Increased frequency of peripheral venipunctures raises the risk of central-line associated bloodstream infection in neonates with peripherally inserted central venous catheters

Placement of peripherally inserted central catheter through upper versus lower limb vein in neonates: A meta-analysis of randomized controlled trials

AIM

Peripherally inserted central catheter (PICC) is an important treatment for the drug and nutrition administration in neonates. We aimed to evaluate the effects and safety of PICC placement through upper versus lower limb vein in neonates, to provide insights into the clinical PICC nursing care.

DESIGN

A meta-analysis.

METHODS

We searched the Cochrane Library, Web of Science, PubMed, Science Direct, China national knowledge infrastructure, Wanfang Data Knowledge Service Platform, China Weipu Database, China Biomedical Literature Database for published randomized controlled trials (RCTs) on the placement of PICC via upper limb and lower limb venipuncture. Two reviewers independently evaluated and cross-checked the quality of the included studies in accordance with the quality standards of the Cochrane Manual. We used RevMan 5.3 software for statistical processing.

RESULTS

A total of 12 RCTs were included in this meta-analysis. Meta-analysis indicated that compared with upper limb veins, PICC insertion through lower limb veins is beneficial to increase the one-time puncture success rate (relative risk [RR]  =  0.73, 95% confidence interval [CI]: 0.68-0.79) and the indwelling time (mean difference [MD] =  -3.60, 95% CI: -5.35 to -1.86), reduce the operation time (MD =  10.37, 95% CI: 7.48-13.26), estimated bleeding volume (MD =  0.55, 95% CI: 0.34-0.75), incidence of catheter ectopia (RR  =  2.46, 95% CI: 1.81-3.35), PICC-associated infection (RR  =  2.82, 95% CI: 1.65-4.83), exosmosis (RR  =  2.45, 95% CI: 1.49-4.04, p < .001) and phlebitis (RR  =  1.40, 95% CI: 1.03-1.90). No significant difference in the Incidence of catheter obstruction between the upper and lower limb veins (RR  =  1.20, 95% CI: 0.73-1.97, p = .48) was found.

PUBLIC CONTRIBUTION

There are certain advantages in neonatal PICC puncture through the lower limb vein. The lower limb vein may be the preferred choice for neonatal PICC puncture.

Safety tests and clinical research on buccal and nasal microneedle swabs for genomic analysis

Conventional swabs have been used as a non-invasive method to obtain samples for DNA analysis from the buccal and the nasal mucosa. However, swabs may not always collect pure enough genetic material. In this study, buccal and nasal microneedle swab is developed to improve the accuracy and reliability of genomic analysis. A cytotoxicity test, a skin sensitivity test, and a skin irritation test are conducted with microneedle swabs. Polymer microneedle swabs meet the safety requirements for clinical research and commercial use. When buccal and nasal microneedle swabs are used, the amount of genetic material obtained is greater than that from commercially available swabs, and DNA purity is also high. The comparatively short microneedle swab (250 μm long) cause almost no pain to all 25 participants. All participants also report that the microneedle swabs are very easy to use. When genotypes are compared at five SNP loci from blood of a participant and from that person's buccal or nasal microneedle swab, the buccal and nasal microneedle swabs show 100% concordance for all five SNP genotypes. Microneedle swabs can be effectively used for genomic analysis and prevention through genomic analysis, so the utilization of microneedle swabs is expected to be high.

Prevalence of Hospital-Onset Bacteremia Pre- and Post-Implementation of a Needleless Blood Sampling Device From Existing Peripheral Catheters

Repeated access of peripheral intravenous (IV) devices theoretically increases the risk of bacterial exposure. PIVO™ (VelanoVascular) is a needleless, single-use device that enables blood sampling from an existing peripheral IV. The goal of this retrospective observational exploratory study was to evaluate the influence of PIVO use on rates of hospital-onset bacteremia and fungemia (HOB) by comparing HOB rates in the year before and after PIVO introduction in hospitals implementing PIVO and over similar time periods in "control" hospitals with no PIVO. Two hospitals implementing PIVO (Hospital 1, a large community hospital; Hospital 2, a tertiary oncology center), and 71 control hospitals were included. During the 1-year period before and after PIVO introduction, HOB rates decreased in hospitals 1 and 2 by 31.9% and 41.8%, respectively. Control hospitals that did not use PIVO had a 12.4% decrease in HOB rates. Multivariable logistic regression analyses found that PIVO was associated with a lower risk (Hospital 1 odds ratio [OR]: 0.63; 95% CI, 0.42-0.94) or no change (Hospital 2 OR: 1.05; 95% CI, 0.72-1.52) in HOB rates. Control hospitals also showed no change in HOB rates between the 2 time periods. These data do not support concerns about increased risk of bacteremia with PIVO.

Outcomes of Pediatric Osteogenesis Imperfecta Patients Requiring Port-a-Cath Placement for Long-Term Vascular Access

Intravenous (iv) bisphosphonates are widely used to treat the skeletal manifestations of osteogenesis imperfecta (OI). Obtaining peripheral iv access in pediatric patients with OI is often difficult and traumatic. Although this may be mitigated with surgically placed iv ports (port-a-caths), surgeons may be hesitant to perform this procedure on these children because of the lack of safety data. This study aims to gain better insight into the safety and efficacy of port-a-cath use in this population and identify risk factors for port-a-cath complications. In the present study, we conducted a retrospective cohort analysis of patient characteristics and the incidence of port-a-cath-related complications in children with OI. Fifty-three port-a-caths were placed in 29 children (21 males and 8 females). Of the 29 patients, most are OI type III (n = 18), followed by type I (n = 4), type IV (n = 4), and type V (n = 3). At the time of initial port-a-cath placement, the median age was 52 months (10-191 months), and the median weight was 7.9 kg (5.1-41.1 kg). Most patients (n = 20) weighed less than 10 kg during initial placement. Weight correlated significantly with OI type (p = 0.048), sex (p = 0.03), and vessel used (p = 0.02). Median initial port-a-cath longevity was 43 months (1-113 months), and we found no significant difference in port-a-cath longevity between sexes, OI types, or vessels used. Most patients (n = 19) required multiple port-a-cath placements. There is a significant difference (p = 0.02) between the number of placements and OI type, with type IV having more than type III. Port-a-cath removal was almost always due to mechanical complications (n = 19) but also for infection (n = 1) and malposition (n = 1). Eight patients still had their initial port-a-caths in place at the conclusion of this study. These findings indicate that complications associated with port-a-cath placement are mild and can be used to safely deliver iv bisphosphonates to pediatric OI patients. © 2023 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.

Modified Seldinger technique for neonatal epicutaneo-caval catheter insertion: A non-randomised retrospective study

BACKGROUND

Epicutaneo-Caval Catheters (ECCs) are critical for good neonatal care. No previous studies have evaluated which insertion method provides the highest likelihood of success.

METHODS

This study aimed to compare the success rates and cost of modified Seldinger technique (MST) and split needle technique (SNT). MST was introduced to St Michael's Neonatal Unit, SNT was already in use. Routinely documented data on ECC insertion was retrospectively collected from the clinical notes. Practitioners were able to use their preferred insertion method. A sub-group analysis of success rates in patients born at ⩾35-weeks GA was performed.

RESULTS

There was a significantly higher first pass (53% vs 26%; p = 0.014) and overall (72% vs 40%; p = 0.0046) successful ECC insertion rate with fewer venipunctures per successful ECC with MST (2.5 vs 6.5; p = 0.002). Logrank test demonstrated a significantly higher successful ECC insertion with MST for patients of all GA (p = 0.003) and for neonates born at ⩾35 weeks (p = 0.015). The cost per successful MST ECC was £156.41 versus £152.51 for SNT.

CONCLUSION

In this uncontrolled retrospective study, there was a higher chance of successful ECC insertion with MST, with a reduced number of venipunctures and similar costs per successful ECC. Further work in randomised studies is needed to verify this finding and should focus on other clinical outcomes, including rates in central line associated blood stream infections.

Application of epicutaneo-cava catheters with 24G indwelling needles in very low birth weight infants: a safe and simple innovative technique

Background

Epicutaneo-cava catheter (ECC) is an ideal venous access for very low birth weight (VLBW) infants. However, because veins of VLBW infants are thin, ECC catheter is difficult to insert, and the success rate of puncture is low. This study aimed to use ECC with 24G indwelling needles to improve the outcomes of VLBW infants.

Methods

This retrospective study enrolled 121 VLBW infants (birthweight <1,500 g) who required ECC catheterization and were admitted to the Neonatal Intensive Care Unit of the Children's Hospital of Zhejiang University School of Medicine between January 2021 and December 2021. The patients were divided into the indwelling needle group and the conventional technique group according to the technique of ECC. The demographic and treatment data of the two groups were collected, and the success rate of first attempt cannulation of ECC and catheter-related complications of the two groups were analyzed and compared.

Results

There were no significant differences in gender, age, and body weight between the two groups on the day of ECC insertion and venipuncture site. It can be seen through model analysis that the success rate of first-attempt cannulation of ECC in the indwelling needle group was significantly higher than in the conventional technique group. In contrast, average catheterization time and catheterization-related bleeding risk in the indwelling needle group were significantly lower than in the conventional technique group (p = 0.00,and 0.00, respectively). Infection during catheter placement, indwelling catheter duration and catheter-related infection between the two groups (p > 0.05).

Conclusion

Application of ECC with 24G indwelling needles in VLBW infants can improve the success rate of first attempt cannulation of ECC, reduce the time of catheterization and the risk of bleeding, which may be popularized for widespread application.

An Observational Study on the Use of Peripheral Intravenous Lines vs. Central Lines in a Neonatal Intensive Care Unit

Background and Objectives: There is a debate regarding the preferred intravenous (IV) access for newborns. Our aim was to study practices regarding the choice of vascular access and outcomes. Methods: A seven-month prospective observational study on IV lines used in all newborns admitted to Bnai Zion Medical Center’s neonatal intensive care unit (NICU). Results: Of 120 infants followed, 94 required IV lines. Infants born at ≤32 weeks gestation, or with a head circumference ≤29 cm were more likely to require two or more IV lines or a central line for the administration of parenteral nutrition or medications for longer periods. However, central lines (umbilical or peripherally inserted central catheters (PICC)) were not associated with better nutritional status at discharge based on weight z-scores. Only one complication was noted—a central line-associated bloodstream infection in a PICC. Conclusions: Our data suggest preferring central IV access for preterm infants born at ≤32 weeks or with a head circumference ≤29 cm. We encourage other NICUs to study their own data and draw their practice guidelines for preferred IV access (central vs. peripheral) upon admission to the NICU.

Peripherally inserted central catheter in newborns: association of number of punctures, vein, and tip positioning

OBJECTIVE

to assess the use of peripherally inserted central catheters regarding the neonate's profile, indications for use, and catheterized vein; the relation between the number of puncture attempts and vein; and assessment of the catheter tip position.

METHOD

documentary, descriptive, retrospective, quantitative study, developed in a tertiary maternity hospital in Ceará. A total of 3,005 PICC insertion formularies was included and 1,583 were excluded due to incomplete data, with a convenience sampling of 1,422 insertions being obtained.

RESULTS

There were 1,200 (84.4%) newborns with gestational age below 37 weeks; 781 (54.9%) males; Apgar score above 7 in the first (628-44.2%) and fifth minutes (1,085-76.3%); and weight between 1,000 and 1,499 grams on the day of insertion (417-29.3%). Antibiotic therapy had 1,155-53.8% indications for insertion; the basilic was the most used vein (485-34.1%); basilic and cephalic veins had lower median puncture attempts and 1,124-79% insertions were centrally positioned.

CONCLUSION

The results of this research highlight the continuous need to improve technical-scientific knowledge to qualify actions in neonatology.

Avoidable Serum Potassium Testing in the Cardiac ICU: Development and Testing of a Machine-Learning Model

OBJECTIVES

To create a machine-learning model identifying potentially avoidable blood draws for serum potassium among pediatric patients following cardiac surgery.

DESIGN

Retrospective cohort study.

SETTING

Tertiary-care center.

PATIENTS

All patients admitted to the cardiac ICU at Boston Children's Hospital between January 2010 and December 2018 with a length of stay greater than or equal to 4 days and greater than or equal to two recorded serum potassium measurements.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

We collected variables related to potassium homeostasis, including serum chemistry, hourly potassium intake, diuretics, and urine output. Using established machine-learning techniques, including random forest classifiers, and hyperparameter tuning, we created models predicting whether a patient's potassium would be normal or abnormal based on the most recent potassium level, medications administered, urine output, and markers of renal function. We developed multiple models based on different age-categories and temporal proximity of the most recent potassium measurement. We assessed the predictive performance of the models using an independent test set. Of the 7,269 admissions (6,196 patients) included, serum potassium was measured on average of 1 (interquartile range, 0-1) time per day. Approximately 96% of patients received at least one dose of IV diuretic and 83% received a form of potassium supplementation. Our models predicted a normal potassium value with a median positive predictive value of 0.900. A median percentage of 2.1% measurements (mean 2.5%; interquartile range, 1.3-3.7%) was incorrectly predicted as normal when they were abnormal. A median percentage of 0.0% (interquartile range, 0.0-0.4%) critically low or high measurements was incorrectly predicted as normal. A median of 27.2% (interquartile range, 7.8-32.4%) of samples was correctly predicted to be normal and could have been potentially avoided.

CONCLUSIONS

Machine-learning methods can be used to predict avoidable blood tests accurately for serum potassium in critically ill pediatric patients. A median of 27.2% of samples could have been saved, with decreased costs and risk of infection or anemia.

Ultrasound-guided supraclavicular cannulation of the brachiocephalic vein may reduce central line-associated bloodstream infection in preterm infants

The objective of this study was to assess the risk of central line-associated bloodstream infection (CLABSI) of ultrasound (US)-guided cannulation of the brachiocephalic vein (BCV) compared to standard epicutaneous cava catheters (ECCs) in preterm infants. This was a retrospective cohort study in preterm infants with a birth weight of less than 1500 g. Each BCV catheter was matched 1:3 with ECCs according to sex, birth weight, and year of insertion. The main outcome was the CLABSI density rate per 1000 days. Secondary outcomes included CLABSI episodes, CLABSI episodes per infant, and CLABSI/death. A multivariate Cox regression analysis was performed to assess whether the type of catheter (ECC vs. BCV) was associated with CLABSI risk. Ninety-six catheters (21 BCVs and 75 ECCs) in 79 infants were included (993 catheter days). BCV catheters were associated with a reduced CLABSI density rate compared to ECCs (3.05/1000 days vs 21.1/1000 days; p < 0.001). ECCs were associated with increased CLABSI risk compared to BCV catheters in multivariate analysis (hazard ratio 36; (95% CI, 2.5-511); p = 0.008).Conclusion: US-guided supraclavicular cannulation of the BCV was associated with a reduced risk of CLABSI compared to ECCs. This finding deserves further multicenter research. What is Known: • An epicutaneous-cava catheter (ECC) is commonly used in preterm infants for routine care (eg. delivery of nutrition and antibiotics) but this device may not suffice in infants who need high-intensity care (multiple drugs, hemodynamic monitoring, fluid resuscitation etc.). • Ultrasound-guided brachiocephalic vein (BCV) catheterization has shown a high success rate and few immediate complications in neonates and small infants but it has never been compared to standard ECCs. What is New: • When the operator in properly trained, US guided cannulation of the BCV in preterm infants is feasible, safe and may reduce the risk of CLABSI compared to standard ECCs. • This fact may expand the use of BCV catheters in selected high-risk preterm infants who need a large bore venous access.

Central venous access in children: indications, devices, and risks

PURPOSE OF REVIEW

Central venous catheters (CVCs) have a prominent role in the diagnostic and therapy of neonates and children. Herein, we describe the multiple indications for CVC use and the different devices available for central venous access. Given the prevalent use of CVCs, healthcare systems are focused on reducing complications from their use, particularly central line-associated bloodstream infections (CLABSIs). The most up-to-date information available sheds light on best practices and future areas of investigation.

RECENT FINDINGS

Large systematic reviews of randomized trials suggest that ultrasound guidance for placement of CVCs in children is safer than using blind technique, at least for internal jugular vein access. Appropriate catheter tip placement is associated with decreased complications. Furthermore, the prophylactic use of ethanol lock between cycles of parenteral nutrition administration has reduced the rates of CLABSI. A recent randomized trial in pediatric CVCs showed a benefit with antibiotic-coated CVCs.

SUMMARY

Based on the available evidence, multiple techniques for CVC placement are still valid, including the landmark technique based on practitioner experience, but ultrasound guidance has been shown to decrease complications from line placement. Adherence to CVC care protocols is essential in reducing infectious complications.