Lack of standardization and faculty development in pediatric colonoscopy: A qualitative study.

A standard curriculum for pediatric colonoscopy training has neither been required nor universally implemented in North American fellowship programs. This qualitative study assessed the needs of colonoscopy training in pediatric gastroenterology to determine the standardized components of procedural teaching. Focus groups with pediatric gastroenterology attendings, fellows, procedural nurses, and interviews with advanced endoscopists, all practicing at a single institution, were conducted between March and June 2018. Data were analyzed using thematic analysis principles. Four themes emerged: (1) lack of standardization of colonoscopy performance, (2) lack of professional development of procedure teaching skills, (3) need for teaching behaviors that promote learner's performance, and (4) barriers to effective teaching and learning. A conceptual framework was created for developing a standardized "train-the-trainer" curriculum. Our needs assessment supports expansion of efforts to make this comprehensive training available to all pediatric gastroenterologists involved in procedure teaching.

Predictors of enteral tube dependence in pediatric esophageal atresia.

Children with esophageal atresia (EA) may require enteral tube feedings in infancy and a subset experience ongoing feeding difficulties and enteral tube dependence. Predictors of enteral tube dependence have never been systematically explored in this population. We hypothesized that enteral tube dependence is multifactorial in nature, with likely important contributions from anastomotic stricture. Cross-sectional clinical, feeding, and endoscopic data were extracted from a prospectively collected database of endoscopies performed in EA patients between August 2019 and August 2021 at an international referral center for EA management. Clinical factors known or hypothesized to contribute to esophageal dysphagia, oropharyngeal dysphagia, or other difficulties in meeting caloric needs were incorporated into regression models for statistical analysis. Significant predictors of enteral tube dependence were statistically identified. Three-hundred thirty children with EA were eligible for analysis. Ninety-seven were dependent on enteral tube feeds. Younger age, lower weight Z scores, long gap atresia, neurodevelopmental risk factor(s), significant cardiac disease, vocal fold movement impairment, and smaller esophageal anastomotic diameter were significantly associated with enteral tube dependence in univariate analyses; only weight Z scores, vocal fold movement impairment, and anastomotic diameter retained significance in a multivariable logistic regression model. In the current study, anastomotic stricture is the only potentially modifiable significant predictor of enteral tube dependence that is identified.

Feeding and Growth Outcomes in Infants with Type C Esophageal Atresia Who Undergo Early Primary Repair.

OBJECTIVES: To describe growth and feeding outcomes in patients with type C esophageal atresia who underwent early primary repair and to identify predictors for poor growth. STUDY DESIGN: This single-center, retrospective, cohort study included all patients with type C esophageal atresia who underwent early primary repair from 2013 to 2019. Weight-for-age z score (WAZ) was calculated at birth, and every 6 months until 3 years postoperatively. Longitudinal median regression was used to evaluate WAZ over time. A multivariable logistic regression model explored predictors of growth outcomes. RESULTS: Of 46 infants who met the inclusion criteria, 72% were term. The median age at repair was 1.5 days of life (IQR, 1-2 days of life) and the hospital length of stay was 20 days (IQR-14, 30 days). Two patients had esophageal leak (4.3%). The median WAZ at birth was below average (-0.72; IQR, -1.37 to -0.40), but improved to reach average by 3 years (-0.025; IQR, -0.85 to 0.97, P < .001). At discharge, 72% of patients were receiving full oral nutrition, which improved to 95% by 3 years. The only independent predictor of poor growth at 1 year (WAZ < -1 [33%]) was WAZ at discharge (P = .02). CONCLUSIONS: Infants with esophageal atresia who undergo early primary repair are capable of achieving standard growth curves by 3 years of age. However, poor discharge WAZ score was predictive of poor WAZ score at 1 year. Efforts to identify at-risk patients and institute targeted inpatient and outpatient nutrition interventions are needed to improve their growth trajectory.

Predictors and Outcomes of Fully Covered Stent Treatment for Anastomotic Esophageal Strictures in Esophageal Atresia.

BACKGROUND AND AIMS: Anastomotic strictures following surgical repair is one of the most common complications in esophageal atresia (EA). The utility of esophageal stenting to treat anastomotic esophageal strictures in pediatrics is unclear. Our primary aim was to evaluate whether esophageal stenting, in conjunction with dilation and other endoscopic therapies, prevented surgical stricture resection (SR). Our secondary aims were to evaluate predictors of successful esophageal stenting and evaluate adverse events from stent placement. METHODS: A retrospective review of pediatric patients with EA complicated by esophageal strictures was performed. The change in stricture diameter in millimeters from the time of stent removal to subsequent endoscopy was defined as delta diameter (ΔD). A receiver operating characteristic (ROC) curve analysis was performed to determine the discriminatory ability of ΔD. Youden J index was used to identify optimal cutoff-point in predicting stent success. A univariate and multivariate analysis were done to assess predictors of success. RESULT: Forty-nine esophageal anastomoses were stented to treat esophageal strictures. Stents prevented SR in 41% of patients. ROC curve analysis utilizing Youden J index identified ΔD of ≤4 mm (area under the curve = 0.790; 95% confidence interval: 0.655-0.924; P < 0.001) as the optimal cutoff point in differentiating stent success. The most common adverse events were erosions/ulcerations, granulation tissue formation, and vomiting/retching. CONCLUSION: Stent therapy in preventing SR at the site of EA repair was successful in 41% in our population with good long term follow-up. The most significant predictor of success in this study was the change in luminal diameter (≤4 mm) at initial poststent follow-up.

Radiographic assessment of traction-induced esophageal growth and traction-related complications of the Foker process for treatment of long-gap esophageal atresia.

BACKGROUND: Radiographic assessment of esophageal growth in long-gap esophageal atresia while on traction and associated traction-related complications have not been described. OBJECTIVE: To demonstrate how chest radiography can estimate esophageal position while on traction and to evaluate radiography's utility in diagnosing certain traction system complications. MATERIALS AND METHODS: In this retrospective evaluation of portable chest radiographs obtained in infants with long-gap esophageal atresia who underwent the Foker process between 2014 and 2020, we assessed distances between the opposing trailing clips (esophageal gap) and the leading and trailing clips for each esophageal segment on serial radiographs. Growth during traction was estimated using longitudinal random-effects regression analysis to account for multiple chest radiograph measurements from the same child. RESULTS: Forty-three infants (25 male) had a median esophageal gap of 4.5 cm. Median traction time was 14 days. Median daily radiographic esophageal growth rate for both segments was 2.2 mm and median cumulative growth was 23.6 mm. Traction-related complications occurred in 13 (30%) children with median time of 8 days from traction initiation. Daily change >12% in leading-to trailing clip distance demonstrated 86% sensitivity and 92% specificity for indicating traction-related complications (area under the curve [AUC] 0.853). Cumulative change >30% in leading- to trailing-clip distance during traction was 85% sensitive and 85% specific for indicating traction complications (AUC 0.874). CONCLUSION: Portable chest radiograph measurements can serve as a quantitative surrogate for esophageal segment position in long-gap esophageal atresia. An increase of >12% between two sequential chest radiographs or >30% increase over the traction period in leading- to trailing-clip distance is highly associated with traction system complications.

Impact of the COVID-19 pandemic on the clinical training of last year medical students in Mexico: a cross-sectional nationwide study.

BACKGROUND: The COVID-19 pandemic has brought unprecedented changes to medical education. However, no data are available regarding the impact the pandemic may have on medical training in Mexico. The aim of our study was to evaluate and identify the medical school students' perceptions of the changes in their clinical training due to the pandemic in Mexico. METHODS: This was a cross-sectional study where a previous validated online survey was translated and adapted by medical education experts and applied to senior medical students from March to April of 2021. The 16-item questionnaire was distributed online combining dichotomous, multiple-choice, and 5-point Likert response scale questions. Descriptive and multivariate analyses were performed to compare the student's perceptions between public and private schools. RESULTS: A total of 671 responses were included in the study period. Most participants were from public schools (81%) and female (61%). Almost every respondent (94%) indicated it was necessary to obtain COVID-19 education, yet only half (54%) received such training. Students in private schools were less likely to have their clinical instruction canceled (53% vs. 77%, p = 0.001) and more likely to have access to virtual instruction (46% vs. 22%, p = 0.001) when compared to students from public schools. Four out of every five students considered their training inferior to that of previous generations, and most students (82%) would consider repeating their final year of clinical training. CONCLUSIONS: The impact of the COVID-19 on medical education in Mexico has been significant. Most final-year medical students have been affected by the cancellation of their in-person clinical instruction, for which the majority would consider repeating their final year of training. Efforts to counterbalance this lack of clinical experience with virtual or simulation instruction are needed.

Rules Are Meant to Be Broken: Examining the "Rule of 3" for Esophageal Dilations in Pediatric Stricture Patients.

BACKGROUND AND AIMS: The "rule of 3" is a 40-year-old expert opinion that suggests dilating an esophageal stricture more than 3 mm is unsafe. Few studies have evaluated this tenet, and do not specify how much larger than 3 mm is reasonable. Our aim was to determine the optimal point for maximum dilation diameter with acceptable risk in a pediatric population. METHODS: A retrospective review in pediatric patients with esophageal strictures was performed. The number of millimeters the stricture was dilated, defined as delta dilation diameter (ΔDD), was determined by subtracting the initial stricture diameter from the diameter of the largest balloon used. Receiver operating characteristic curve analysis was used to evaluate the discriminatory ability of ΔDD. Youden J index was used to identify optimal cut-point in predicting perforation. RESULTS: Two hundred eighty-four patients underwent 1384 balloon dilations. Overall perforation rate was 1.66%. There were 8 perforations in 1075 dilations with ΔDD ≤5 mm (0.7%) and 15 perforations in 309 dilations with ΔDD >5 mm (4.9%). Youden J index found an optimal cutoff to be at a ΔDD of ≤5 mm. The cumulative rate of perforation for all dilations ≤5 mm was 0.74% whereas the cumulative risk of perforation for all dilations ≥6 mm was 4.85% (P < 0.001). CONCLUSIONS: Balloon dilations that expand the initial esophageal anastomosis ≤5 mm in a pediatric population appear to not unduly increase the risk of perforation. Further prospective studies are needed to further investigate the potential for a new rule of 5 for balloon dilation.

Intralesional Steroid Injection Therapy for Esophageal Anastomotic Stricture Following Esophageal Atresia Repair.

OBJECTIVES: The role of intralesional steroid injection (ISI) in the treatment of anastomotic stricture in patients with esophageal atresia remains unclear. The aim of this study was to evaluate the efficacy and safety of ISI. METHODS: A total of 158 patients with esophageal atresia with at least 1 ISI for the treatment of esophageal anastomotic stricture between 2010 and 2017 were identified. The change in stricture diameter (ΔD) was compared between procedures with dilation alone (ISI-) and dilation with steroid injection (ISI+). RESULTS: A total of 1055 balloon dilations were performed (452 ISI+). The median ΔD was significantly greater in the ISI+ group: 1 mm (interquartile range [IQR] 0, 3) versus 0 mm (IQR -1, 1.5) (P < 0.0001). The ISI+ group had greater percentage of improved diameter (P < 0.0001) and lesser percentages of unchanged and decreased diameters at subsequent endoscopy (P = 0.0009, P = 0.003). Multivariable logistic regression confirmed the significance of ISI on increasing the likelihood of improved stricture diameter with an adjusted odds ratio of 3.24 (95% confidence interval: 2.15-4.88) (P < 0.001). The ΔD for the first 3 ISI+ procedures was greater than the ΔD for subsequent ISI+ procedures: 1 mm (IQR 0, 3) versus 0.5 mm (IQR-1.25, 2) (P = 0.001). There was no difference in perforation incidence between ISI+ and ISI- groups (P = 0.82). CONCLUSIONS: ISI with dilation was well tolerated and improved anastomotic stricture diameter more than dilation alone. The benefit of ISI over dilation alone was limited to the first 3 ISI procedures.

Utility of repeated therapeutic endoscopies for pediatric esophageal anastomotic strictures.

Anastomotic stricture is a common complication of esophageal atresia (EA) repair. Such strictures are managed with dilation or other therapeutic endoscopic techniques such as steroid injections, stenting, or endoscopic incisional therapy (EIT). In situations where endoscopic therapy is unsuccessful, patients with refractory strictures may require surgical stricture resection; however, the point at which endoscopic therapy should be abandoned in favor of repeat thoracotomy is unclear. We hypothesized that increasing numbers of therapeutic endoscopies are associated with increased likelihood of stricture resection. We retrospectively reviewed the records of patients with EA who had an initial surgery at our institution resulting in an esophago-esophageal anastomosis between August 2005 and May 2019. Up to 2 years of post-surgery endoscopy data were collected, including exposure to balloon dilation, intralesional steroid injection, stenting, and EIT. Primary outcome was need for stricture resection. Receiver operating characteristic (ROC) curve analysis and univariate and multivariable Cox proportional hazards regression analyses were performed. There were 171 patients who met inclusion criteria. The number of therapeutic endoscopies was a moderate predictor of stricture resection by ROC curve analysis (AUC = 0.720, 95% CI 0.617-0.823). With increasing number of therapeutic endoscopies, the probability of remaining free from stricture resection decreased. By Youden's J index, a cutoff of ≥7 therapeutic endoscopies was optimal for discriminating between patients who had versus did not have stricture resection, though an absolute majority of patients (≥50%) remained free of stricture resection at each number of therapeutic endoscopies through 12 endoscopies. Significant predictors of needing stricture resection by univariate regression included ≥7 therapeutic endoscopies, Foker surgery for long-gap EA, fundoplication, history of esophageal leak, and length of stricture ≥10 mm. Multivariate analysis identified only history of leak as statistically significant, though this regression was underpowered. The utility of repeated therapeutic endoscopies may diminish with increasing numbers of endoscopic therapeutic attempts, with a cutoff of ≥7 endoscopies identified by our single-center experience as our statistically optimal discriminator between having stricture resection versus not; however, a majority of patients remained free of stricture resection well beyond 7 therapeutic endoscopies. Though retrospective, this study supports that repeated therapeutic endoscopies may have clinical utility in sparing surgical stricture resection. Esophageal leak is identified as a significant predictor of needing subsequent stricture resection. Prospective study is needed.

Swallowing Dysfunction and Quality of Life in Adults With Surgically Corrected Esophageal Atresia/Tracheoesophageal Fistula as Infants: Forty Years of Follow-up.

OBJECTIVES: The aim of the study was to evaluate and study the full spectrum of swallowing dysfunction and long-term disease-specific outcomes in adults with surgically corrected esophageal atresia/tracheaesophageal fistula (EA/TEF). BACKGROUND: Long-term outcomes for adults who underwent EA/TEF repair because infants are lacking. METHODS: We developed a disease-specific swallowing dysfunction questionnaire (SDQ) to assess swallowing dysfunction and quality of life (QOL) of adult patients with surgically corrected EA/TEF. Patients were surveyed with the newly developed SDQ and with a generic QOL tool (36-Item Short Form Health Survey). RESULTS: Ninety-seven patients underwent EA/TEF repair at our institution from 1950 to 1997. Forty-six (61%) patients completed the survey. Median follow-up was 40 years (range 18-63). Results suggest that some degree of swallowing dysfunction is common (82%), worse with hard consistencies (70%), and is associated with frequently needing sips of liquids to facilitate swallowing (75%). The presence of swallowing dysfunction was, however, often mild and did not seem to affect patients' food choices, or their day-to-day activities. QOL did not differ from that of the general population, regardless of the presence or absence of swallowing dysfunction. The presence of gastroesophageal reflux disease (26%), esophageal stricture (39%), or both (15%) does not account for all situations of swallowing dysfunction, nor does it significantly impact QOL. CONCLUSIONS: Swallowing dysfunction is common in adults who underwent EA/TEF repair as infants; however, patients reported minimal effect on QOL or day-to-day activities. The SDQ is a valid and reliable tool to measure the full spectrum of swallowing dysfunction in the EA/TEF repair population.

Laparoscopic skill assessment of practicing surgeons prior to enrollment in a surgical trial of a new laparoscopic procedure.

BACKGROUND: Outcomes of surgical trials hinge on surgeon selection and their underlying expertise. Assessment of expertise is paramount. We investigated whether surgeons' performance measured by the fundamentals of laparoscopic surgery (FLS) assessment program could predict their performance in a surgical trial. METHODS: As part of a prospective multi-institutional study of minimally invasive inguinal lymphadenectomy (MILND) for melanoma, surgical oncologists with no prior MILND experience underwent pre-trial FLS assessment. Surgeons completed MILND training, began enrolling patients, and submitted videos of each MILND case performed. Videos were scored with the global operative assessment of laparoscopic skills (GOALS) tool. Associations between baseline FLS scores and participant's trial performance metrics were assessed. RESULTS: Twelve surgeons enrolled patients; their median total baseline FLS score was 332 (range 275-380, max possible 500, passing >270). Participants enrolled 87 patients in the study (median 6 per surgeon, range 1-24), of which 72 (83%) videos were adequate for scoring. Baseline GOALS score was 17.1 (range 9.6-21.2, max possible score 30). Inter-rater reliability was excellent (ICC = 0.85). FLS scores correlated with improved GOALS scores (r = 0.57, p = 0.05) and with decreased operative time (r = -0.6, p = 0.02). No associations were found with the degree of patient recruitment (r = 0.02, p = 0.7), lymph node count (r = 0.01, p = 0.07), conversion rate (r = -0.06, p = 0.38) or major complications(r = -0.14, p = 0.6). CONCLUSIONS: FLS skill assessment of surgeons prior to their enrollment in a surgical trial is feasible. Although better FLS scores predicted improved operative performance and operative time, other trial outcome measures showed no difference. Our findings have implications for the documentation of laparoscopic expertise of surgeons in practice and may allow more appropriate selection of surgeons to participate in clinical trials.

Validity evidence for the Fundamentals of Laparoscopic Surgery (FLS) program as an assessment tool: a systematic review.

BACKGROUND: The Fundamentals of Laparoscopic Surgery (FLS) program uses five simulation stations (peg transfer, precision cutting, loop ligation, and suturing with extracorporeal and intracorporeal knot tying) to teach and assess laparoscopic surgery skills. We sought to summarize evidence regarding the validity of scores from the FLS assessment. METHODS: We systematically searched for studies evaluating the FLS as an assessment tool (last search update February 26, 2013). We classified validity evidence using the currently standard validity framework (content, response process, internal structure, relations with other variables, and consequences). RESULTS: From a pool of 11,628 studies, we identified 23 studies reporting validity evidence for FLS scores. Studies involved residents (n = 19), practicing physicians (n = 17), and medical students (n = 8), in specialties of general (n = 17), gynecologic (n = 4), urologic (n = 1), and veterinary (n = 1) surgery. Evidence was most common in the form of relations with other variables (n = 22, most often expert-novice differences). Only three studies reported internal structure evidence (inter-rater or inter-station reliability), two studies reported content evidence (i.e., derivation of assessment elements), and three studies reported consequences evidence (definition of pass/fail thresholds). Evidence nearly always supported the validity of FLS total scores. However, the loop ligation task lacks discriminatory ability. CONCLUSION: Validity evidence confirms expected relations with other variables and acceptable inter-rater reliability, but other validity evidence is sparse. Given the high-stakes use of this assessment (required for board eligibility), we suggest that more validity evidence is required, especially to support its content (selection of tasks and scoring rubric) and the consequences (favorable and unfavorable impact) of assessment.

Nuss bar migrations: occurrence and classification.

BACKGROUND: Pectus excavatum results from dorsal deviation of the sternum causing narrowing of the anterior-posterior diameter of the chest. It can result in significant cosmetic deformities and cardiopulmonary compromise if severe. The Nuss procedure is a minimally invasive technique that involves placing a thin horizontally oriented metal bar below the dorsal sternal apex for correction of the pectus deformity. OBJECTIVE: To identify the frequency and types of Nuss bar migrations, to present a new categorization of bar migrations, and to present examples of true migrations and pseudomigrations. MATERIALS AND METHODS: We retrospectively reviewed the electronic medical records and all pertinent radiologic studies of 311 pediatric patients who underwent a Nuss procedure. We evaluated the frequency and type of bar migrations. RESULTS: Bar migration was demonstrated in 23 of 311 patients (7%) and occurred within a mean period of 26 days after surgery. Bar migrations were subjectively defined as deviation of the bar from the position demonstrated on the immediate postoperative radiographs and categorized as superior, inferior, rotation, lateral or flipped using a new classification system. Sixteen of the 23 migrations required re-operation. CONCLUSION: Nuss bar migration can be diagnosed with careful evaluation of serial radiographs. Nuss bar migration has a wide variety of appearances and requires exclusion of pseudomigration resulting from changes in patient positioning between radiologic examinations.

Self-regulated learning in simulation-based training: a systematic review and meta-analysis.

CONTEXT: Self-regulated learning (SRL) requires an active learner who has developed a set of processes for managing the achievement of learning goals. Simulation-based training is one context in which trainees can safely practise learning how to learn. OBJECTIVES: The purpose of the present study was to evaluate, in the simulation-based training context, the effectiveness of interventions designed to support trainees in SRL activities. We used the social-cognitive model of SRL to guide a systematic review and meta-analysis exploring the links between instructor supervision, supports or scaffolds for SRL, and educational outcomes. METHODS: We searched databases including MEDLINE and Scopus, and previous reviews, for material published until December 2011. Studies comparing simulation-based SRL interventions with another intervention for teaching health professionals were included. Reviewers worked independently and in duplicate to extract information on learners, study quality and educational outcomes. We used random-effects meta-analysis to compare the effects of supervision (instructor present or absent) and SRL educational supports (e.g. goal-setting study guides present or absent). RESULTS: From 11,064 articles, we included 32 studies enrolling 2482 trainees. Only eight of the 32 studies included educational supports for SRL. Compared with instructor-supervised interventions, unsupervised interventions were associated with poorer immediate post-test outcomes (pooled effect size: -0.34, p = 0.09; n = 19 studies) and negligible effects on delayed (i.e. > 1 week) retention tests (pooled effect size: 0.11, p = 0.63; n = 8 studies). Interventions including SRL supports were associated with small benefits compared with interventions without supports on both immediate post-tests (pooled effect size: 0.23, p = 0.22; n = 5 studies) and delayed retention tests (pooled effect size: 0.44, p = 0.067; n = 3 studies). CONCLUSIONS: Few studies in the simulation literature have designed SRL training to explicitly support trainees' capacity to self-regulate their learning. We recommend that educators and researchers shift from thinking about SRL as learning alone to thinking of SRL as comprising a shared responsibility between the trainee and the instructional designer (i.e. learning using designed supports that help prepare individuals for future learning).

Debriefing for technology-enhanced simulation: a systematic review and meta-analysis.

OBJECTIVES: Debriefing is a common feature of technology-enhanced simulation (TES) education. However, evidence for its effectiveness remains unclear. We sought to characterise how debriefing is reported in the TES literature, identify debriefing features that are associated with improved outcomes, and evaluate the effectiveness of debriefing when combined with TES. METHODS: We systematically searched databases, including MEDLINE, EMBASE and Scopus, and reviewed previous bibliographies for original comparative studies investigating the use of TES with debriefing in training health care providers. Reviewers, in duplicate, evaluated study quality and abstracted information on instructional design, debriefing and outcomes. Effect sizes (ES) were pooled using random-effects meta-analysis. RESULTS: From 10 903 potentially eligible studies, we identified 177 studies (11 511 learners) that employed debriefing as part of TES. Key characteristics of debriefing (e.g. duration, educator presence and characteristics, content, structure/method, timing, use of video) were usually incompletely reported. A meta-analysis of four studies demonstrated that video-assisted debriefing has negligible and non-significant effects for time skills (ES = 0.10) compared with non-video-assisted debriefing. Meta-analysis demonstrated non-significant effects in favour of expert modelling with short debriefing in comparison with long debriefing (ES range = 0.21-0.74). Among studies comparing terminal with concurrent debriefing, results were variable depending on outcome measures and the context of training (e.g. medical resuscitation versus technical skills). Eight additional studies revealed insight into the roles of other debriefing-related factors (e.g. multimedia debriefing, learner-led debriefing, debriefing duration, content of debriefing). Among studies that compared simulation plus debriefing with no intervention, pooled ESs were favourable for all outcomes (ES range = 0.28-2.16). CONCLUSIONS: Limited evidence suggests that video-assisted debriefing yields outcomes similar to those of non-video-assisted debriefing. Other debriefing design features show mixed or non-significant results. As debriefing characteristics are usually incompletely reported, future debriefing research should describe all the key debriefing characteristics along with their associated descriptors.

Feedback for simulation-based procedural skills training: a meta-analysis and critical narrative synthesis.

Although feedback has been identified as a key instructional feature in simulation based medical education (SBME), we remain uncertain as to the magnitude of its effectiveness and the mechanisms by which it may be effective. We employed a meta-analysis and critical narrative synthesis to examine the effectiveness of feedback for SBME procedural skills training and to examine how it works in this context. Our results demonstrate that feedback is moderately effective during procedural skills training in SBME, with a pooled effect size favoring feedback for skill outcomes of 0.74 (95 % CI 0.38-1.09; p < .001). Terminal feedback appears more effective than concurrent feedback for novice learners' skill retention. Multiple sources of feedback, including instructor feedback, lead to short-term performance gains although data on long-term effects is lacking. The mechanism by which feedback may be operating is consistent with the guidance hypothesis, with more research needed to examine other mechanisms such as cognitive load theory and social development theory.

What counts as validity evidence? Examples and prevalence in a systematic review of simulation-based assessment.

Ongoing transformations in health professions education underscore the need for valid and reliable assessment. The current standard for assessment validation requires evidence from five sources: content, response process, internal structure, relations with other variables, and consequences. However, researchers remain uncertain regarding the types of data that contribute to each evidence source. We sought to enumerate the validity evidence sources and supporting data elements for assessments using technology-enhanced simulation. We conducted a systematic literature search including MEDLINE, ERIC, and Scopus through May 2011. We included original research that evaluated the validity of simulation-based assessment scores using two or more evidence sources. Working in duplicate, we abstracted information on the prevalence of each evidence source and the underlying data elements. Among 217 eligible studies only six (3 %) referenced the five-source framework, and 51 (24 %) made no reference to any validity framework. The most common evidence sources and data elements were: relations with other variables (94 % of studies; reported most often as variation in simulator scores across training levels), internal structure (76 %; supported by reliability data or item analysis), and content (63 %; reported as expert panels or modification of existing instruments). Evidence of response process and consequences were each present in <10 % of studies. We conclude that relations with training level appear to be overrepresented in this field, while evidence of consequences and response process are infrequently reported. Validation science will be improved as educators use established frameworks to collect and interpret evidence from the full spectrum of possible sources and elements.

Validation of a PHIS Esophageal Atresia and Tracheoesophageal Fistula Cohort in ICD-10.

OBJECTIVE: Validation of a contemporary International Classification of Diseases, 10th Revision, Clinical Modification (ICD-10-CM) congenital esophageal atresia/tracheoesophageal atresia (EA/TEF) cohort in the Pediatric Health Information System (PHIS) database. STUDY DESIGN: Database study, validation. SETTING: Tertiary care center. METHODS: Search methods used to validate an ICD-9-CM EA/TEF cohort in PHIS were modified for ICD-10-CM. A retrospectively and prospectively maintained clinical database at a single high-volume EA/TEF center was used for comparison. Patients treated between October 1, 2015 and July 31, 2022 were included. Searches progressively narrowed the cohort by ICD-10-CM diagnosis codes, expansion to include incorrectly coded as 'iatrogenic, age less than 30 days, and use of at least 1 ICD-10-CM procedure code. Results of PHIS data and institution data were compared for accuracy. RESULTS: The most refined search of PHIS and the EA/TEF clinical database yielded 93 and 84 patients, respectively. The sensitivity was 99% and positive predictive value was 94%. A PHIS search using these methods and encompassing 49 children's hospitals yielded an EA/TEF cohort of 2479 patients. CONCLUSION: We present a validated search method in the PHIS database to identify a high-fidelity cohort of EA/TEF patients for multi-institutional study. We have demonstrated that a carefully maintained clinical database may be used to validate cohorts in PHIS. This cohort allows for improved practice variability and outcomes study of EA/TEF patients. Similar methods may be employed to generate other rare disease cohorts in PHIS. LEVEL OF EVIDENCE: Level 4.

The History and Legacy of the Foker Process for the Treatment of Long Gap Esophageal Atresia.

Historically, children afflicted with long gap esophageal atresia (LGEA) had few options, either esophageal replacement or a life of gastrostomy feeds. In 1997, John Foker from Minnesota revolutionized the treatment of LGEA. His new procedure focused on "traction-induced growth" when the proximal and distal esophageal segments were too far apart for primary repair. Foker's approach involved placement of pledgeted sutures on both esophageal pouches connected to an externalized traction system which could be serially tightened, allowing for tension-induced esophageal growth and a delayed primary repair. Despite its potential, the Foker process was received with criticism and disbelief, and to this day, controversy remains regarding its mechanism of action - esophageal growth versus stretch. Nonetheless, early adopters such as Rusty Jennings of Boston embraced Foker's central principle that "one's own esophagus is best" and was instrumental to the implementation and rise in popularity of the Foker process. The downstream effects of this emphasis on esophageal preservation would uncover the need for a focused yet multidisciplinary approach to the many challenges that EA children face beyond "just the esophagus", leading to the first Esophageal and Airway Treatment Center for children. Consequently, the development of new techniques for the multidimensional care of the LGEA child evolved such as the posterior tracheopexy for associated tracheomalacia, the supercharged jejunal interposition, as well as minimally invasive internalized esophageal traction systems. We recognize the work of Foker and Jennings as key catalysts of an era of esophageal preservation and multidisciplinary care of children with EA.