Are Graduating Pediatric Residents Prepared to Perform Infant Lumbar Punctures?: A Multi-Institutional Descriptive Study

Prospective study on ultrasonographic measurement of the spinal canal depth in very low birth weight infants

BACKGROUND

Lumbar punctures (LP) in very low birth weight (VLBW) infants often have low success rates. Point-of-care ultrasound (POCUS)-based spinal canal depth (SCD) measurements may provide better outcomes.

AIM

To provide POCUS-based SCD measurement values for VLBW infants using different calculation methods at the L4/5 and L3/4 levels.

METHODS

This prospective observational study involved 31 VLBW infants in the neonatal intensive care unit at Women's Wellness and Research Center, Doha, Qatar, from March 2022 to September 2023. The outcome measures included anterior (ASCD), mid (MSCD) and posterior spinal canal depth (PSCD) measurements. The study compared results from different calculation methods at the L4/5 and L3/4 levels.

RESULTS

A total of 63 ultrasound examinations were performed on 31 infants. The median gestational age was 25.0 weeks (IQR 24-27), with a birth weight of 817.9±170.2 g and a birth height of 31.6±2.8 cm. The MSCD at L4/5 was 7.1±0.5 mm and 6.9±0.5 mm at L3/4, with a mean difference (MD) of 0.20 (95% CI 0.15 to 0.24; p<0.001). The mean SC anteroposterior diameter at L4/5 was 3.8 mm versus 4.2 mm at L3/4 (MD -0.334, 95% CI -0.45 to 0.22; p<0.001). Weight-based and body surface area (BSA) calculations correlated best with MSCD at both levels. The MSCD in millimetres was determined by the equations 2×weight (kg)+6 (R²=0.71) at L4/5 and (R²=0.70) at L3/4 and 25×BSA (m²)+5 (R²=0.71) at L4/5 and (R²=0.73) at L3/4 levels. Moreover, body weight and BSA showed a slightly stronger correlation with ASCD measurements compared with PSCD. All SCD measurements demonstrated a poor linear correlation with body length (cm) and body mass index (kg/m²).

CONCLUSION

This study offers reference data for POCUS-based SCD measurements in VLBW infants, demonstrating that body weight and BSA effectively predict SCD. These findings could enhance the accuracy of LPs in this population when ultrasound guidance is unavailable, supporting personalised care.

Procedural Entrustment Alignment Between Pediatric Residents and Their Preceptors in the Pediatric Emergency Department

OBJECTIVE

Entrustment describes the balance of supervision and autonomy between resident and preceptor to complete doctoring tasks like procedures. Entrustment alignment between resident and preceptor facilitates safe, successful outcomes, and promotes learning. Study objectives describe procedural entrustment alignment between senior pediatric residents and their preceptors and report the impact of a simulation-based formative assessment (SFA) on entrustment alignment.

METHODS

This prospective observational study enrolled a convenience sample of senior pediatric residents in 2023. The SFA was videoed, consisted of obtaining informed consent and performing simulated procedures (laceration [LAC] and lumbar puncture [LP]). Residents self-assessed their entrustability pre/post-SFA. A PEM preceptor panel individually rated videos of the residents. PEM panel's scores were compared to residents' scores on both an 8-point scale and the dichotomized variable of needing "in versus out" of the room entrustment.

RESULTS

Twenty-four residents' SFAs were rated by 9 panelists. Before the SFA, entrustment alignments on the 8-point scale were as follows: resident LAC 4.08 vs PEM panel 4.97 ( P  < 0.001), and resident LP 4.75 vs PEM panel 5.31 ( P  = 0.15). After the SFA, entrustment alignments were as follows: resident LAC 5.21 vs PEM panel 4.97 ( P  = 0.32), and resident LP 5.54 vs PEM panel 5.31 ( P  = 0.52). The dichotomized analyses revealed improved alignment post-SFA: LAC-pre-kappa = 0.03 vs LAC-post 0.46, and LP-pre-kappa = (-0.03) vs LP-post = 0.24.

CONCLUSIONS

Our findings indicate senior pediatric residents desire less entrustment (more supervision) for procedures but better align with preceptors after an SFA. This work offers insight into procedural entrustment decision making and the potential of SFA's to facilitate procedural learning.

Trends in Procedures in the Neonatal Intensive Care Unit

OBJECTIVE

The aim of the study is to identify the rates and trends of various procedures performed on newborns.

STUDY DESIGN

The Healthcare Cost and Utilization Project (HCUP) database for the years 2002 to 2015 was queried for the number of livebirths, and various procedures using International Classification of Diseases, Ninth Revision (ICD-9) codes. These were adjusted to the rate of livebirths in each particular year. A hypothetical high-volume hospital based on data from the last 5 years was used to estimate the frequency of each procedure.

RESULTS

Over the study period, there was a decline in the rates of exchange transfusions and placement of arterial catheters. There was an increase in the rates of thoracentesis, abdominal paracentesis, placement of umbilical venous catheter (UVC) lines, and central lines with ultrasound or fluoroscopic guidance. No change was observed in the rates of unguided central lines, pericardiocentesis, bladder aspiration, intubations, and LP. Intubations were the most performed procedures. Placement of UVC, central venous lines (including PICCs), arterial catheters, and LP were relatively common, whereas others were rare such as pericardiocentesis and paracentesis.

CONCLUSION

Some potentially lifesaving procedures are extremely rare or decreasing in incidence. There has also been an increase in utilization of fluoroscopic/ultrasound guidance for the placement of central venous catheters.

KEY POINTS

· Advances in neonatal care have impacted the number of procedures performed in the NICU.. · It is unclear whether invasive procedures occur at rates sufficient for adequate training and maintenance of skills.. · Understanding the NICU procedural trends is important in designing simulation and competency-based medical education programs..

Understanding the Procedural Skills Needed in Rural Pediatric Practices: A Survey of Rural Pediatric Providers in the State of New Mexico

OBJECTIVES

There is little data evaluating procedural skills in current rural pediatric practices. In order to prepare a cadre of pediatricians to work in rural settings, we require an understanding of the unique procedural skills needed by rural pediatric providers. Our objective was to determine how often pediatricians performed various procedural skills, determine the importance of these skills to current practice, and how they differ between rural and urban pediatric providers.

METHODS

A survey evaluating pediatrician utilization of the 13 required Accreditation Council Graduate Medical Education procedural skills in current practice was developed and distributed to pediatric providers in New Mexico. Descriptive statistics were used to profile participants and describe survey responses. Chi-square tests were used to evaluate differences by urban setting or IHS. Fisher's exact test was employed to assess differences if cell sizes were less than five. All p-values were two sided with alpha=.05. Benjamini-Hochberg method was used to control for type 1 errors.

RESULTS

Fifty-two of 216 pediatric providers responded. The majority surveyed performed each of the 13 procedures less than monthly but competency in many of these procedures is important. Thirty-two respondents submitted free-text responses recommending competence with tracheostomy changes, gastrostomy-tube changes/cares, and circumcision.

CONCLUSION

Majority of surveyed pediatricians performed the required procedures less than monthly but deemed several procedures to be important. Rural pediatricians recommended specific procedural skills needed in rural practice. All trainees receive procedural skills training. However, trainees interested in rural practice may need additional training in specific skills different than their non-rural counterparts.

Success and complications in lumbar punctures of pediatric patients with leukemia: a study protocol for a randomized clinical crossover trial of a bioimpedance needle system versus conventional procedure

BACKGROUND

Acute lymphoblastic leukemia (ALL) is the most common malignancy diagnosed in children. At present, the long-term survival from pediatric ALL is well over 90%. However, the probability of event-free survival is reduced if the lumbar puncture (LP) procedures at the beginning of the patient's intrathecal therapy cause blood leakage into the spinal canal and blast cells contaminate the cerebrospinal fluid. According to the literature, such traumatic LP procedures concern one out of five pediatric patients with ALL. Recently, a novel medical device measuring the tissue bioimpedance at the tip of a spinal needle was found feasible in pediatric patients with ALL. The LP procedure was successful at the first attempt in 80% of procedures, and the incidence of traumatic LPs was then 11%. The purpose of the present study is to compare the bioimpedance spinal needle system with the standard clinical practice resting on a conventional spinal needle and investigate its efficacy in clinical practice.

METHODS

The study is a multicenter, randomized, two-arm crossover noninferiority trial of pediatric hemato-oncology patients that will be conducted within the usual clinical workflow. Patients' LP procedures will be performed alternately either with the IQ-Tip system (study arm A) or a conventional Quincke-type 22G spinal needle (study arm B). For each enrolled patient, the order of procedures is randomly assigned either as ABAB or BABA. The total number of LP procedures will be at least 300, and the number of procedures per patient between two and four. After each study LP procedure, the performance will be recorded immediately, and 1-week diary-based and 4-week record-based follow-ups on symptoms, complications, and adverse events will be conducted thereafter. The main outcomes are the incidence of traumatic LP, first puncture success rate, and incidence of post-dural puncture headache.

DISCUSSION

The present study will provide sound scientific evidence on the clinical benefit, performance, and safety of the novel bioimpedance spinal needle compared with the standard clinical practice of using conventional spinal needles in the LP procedures of pediatric patients with leukemia.

TRIAL REGISTRATION

ISRCTN ISRCTN16161453. Registered on 8 July 2022.

Improving Procedural Skill Confidence in Pediatric Residents: A Longitudinal Simulation-Based Workshop Curriculum

Introduction

Exit surveys among our pediatric residency graduates found 50% were not confident performing required procedures. While procedural competency poses many curricular challenges, simulation is an effective educational modality many programs have adopted, though often only through onetime workshops limited to single procedures, clinical settings, or levels of training. We sought to develop a comprehensive, recurring, yearlong, simulation-based curriculum covering many important pediatric procedures.

Methods

We created a longitudinal curriculum of recurring monthly workshops using both low- and high-fidelity simulators, highlighting 17 pediatric procedures. Comprehensive facilitator guides contained equipment lists, instructions, competency checklists, and quizzes for each workshop. Correlation between attendance and confidence was assessed for skills in which residents attended two or more workshops on the same skill. ACGME exit surveys compared graduates' confidence regarding procedural skills before and after curriculum implementation.

Results

On exit surveys, graduates who agreed or strongly agreed to feeling comfortable with the procedures in our curriculum improved from 50% to 66% after 2 years, and those who disagreed or strongly disagreed decreased from 40% to 22%. A positive correlation existed between repeated workshop attendance and confidence in many procedures (R² range, .60-.99).

Discussion

Longitudinal simulation is an effective educational modality that increases learner confidence in performing procedures. Our curriculum addresses adult learners' need for repetition and can be adopted by other programs to improve graduates' confidence. The curriculum's sustainability is underscored by use of cost-reducing low-fidelity simulators and comprehensive guides that allow any instructor to conduct the workshop.

The Success of Resident-Associated Lumbar Punctures at a Large, Single-Center Children's Hospital

OBJECTIVES

The frequency of lumbar punctures (LPs) has declined across US children's hospitals over the past decade, potentially decreasing procedural learning opportunities for pediatric resident trainees. Our study sought to determine whether the proportion of successful LPs performed by our pediatric residents has significantly changed over time.

METHODS

This study is a single-center retrospective study to evaluate our pediatric resident LP success. We evaluated our primary outcome, proportion of overall LP success over time, using linear regression. We similarly used linear regression for proportion of successful resident-associated LPs over time. We calculated the median number of LPs of all pediatric residents during the study period.

RESULTS

We analyzed 3143 LPs from April 2012 to December 2019. Both the overall number of LPs performed and the proportion of LPs that were successful have not significantly changed over an 8-year period ( P > 0.05, P > 0.05). Similarly, the number of our resident-associated LPs and the proportion of successful resident-associated LPs have not changed over the study period ( P > 0.05, P > 0.05). Our pediatric residents performed a median of 3 LPs (interquartile range: 2-4) in the pediatric emergency department (PED) over residency.

CONCLUSIONS

Despite national trends showing decreased LP rates at pediatric hospitals, we demonstrated stable proportions of LPs and success by our pediatric residents. Pediatric residents perform a relatively low number of LPs in the PED setting alone. Future research is needed to demonstrate whether these overall low numbers in the PED translate to procedural competency after residency graduation.

Pediatric Resident Perspectives on Long-Acting Reversible Contraception Training: A Cross-Sectional Survey of Accreditation Council for Graduate Medical Education Trainees

PURPOSE

Although pediatricians are primary care providers for most adolescents, pediatric residents receive limited training on long-acting reversible contraceptive (LARC) methods. This study aimed to characterize pediatric resident comfort with placing contraceptive implants and intrauterine devices (IUDs) and assess pediatric resident interest in obtaining this training.

METHODS

Pediatric residents in the United States were invited to participate in a survey assessing comfort with LARC methods and interest in LARC training during pediatric residency. Bivariate comparisons used Chi-square and Wilcoxon rank sum testing. Multivariate logistic regression was used to assess associations between primary outcomes and covariates including geographic region, training level, and career plans.

RESULTS

Six hundred twenty seven pediatric residents across the United States completed the survey. Participants were predominantly female (68.4%, n = 429), self-identified their race as White (66.1%, n = 412), and anticipated a career in a subspecialty other than Adolescent Medicine (53.0%, n = 326). Most residents were confident counseling patients on the risks and benefits, side effects, and effective use of contraceptive implants (55.6%, n = 344) and both hormonal and nonhormonal IUDs (53.0%, n = 324). Few residents reported comfort with inserting contraceptive implants (13.6%, n = 84) or IUDs (6.3%, n = 39), with most of these respondents having learned these skills as a medical student. Most participants believed that residents should receive training on insertion of contraceptive implants (72.3%, n = 447) and IUDs (62.5%, n = 374).

DISCUSSION

Although most pediatric residents believe LARC training should be a component of pediatric residency training, few pediatric residents are comfortable with provision of this care.

Do Spinal Needle Sizes Affect the Development of Traumatic CSF in Neonatal LP Procedures?

Lumbar puncture (LP) is widely employed to evaluate infectious, neurological and metabolic diseases in the newborn. Neonatal LP is a difficult procedure with 45–54% success rates. Although there are studies examining traumatic LP failure, studies on the effects of needle sizes are limited. This study was intended to investigate the effect of needle sizes on LP traumatization. Term and premature babies who underwent LP in the neonatal intensive care unit between 30 November 2017 and 30 July 2019 were included in the study by retrospective file scanning. LP was performed by a pediatric or neonatal specialist using a 22 Gauge pen (G) or 25 G pen spinal needle in all cases, with all patients being placed in the lateral decubitus position. The primary outcome was to evaluate the effect of needle sizes used in LP on traumatization. The secondary outcome was to evaluate traumatization rates and complications. A statistically significant difference was determined in the rate of traumatized LP and desaturation development between needle sizes and CSF microscopic findings (p = 0.031, p = 0.005, and p = 0.006, respectively). The study data show that 25 G pen-tip spinal needles cause less traumatic LP in neonates than 22 G pen-tip spinal needles.

A Decade Later-Progress and Next Steps for Pediatric Simulation Research

SUMMARY STATEMENT

A decade ago, at the time of formation of the International Network for Pediatric Simulation-based Innovation, Research, and Education, the group embarked on a consensus building exercise. The goal was to forecast the facilitators and barriers to growth and maturity of science in the field of pediatric simulation-based research. This exercise produced 6 domains critical to progress in the field: (1) prioritization, (2) research methodology and outcomes, (3) academic collaboration, (4) integration/implementation/sustainability, (5) technology, and (6) resources/support/advocacy. This article reflects on and summarizes a decade of progress in the field of pediatric simulation research and suggests next steps in each domain as we look forward, including lessons learned by our collaborative grass roots network that can be used to accelerate research efforts in other domains within healthcare simulation science.

Bioimpedance spinal needle provides high success and low complication rate in lumbar punctures of pediatric patients with acute lymphoblastic leukemia

In this prospective single-arm study of 50 pediatric patients with acute lymphoblastic leukemia (ALL), we evaluated the clinical performance of a novel bioimpedance spinal needle system in 152 intrathecal treatment lumbar punctures (LP) of these patients. The system detects in real-time when the needle tip reaches the cerebrospinal fluid (CSF) in the spinal canal. The success was defined as getting a CSF sample and/or administering the intrathecal treatment with one needle insertion. Incidence of traumatic LP (TLP) was defined as ≥ 10 erythrocytes/µL of CSF. Post-procedural complications were monitored with a one-week diary and one-month register follow-up. The success of the first attempt was 79.5%, with the CSF detection sensitivity of 86.1%. The incidence of TLP was 17.3%. A successful first attempt was associated with a significantly lower incidence of TLP (10% vs 40%, p = 0.0015). During the week after the procedure, the incidence of post-dural puncture headache was 6%. During the follow-up, no major complications were observed. In conclusion, the novel bioimpedance spinal needle system achieved a high success rate and low incidence of TLP and other complications in pediatric patients with ALL in a real-world clinical setting, indicating clinical utility for this system in pediatric hemato-oncology.

Comparison of Radiologists and Other Specialists in the Performance of Lumbar Puncture Procedures Over Time

BACKGROUND AND PURPOSE

Lumbar punctures may be performed by many different types of health care providers. We evaluated the percentages of lumbar punctures performed by radiologists-versus-nonradiologist providers, including changes with time and discrepancies between specialties.

MATERIALS AND METHODS

Lumbar puncture procedure claims were identified in a 5% sample of Medicare beneficiaries from 2004 to 2017 and classified by provider specialty, site of service, day of week, and patient complexity. Compound annual growth rates for 2004 versus 2017 were calculated; t test and χ² statistical analyses were performed.

RESULTS

Lumbar puncture use increased from 163.3 to 203.4 procedures per 100,000 Medicare beneficiaries from 2004 to 2017 (overall rate, 190.3). Concurrently, the percentage of lumbar punctures performed by radiologists increased from 37.1% to 54.0%, while proportions performed by other major physician specialty groups either declined (eg, neurologists from 23.5% to 10.0%) or were largely unchanged. While radiologists saw the largest absolute increase in the percentage of procedures, the largest relative increase occurred for nonphysician providers (4.2% in 2004 to 7.5% in 2017; +78.6%). In 2017, radiologists performed most procedures on weekdays (56.2%) and a plurality on weekends (38.2%). Comorbidity was slightly higher in patients undergoing lumbar puncture by radiologists (P < .001).

CONCLUSIONS

Radiologists now perform most lumbar puncture procedures for Medicare beneficiaries in both the inpatient and outpatient settings. The continuing shift in lumbar puncture responsibility from other specialists to radiologists has implications for clinical workflows, cost, radiation exposure, and postgraduate training.

Real-time detection of cerebrospinal fluid with bioimpedance needle in paediatric lumbar puncture

Background

Lumbar puncture is a common clinical procedure that can occasionally be difficult. Various needle guidance methods can facilitate performing this procedure, but at the expense of special expertise, equipment and facility. In the present study, we evaluated the clinical feasibility of a novel bioimpedance needle system regarding its ability to detect cerebrospinal fluid (CSF) in paediatric lumbar punctures.

Methods

We performed 40 lumbar puncture procedures using the bioimpedance needle system in 37 paediatric patients, aged from 0 days to 17 months, as a part of their prescribed examinations in two university hospitals. The bioimpedance needle is similar to a conventional 22G cutting‐edge spinal needle with a stylet, except the needle and stylet are configured as a bipolar electrode with high spatial resolution. The system measures in real‐time when the needle tip reaches the subarachnoid space containing CSF. The procedure was considered successful when the erythrocyte count was determined from the obtained CSF sample.

Results

Subarachnoid space was verifiably reached in 28 out of 40 procedures (70%). Bioimpedance needle system detected CSF in 23 out of these 28 successful procedures (82%) while failed in 3 out of 28 procedures (11%). No adverse events were reported.

Conclusion

Bioimpedance spinal needle system was found clinically feasible in paediatric lumbar punctures, and it may offer an objective and simple means to detect the time point when the needle tip is in contact with the cerebrospinal fluid.

The Variability of Preferred Infant Lumbar Puncture Insertion Site Between Novice and Experienced Physicians

BACKGROUND

We sought to determine if vertebral interspace selection for performance of infant lumbar puncture (LP) varies between less experienced trainees and more experienced pediatric emergency medicine (PEM) attending physicians.

METHODS

We performed an observational prospective study using a convenience sample of infants aged 0 to 12 months presenting to a single emergency department. Trainees with limited LP experience (defined as less than 10 infant LPs performed) marked their preferred LP insertion site with an invisible ultraviolet pen. PEM attending physicians subsequently marked their preferred LP insertion site with a visible pen. A trained sonographer then performed a bedside ultrasound to confirm interspace concordance or discordance. Our primary outcome was the proportion of concordant marked insertion sites.

RESULTS

Of the 110 patients enrolled, 102 (92.8%) completed study procedures. Trainee and PEM attending LP interspace markings were concordant in 27% of cases. Trainees marked a preferred interspace below the level of the attending in 55% of patients: 29 (28.4%) marked one spot inferior, 20 (19.6%) marked two spots inferior, and seven (6.9%) marked three spots inferior in relation to the attending.

CONCLUSIONS

There is variability of preferred LP insertion site based on provider experience. Trainees with limited LP experience tended to mark insertion spaces more caudal than those marked by the attending physicians in an area where the subarachnoid space is slightly smaller.

General Pediatricians' Performance of Accreditation Agency's Recommended Procedures: A Complementary Analysis Using Administrative Data and the Knowledge Translation Model

INTRODUCTION

The Accreditation Council for Graduate Medical Education provided guidelines, in 2013, regarding 13 clinical procedures pediatric residents should learn. Previous studies show that, when asked, general pediatricians (GPeds) self-report performing these procedures infrequently. When examined using the knowledge translation model, this low procedural performance frequency, especially by GPeds, may indicate a problem within the primary care landscape.

METHODS

This was a descriptive study using the Partners For Kids, an accountable care organization, database to obtain how frequently each of the procedures was performed for a geographically representative sample of GPeds in central Ohio.

RESULTS

A total of 296 physicians participated in Partners For Kids. Nearly one-third practiced for more than 15 years (n = 83, 28%) and one-third also lived in a rural region (n = 78, 26.4%). The most commonly billed procedure was administering immunizations (n = 79,292, 92.3%); the least was peripheral intravenous catheter placement (n = 2, 0.002%). Most procedures were completed in the office-based setting.

DISCUSSION

General pediatricians in central Ohio do not frequently perform the 13 recommended procedures of Accreditation Council for Graduate Medical Education. Evaluation of this problem using the knowledge translation model shows that potential barriers could be inadequate training during or after residency or more likely that these procedures are not necessary in GPeds' current scope of practice. The next step should be to see, from the practitioner's perspective, what procedures are important to their daily practice. Adapting this knowledge to the local context will help target continuing medical education/continuing professional development interventions.

Can simulation-based education and precision teaching improve paediatric trainees' behavioural fluency in performing lumbar puncture? A pilot study

BACKGROUND

Low levels of success in performing lumbar puncture have been observed among paediatric trainees. This study assessed the efficacy of simulation-based education with frequency building and precision teaching for training lumbar puncture to behavioural fluency.

METHODS

The intervention group was assessed at baseline, at the final training trial, in the presence of distraction, and a minimum of one month after the cessation of the intervention in order to ascertain whether behavioural fluency in lumbar puncture was obtained. Subsequently, the performance of this intervention group (10 paediatric senior house officers) was compared to the performance of a comparator group of 10 more senior colleagues (paediatric registrars) who had not received the intervention. Retrospective chart audit was utilised to examine performance in the clinical setting.

RESULTS

Intervention group participants required a mean of 5 trials to achieve fluency. Performance accuracy was significantly higher in the intervention group than the comparator group. Learning was retained at follow-up and persisted during distraction. Retrospective chart audit revealed no significant difference between the performance of the intervention group and a comparator group, comprised of more senior physicians, in the clinical setting, although the interpretation of these analyses are limited by a low number of lumbar punctures performed in the clinical setting.

CONCLUSIONS

The programme of simulation-based education with frequency building and precision teaching delivered produced behavioural fluency in lumbar puncture among paediatric trainees. Following the intervention, the performance of these participants was equivalent to, or greater than, that of senior paediatricians. This study supports the need for further research exploring the effectiveness of simulation-based education with precision teaching to train procedural skills to fluency, and the consideration of how best to explore the impact of these on patient outcomes.