Significant reduction in central venous catheter-related bloodstream infections in children on HPN after starting treatment with taurolidine line lock

Pediatric Chronic Intestinal Failure: Something Moving?

Pediatric chronic intestinal failure (PIF) is a rare and heterogeneous condition characterized by the inability of the patient's intestine to adequately absorb the required fluids and/or nutrients for growth and homeostasis. As a result, patients will become dependent on home parenteral nutrition (HPN). A MEDLINE search was performed in May 2024 with keywords "intestinal failure", "parenteral nutrition" and "pediatric". Different underlying conditions which may result in PIF include short bowel syndrome, intestinal neuromuscular motility disorders and congenital enteropathies. Most common complications associated with HPN are catheter-related bloodstream infections, catheter-related thrombosis, intestinal failure-associated liver disease, small intestinal bacterial overgrowth, metabolic bone disease and renal impairment. Treatment for children with PIF has markedly improved with a great reduction in morbidity and mortality. Centralization of care in specialist centers and international collaboration between centers is paramount to further improve care for this vulnerable patient group. A recently promising medical therapy has become available for children with short bowel syndrome which includes glucagon-like peptide 2, a naturally occurring hormone which is known to delay gastric emptying and induce epithelial proliferation. Despite advances in curative and supportive treatment, further research is necessary to improve nutritional, pharmacological and surgical care and prevention of complications associated with parenteral nutrition use.

Risk factors for catheter-related bloodstream infections associated with home parental nutrition in children with intestinal failure: A prospective cohort study

BACKGROUND & AIMS

Catheter-related bloodstream infection (CRBSI) is the most common, potentially life-threatening complication of long-term parenteral nutrition (PN). We prospectively assessed the incidence and risk factors for CRBSI in children receiving long-term home PN (HPN) for intestinal failure (IF) in a single IF rehabilitation center.

METHODS

Data regarding episodes and potential risk factors for CRBSI in children on HPN were prospectively recorded.

RESULTS

Forty-one of 75 children were diagnosed with CRBSI. The overall CRBSI rate was 1.61 per 1000 catheter days. The indications for HPN were gastrointestinal motility disorders in 35%, short bowel syndrome (SBS) in 28% graft versus host disease (GvHD) post bone marrow transplant in 17%, congenital enteropathy in 15%, and severe neurodevelopmental impairment in 5%. Gastrointestinal motility disorders had significantly higher CRBSI rate compared to other groups (p < 0.0005; 2.74 in motility group vs 1.54 in GvHD group vs 0.52 in congenital enteropathies vs 0.36 in SBS group vs 0.67 in severe neurodevelopmental delay). Multivariate analysis revealed that enterocutaneous distal stoma (ileostomy or colostomy) (HR 3.35 [95% CI, 1.63-6.86]; p < 0.001), age <2 years (HR 0.28 [95% CI, 0.15-0.53]; p < 0.0001), male sex (HR 2.28 [95% CI, 1.51-3.43]; p < 0.0001), non-use of taurolidine citrate lock (HR 2.70 [95% CI, 1.72-4.11]; p < 0.0001) and gastrointestinal motility disorder (HR 3.02 [95% CI, 1.81-4.91]; p < 0.001) were independent risk factors for developing CRBSI.

CONCLUSIONS

Extra care in managing PN connections and disconnections should be taken in children with an underlying gastrointestinal motility disorder, distal enterocutaneous stoma, male sex and those aged <2 years since they are at a significantly higher risk of CRBSI. Early introduction of taurolidine lock should be considered.

Incidence of Central Line-Associated Bloodstream Infection in a Tertiary Care Hospital in Northern India: A Prospective Study

Background Central line-associated bloodstream infection is the most common hospital-acquired infection and is associated with high morbidity and mortality along with increased healthcare cost. However, studies on the incidence of nosocomial infections are very limited in India. Aims To determine the incidence of central line-associate bloodstream infection (CLABSI), microorganisms associated and their antimicrobial sensitivity profile in the medical ICU of a tertiary care hospital. Material and methods A total of 186 patients who were admitted to the medical ICU and had a non-tunneled central venous catheter (CVC) implanted at admission in the emergency department or in the medical ICU for longer than 48 hours were monitored. By examining the blood culture reports, the patients were monitored every day for the emergence of new-onset sepsis after 48 hours following CVC insertion. The data were evaluated statistically using Microsoft Excel and SPSS version 22.0 (IBM Corp., Armonk, NY, USA). Result Out of 186 catheterized patients, 37 developed CLABSI. The incidence of CLABSI was 9.3 per 1000 catheter days and 6.7 per 1000 inpatient days with a 0.7 device utilization ratio. The most common organism isolated was Acinetobacter species (22%) followed by K. pneumoniae (16%) and E. aerogenes (16%). The highest sensitivity was displayed by polymyxin B (100%) followed by tigecycline (85.48%) and minocycline (50.82%) in Gram-negative organisms. In Gram-positive organisms, the highest sensitivity was observed in S. aureus (100%) for vancomycin, linezolid and teicoplanin whereas Enterococcus species showed linezolid (100%) followed by vancomycin (93.75%) and teicoplanin (93.75%). Conclusion The prevention of CLABSI requires knowledge of the infection rates and of the sources, the pathogens involved as well as their antimicrobial profile. Due to rising antimicrobial resistance, surveillance programs are crucial in establishing the species distribution and resistance patterns of bacteria causing BSIs and thus providing the basis for appropriate empirical therapy.

Impact of lock solutions on the mechanical performance of polyurethane central venous catheters: A comparative study

The impact of ethanol locks on the mechanical performances of central venous catheters was compared to that of aqueous-based locks. Several mechanical tests were performed to evaluate catheter behavior: kinking radius measurements, burst pressure, and tensile tests. Different polyurethanes were studied to assess the impact of radio-opaque charge and polymer chemical composition on catheter behavior. The results were correlated to swelling measurements and calorimetric measurements. In particular, ethanol locks have a higher impact on long contact time than aqueous-based locks: stresses and strains at break were lower, and kinking radii were higher. However, for all catheters, the mechanical performances remain much higher than the normative requirements.

Systematic Review of Antimicrobial Lock Solutions for Prevention of Bacteremia in Pediatric Patients With Intestinal Failure

OBJECTIVES

The goal of this systematic review was to determine whether antimicrobial lock (AML) solutions prevent catheter-related bloodstream infections (CRBSI) in children with intestinal failure (IF).

METHODS

Electronic databases were searched: Ovid MEDLINE (1946-), Ovid Embase (1974-), Wiley Cochrane Library (inception-), and Web of Science Core Collection via Clarivate Analytics (1900-). Randomized and nonrandomized trials, case or cohort studies that studied any AML solution, and used comparator groups were included if they studied children with IF. A meta-analysis compared the rates of CRBSI with AML solutions versus controls, and a Boucher analysis was used to indirectly compare AML solutions.

RESULTS

Twenty-eight studies met eligibility criteria (1 open label and 27 observational studies). Quality was good (N = 13), fair (N = 9), and poor (N = 6). All but 4 studied ethanol and taurolidine. Of 15 ethanol studies, 11 reported a decrease and 3 reported a trend toward a decreased incidence of CRBSI compared to controls; 1 reported no difference. Of 9 taurolidine studies, 7 reported a decrease and 2 a trend toward decreased CRBSI rates. There was a decrease in CRBSI with ethanol versus control ( P = 0.008) and with taurolidine-citrate versus control ( P < 0.0005). Using Bucher indirect comparison of the pooled estimates from ethanol versus control to taurolidine versus control, the estimated difference was -0.99 (-4.125, 2.27; P = 0.55).

CONCLUSIONS

There were no randomized trials and over half of the 28 included studies were fair or poor quality. All but 1 reported at least a trend toward reduction in CRBSI. AML solutions appear to prevent CRBSI.

Meta-analysis of the efficacy of taurolidine in reducing catheter-related bloodstream infections for patients receiving parenteral nutrition

BACKGROUND

Parenteral nutrition administered via central venous catheter is an established treatment option for people with intestinal failure. A serious complication of central venous catheters is the high risk of catheter-related bloodstream infections (CRBSIs). Catheter-locking solutions are one strategy for CRBSI prevention, with the solution taurolidine showing beneficial effects. The aim of this meta-analysis was to identify and synthesize evidence to assess taurolidine efficacy against comparators for the prevention of CRBSI for people with intestinal failure receiving parenteral nutrition.

METHODS

Six health literature databases were searched for efficacy data of rate of CRBSI for taurolidine vs control among our study population; no study design limits were applied. Individual study data were presented for the number of CRBSIs and catheter days, and rate ratio. Overall data were synthesized as a pooled risk ratio, with subgroup analyses by study design, control type, and taurolidine solution.

RESULTS

Thirty-four studies were included in the final analysis. At the individual level, all studies showed superior efficacy of taurolidine vs control for prevention of CRBSIs. When the data were synthesized, the pooled risk ratio was 0.49 (95% CI, 0.46-0.53; P ≤ 0.0001), indicating a 51% decreased risk of CRBSI through the use of taurolidine. Subgroup analysis showed no difference depending on study design (P = 0.23) or control type (P = 0.37) and a significant difference for taurolidine type (P = 0.0005).

CONCLUSION

Taurolidine showed superior efficacy over controls regardless of study design or comparator group. The results show that taurolidine provides effective CRBSI reduction for people with intestinal failure receiving parenteral nutrition.

Sodium Bicarbonate Locks May Be a Safe and Effective Alternative in Pediatric Intestinal Failure: A Pilot Study

This was a retrospective study that compared outcomes in pediatric intestinal failure (IF) patients that were switched from ethanol lock therapy (ELT) to sodium bicarbonate lock therapy (SBLT). The primary outcome was rate of catheter-related blood stream infections (CRBSI). The secondary outcomes were number of hospitalizations, emergency room (ER) visits, central venous catheter (CVC)-related complications. In 4 patients, median rates of CRBSI were 2.77 (interquartile range [IQR] 0.6-5.6) on ELT versus 0 on SBLT per 1000 catheter days ( P = 0.17). The median rates of hospitalizations and ER visits for CVC-related complications were 6.1 (IQR 3.2-10.2) on ELT versus 0 on SBLT (IQR 0-0; P = 0.11) and 2.8 (IQR 2-3.6) on ELT versus 1.8 (IQR 0-3.7) on SBLT per 1000 catheter days ( P = 0.50), respectively. Rates of CVC-related complications were similar. No adverse events were reported. SBLT may be safe and effective for pediatric IF.

HPN Standard of Care and Long-Term Outcomes of CIF Pediatric Patients: Twenty-Eight Years' Experience in a Reference Center

Background and Aims

Chronic intestinal failure (CIF) therapy changed significantly in recent decades, and both survival and complication rates improved over time. International guidelines claim that early referral of long-term home parenteral nutrition (HPN) patients to an expert center with specific standards of care may positively affect long-term outcomes. Herein, we retrospectively analyse the long-term outcomes of a cohort of pediatric patients with CIF followed-up since our Pediatric Intestinal Failure Unit foundation, in 1989.

Methods

Data of the 120 children followed up at Pediatric Intestinal Failure Unit during the last 28 years were retrospectively collected. Patients' and HPN characteristics, as well as dependence, survival, and complication rates, were described.

Results

Incidence and prevalence of CIF increased during the study period particularly due to the increase of HPN for non-digestive disease (NDD) CIF (47.5% of the study sample). Catheter-related bloodstream infection (CRBSI) rate decreased over the study period: 0.33 episodes/1,000 catheters days before 2011 and 0.19 episodes/1,000 catheters days afterwards. Only 1 patient out of 12 died because of HPN complications. The survival rate of patients with PDD was 98.4% at 1 year from the beginning of HPN, 96.5% at 2 years, and 93.8% from the fifth year onwards. Concerning the dependence rate, 70.6% of patients were still on HPN 1 year after the start of HPN, 63.7% at 2 years, 52.4% at 5 years, and 40.8% from the 9th year onwards, with no significant difference according to the underlying intestinal pathology. The survival rate of NDD patients was 91.2% at 1 year from the beginning of HPN, 87.4% at 2 years, and 81.9% from the third year onwards. For what concerns the enteral autonomy, it was regained by 56.7% 1 year after the start of HPN, 74.5% at 2 years, and 95.0% in the 5th year.

Conclusions

Our data confirmed the importance of appropriate standards of care and suggest that applying a specific set of standards and protocols may further improve patients' outcomes and survival. Indeed, both primary and non-digestive diseases HPN showed good outcomes.

Mechanical Complications in Central Lines Using Taurolidine Versus Ethanol Lock Therapy in Children With Intestinal Failure

OBJECTIVES

Ethanol lock therapy (ELT) is effective in reducing rates of catheter-related-bloodstream infections (CRBSI) in the pediatric intestinal failure (IF) population; however, ELT may increase the risk of line occlusion and breakage, significantly impacting preservation of vascular access. During a period of ethanol shortage, Health Canada temporarily approved the use of taurolidine lock therapy (TLT) in pediatric iF patients previously utilizing ELT. This provided a unique opportunity to directly compare rates of central venous catheter (CVC) complications, including CRBSi, breaks, occlusions, repairs and replacements in patients who utilized both ELT and TLT.

METHODS

A retrospective study of pediatric IF patients managed by three Western Canadian intestinal rehabilitation programs was performed. Event rates in patients who used both ELT and TLT during the study period were compared using Poisson regression analysis.

RESULTS

In 13 patients with 10,187 catheter days (CDs), TLT (vs ELT) had lower rates of CVC breaks (1.11 vs 5.19/1000 CDs, P < 0.001), occlusions (0.83 vs 4.06/1000 CDs, P  = 0.01) and repairs (1.94 vs 5.64/1000 CDs, P  = 0.01). There was no difference in CRBSI rates (0.83 vs 2.03/1000 CDs, P  = 0.25) or rates of CVC replacements due to mechanical events (0.28 vs 1.81/1000 CDs, P  = 0.08).

CONCLUSIONS

Although there was no difference in CRBSI rates, TLT was associated with lower rates of mechanical complications compared to ELT in this study. Taurolidine may be a suitable alternative to ethanol in preventing CRBSI and may be associated with improved preservation of central lines in children with IF.

Difficult Vascular Access in Children with Short Bowel Syndrome: What to Do Next?

Short Bowel Syndrome and intestinal failure are chronic and severe conditions that may require life-long parenteral nutrition in children. Survival of these children rely on the correct functioning of central venous catheters; therefore, careful management, prevention, and treatment of complications is of paramount importance. Despite a growing awareness of preserving the vascular real estate, a certain number of patients still experience a progressive and life-threatening exhaustion of vascular access. We searched the literature to highlight the current management of children with vascular exhaustion, specifically focusing on vascular access salvage strategies and last-resource alternative routes to central veins. Given the paucity of data, results are reported in the form of a narrative review.

Venous Thromboembolic Complications in Pediatric Gastrointestinal Diseases: Inflammatory Bowel Disease and Intestinal Failure

In children with gastrointestinal disorders such as inflammatory bowel disease (IBD) and intestinal failure (IF), the risk of venous thromboembolism (VTE) is increased. VTE may lead to pulmonary embolism, sepsis and central line infection, stroke and post-thrombotic syndrome. The purpose of this review is to summarize current knowledge and recent advances around VTE management in pediatric gastroenterology with a focus on IBD and IF. The VTE incidence in children with IBD is reported to be around 4-30 per 10,000 patient-years, with higher incidences for hospitalized children. While in general, IF is less common than IBD, the VTE incidence in children with IF is around 750 per 10,000 patient-years. The most common risk factors for development of VTE involve deviations leading to Virchow's triad (endothelial damage, stasis, and hypercoagulability) and include active inflammation, particularly with colonic involvement, presence of a central venous catheter, underlying thrombophilia, reduced mobility, surgery, and hospitalization. Classes of anticoagulants used for treatment of VTE are low molecular weight heparins and vitamin K antagonists. However, the use of direct oral anticoagulants for treatment or prevention of VTE has not been studied in this pediatric population yet. Pediatric gastroenterologists apply different VTE prevention and treatment strategies due to lack of literature and lack of consensus. We discuss the role of primary and secondary prophylactic use of anticoagulants, and provide tools and recommendations for screening, prevention and management for the specific pediatric populations.

Impact of Healthcare-Associated Infections Connected to Medical Devices-An Update

Healthcare-associated infections (HAIs) are caused by nosocomial pathogens. HAIs have an immense impact not only on developing countries but also on highly developed parts of world. They are predominantly device-associated infections that are caused by the planktonic form of microorganisms as well as those organized in biofilms. This review elucidates the impact of HAIs, focusing on device-associated infections such as central line-associated bloodstream infection including catheter infection, catheter-associated urinary tract infection, ventilator-associated pneumonia, and surgical site infections. The most relevant microorganisms are mentioned in terms of their frequency of infection on medical devices. Standard care bundles, conventional therapy, and novel approaches against device-associated infections are briefly mentioned as well. This review concisely summarizes relevant and up-to-date information on HAIs and HAI-associated microorganisms and also provides a description of several useful approaches for tackling HAIs.

The efficacy of taurolidine containing lock solutions for the prevention of central-venous-catheter-related bloodstream infections: a systematic review and meta-analysis

The incidence of central venous catheter (CVC)-related bloodstream infections is high in patients requiring a long-term CVC. Therefore, infection prevention is of the utmost importance. The aim of this study was to provide an updated overview of randomized controlled trials (RCTs) comparing the efficacy of taurolidine containing lock solutions (TL) to other lock solutions for the prevention of CVC-related bloodstream infections in all patient populations. On 15^th February 2021, PubMed, Embase and The Cochrane Library were searched for RCTs comparing the efficacy of TLs for the prevention of CVC-related bloodstream infections with other lock solutions. Exclusion criteria were non-RCTs, studies describing <10 patients and studies using TLs as treatment. Risk of bias was evaluated using the Cochrane Risk of Bias 2 tool. A random effects model was used to pool individual study incidence rate ratios (IRRs). Subgroup analyses were performed based on the following factors: CVC indication, comparator lock and bacterial isolates cultured. A total of 14 articles were included in the qualitative synthesis describing 1219 haemodialysis, total parenteral nutrition and oncology patients. The pooled IRR estimated for all patient groups together (nine studies; 918 patients) was 0.30 (95% confidence interval 0.19-0.46), favouring the TLs. Adverse events (10 studies; 867 patients) were mild and scarce. The quality of the evidence was limited due to a high risk of bias and indirectness of evidence. The use of TLs might be promising for the prevention of CVC-related bloodstream infections. Large-scale RCTs are needed to draw firm conclusions on the efficacy of TLs.

Pediatric Home Parenteral Nutrition in France: A six years national survey

BACKGROUND AND AIMS

Home Parenteral Nutrition (HPN) is the cornerstone management for children suffering from chronic intestinal failure (CIF). In France, HPN is organized from a network of 7 certified centers located in University Hospitals spread across the national territory. This study aims to review the data involving children on HPN over a 6-years period in France to outline the global and continuous improvement in care.

PATIENTS AND METHODS

This cross-sectional study included all children enrolled in any of the 7 French HPN certified centers from January 1st, 2014 to December 31st, 2019. Data was recorded from annual databases provided by each center regarding: age at inclusion, indication and duration of HPN, type of intravenous lipid emulsion (ILE), outcome [PN weaning off, transfer to adult center, death, intestinal transplantation (ITx)], rate of catheter-related bloodstream infections (CRSBIs) for 1000 days of HPN, Taurolidine lock procedure (TLP) use and prevalence of cholestasis defined as conjugated bilirubin ≥20 μmol/l.

RESULTS

The number of patients increased by 43.6% from 268 in 2014 to 385 in 2019. According to the year of follow up, the indications for HPN were short bowel syndrome (SBS) (42.3-46.6%), congenital enteropathies (CE) (18.5-22.8%), chronic intestinal pseudo-obstruction syndrome (CIPOS) (13.0-16.3%), long segment Hirschsprung's disease (LSHD) (9.7-13.3%), Crohn's disease (CD) (1.6-2.6%) and other non-primary digestive diseases (NPDD) such as immune deficiency, cancer or metabolic disease (4.0-9.2%). The median age at discharge on HPN decreased from 11.7 months in 2014 to 8.3 months in 2019 (p < .001). By December 31st, 2019, 44.8% of children had left the HPN program after a median duration ranging between 39.9 and 66.4 months. Among these patients, 192 (74.2%) were weaned off PN (94.7% SBS), 41 (15.8%) were transferred to adult centers for CIPOS (42%), SBS (31%) or CE (27%), 21 died (8.1%) - mostly in relation to cancer or immune deficiency - and 5 were transplanted (1.9%): 4 underwent combined liver-intestine transplantation for LSHD (n = 2), SBS, CE and one multivisceral Tx for CIPOS. The use of a composite fish-oil based ILE increased from 67.4% in 2014 to 88.3% in 2019 (p < 0.001). CRBSIs dropped from 1.04 CRSBIs per 1000 days HPN in 2014 to 0.61 in 2019 (p < 0.001) while meantime, the percentage of children receiving TLP increased from 29.4% to 63.0% (p < 0.001). The prevalence of cholestasis (conjugated bilirubin ≥ 20 μmol/l) was low and stable between 4.1 and 5.9% of children during the study period.

CONCLUSION

In France, the number of children enrolled in a HPN program continuously increased over a 6 years period. SBS is the leading cause of CIF requiring HPN. The rate of CRBSIs dropped dramatically as the use of TLP increased. Mortality rate was low and mainly in relation to the underlying disease (cancer, immune deficiency). Cholestasis and intestinal Tx remained very rare.

Management of Central Venous Access in Children With Intestinal Failure: A Position Paper From the NASPGHAN Intestinal Rehabilitation Special Interest Group

ABSTRACT

Intestinal failure requires the placement and maintenance of a long-term central venous catheter for the provision of fluids and/or nutrients. Complications associated with this access contribute to significant morbidity and mortality, while the loss of access is an increasingly common reason for intestinal transplant referral. As more emphasis has been placed on the prevention of central line-associated bloodstream infections and new technologies have developed, care for central lines has improved; however, because care has evolved independently in local centers, care of central venous access varies significantly in this vulnerable population. The present position paper from the Intestinal Failure Special Interest Group of the North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition (NASPGHAN) reviews current evidence and provides recommendations for central line management in children with intestinal failure.

Reaching consensus on a home infusion central line-associated bloodstream infection surveillance definition via a modified Delphi approach

BACKGROUND

A consensus on a central line-associated bloodstream infection (CLABSI) surveillance definition in home infusion is needed to standardize measurement and benchmark CLABSI to provide data to drive improvement initiatives METHODS: Experts across fields including home infusion therapy, infectious diseases, and healthcare epidemiology convened to perform a 3-step modified Delphi approach to obtain input and achieve consensus on a candidate home infusion CLABSI definition.

RESULTS

The numerator criterion was identified by participants as involving one of the 2 following: (1) recognized pathogen isolated from blood culture and pathogen is not related to infection at another site, or (2) one of the following signs or symptoms: fever of 38°C (100.4°F), chills, or hypotension (systolic blood pressure ≤90 mm Hg), and one of the 2 following: (A) common skin contaminant isolated from 2 blood cultures drawn on separate occasions and organism is not related to infection at another site, or (B) common skin contaminant isolated from blood culture from patient with intravascular access device and provider institutes appropriate antimicrobial therapy. The criteria for a denominator included days from the day of admission with a central venous catheter to day of removal of central venous catheter. In addition, 11 inclusion criteria and 4 exclusion criteria were included.

DISCUSSION

Home infusion therapy and healthcare epidemiology experts developed candidate criteria for a home infusion CLABSI surveillance definition.

CONCLUSIONS

Home care and home infusion agencies can use this definition to monitor their own CLABSI rates and implement preventative strategies.

Use of Catheter Lock Solutions in Patients Receiving Home Parenteral Nutrition: A Systematic Review and Individual-Patient Data Meta-Analysis

BACKGROUND

Use of catheter lock solutions (CLSs) as a strategy to prevent catheter-related bloodstream infections (CRBSIs) has been evaluated in recent clinical trials. Our aim was to identify the most effective CLS formulation in patients receiving home parenteral nutrition (HPN).

METHODS

We conducted a systematic review and individual-patient data meta-analysis (IPDMA). Prospective randomized clinical trials in adult HPN patients using CLS were identified from PubMed, EMBASE, Web of Science, CINAHL, Cochrane library, and ClinicalTrials.gov. Primary outcome was the number of CRBSIs per 1000 catheter days for each CLS. Other outcomes included time to CRBSI and identification of patients with a higher risk for CRBSIs.

RESULTS

In total, 1107 studies were screened for eligibility, of which three studies comprising 162 HPN patients and 45,695 catheter days were included in the IPDMA. CRBSI rates were significantly decreased in patients using taurolidine (rate 0.13; 95% confidence interval [CI], 0.05-0.32) when compared with saline (rate 0.74; 95% CI, 0.31-1.74; P = .002) or heparin (rate 2.01; 95% CI, 1.03-3.91; P < .001). The cumulative proportion of CRBSI-free patients using taurolidine, saline, and heparin after 1 year was 88%, 56%, and 14%, respectively. Three risk factors for CRBSIs were identified: type of CLS, intestinal dysmotility as underlying condition, and use of central venous catheters.

CONCLUSIONS

Taurolidine was the most effective CLS formulation in HPN patients for the prevention of CRBSIs. We suggest discussing with patients the benefits and risks when starting taurolidine, especially in patients who are considered to have a higher risk for CRBSIs.

Central Catheter-related Bloodstream Infection Rates in Children on Home Parenteral Nutrition

Reliable venous access is prerequisite for patients receiving long-term parenteral nutrition (PN). Central venous catheters are, however, an important risk factor for the development of potentially lethal complications, including catheter-related bloodstream infection (CRBSI). We have retrospectively assessed the incidence of CRBSIs in children on long-term PN who were treated at the Children's Hospital Zagreb from January 2011 until January 2019 and the cost effectiveness of the use of taurolidine line locks in children at home PN (HPN). During this period 48 children received long-term PN and 24 children were discharged to HPN. The rate of CRBSI 1.15/1000 catheter days in total; 2.35/1000 days in the hospital; and 0.48/1000 days at home. If taurolidine line lock was used every day of PN for children on HPN total costs would exceed existing CRBSI treatment costs >5 times.

Taurolidine-citrate lock solution for the prevention of central line-associated bloodstream infection in paediatric haematology-oncology and gastrointestinal failure patients with high baseline central-line associated bloodstream infection rates

AIM

Central line-associated bloodstream infection associated bloodstream infection (CLABSI) is a serious complication of patients on central venous catheters (CVC). Taurolidine-citrate solution (TCS) is a catheter-lock solution with broad-spectrum antimicrobial action. This study's aim was to evaluate the efficacy of TCS in reducing CLABSI rates in paediatric haematology-oncology (H/O) and gastrointestinal (GI) patients with long-term CVC.

METHODS

This was an open-label trial of H/O and GI inpatients with the following inclusion criteria: <17 years old, more than or equal to one previous CLABSI and a minimum TCS dwell time of ≥8 h. CLABSI per 1000 catheter-days was calculated from each patient's first CVC insertion till 14 December 2017 or until TCS discontinuation.

RESULTS

Thirty-three patients were recruited with a median age of 3.5 years; H/O and GI constituted 60.6 and 39.4% respectively. CVC types were Hickman line (45.5%), implantable port (24.2%) and peripherally inserted central catheter (30.3%). Mean pre- and post-TCS CLABSI rates per 1000 catheter-days were 14.44 and 2.45 (P < 0.001) for all patients; 16.55 and 2.81 for H/O patients; and 11.21 and 1.90 for GI patients, respectively. Pre- and post-TCS rate ratio was 0.20, 0.10 and 0.30 for all, H/O and GI patients, respectively (P < 0.001). TCS also led to a reduction in CVC removal from 66.7 to 9.09% (P < 0.001).

CONCLUSIONS

TCS usage was highly successful in CLABSI reduction by 80% in all patients, 90% in H/O and 70% in GI patients. In patients with high baseline CLABSI rates, TCS is an effective catheter-lock therapy to reduce CLABSI rates in paediatric patients.

Predictors of Intestinal Adaptation in Children

In children, short-bowel syndrome (SBS) accounts for two-thirds of the cases of intestinal failure, and motility disorders and congenital mucosal diarrheal disorders account for the remaining one-third. Children with SBS are supported primarily by parenteral nutrition, which is the single-most important therapy contributing to their improved prognosis. More than 90% of children with SBS who are cared for at experienced intestinal rehabilitation programs survive, and roughly 60% to 70% undergo intestinal adaptation and achieve full enteral autonomy. This article focuses on the predictors of pediatric intestinal adaptation and discusses the pathophysiology and clinical management of children with SBS.

Epidemiology of Infectious and Noninfectious Catheter Complications in Patients Receiving Home Parenteral Nutrition: A Systematic Review and Meta-Analysis

Patients receiving parenteral nutrition (PN) as their primary source of nutrition are at high risk for both infectious and noninfectious catheter complications (catheter-related infections, catheter occlusion, and venous thrombosis). The aim of this review was to synthesize and evaluate what is known about catheter complications and prevention strategies in the PN population. Three electronic databases (Medline, Embase, and CINAHL) were screened for studies published between January 2012 and February 2019 regarding infectious and noninfectious catheter complications in patients receiving PN. Rates of infectious and noninfectious catheter complications, prevalence of causative pathogens, potential risk factors, and prevention strategies via the use of antimicrobial lock therapy (ALT) were assessed. Fifty-three catheter complication studies and 12 ALT studies were included. Studies were grouped by definition of complication: catheter-related bloodstream infections (CRBSI) or central line-associated bloodstream infections (CLABSI). Random effects summary rates per 1000 catheter days were 0.85 CRBSI episodes (95% CI 0.27-2.64) and 1.65 CLABSI episodes (95% CI 1.09-2.48). Use of taurolidine or ethanol ALT was efficacious in reducing infectious catheter complications; however, several studies had concerns for adverse mechanical complications. Potential risk factors for catheter complications were highly varied and often contradictory between studies. The rates of catheter complications were higher among catheterized patients receiving PN compared with nationally reported rates of complications in all catheterized patients. Risk factors for catheter complications need to be better understood for targeted prophylactic use of ALT. Future studies are warranted; however, they should be conducted using more standardized definitions and criteria.

TRAINING OF CHILDREN'S AND ADOLESCENTS' FAMILY MEMBERS IN HOME PARENTERAL NUTRITION CARE

Objective:

To report the experience of the training in home parenteral nutrition (PN) directed to family members of children and adolescents participating in a multidisciplinary intestinal rehabilitation program of a tertiary public hospital.

Methods:

Cross-sectional descriptive study with family caregivers of patients from the Intestinal Rehabilitation Program of Hospital de Clínicas de Porto Alegre, RS, Brazil, from July/2014 to January/2017. Inclusion criteria: family members of children aged 30 days to 17 years and estimated PN use ≥8 weeks; and family members motivated to care for the child. The training covered: hand washing and disinfection; infusion pump handling; and central venous catheter (CVC) and PN care. Outcomes assessed: catheter-related bloodstream infection (CRBSI) rate, accidental CVC exit, end of PN infusion with more than 60minutes of delay or advance compared to the time predicted, mechanical obstruction, bleeding in the CVC insertion site, and death.

Results:

Twenty-seven family members of 17 children were trained. Their median age was 28 (18-60) years, and 63% were mothers. The mean CRBSI rate was 1.7/1,000 days of CVC use, and 29.4% of patients had at least one episode of accidental CVC exit. There were no complications related to PN infusion, bleeding, or death.

Conclusions:

The training of family caregivers allowed the safe implementation of home PN, with the active participation of families, making the procedure feasible in the public health system in Brazil.

Central line-associated bloodstream infection among children with biliary atresia listed for liver transplantation

BACKGROUND

Pre-transplant nutrition is a key driver of outcomes following liver transplantation in children. Patients with biliary atresia (BA) may have difficulty achieving satisfactory weight gain with enteral nutrition alone, and parenteral nutrition (PN) may be indicated. While PN has been shown to improve anthropometric parameters of children with BA listed for liver transplantation, less is known about the risks, particularly infectious, associated with this therapy among this specific group of patients.

AIM

To describe the incidence, microbiology, and risk factors of central line-associated bloodstream infection (CLABSI) among children with BA listed for liver transplantation.

METHODS

Retrospective review of children aged ≤ 2-years of age with BA who were listed for primary liver transplantation at Texas Children’s Hospital from 2008 through 2015 (n = 96). Patients with a central line for administration of PN (n = 63) were identified and details of each CLABSI event were abstracted. We compared the group of patients who experienced CLABSI to the group who did not, to determine whether demographic, clinical, or laboratory factors correlated with development of CLABSI.

RESULTS

Nineteen of 63 patients (30%, 95%CI: 19, 43) experienced 29 episodes of CLABSI during 4800 line days (6.04 CLABSI per 1000 line days). CLABSI was predominantly associated with Gram-negative organisms (14/29 episodes, 48%) including Klebsiella spp., Enterobacter spp., and Escherichia coli. The sole polymicrobial infection grew Enterobacter cloacae and Klebsiella pneumoniae. Gram-positive organisms (all Staphylococcus spp.) and fungus (all Candida spp.) comprised 9/29 (31%) and 6/29 (21%) episodes, respectively. No demographic, clinical, or laboratory factors were significantly associated with an increased risk for the first CLABSI event in Cox proportional hazards regression analysis

CONCLUSION

There is substantial risk for CLABSI among children with BA listed for liver transplantation. No clinical, demographic, or laboratory factor we tested emerged as an independent predictor of CLABSI. While our data did not show an impact of CLABSI on the short-term clinical outcome, it would seem prudent to implement CLABSI reduction strategies in this population to the extent that each CLABSI event represents potentially preventable hospitalization, unnecessary healthcare dollar expenditures, and may exact an opportunity cost, in terms of missed allograft offers.

Taurolidine-Citrate Line Locks Prevent Recurrent Central Line-Associated Bloodstream Infection in Pediatric Patients

This study describes a successful, targeted intervention in central venous access device routine care to decrease central line-associated bloodstream infection. Taurolidine-citrate locks significantly reduced the rate of central line-associated bloodstream infection, particularly Gram-negative organisms without adverse events.

Intestinal failure: the evolving demographic and patient outcomes on home parenteral nutrition

AIM

We performed this study to examine and understand the evolving demographics and changing outcomes of intestinal failure (IF) and its implications for healthcare delivery.

METHOD

We conducted a retrospective analysis of outcome data of children on home parenteral nutrition (HPN), over a 15-year period.

RESULTS

A total of 31 patients received HPN: 15 for short bowel syndrome (SBS), eight neuromuscular disease (NMD) and eight for other causes. The HPN prevalence increased from 1.54 per million children in 2000 to 21.5 in 2016. The outcomes over last 5 years were better than those of previous 10 years. The rate of catheter-related bloodstream infection (CRBSI) had fallen from 4 to 1.3 and IF liver disease (IFALD) from 20% to 7.7%. The aetiology changed over years from SBS being the main cause to NMD contributing 43% to the total in 2016. This was especially relevant as NMD was associated with greater numbers of IFALD (38% vs 6.7%), CRBSI (1.51 vs 0.64/1000 PN days) and mortality.

CONCLUSION

The outcome of long-term parenteral nutrition (PN) has improved. The increasing number of patients with NMD, coupled with their higher burden of care, results in an increasing health care burden, and the planning of intestinal rehabilitation services needs to reflect this.

Central Line in Long-term Parenteral Nutrition in Children: A European Survey

BACKGROUND AND AIMS

The guidelines for the insertion and maintenance of the central venous catheter (CVC) in children on long-term parenteral nutrition (PN) were published 12 years ago and studies evaluating the outcomes are limited. Therefore, the aim of the present study was to perform a survey about criteria for CVC insertion and maintenance in intestinal failure/rehabilitation centers treating children on home PN.

METHODS

An online cross-sectional survey based on previous European Society of Paediatric Gastroenterology, Hepatology and Nutrition PN guidelines was distributed electronically to the members of the European Society of Paediatric Gastroenterology, Hepatology and Nutrition networking group, Network for Intestinal Failure and Transplantation in Europe and tertiary pediatric gastroenterology centers in Europe.

RESULTS

Overall, 55 responses from 49 centers in 18 European countries and Israel were collected. The majority of respondents were from the United Kingdom (10, 19%), followed by Germany (7, 13%) and France (6, 11%). Eleven centers (21%) cared for >30 patients, 8 (15%) centers between 20 and 30 patients, 18 (34%) centers between 10 and 20 patients, and 16 (30%) <10 patients on home PN. There was a high variability in the majority of answers to the cross-sectional survey.

CONCLUSIONS

CVC insertion and maintenance in children on home PN varies largely amongst centers in Europe. These differences could be at least partially explained by the lack of updated guidelines and limited evidence. There is an urgent need for collaborative research to make recommendations about the best possible practice.

Randomised clinical trial: 2% taurolidine versus 0.9% saline locking in patients on home parenteral nutrition

BACKGROUND

The catheter lock solutions 2% taurolidine and 0.9% saline are both used to prevent catheter-related bloodstream infections (CRBSIs) in home parenteral nutrition patients.

AIMS

To compare the effectiveness and safety of taurolidine and saline.

METHODS

This multicentre double-blinded trial randomly assigned home parenteral nutrition patients to use either 2% taurolidine or 0.9% saline for 1 year. Patients were stratified in a new catheter group and a pre-existing catheter group. Primary outcome was the rate of CRBSIs/1000 catheter days in the new catheter group and pre-existing catheter group, separately.

RESULTS

We randomised 105 patients, of which 102 were analysed as modified intention-to-treat population. In the new catheter group, rates of CRBSIs/1000 catheter days were 0.29 and 1.49 in the taurolidine and saline arm respectively (relative risk, 0.20; 95% CI, 0.04-0.71; P = 0.009). In the pre-existing catheter group, rates of CRBSIs/1000 catheter days were 0.39 and 1.32 in the taurolidine and saline arm respectively (relative risk, 0.30; 95% CI, 0.03-1.82; P = 0.25). Excluding one outlier patient in the taurolidine arm, mean costs per patient were $1865 for taurolidine and $4454 for saline (P = 0.03). Drug-related adverse events were rare and generally mild.

CONCLUSIONS

In the new catheter group, taurolidine showed a clear decrease in CRBSI rate. In the pre-existing catheter group, no superiority of taurolidine could be demonstrated, most likely due to underpowering. Overall, taurolidine reduced the risk for CRBSIs by more than four times. Given its favourable safety and cost profile, taurolidine locking should be considered as an additional strategy to prevent CRBSIs.

TRIAL REGISTRATION

Clinicaltrials.gov, identifier: NCT01826526.

Rate of Catheter-Related Bloodstream Infections Between Tunneled Central Venous Catheters Versus Peripherally Inserted Central Catheters in Adult Home Parenteral Nutrition: A Meta-analysis

BACKGROUND

Tunneled central venous catheters (TCVCs) and peripherally inserted central catheters (PICC) are often used for the provision of home parenteral nutrition (HPN). There is no formal comparison being made to study the rate of catheter-related bloodstream infection (CRBSI) between TCVCs and PICC in HPN to recommend the use of 1 over the other.

METHODS

An online MEDLINE, PubMed, and Scopus search was conducted. Studies reporting the rate of CRBSI in HPN patients were included. DerSimonian and Laird random effects meta-analyses were used to analyze comparative studies, whereas Begg and Pilote's random effects meta-analysis was used to pool and analyze single-arm studies.

RESULTS

Seventeen studies (12 single-arm studies and 5 comparative studies) were included for analysis. Meta-analysis of comparative studies showed that PICC use was associated with a significantly lower rate of CRBSI (relative risk (RR) 0.40, 95% CI 0.19-0.83), whereas meta-analysis of single-arm studies revealed that the relative risk for CRBSI was not statistically significantly different from unity.

CONCLUSION

TCVC is more commonly used in long-term HPN. Our analysis of comparative studies showed a lower rate of CRBSI in HPN patients using PICC compared with TCVC; however, analysis of single-arm studies showed that the rate of CRBSI was comparable in PICC and TCVC use. The decision to which type of catheter is most suited for HPN patients should hence be based on the duration of treatment, level of care, patients' dexterity, as well patients' underlying comorbidities that may potentially contribute to other catheter-related complications.

Prevention and Treatment of Intestinal Failure-Associated Liver Disease in Children

Intestinal failure-associated liver disease (IFALD) is a threatening complication for children on long-term parenteral nutrition because of intestinal failure. When progressive and intractable, it may jeopardize intestinal rehabilitation and lead to combined liver and intestinal transplantation. The institution of dedicated intestinal failure centers has dramatically decreased the incidence of such complication. IFALD may rapidly fade away if very early management aimed at preventing progression to end-stage liver disease is provided. In this review, we address the etiology and risk factors of IFALD in order to introduce pillars of prevention (nutritional management and catheter-related infections control). The latest evidence of therapeutic strategies, such as medical and surgical treatments, is also discussed.

Infection of totally implantable venous access devices: A review of the literature

Totally implantable venous access devices, or ports, are essential in the therapeutic management of patients who require long-term intermittent intravenous therapy. Totally implantable venous access devices guarantee safe infusion of chemotherapy, blood transfusion, parenteral nutrition, as well as repeated blood samples. Minimizing the need for frequent vascular access, totally implantable venous access devices also improve the patient's quality of life. Nonetheless, totally implantable venous access devices are not free from complications. Among those, infection is the most relevant, affecting patients' morbidity and mortality-both in the hospital or outpatient setting-and increasing healthcare costs. Knowledge of pathogenesis and risk factors of totally implantable venous access device-related infections is crucial to prevent this condition by adopting proper insertion bundles and maintenance bundles based on the best available evidence. Early diagnosis and prompt treatment of infection are of paramount importance. As a totally implantable venous access device-related infection occurs, device removal or a conservative approach should be chosen in treating this complication. For both prevention and therapy, antimicrobial lock is a major matter of controversy and a promising field for future clinical studies. This article reviews current evidences in terms of epidemiology, pathogenesis and risk factors, diagnosis, prevention, and treatment of totally implantable venous access device-related infections.

Long term outcomes of intestinal rehabilitation in children with neonatal very short bowel syndrome: Parenteral nutrition or intestinal transplantation

BACKGROUND & AIMS

Intestinal rehabilitation is the preferred treatment for children with short bowel syndrome (SBS) whatever the residual bowel length, and depends on the accurate management of long-term parenteral nutrition (PN). If nutritional failure develops, intestinal transplantation (ITx) should be discussed and may be life-saving. This study aimed to evaluate survival, PN dependency and nutritional status in children with neonatal very SBS on PN or after ITx, in order to define indications and timing of both treatments.

PATIENTS AND METHODS

This retrospective cross-sectional study enrolled 36 children with very SBS (<40 cm) who entered our intestinal rehabilitation program from 1987 to 2007.

RESULTS

All the children on long-term PN (n = 16) survived with a follow-up of 17 years (9-20). Six of them were eventually weaned off PN. Twenty children underwent ITx: eight children died (40%) 29 months (0-127) after Tx. The others 12 patients were weaned off PN 73 days (13-330) after Tx. Follow-up after transplantation was 14 years (6-28). Seven out of 8 (88%) patients with a history of gastroschisis required ITx. Patients who required ITx had longer stoma duration.

CONCLUSION

Survival rate of children with very short bowel was excellent if no life-threatening complications requiring transplantation developed. Gastroschisis and delayed ostomy closure are confirmed as risk factor for nutritional failure. Intestinal rehabilitation may allow a total weaning of PN before adulthood. A follow-up by a multidisciplinary team is necessary to avoid PN complications in order to minimize indications for ITx.

Strategies to Reduce Catheter-Related Bloodstream Infections in Pediatric Patients Receiving Home Parenteral Nutrition: The Efficacy of Taurolidine-Citrate Prophylactic-Locking

BACKGROUND

Catheter-related bloodstream infections (CRBSIs) remain a major issue in patients who are receiving home parenteral nutrition (HPN). The aim of this interventional study was to assess the impact of a new strategy using taurolidine-citrate (T-C) prophylactic locks on the CRBSI rate in children with intestinal failure who are receiving HPN.

METHODS

The rate of CRBSIs was monitored every calendar year in a prospective cohort of 195 children with intestinal failure. T-C locks were initiated from October 2011 in children with recurring CRBSIs (≥2 episodes per year).

RESULTS

In the whole cohort, the median annual CRBSI rate per 1000 catheter days decreased significantly from 2.07 in 2008 to 2010 to 1.23 in 2012 to 2014 (P < .05). T-C locks were used in 40 patients. No adverse events were reported. In taurolidine-treated patients, the CRBSI rate per 1000 catheter days decreased from 4.16 to 0.25 (P < .0001). The cumulative percentage of patients free of CRBSI at 18 months was 92% (95% confidence interval [CI]: 71-98) on T-C lock vs 61% (95% CI: 49-72) in controls (P = .01). In multivariate analysis, factors associated with CRBSI were immune deficiency (adjusted hazard ratio 3.49; 95% CI: 1.01-12.17) and the young age of the parents (adjusted hazard ratio 4.79, 95% CI: 2.16-10.62), whereas T-C locks were protective (adjusted hazard ratio 0.22, 95% CI: 0.06-0.74).

CONCLUSION

This study confirms the efficacy of T-C catheter locks in decreasing the incidence of CRBSIs in children with intestinal failure who are receiving HPN.

Systematic Review and Meta-Analysis of the Utilization of Ethanol Locks in Pediatric Patients With Intestinal Failure

BACKGROUND

Intestinal failure is a chronic condition related to loss of bowel length and/or function, resulting in dependence on central venous catheters for fluids and nutrition. Catheter use can be associated with significant complications, including catheter-related bloodstream infections (CRBSIs), which can lead to loss of vascular access, advancing intestinal failure associated-liver disease and death. Our objective was to evaluate the effectiveness and safety of ethanol locks as compared with standard heparin locks in pediatric intestinal failure.

METHODS

Databases, including MEDLINE and EMBASE, were searched until March 2017. Titles and abstracts were reviewed independently and relevant articles reassessed by full-text review. The main outcome was the rate of CRBSIs, while secondary outcomes were catheter replacement and repair.

RESULTS

Nine observational studies were included. The mean difference in rate of CRBSIs was 6.27 per 1000 catheter days (95% CI, 4.89-7.66) favoring ethanol locks, with a 63% overall reduction in infection rate. The mean difference in catheter replacement rate (per 1000 catheter days) was 4.56 (95% Cl, 2.68-6.43) favoring ethanol locks. The overall effect on catheter repair rate (per 1000 catheter days) was -1.67 (95% CI, -2.30 to -1.05), indicating lower repair rate with heparin locks.

CONCLUSION

Sufficient evidence was noted showing that ethanol locks reduced CRBSIs and catheter replacements. Our findings raise questions about the effect of the ethanol lock on catheter integrity based on the noted increase in repair rate. This requires further prospective evaluation and may support selective application of ethanol locks to patients with documented CRBSIs.

Paediatric Home Parenteral Nutrition in the Czech Republic and Its Development: Multicentre Retrospective Study 1995-2011

Background: Treatment quality and outcomes of paediatric home parenteral nutrition (HPN) program during its development in the Czech Republic. Methods: A retrospective study of patients receiving HPN from May 1995 till June 2011. Results: Sixty-six patients were treated in 8 centres. In 48 patients, long-term PN began in the first year of life and in 35 of them in the first month. Sixty children had gastrointestinal and 6 had non-gastrointestinal disease. In a majority of the patients, the Broviac catheter was used. Thirty-two (48.5%) patients were weaned from PN after 1-117 months, 21 (32.8%) continued on HPN after 7-183 months, and 13 (19.7%) patients died, all on PN. The mortality in patients with primary gastrointestinal disease was significantly lower than in patients with non-gastrointestinal disease. Thirty-one paediatric patients were receiving HPN for 14,480 catheter days in 2009-2010. Fourteen patients had 23 Catheter Related Blood Stream Infections (CRBSI) episodes. The incidence of CRBSI in 2009-2010 was 1.58/1,000 catheter days. Conclusion: Submitted data showed that even in the absence of expert centres, patient care may achieve results comparable to countries with well-developed HPN program. A majority of Czech HPN patients are at present treated in specialized centres, following the most desirable pattern of care.

Taurolidine in Pediatric Home Parenteral Nutrition Patients

To reduce the incidence of catheter-related bloodstream infections in home parenteral nutrition patients, the use of taurolidine was introduced in the Sophia Children's Hospital in 2011. This introduction led to a reduction in catheter-related bloodstream infections: 12.7/1000 catheter days before the use of taurolidine, compared with 4.3/1000 catheter days afterwards (n = 7) [relative risk = 0.36, 95% confidence interval: 0.20-0.65 (P = 0.018)].

Outcome of home parenteral nutrition in 251 children over a 14-y period: report of a single center

BACKGROUND

Parenteral nutrition (PN) is the main treatment for intestinal failure.

OBJECTIVE

We aimed to review the indications for home parenteral nutrition (HPN) in children and describe the outcome over a 14-y period from a single center.

DESIGN

We conducted a retrospective study that included all children who were referred to our institution and discharged while receiving HPN between 1 January 2000 and 31 December 2013. The indications for HPN were divided into primary digestive diseases (PDDs) and primary nondigestive diseases (PNDDs). We compared our results to a previous study that was performed in our unit from 1980 to 2000 and included 302 patients.

RESULTS

A total of 251 patients were included: 217 (86%) had a PDD. The mean ± SD age at HPN onset was 0.7 ± 0.3 y, with a mean duration of 1.9 ± 0.4 y. The indications for HPN were short bowel syndrome (SBS) (59%), PNDD (14%), congenital enteropathies (10%), chronic intestinal pseudo-obstruction syndromes (9%), inflammatory bowel diseases (5%), and other digestive diseases (3%). By 31 December 2013, 52% of children were weaned off of HPN, 9% of the PDD subgroup had intestinal transplantation, and 10% died mostly because of immune deficiency. The major complications of HPN were catheter-related bloodstream infections (CRBSIs) (1.7/1000 d of PN) and intestinal failure-associated liver disease (IFALD) (51 children; 20% of cohort). An increased rate of CRBSIs was observed compared with our previous study, but we saw a decreasing trend since 2012. No noteworthy deceleration of growth was observed in SBS children 6 mo after weaning off HPN.

CONCLUSIONS

SBS was the major indication for HPN in our cohort. IFALD and CRBSIs were potentially life-threatening problems. Nevertheless, complication rates were low, and deaths resulted mostly from the underlying disease.

Evidence-Based Criteria for the Choice and the Clinical use of the Most Appropriate Lock Solutions for Central Venous Catheters (Excluding Dialysis Catheters): A GAVeCeLT Consensus

Background

The most appropriate lock solution for central venous access devices is still to be defined. GAVeCeLT – the Italian group for venous access devices – has developed a consensus on the evidence-based criteria for the choice and the clinical use of the most appropriate lock solution for central venous catheters (excluding dialysis catheters).

Method

After the constitution of a panel of experts, a systematic collection and review of the literature has been performed, focusing on clinical studies dealing with lock solutions used for prevention of occlusion (heparin, citrate, urokinase, recombinant tissue plasminogen activator [r-TPA], normal saline) or for prevention of infection (citrate, ethanol, taurolidine, ethylene-diamine-tetra-acetic acid [EDTA], vancomycin, linezolid and other antibiotics), in both adults and in pediatric patients. Studies on central lines used for dialysis or pheresis, on peripheral venous lines and on arterial lines were excluded from this analysis. Studies on lock solutions used for treatment of obstruction or infection were not considered. The consensus has been carried out according to the Delphi method.

Results

The panel has concluded that: (a) there is no evidence supporting the heparin lock; (b) the prevention of occlusion is based on the proper flushing and locking technique with normal saline; (c) the most appropriate lock solution for infection prevention should include citrate and/or taurolidine, which have both anti-bacterial and anti-biofilm activity, with negligible undesired effects if compared to antibiotics; (d) the patient populations most likely to benefit from citrate/taurolidine lock are yet to be defined.

Conclusions

The actual value of heparinization for non-dialysis catheters should be reconsidered. Also, the use of lock with substances with anti-bacterial and anti-biofilm activity (such as citrate or taurolidine) should be taken into consideration in selected populations of patients.

Management of intestinal failure in children

The management of children with intestinal failure is a rewarding but resource intensive process. There is however variability in practice and outcome for patients, despite the basic principles of care and measures of success being well defined. The importance of multidisciplinary working is paramount and there is an urgent need to obtain collaboration between paediatric surgical and medical gastroenterological colleagues and an obligation of commissioners to see that there is recognition and implementation of ideal practice as an essential element in improving the outlook for children with intestinal failure in the United Kingdom.

Refined Multidisciplinary Protocol-Based Approach to Short Bowel Syndrome Improves Outcomes

OBJECTIVE

Management of short bowel syndrome (SBS) has significantly evolved recently. We present our single-center, 25-year experience focusing on the implementation of a refined multidisciplinary SBS care protocol.

METHODS

This is a retrospective review of the patients with SBS treated at our tertiary center from 1988 to 2014, with either <25% short bowel remaining or duration of parenteral nutrition (PN) >3 months. Patients with primary intestinal motility disorders were excluded. Clinical characteristics, including intestinal anatomy, markers of cholestasis, and catheter-related infections (CRIs), were analyzed. The implementation of a refined modern uniform management protocol in 2009 divided the cohort into 2 subgroups, whose outcomes are compared.

RESULTS

Forty-eight patients with SBS were identified (median gestational age 33 weeks). Of them, 22 were born between 2009 and 2014. The main causes of SBS were necrotizing enterocolitis (46%) and midgut volvulus (23%). Median remaining small bowel length was 36 cm. The overall survival was 23 of 26 (88%) before 2009 and 21 of 22 (95%) thereafter, whereas none were transplanted. Duration of PN shortened from a median of 15 to 6 months (P = 0.0015) in the latter cohort, whereas frequency of autologous intestinal reconstruction surgery (31%) remained unchanged. Frequency of neonatal cholestasis was similar in both groups (75%), but cleared in all after 2009. Before 2009, 2 patients died of progressive cholestatic liver failure. The CRI rates decreased from 1.7 to 0.7 per 1000 catheter-days between 2000-2008 and 2009-2014, respectively (P = 0.0178).

CONCLUSIONS

Uniform refined multidisciplinary approach decreased the duration of PN and CRI rates with high transplant-free survival and avoidance of liver failure, although the frequency of transient neonatal cholestasis remained unchanged.

The prevention, diagnosis and management of central venous line infections in children

With advancing paediatric healthcare, the use of central venous lines has become a fundamental part of management of neonates and children. Uses include haemodynamic monitoring and the delivery of lifesaving treatments such as intravenous fluids, blood products, antibiotics, chemotherapy, haemodialysis and total parenteral nutrition (TPN). Despite preventative measures, central venous catheter-related infections are common, with rates of 0.5-2.8/1000 catheter days in children and 0.6-2.5/1000 catheter days in neonates. Central line infections in children are associated with increased mortality, increased length of hospital and intensive care unit stay, treatment interruptions, and increased complications. Prevention is paramount, using a variety of measures including tunnelling of long-term devices, chlorhexidine antisepsis, maximum sterile barriers, aseptic non-touch technique, minimal line accessing, and evidence-based care bundles. Diagnosis of central line infections in children is challenging. Available samples are often limited to a single central line blood culture, as clinicians are reluctant to perform painful venepuncture on children with a central, pain-free, access device. With the advancing evidence basis for antibiotic lock therapy for treatment, paediatricians are pushing the boundaries of line retention if safe to do so, due to among other reasons, often limited venous access sites. This review evaluates the available paediatric studies on management of central venous line infections and refers to consensus guidelines such as those of the Infectious Diseases Society of America (IDSA).

Infectious complications following serial transverse enteroplasty in infants and children with short bowel syndrome

BACKGROUND

Serial transverse enteroplasty (STEP) lengthens and tapers dilated small bowel in patients with short bowel syndrome (SBS). Previous reports document encouraging outcomes with regard to tolerance for enteral nutrition (EN) and complications appear related to the re-operative nature of many cases and to the presence of multiple staple lines. However, infectious complications following STEP have not been examined. Since infections, especially catheter-related blood stream infections (CRBSI), are considered detrimental in infants and children with SBS, we sought to define the frequency and outcomes of peri-operative infections associated with STEP.

METHODS

All children with SBS who underwent a STEP between 2004 and 2012 were indentified and their medical records were reviewed. Patients were considered candidates for a STEP if they had dilated small bowel and failure to advance enteral nutrition. For the purpose of this study, infections occurring within a 14-day period after STEP were considered procedure-related and were the focus of the study.

RESULTS

A total of 18 patients underwent 23 STEP procedures. Primary diagnoses included intestinal atresia, gastroschisis, necrotizing enterocolitis, and midgut volvulus. After the STEP, eight patients (35%) developed CRBSI, three developed wound infections, and two had urinary tract infections. Organisms isolated from either blood, wound or urine cultures included gram-positive cocci, gram-negative rods, and yeast. Perioperative antibiotics were administered in all cases with cefoxitin (43%) and piperacillin/tazobactam (30%) being most common. Neither antibiotic appeared superior in reducing the incidence of CRBSI. In three patients with persistent bacteremia despite adequate antibiotic therapy, a 74% ethanol lock resulted in negative blood cultures in all cases. Only one central venous catheter required replacement acutely for persistent fungemia.

CONCLUSION

STEP can improve enteral tolerance. In this fragile patient population, however, STEP carries a documented infectious burden. The optimal antibiotic prophylaxis and the role of ethanol locking in patients undergoing STEP require further study.

Chemical stability of heparin, isopropanol, and ethanol line lock solutions

BACKGROUND

Ethanol line locks are used in the US to prevent catheter associated bloodstream infections. Heparin precipitates in solution with ethanol. However, isopropanol may reduce precipitate formation. We aimed to determine the chemical stability of heparin, isopropanol, and ethanol line lock for a 10 day period at 2-8°C and 25°C.

METHODS

Forty samples were prepared for analysis. Each sample was prepared identically using a 5 ml syringe capped with a Combi-stopper: 1 ml 70% isopropanol, 1 ml 70% ethanol, and 1 ml heparin sodium 10 IU/ml. Twenty syringes were stored at 2-8°C and 20 at 25°C. Analysis was carried out on days 1, 3, 6, 8, and 10 with a single syringe from each condition being tested in duplicate. Samples were assessed visually. Sub-visible particle count analysis was carried out using a CLIMET particle counting system. Heparin concentration was analysed using an anti-Xa assay. Ethanol and isopropanol concentrations were analysed by gas chromatography.

RESULTS

Samples remained clear and colourless throughout the study. Sub-visible particle counts remained within limits specified in British Pharmacopoeia 2013 when stored at 2-8°C and 25°C, 60% humidity for up to 10 days. There was no significant change in ethanol or isopropanol concentration during the study. However, heparin activity fell by >10% after 1 day storage and to 65% of original activity after 10 days.

CONCLUSIONS

This study shows that addition of isopropanol to heparin and ethanol prevents precipitation. However, this solution shows a progressive decline in heparin activity over time making it unsuitable for extended shelf life.