Focused Cardiac and Lung Ultrasound in Anesthesia/Critical Care - The Role of Self-directed Simulation-assisted Training Compared to a Traditional Supervised Approach

December 5, 2016 updated by: Unity Health Toronto

The purpose of this study is to determine whether a self-directed and simulation-based lung ultrasound (LUS) and focused cardiac ultrasound (FCU) curriculum is efficacious on anesthesia trainees' image acquisition skills and diagnostic acumen. The investigators hypothesize that a self-directed and ultrasound-assisted LUS and FCU curriculum that includes video lectures, online teaching modules, an ultrasound simulator, and self-directed hands-on sessions on critically ill mechanically ventilated patients is effective in training novice ultrasonographers to obtain good quality images, to correctly interpret them, and to support clinical decision-making in critically ill patients.

Trainees will be randomized to fully supervised FCU hands-on sessions on healthy models and critically ill mechanically ventilated patients (control group - traditional apprenticeship model) or to a completely self-directed and simulation-based approach (intervention group).

To assess if this new self-directed and simulation-based ultrasound curriculum leads to adequate acquisition of competences (adequate image acquisition and interpretation) in novice ultrasonographers, trainees will have to perform a focused lung and cardiac assessment on a critically ill mechanically ventilated patient.

Study Overview

Study Type

Interventional

Enrollment (Anticipated)

30

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

    • Ontario
      • Toronto, Ontario, Canada, M5B 1W8
        • Recruiting
        • St. Michael's Hospital
        • Contact:
        • Principal Investigator:
          • Simon Abrahamson, MD
        • Principal Investigator:
          • Han Kim, MD
        • Principal Investigator:
          • Goffi Alberto, MD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • ADULT
  • OLDER_ADULT
  • CHILD

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • PGY1 and PGY2 anesthesia resident at the University of Toronto

Exclusion Criteria:

  • Previous training in lung ultrasound or FCU

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: SINGLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: Self-directed and simulation-assisted training

All participants will attend an ultrasound introductory course (lectures and illustrative interactive cases).

Participants randomized to the intervention group will undergo a completely self-directed lung and focused cardiac ultrasound curriculum.

  • A set of video-lectures on how to perform US on a critically ill patient (video-tutorials on image acquisition, troubleshooting, and pitfalls) will be provided.
  • Participant will have access to an ultrasound simulator.
  • Finally, participants in the intervention group will be asked to perform self-directed lung and focused cardiac ultrasound examinations on critically ill patients.

An investigator will supervise the sessions but will not interfere with the self-learning process.

- To support their learning, trainees will have access to on-line virtual FCU and LUS modules created by the Toronto General Hospital Department of Anesthesia Perioperative Interactive Education (http://pie.med.utoronto.ca/TTE/index.htm).

ACTIVE_COMPARATOR: Traditional apprenticeship training

All participants will attend an half-day ultrasound introductory course.

  • Participants randomized to the conventional group will initially attend 2-hour hands-on session on healthy volunteers, fully supervised by an expert critical care ultrasonographer (acquisition of basic knowledge with US machine settings and probe positioning and orientation, normal view acquisition, and identification of normal anatomical structures and landmarks).
  • Subsequently, participants will attend a 3-hours hands-on session on critically ill patients, fully supervised by an expert critical care ultrasonographer.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Difference between pre- and post-intervention image acquisition and interpretation skill (as compared to the benchmark exam).
Time Frame: ~4-5 months post-study enrolment, after completion of ultrasound training

The quality of the images will be scored from 1 (worst) to 5 (best). The score will be based on the assessment of the quality of the image as well as an assessment of relevant cardiac structures included in each view.

Difference between pre- and post-intervention image acquisition skills and knowledge as measured by:

  • Scanning time (total and per view)
  • Anatomy recognition
  • Items completion (%)
  • Image interpretation (Y/N for lung sliding, interstitial syndrome, pleural effusion, consolidation, pericardial fluid, LV global function, RV global function, intravascular volume assessment; total and per objective accuracy)
  • MCQs results (%) (Indication & Image interpretation assessment)
  • Video-interpretation of cases results (%) (Image interpretation & Clinical decision-making assessment)
  • Qualitative and quantitative analysis of survey results (dichotomic questions; graded criteria; e.g.10-point Likert scale)
~4-5 months post-study enrolment, after completion of ultrasound training

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Differences between self-directed and simulation-assisted training and traditional apprenticeship training
Time Frame: ~4-5 months post-study enrolment, after completion of ultrasound training

Difference between groups in image acquisition skills and knowledge as measured by:

  • Quality of images obtained (total and per view score)
  • Scanning time (total and per view)
  • Anatomy recognition (at least 4 structures identified/views for FCU, and 3 structures identified/LUS findings for LUS; max score 20 + 6)
  • Items completion (%)
  • Image interpretation (Y/N for lung sliding, interstitial syndrome, pleural effusion, consolidation, pericardial fluid, LV global function, RV global function, intravascular volume assessment; total and per objective accuracy)
  • MCQs results (%) (Indication & Image interpretation assessment)
  • Video-interpretation of cases results (%) (Image interpretation & Clinical decision-making assessment)
  • Qualitative and quantitative analysis of survey results (dichotomic questions; graded criteria; e.g.10-point Likert scale)
~4-5 months post-study enrolment, after completion of ultrasound training

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Assessment of baseline visuo-spatial skill
Time Frame: ~4-5 months post-study enrolment, after completion of ultrasound training
Visuo-spatial skill test scores compared to FCU outcomes related to technical proficiency gained (quality of images acquired; percent correct views obtained; scanning time; anatomy recognition).
~4-5 months post-study enrolment, after completion of ultrasound training
Knowledge and skills retention at 3 months
Time Frame: ~4-5 months post-study enrolment, after completion of ultrasound training

Difference between groups in image acquisition skill and knowledge as measured by:

  • Quality of images obtained (total and per view score)
  • Scanning time (total and per view)
  • Anatomy recognition (at least 4 structures identified/views for FCU, and 3 structures identified/LUS findings for LUS; max score 20 + 6)
  • Items completion (%)
  • Image interpretation (Y/N for lung sliding, interstitial syndrome, pleural effusion, consolidation, pericardial fluid, LV global function, RV global function, intravascular volume assessment; total and per objective accuracy)
  • MCQs results (%) (Indication & Image interpretation assessment)
  • Video-interpretation of cases results (%) (Image interpretation & Clinical decision-making assessment)
  • Qualitative and quantitative analysis of survey results (dichotomic questions; graded criteria; e.g.10-point Likert scale)
~4-5 months post-study enrolment, after completion of ultrasound training

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Simon Abrahamson, MD, Unity Health Toronto
  • Principal Investigator: Han Kim, MD, Unity Health Toronto

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

November 1, 2014

Primary Completion (ANTICIPATED)

June 1, 2018

Study Completion (ANTICIPATED)

June 1, 2018

Study Registration Dates

First Submitted

October 24, 2013

First Submitted That Met QC Criteria

October 29, 2013

First Posted (ESTIMATE)

October 30, 2013

Study Record Updates

Last Update Posted (ESTIMATE)

December 6, 2016

Last Update Submitted That Met QC Criteria

December 5, 2016

Last Verified

December 1, 2016

More Information

Terms related to this study

Other Study ID Numbers

  • CCUS-Toronto01

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Education, Medical

Clinical Trials on Self-directed and simulation-assisted training

3
Subscribe