Evaluation of Clinical Endobronchial Ultrasound Skills Following Clinical Versus Simulation Training.

Study Overview
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Brief Summary
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Bronchoscopy is a procedure whereby a small flexible camera is used to inspect and biopsy abnormalities in the lungs. Linear endobronchial ultrasound with transbronchial needle aspiration (EBUS-TBNA) is a revolutionary diagnostic pulmonary procedure that allows visualization and safe, accurate biopsies of structures in and around the lungs during bronchoscopy. EBUS-TBNA can be challenging to learn. Historically, bronchoscopy has been taught using an apprenticeship model, whereby trainees practice on patients. With the introduction of computer bronchoscopy simulators, trainees can now obtain basic bronchoscopy skills by practicing on the simulator, rather than practicing on patients. This study aims to compare trainee EBUS-TBNA performance during actual procedures on patients, following training with a computer EBUS-TBNA simulator versus conventional clinical EBUS-TBNA training (trainees taught by practicing on patients). Our hypothesis is that the skills learned using a computer EBUS-TBNA simulator are transferable to clinical EBUS-TBNA performance, meaning that using a computer EBUS-TBNA simulator for training is just as good as learning these skills by practicing on patients. The use of EBUS-TBNA simulators for training could have the advantage of minimizing the burden of procedural learning on patients.

Detailed Description
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Learners in Group 1 undergo training on the EBUS-TBNA simulator before performing EBUS-TBNA on the study patients. Learners in Group 2 completed a one month clinical Interventional Pulmonary Medicine rotation. During this rotation, they completed ≥15 and ≤25 EBUS-TBNA clinical procedures with an Interventional Pulmonologist experienced in EBUS-TBNA. Learners in both groups receive a standard EBUS-TBNA knowledge review process before their patient care EBUS-TBNA experience. This includes a series of oral questions and a written lymph node staging diagram which they need to correctly answer, prior to performing EBUS-TBNA on study patients. Learners in Group 2 complete this review process informally on a number of occasions during their Interventional Pulmonary Medicine rotations. Learners in Group 1 formally undergo this review process 5 times during the EBUS-TBNA simulation training. Bronchoscopy is performed utilizing a 1T-160 Olympus video bronchoscope (Olympus Canada, Markham, Canada) for the airway examination and a BF-UC160F-OL8 (EBUS bronchoscope - Olympus Canada, Markham, Canada) for the EBUS-TBNA procedure. In order to standardize for differences in bronchoscopy method, a single attending Interventional Pulmonologist (IP) is responsible for performing all 16 bronchoscopies with the learners. The complete airway examination and any additional non-EBUS-TBNA samples are performed by the attending IP. All endobronchial ultrasound bronchoscopy performance metrics are recorded by another IP not involved in the procedure on a standard data sheet. EBUS-TBNA is performed by the learner with 3 specific goals: Intubation with the EBUS-TBNA bronchoscope. Lymph Node Ultrasound Examination. Identify 5 major lymph node stations (11R, 4R, 7, 4L, 11L). Sampling of two lymph nodes per patient. The order and location of lymph nodes was at the discretion of the attending IP. Following the biopsy of two lymph nodes stations by the learner, the attending IP completes the rest of the procedure, including any further biopsies that are necessary. The learner is expected to perform 3 successful passes in each of the two lymph nodes, with a total of 5 allowed attempts per lymph node station. The learner procedure time starts at the time of the first intubation attempt with the EBUS-TBNA bronchoscope, and finishes with the last biopsy of the second lymph node station. If other clinically important lymph nodes are present or if more than 3 successful aspirations are desired, the stopwatch is stopped while the attending IP performed the biopsies. Samples are placed in alcohol preservative and sent to the cytopathology lab as per our routine procedure. No indication as to group allocation is available to the clinical cytopathologist interpreting the samples. To be enrolled, patients and learners must give written informed consent. The EBUS-TBNA simulator used for this study is the AccuTouch Flexible Bronchoscopy Simulator (CAE Healthcare, Montreal, Canada), equipped with an EBUS-TBNA module. This simulator has been described in detail previously in the articles cited at the end of this ClinicalTrials.gov entry.

Official Title
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Evaluation of Clinical Endobronchial Ultrasound Skills Following Clinical Versus Simulation Training.

Conditions
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EBUS-TBNA Training Methods

Intervention / Treatment
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* Procedure: EBUS-TBNA


Participation Criteria
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Eligibility Criteria
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Patients: Inclusion Criteria: suspected lung cancer patients with mediastinal adenopathy at least 2 enlarged mediastinal or hilar lymph nodes (one >1.0 cm and one >1.5 cm in short axis on CT Chest, one of the lymph nodes must be in position 7 or 4R eighteen years of age or older Exclusion Criteria: Lack of informed consent any contraindication to bronchoscopy any significant severe co-morbidities (i.e. severe obstructive lung disease, active cardiac disease such as angina) Learners: Group 1 (EBUS-TBNA simulator training): Inclusion Criteria: pulmonary medicine trainees with >30 bronchoscopy procedures experience, >nine months of pulmonary fellowship training and no clinical EBUS-TBNA experience (n=4) Exclusion Criteria: lack of informed consent Group 2 (Clinical EBUS-TBNA training): Inclusion Criteria: pulmonary medicine trainees in the 2nd half of their final year of pulmonary training or recent graduates (within one year), with >50 bronchoscopy procedures experience who completed a one-month elective with the Interventional Pulmonary Medicine (IPM) service with ≥15 and ≤25 EBUS-TBNA procedures experience (n=4). Exclusion Criteria: lack of informed consent

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Group 1 (EBUS-TBNA simulator training)<br>Group 1 (EBUS-TBNA simulator training): pulmonary medicine trainees with >30 bronchoscopy procedures experience, >nine months of pulmonary fellowship training and no clinical EBUS-TBNA experience (n=4). | Procedure: EBUS-TBNA<br>* Endobronchial ultrasound with transbronchial needle aspiration (EBUS-TBNA) is a revolutionary diagnostic pulmonary procedure that allows visualization and safe, accurate biopsies of intra-thoracic structures during bronchoscopy. Patients enrolled in this study at the University of Calgary would have undergone this procedure regardless of being enrolled in this study. The purpose of the study was to prospectively compare the EBUS-TBNA performance of 2 groups of learners, performing EBUS-TBNA on patients, who had received to different methods of EBUS-TBNA training. Patients were randomly assigned to undergo bronchoscopy with a trainee from Group 1 or Group 2.<br>* Other names: - EBUS;|
| Group 2 (Clinical EBUS-TBNA training)<br>Group 2 (Clinical EBUS-TBNA training): pulmonary medicine trainees in the 2nd half of their final year of pulmonary training or recent graduates (within one year), with >50 bronchoscopy procedures experience who completed a one-month elective with the Interventional Pulmonary Medicine (IPM) service with ≥15 and ≤25 EBUS-TBNA procedures experience (n=4). | Procedure: EBUS-TBNA<br>* Endobronchial ultrasound with transbronchial needle aspiration (EBUS-TBNA) is a revolutionary diagnostic pulmonary procedure that allows visualization and safe, accurate biopsies of intra-thoracic structures during bronchoscopy. Patients enrolled in this study at the University of Calgary would have undergone this procedure regardless of being enrolled in this study. The purpose of the study was to prospectively compare the EBUS-TBNA performance of 2 groups of learners, performing EBUS-TBNA on patients, who had received to different methods of EBUS-TBNA training. Patients were randomly assigned to undergo bronchoscopy with a trainee from Group 1 or Group 2.<br>* Other names: - EBUS;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| total learner EBUS-TBNA procedure time/number of successful aspirations |  | patients followed for 2 months or until death - measured at patient EBUS-TBNA procedure | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| total learner EBUS-TBNA procedure time |  | patients followed for 2 months or until death - measured at patient EBUS-TBNA procedure | 
| time to intubation |  | patients followed for 2 months or until death - measured at patient EBUS-TBNA procedure | 
| lymph node ultrasound examination time |  | patients followed for 2 months or until death - measured at patient EBUS-TBNA procedure | 
| percentage of successful aspirations |  | patients followed for 2 months or until death - measured at patient EBUS-TBNA procedure | 
| number of intubation attempts |  | patients followed for 2 months or until death - measured at patient EBUS-TBNA procedure | 
| percentage of lymph node stations correctly identified during lymph node ultrasound examination |  | patients followed for 2 months or until death - measured at patient EBUS-TBNA procedure | 
| number of instructional comments required by the attending pulmonologist |  | patients followed for 2 months or until death - measured at patient EBUS-TBNA procedure | 
| sample adequacy |  | patients followed for 2 months or until death - measured at patient EBUS-TBNA procedure | 
| diagnostic yield |  | patients followed for 2 months or until death - measured at patient EBUS-TBNA procedure | 
| expert respiratory therapist subjective EBUS-TBNA technical skill assessment |  | patients followed for 2 months or until death - measured at patient EBUS-TBNA procedure | 
| total lymph node biopsy time |  | patients followed for 2 months or until death - measured at patient EBUS-TBNA procedure | 
| time to EBUS-TBNA intubation |  | patients followed for 2 months or until death - measured at patient EBUS-TBNA procedure | 
| number of unsuccessful biopsies per case | includes a list of reasons for unsuccessful biopsies: bronchoscope damage, contaminated sample, penetrating far side of lymph node, missing the lymph node, vascular puncture | patients followed for 2 months or until death - measured at patient EBUS-TBNA procedure | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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endobronchial ultrasound, bronchoscopy, education, interventional bronchoscopy, simulation