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Purpose: To describe worldwide characteristics, performance and risk factors of peripheral intravenous catheters (PIVCs), in pediatrics., Design: A secondary, subgroup analysis of pediatric (<18 years) data was undertaken, using a global, cross-sectional study of PIVCs. Practice characteristics included: demographic, diagnostic, utility, management, performance and resources. Multivariate regression identified complication risks factors., Results: Data from 4206 children in 278 hospitals across 47 countries. Most PIVCs (outside of Australia, New Zealand) were inserted by nurses (71%; n = 2950), with dedicated teams only common in North America (23.2%; n = 85). Large gauges (≤18G) were mostly used in South America, Europe and Africa. Regions predominantly placed 24G (49%; n = 2060) except in Australia and New Zealand, who more commonly placed 22G (38.7%; n = 192). The most common placement was the hand (51%; n = 2143), however North America, Australia and New Zealand frequently utilised the antecubital fossa (24.5%, n = 90; 21.4%; n = 106). Polyurethane dressings were most used (67.1%; 2822), and many were not clean, dry and intact (17.1%; n = 715). Over 8% of PIVCs were idle, with the highest rates in North America (21.2%; n = 78). PIVC local complication risk factors included: >2 years age (odds ratio [OR] > 1.58; 1.2-2.1); ambulance/emergency insertion (OR 1.65; 1.2-2.3); upper arm/antecubital placement (OR 1.44; 1.1-2.0); poor dressing integrity (OR 5.4; 4.2-6.9); and 24-72 h dwell (OR > 1.9; 1.3-2.6)., Conclusions: There is global inconsistency in pediatric PIVC practice, which may be causing harm., Clinical Implications: Improvements in pediatric PIVC placement, dressings, and gauge selection are needed., Competing Interests: Declaration of competing interest Griffith University has received investigator-initiated grants and unrestricted donations from vascular access product manufacturers (3M, Adhezion, Angiodynamics, Becton Dickinson [BD]-Bard, BBraun, Centurion Medical Products-Medline), to support research led by AJU, unrelated to the current project. Griffith University has received investigator initiated research grants from vascular access product manufacturers (Adhezion, Angiodynamics, Becton Dickinson, Centurion Medical Products), to support research led by TK, unrelated to the current project. MT has no financial disclosures. Griffith University has received on GRB's behalf unrestricted investigator-initiated research grants (3M, Becton Dickinson, Smiths Medical) and consultancy payments (3M, Becton Dickinson, Medline, ResQDevices). Western Sydney and Griffith University has received on EA's behald unrestricted investigator-initiated research grants (from 3M, Becton Dickinson, BBraun, Cook Medical and Flo Medical). Griffith University has received investigator-initiated grants, or consultancy payments on behalf of CMR from vascular access product manufacturers (3M, Adhezion, Angiodynamics, BD-Bard, Baxter; BBraun, Centurion Medical Products, Medtronic, Smiths Medical unrelated to the current project., (Copyright © 2018 Elsevier Inc. All rights reserved.)

Background: Previously, the Dialysis Outcomes and Practice Patterns Study (DOPPS) has shown large international variations in vascular access practice. Greater mortality risks have been seen for hemodialysis (HD) patients dialyzing with a catheter or graft versus a native arteriovenous fistula (AVF). To further understand the relationship between vascular access practice and outcomes, we have applied practice-based analyses (using an instrumental variable approach) to decrease the treatment-by-indication bias of prior patient-level analyses., Study Design: A prospective observational study of HD practices., Setting & Participants: Data collected from 1996 to 2004 from 28,196 HD patients from more than 300 dialysis units participating in the DOPPS in 12 countries., Predictor or Factor: Patient-level or case-mix-adjusted facility-level vascular access use. OUTCOMES/MEASUREMENTS: Mortality and hospitalization risks., Results: After adjusting for demographics, comorbid conditions, and laboratory values, greater mortality risk was seen for patients using a catheter (relative risk, 1.32; 95% confidence interval, 1.22 to 1.42; P < 0.001) or graft (relative risk, 1.15; 95% confidence interval, 1.06 to 1.25; P < 0.001) versus an AVF. Every 20% greater case-mix-adjusted catheter use within a facility was associated with 20% greater mortality risk (versus facility AVF use, P < 0.001); and every 20% greater facility graft use was associated with 9% greater mortality risk (P < 0.001). Greater facility catheter and graft use were both associated with greater all-cause and infection-related hospitalization. Catheter and graft use were greater in the United States than in Japan and many European countries. More than half the 36% to 43% greater case-mix-adjusted mortality risk for HD patients in the United States versus the 5 European countries from the DOPPS I and II was attributable to differences in vascular access practice, even after adjusting for other HD practices. Vascular access practice differences accounted for nearly 30% of the greater US mortality compared with Japan., Limitations: Possible existence of unmeasured facility- and patient-level confounders that could impact the relationship of vascular access use with outcomes., Conclusions: Facility-based analyses diminish treatment-by-indication bias and suggest that less catheter and graft use improves patient survival.

Background: Arteriovenous fistulas (AVFs) and grafts (AVGs) have been associated with improved clinical outcomes in children and adults with end-stage renal disease (ESRD) on maintenance hemodialysis (HD) therapy, but use of vascular catheters is high. Identifying the reasons for the high prevalence of vascular catheters in children on HD therapy is necessary to assess whether targeted interventions may increase the prevalence of AVFs/AVGs., Study Design: Retrospective cohort study., Setting & Participants: Children younger than 18 years on HD therapy in the 2001 to 2003 ESRD Clinical Performance Measures (CPM) Projects followed up in the US Renal Data System transplant files through December 31, 2004., Predictor: Vascular access type and reasons for use of a vascular catheter., Outcomes & Measurements: Demographic/clinical characteristics, including the reason provided for use of a vascular catheter, and the association of type of vascular access and (1) patient size and (2) time to kidney transplantation., Results: Of 1,284 prevalent pediatric CPM patients examined, 529 (41%) had an AVF/AVG and 755 (59%) had a vascular catheter. Of 755 children with a catheter, "small body size" was a commonly listed reason (N = 142); 49% of these children weighed 20 kg or more. Of 53 patients with catheters described as having an "AVF/AVG maturing" and present in the consecutive ESRD CPM project year, 64% had a functioning AVF/AVG the following year. For those with "transplantation scheduled" listed as a reason for a vascular catheter (N = 83), 69% underwent transplantation within 1 year, and median time to transplantation was 115 days. Of all children with vascular catheters (N = 755), 32.2% underwent transplantation within 1 year, and median time to transplantation was 264 days compared with 21.7% and 347 days for those with AVFs/AVGs, respectively (N = 529). Of the 445 incident children in this cohort, 89% had a vascular catheter at dialysis therapy initiation., Limitations: Because of study design, only associations can be described., Conclusions: Vascular catheter use in children on HD therapy is high. This is partially explained by expeditious transplantation and technical barriers to AVF/AVG placement in small children; however, only one-third of patients with a vascular catheter underwent transplantation within 1 year. Interventions to decrease vascular catheter use in this population may be necessary.

Background: Starting hemodialysis therapy with an arteriovenous fistula (AVF) is associated with improved patient survival. Clinical audit showed that less than 50% of our patients started hemodialysis therapy with an AVF., Study Design: Quality improvement report, prospective before and after study., Setting & Participants: Tertiary referral hospital with 184 patients starting hemodialysis therapy in 2005 and 2006., Quality Improvement Plan: Situational analysis showed poor overall coordination of surgical waiting lists. Multifaceted intervention included vascular access nurse coordinator and an algorithm to prioritize surgery., Outcomes: Vascular access used at first hemodialysis treatment in patients with pre-end-stage renal disease in the 12 months before and after the intervention., Measurements: Proportions of patients starting hemodialysis therapy with an AVF., Results: Overall, 65% of patients started hemodialysis therapy with an AVF; 2%, with an arteriovenous graft; and 33%, with a catheter. The proportion of patients starting hemodialysis therapy with an AVF increased from 56% preimplementation to 75% postimplementation (P = 0.007). After adjustment for age, sex, late referral, cause of renal failure, and presentation type, patients starting dialysis therapy in the implementation phase were twice as likely to start treatment with an AVF (odds ratio, 2.85; P = 0.008). The total number of catheter-days in the implementation phase was half that of the preimplementation phase (2,833 v 4,685 days)., Limitations: Nonrandomized study., Conclusions: Implementation of a multifaceted intervention including a vascular access nurse and an algorithm to prioritize surgery significantly increased the proportion of patients starting dialysis therapy with an AVF by improving the overall coordination of the surgical waiting list.

The success of Fistula First nationwide has been accompanied by an unplanned increase in hemodialysis catheters. Complications related to prolonged hemodialysis catheter use include increased morbidity, mortality, and cost. We hypothesize that the national focus on increasing fistulas may have inadvertently diverted attention away from initiatives to decrease dependence on hemodialysis catheters. Based on a synthesis of guidelines, reviews, published evidence, and the authors' opinions, we propose that the national vascular access initiative be revised to have a dual goal of Fistula First and "Catheters Last." These goals are not mutually exclusive, but rather complementary. We recommend a systematic refocus on interventions that not only increase fistulas, but help avoid extended catheter use. Clearly, the ideal practice for hemodialysis vascular access remains early placement of fistulas with enough maturation time such that they can be used for initiating long-term hemodialysis therapy when the need arises. To effect this change, a reimbursement policy covering the costs associated with permanent access placement before the need for dialysis is essential. Individualized patient management strategies may consider such innovative approaches as initiating patients on peritoneal dialysis therapy or using nonautogenous grafts as bridge accesses in lieu of catheters. For patients who are dialyzing using catheters, immediate active planning for permanent access placement and removal of the catheter is necessary. In the same vein as Fistula First, the renal community should once again be galvanized in working together toward controlling the catheter epidemic in our dialysis population.

Background: Children with end-stage renal disease (ESRD) receiving hemodialysis may have their care overseen primarily by a pediatric nephrologist or internal medicine (IM) nephrologist., Methods: To examine specific clinical outcomes by nephrologist specialization, a cross-sectional analysis of demographic and clinical data collected in the 2002 ESRD Clinical Performance Measures Project was performed., Results: Of 653 pediatric patients meeting inclusion criteria, 27% were cared for by IM nephrologists, and 73%, by pediatric nephrologists. Pediatric nephrologists were significantly more likely than IM nephrologists to care for patients who were younger and of Hispanic ethnicity. Patients of pediatric compared with IM nephrologists also were more likely to have a congenital cause of ESRD, smaller body mass index, and longer time on dialysis therapy. No significant differences in achieving a mean Kt/V of 1.2 or greater or mean hemoglobin level of 11 g/dL or greater (> or =110 g/L) according to nephrologist specialization were observed. After adjustment for patient clinical characteristics, no significant difference in use of arteriovenous fistulae was observed. Patients cared for by pediatric nephrologists were less likely to achieve a mean serum albumin level of 4.0/3.7 g/dL (40/37 g/L; bromcresol green laboratory method/bromcresol purple laboratory method; adjusted odds ratio, 0.60; 95% confidence interval, 0.42 to 0.86). Patients cared for by pediatric nephrologists had significantly greater serum calcium levels, lower serum phosphate levels, and lower intact parathyroid hormone levels., Conclusion: Using adult-focused clinical care targets, care provided by pediatric and IM nephrologists to pediatric patients receiving hemodialysis in the United States is similar. However, differences exist, and the significance of these differences requires further study.

Background: Reducing the use of tunneled catheters in hemodialysis patients requires concerted efforts to convert them to a usable permanent vascular access. The goal of this study is to evaluate the reasons for tunneled catheter use in our prevalent hemodialysis population and the success in converting them to a permanent vascular access., Methods: We identified all catheter-dependent hemodialysis patients at our center on a single date. These patients were followed up prospectively during a 1-year period to evaluate access procedures and conversion to permanent access use., Results: Of 458 prevalent hemodialysis patients, 108 patients (23.6%) were dialyzing through cuffed tunneled catheters: 18.5% had no further options for creation of a permanent vascular access, 28.7% had an immature access, 43.5% had access placement pending, and 9.2% had repeatedly refused access surgery. For 78 catheter-dependent patients (excluding patients with no access options and those who refused permanent access surgery), the likelihood of using a permanent access was 53% by 6 months and 80% by 1 year. In patients with an immature access, 50% were using a permanent access at 3 months, and 80%, at 6 months. Of patients with access surgery pending, 45% had access surgery performed within 3 months, and 70%, at 6 months. Finally, of all patients, the likelihood of catheter-related bacteremia was 48% at 6 months. On multivariable analysis, only duration of catheter dependence predicted subsequent use of a permanent access (hazard ratio, 3.11; 95% confidence interval, 1.70 to 5.68; P = 0.0002) for catheter dependence less than versus greater than 6 months., Conclusion: Almost one quarter of our hemodialysis population is catheter dependent. Despite concerted efforts, there remain very long delays in achieving a usable permanent access, attributable to delays in both surgical access placement and access maturation. In the interim, this patient population developed a high frequency of catheter-related bacteremia.

Background: The delivery of long-term hemodialysis therapy in children is complicated by smaller vascular caliber and the potential lifelong requirement for hemodialysis access. Various factors have resulted in the increased use of cuffed central venous catheters (CVLs) in preference to autologous arteriovenous fistulae (AVFs) and arteriovenous synthetic grafts (AVGs). The aim of this study is to compare CVL, AVF, and AVG survival and determine factors affecting their survival., Methods: A 20-year retrospective study was undertaken of pediatric patients receiving long-term hemodialysis therapy. Age, height, weight, body mass index, and sex were noted at each procedure, in addition to the presence of hypoalbuminemia, underlying diagnosis, type and site of vascular access, and effect of previous access surgery. The grade of operator also was noted., Results: Three hundred four vascular access procedures were performed on 114 patients, with a median age at initial access formation of 12.0 years (range, 4 weeks to 21.9 years). The most common procedure was CVL insertion (182 procedures) and then AVF formation (107 procedures), with only 15 AVGs created. Median censored survival was 3.14 years (95% confidence interval, 1.22 to 5.06) for AVFs and 0.6 years (95% confidence interval, 0.20 to 1.00) for CVLs. Factors adversely affecting vascular access survival were younger age, trainee operator, presence of hypoalbuminemia, and type of access undertaken, with AVF better than CVL., Conclusion: This study shows increased survival of AVFs over CVLs and AVGs. Vascular access in children and adolescents may impact on future dialysis accessibility and should be undertaken by those most experienced in each technique.

National surveys have demonstrated that the US End Stage Renal Disease (ESRD) program has witnessed an increasing number of patients each and every year with a corresponding increase in cost. However, when compared to the data from the ESRD program of other countries, we find that these US patients have a low rate of autogenous arteriovenous access (AVA) placement and increased use of nonautogenous (or prosthetic) AVA. Some of the impetus for this can be attributed to (1) the lack of adequate or easily identifiable superficial veins in patients starting on hemodialysis with a history of multiple venipuncture or obesity, (2) earlier access rates of nonautogenous AVA as compared to autogenous AVA, (3) the relative ease of placement of nonautogenous AVA, and (4) a prior payment differential in favor of nonautogenous AVA placement that has since been abolished. However, by virtue of the increased number of procedures required to maintain nonautogenous AVA patency when compared to that of autogenous AVA patency, hemodialysis access failure has become the most frequent cause of hospitalization among ESRD patients. To further investigate this issue, the National Kidney Foundation Dialysis Outcome and Quality Initiative (DOQI) organized multidisciplinary work groups who reviewed 3325 articles concerning various issues of ESRD over a 2-year period. They suggested that autogenous AVA have the best longer-term patency rates and require the fewest interventions as compared to other access types. In order to improve overall patency rates and help contain angioaccess costs, these DOQI recommendations were published in 1997 and updated in 2000. While there is evidence that the guidelines are slowly being adopted, there remains much room for improvement in their implementation.

Background: We performed a prospective, randomized, controlled, multicenter study on the use of two double-bag disconnect systems: Stay-Safe (SS; Fresenius Deutschland GmbH2) and Ultrabag (UB; Baxter Healthcare, Deerfield, IL) to assess the ease of handling, peritonitis rate, exit-site infection rate, and clinical outcome., Methods: We enrolled 110 new continuous ambulatory peritoneal dialysis (CAPD) patients; 55 patients were randomized to SS treatment, and 55 patients, to UB treatment., Results: Patients using the UB and SS systems were followed up for 946 and 846 patient-months, respectively. There were 21 episodes of peritonitis in 18 patients in the UB group and 23 episodes in 18 patients in the SS group. No significant difference was observed in peritonitis rates between the two systems, which were 45 and 36.8 patient-months per episode for the UB and SS groups, respectively. At 12 months, 82.1% of patients in the UB group and 72.1% in the SS group were free of peritonitis; at 18 months, 71.1% and 62.2% were free of peritonitis for the UB and SS groups, respectively (P = 0.559). Gram-positive organisms accounted for 28.6% of infections in the UB group and 39.1% in the SS group. Exit-site infection rates were one episode per 21 patient-months versus 19.2 patient-months in the UB and SS groups, respectively (P = 0.743). Patients perceived SS as easier to handle in 4 of the 13 steps immediately post-CAPD training. However, there was no significant difference in rankings between the two systems after 1 month of adaptation. Median training periods were 4 and 5 days for the SS and UB groups, respectively (P = 0.640)., Conclusion: The two double-bag systems (UB and SS) have similar incidences of peritonitis and exit-site infection. Both systems showed comparably good clinical outcome. The SS system is easier to learn during the initial training period, but the difference is not significant after 1 month's adaptation., (Copyright 2002 by the National Kidney Foundation, Inc.)

Objective: To examine the effects of fluid intake and beverage type on stone formation in persons with spinal cord injury (SCI)., Design: A matched case-control study., Setting: A rehabilitation center within a university hospital., Patients: Forty-one patients with SCI who were diagnosed with urinary stones between 1992 and 1998 (stone cases) and 171 age- and duration-matched controls were interviewed by telephone., Interventions: Not applicable., Main Outcome Measures: Urinary stones., Results: Stone cases were more likely than controls to be white, to be current smokers, to be users of indwelling catheterization, and to have a lower body mass index (kg/m(2)), worse renal function, and higher urine specific gravity (P<.10). In a multivariable model that adjusted simultaneously for other possible risk factors, the greater consumption of juice (>207mL/d) was associated with a 70% decreased risk (odds ratio=0.3; 90% confidence interval, 0.1-1.0). An interesting, but not significant (P=.15), increased risk for coffee consumption was observed. There was no association for total fluid intake., Conclusion: Total fluid intake does not appear to determine stone occurrence; however, fluid type may influence stone formation in persons with SCI. Further study is required to verify these findings, thus possibly leading to an effective fluid regimen for stone prophylaxis., (Copyright 2002 by the American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation)

Recent clinical practice guidelines recommend the creation of an arteriovenous (AV) vascular access (ie, native fistula or synthetic graft) before the start of chronic hemodialysis therapy to prevent the need for complication-prone dialysis catheters. We report on the association of referral to a nephrologist with duration of dialysis-catheter use and type of vascular access used in the first 6 months of hemodialysis therapy. The study population is a representative cohort of 356 patients with questionnaire, laboratory, and medical record data collected as part of the Choices for Healthy Outcomes in Caring for End-Stage Renal Disease Center Study. Patients who reported being seen by a nephrologist at least 1 month before starting hemodialysis therapy (75%) were more likely than those referred later to use an AV access at initiation (39% versus 10%; P < 0.001) and 6 months after starting hemodialysis therapy (74% versus 56%; P < 0.01). Patients referred within 1 month of initiating hemodialysis therapy used a dialysis catheter for a median of 202 days compared with 64, 67, and 19 days for patients referred 1 to 4, 4 to 12, and greater than 12 months before initiating hemodialysis therapy, respectively (P trend < 0.001). Patients referred at least 4 months before initiating hemodialysis therapy were more likely than patients referred later to use an AV fistula, rather than a synthetic graft, as their first AV access (45% versus 31%; P < 0.01). These associations remained after adjustment for age, sex, race, marital status, education, insurance coverage, comorbid disease status, albumin level, body mass index, and underlying renal diagnosis. These data show that late referral to a nephrologist substantially increases the likelihood of dialysis-catheter use at the initiation of hemodialysis therapy and is associated with prolonged catheter use. Regardless of the time of referral, only a minority of patients used an AV access at the initiation of treatment, and greater than 25% had not used an AV access 6 months after initiation. Thus, further efforts to improve both referral patterns and preparation for dialysis after referral are needed.

The type of hemodialysis vascular access (catheter, fistula, graft) is an important determinant of patient morbidity and dialysis efficiency. The relative importance of patient versus provider factors in determining type of vascular access is unclear. We sought to develop a quality improvement tool that adjusts for differences in patient characteristics, thereby allowing examination of provider-related variability in types of vascular access used across facilities. We examined 15,339 patients from 216 chronic hemodialysis units in Indiana, Kentucky, Ohio, and Illinois and found that 20% of patients had catheters, 24% had fistulas, and 56% had grafts. Young, male, and white patients were more likely to have fistulas, whereas old, female, and black patients were more likely to have grafts. Diabetics were more likely to have catheters and less likely to have fistulas. New patients were more likely to have catheters and less likely to have grafts. A facility specific standardized catheter ratio (SCR), standardized fistula ratio (SFR), and standardized graft ratio (SGR) were calculated based on the actual number of patients with each type of vascular access divided by the expected number adjusted for patient characteristics. Facility SCRs ranged from 0.00 to 2.87. Of the 216 facilities, 38 (18%) had an SCR significantly less than 1.00, and 32 (15%) had an SCR significantly greater than 1.00. Similar variability was observed in SFRs and SGRs. In conclusion, the type of vascular access varies greatly across facilities. Use of standardized access ratios adjusted for patient characteristics may help providers examine processes of care that contribute to variability in access use. Analogous to the standardized mortality ratio, the SCR, SFR, and SGR should be effective quality improvement tools.