% for younger infants. The most influential factor in rejecting RRT for infants was the presence of a co-existing abnormality. Nurses were more likely to believe that parents have the right to refuse RRT for infants.

Conclusions

Attitudes of pediatric nephrologists have changed since 1998. Also, nurses have opinions that are different from those of the nephrologists on some issues, and a consensus should be reached before speaking to families.

Peritoneal dialysis in infants: the experience of the Italian Registry of Paediatric Chronic Dialysis

BACKGROUND

Although chronic peritoneal dialysis (CPD) is considered the replacement therapy of choice for infants with end-stage renal failure, many questions persist about treatment risks and outcomes.

METHODS

We present data on 84 infants who started CPD at <1 year of age; these patients represent 12% of the total population of the Italian Registry of Paediatric Chronic Dialysis. We analysed patient records from all children consecutively treated with CPD between 1995 and 2007 in Italy. Growth data analysis was performed only in infants with complete auxological parameters at 0, 6 and 12 months of follow-up.

RESULTS

Median age at the start of CPD was 6.9 months, weight was 6.1 kg and length 63.6 cm. In one-half of the study population diagnosis leading to renal failure was congenital nephrouropathy. Twenty-eight per cent of the children had at least one pre-existing comorbidity. The mean height standard deviation score was -1.65 at the start of CPD, -1.82 after 12 months and -1.53 after 24 months. Catch-up growth was documented in 50% of patients during dialysis. A positive correlation was observed between longitudinal growth and both exchange volume (R(2) = 0.36) and dialysis session length (R(2) = 0.35), while a negative association was found with the number of peritonitis cases (P = 0.003). Peritonitis incidence was 1:20.7 episode:CPD-months (1:28.3 in the older children from the same registry) and was significantly higher in children with oligoanuria (1:15.5 episode:CPD-months) compared to infants with residual renal function (1:37.4 episode:CPD-months). Catheter survival rate was 70% at 12 months and 51% at 24 months. Catheter-related complications were similar in infants and older children (1:20.5 versus 1:19.8 episode:CPD-months), while clinical complications were more frequent in children under 1 year of age (1:18.3 versus 1:25.2 episode:CPD-months; P < 0.05). During the follow-up period, 33 patients were transplanted (39.3%), 18 were shifted to haemodialysis (21.4%) and 8 died (9.5%). The mortality rate was 4-fold greater than in older children (2.3%).

CONCLUSIONS

Our data confirm that infants on CPD represent a high-risk group; however, our experience demonstrated that growth was acceptable and a large portion was successfully transplanted. Increased efforts should be aimed at optimizing dialysis efficiency and preventing peritonitis. The higher mortality rate in infants was largely caused by comorbidities.

The challenge of maintaining dialysis lines in the under twos

INTRODUCTION

Hemodialysis (HD) and peritoneal dialysis (PD) are essential adjuncts in the management of children with established renal failure (ERF), but complications are common, particularly in the younger age groups. We reviewed catheter life and catheter-related complications in children who began chronic dialysis before the age of 2 years.

METHOD

From the case notes of the children, born between 1990 and 2008, the data gathered included etiology of ERF, age at first dialysis catheter, complications, catheter life, and number of PD and HD.

RESULTS

Ninety lines were inserted (40 PD and 50 HD) in 22 children with ERF. Eleven children were aged <6 months when commencing dialysis, six of whom were neonates. PD, the preferred modality, was offered to all but two children. Four children were managed with PD alone. One child died of overwhelming sepsis secondary to PD peritonitis. Average catheter life for HD was 3 months and PD 9.1 months. Luminal blockage and infection were the commonest reasons for change of HD catheters. Peritonitis was the commonest factor leading to PD removal.

CONCLUSIONS

Children younger than 2 years can be dialyzed successfully by HD or PD but complications are frequent, leading to >2 catheters in the majority. Chronic dialysis in the very young is achievable and useful, but a high incidence of catheter changes must be anticipated.