Dataset Information

Does Test-enhanced Learning Improve Success Rates of Ultrasound-guided Peripheral Intravenous Insertion? A Randomized Controlled Trial.

ABSTRACT:

Introduction

Teaching procedural skills in medicine is time- and resource-intensive, and it is therefore important to determine which educational strategies are most effective. Test-enhanced learning (TEL) has been demonstrated to be effective in improving learner retention; however, there is little research evaluating the testing effect on the acquisition of procedural skills in medicine. The objective of this study was to examine the impact of TEL on learning ultrasound-guided intravenous (USG IV) insertion on a simulated model.

Methods

We conducted a prospective randomized controlled trial of medical students at a single tertiary care academic hospital. Participants were randomized to either the TEL group (TEG) or control group (CG). Each group received an USG peripheral IV teaching session that included a didactic portion and hands-on skills training. The training sessions were identical except that the TEG was informed at the outset that there would be an assessment at the end of the session. The TEG then received a formal assessment of the skill during the last 15 minutes of the session, whereas the CG had continued practice time. Subjects in both groups were evaluated 10-14 days later to compare skill performance using a simulation-based assessment tool consisting of a global rating scale (GRS) and checklist items.

Results

Thirty medical students completed the study, 15 in the TEG and 15 in the CG. There were no significant differences between the two groups at baseline based on year of medical training or prior IV or ultrasound experience. The overall procedural success rate was 93.3% (95% CI = 79.0%-100.0%) in the TEG and 80.0% (95% CI = 57.1%-100%) in the CG (p = 0.60). The first-attempt failure rate was 13.3% (95% CI = 0.0%-32.8%) in the TEG and 33.3% (95% CI = 6.3%-60.4%) in the CG (p = 0.39). There were no statistically significant differences between the means of the GRS (TEG = 4.7, CG = 4.2; p = 0.53, r = 0.11) or checklist scores (TEG = 78.6%, CG = 75.3%; p = 0.20, r = 0.24).

Conclusions

In this study of novice learners, both TEL with structured practice and structured practice alone lead to high success rates performing USG IV insertion on a simulated model. While we noted a trend toward higher procedural success rates and lower first-attempt failure rates in the TEG, these did not meet statistical significance. Further studies with larger sample sizes are required to determine whether the beneficial effects of TEL can be transferred to procedural skills teaching.

SUBMITTER: Slomer A

PROVIDER: S-EPMC6001601 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature

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Does Test-enhanced Learning Improve Success Rates of Ultrasound-guided Peripheral Intravenous Insertion? A Randomized Controlled Trial.

Slomer Adam A Chenkin Jordan J

AEM education and training 20170710 4

<h4>Introduction</h4>Teaching procedural skills in medicine is time- and resource-intensive, and it is therefore important to determine which educational strategies are most effective. Test-enhanced learning (TEL) has been demonstrated to be effective in improving learner retention; however, there is little research evaluating the testing effect on the acquisition of procedural skills in medicine. The objective of this study was to examine the impact of TEL on learning ultrasound-guided intraven ...[more]

PMID: 30051049

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Project description:Introduction:The peripheral internal jugular (IJ), also called the "easy IJ," is an alternative to peripheral venous access reserved for patients with difficult intravenous (IV) access. The procedure involves placing a single-lumen catheter in the IJ vein under ultrasound (US) guidance. As this technique is relatively new, the details regarding the ease of the procedure, how exactly it should be performed, and the safety of the procedure are uncertain. Our primary objective was to determine the success rate for peripheral IJ placement. Secondarily, we evaluated the time needed to complete the procedure and assessed for complications. Methods:This was a prospective, single-center study of US-guided peripheral IJ placement using a 2.5-inch, 18-gauge catheter on a convenience sample of patients with at least two unsuccessful attempts at peripheral IV placement by nursing staff. Peripheral IJ lines were placed by emergency medicine (EM) attending physicians and EM residents who had completed at least five IJ central lines. All physicians who placed lines for the study watched a 15-minute lecture about peripheral IJ technique. A research assistant monitored each line to assess for complications until the patient was discharged. Results:We successfully placed a peripheral IJ in 34 of 35 enrolled patients (97.1%). The median number of attempts required for successful cannulation was one (interquartile range (IQR): 1 to 2). The median time to successful line placement was 3 minutes and 6 seconds (IQR: 59 seconds to 4 minutes and 14 seconds). Two lines failed after placement, and one of the 34 successfully placed peripheral IJ lines (2.9%) had a complication - a local hematoma. There were, however, no arterial punctures or pneumothoraces. Although only eight of 34 lines were placed using sterile attire, there were no line infections. Conclusion:Our research adds to the growing body of evidence supporting US-guided peripheral internal jugular access as a safe and convenient procedure alternative for patients who have difficult IV access.

Project description:ObjectivesThis study aimed to identify the incidence of and factors associated with peripheral intravenous catheter/cannula (PIVC) first time insertion success (FTIS) in the emergency department (ED).DesignProspective cohort study.SettingTwo tertiary EDs in Western Australia.Participants879 ED patients.Primary outcomeTo identify factors affecting FTIS using univariate and multivariate logistic regression modelling. We created four models: patient factors only; clinician factors only; products and technology factors only and all factors model. We assessed each model's performance using area under the receiver operating characteristic curve.ResultsA total of 1201 PIVCs were inserted in 879 patients. The mean age was 60.3 (SD 22) years with slightly more females (52%). The FTIS rate was 73%, with 128 (15%) requiring a second attempt and 83 (9%) requiring three or more attempts. A small percentage (3%) had no recorded number of subsequent attempts. FTIS was related to the following patient factors: age (for a 1-year increase in age: OR 0.99, 95% CI 0.983 to 0.998; p=0.0097); and target vein palpability: (always palpable vs never palpable: OR 3.53 95% CI 1.64 to 7.60; only palpable with tourniquet vs never palpable: OR 2.20, 95% CI 1.06 to 4.57; p=0.0014). Clinician factors related to FTIS include: clinicians with greater confidence (p<0.0001) and insertion experience (301-1000 vs <301: OR 1.54, 95% CI 1.02 to 2.34; >1000 vs <301: OR 2.07, 95% CI 1.41 to 3.04; p=0.0011). The final all factors model combining patient factors; clinician factors and product and technology factors has greater discriminative ability than specific factors models. It has a sensitivity of 74.26%, specificity of 57.69%, positive predictive value of 82.87% and negative predictive value of 44.85%.ConclusionA clinical decision, matching patients who have no palpable veins and are older, with clinicians with greater confidence and experience, will likely improve FTIS.Trialregistration numberANZCTRN12615000588594; Results.

Dataset Information

Does Test-enhanced Learning Improve Success Rates of Ultrasound-guided Peripheral Intravenous Insertion? A Randomized Controlled Trial.

Introduction

Methods

Results

Conclusions

Publications

Does Test-enhanced Learning Improve Success Rates of Ultrasound-guided Peripheral Intravenous Insertion? A Randomized Controlled Trial.

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