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Satoshi Jujo
University of Hawai'i at Manoa John A Burns School of Medicine
Corresponding Author
ORCiD: https://orcid.org/0000-0003-1933-0782
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Background Cardiac point-of-care ultrasound (POCUS) training has been integrated into medical school curricula. However, there is no standardized cardiac POCUS training method for medical students. To address this issue, the American Society of Echocardiography (ASE) proposed a framework for medical student cardiac POCUS training. The objective of this pilot study was to develop a medical student cardiac POCUS curriculum with test scoring systems and test the curriculum feasibility for a future definitive study.
Methods Based on the ASE-recommended framework, we developed a cardiac POCUS curriculum consisting of a pre-training online module and hands-on training with a hand-held ultrasound (Butterfly iQ). The curriculum learning effects were assessed with a 10-point maximum skill test and a 40-point maximum knowledge test at pre-, immediate post-, and 8-week post-training. To determine the curriculum feasibility, we planned to recruit 6 pre-clinical medical students. We semi-quantitatively evaluated the curriculum feasibility in terms of recruitment rate, follow-up rate 8 weeks after training, instructional design of the curriculum, the effect size (ES) of the test score improvements, and participant satisfaction. Discriminatory ability of the test scoring systems were assessed by comparing the scores of the medical students, medical interns, and experts.
Results Six pre-clinical medical students participated in the curriculum. The recruitment rate was 100% (6/6 students) and the follow-up rate 8 weeks after training was 100% (6/6). ESs of skill and knowledge test score differences between pre- and immediate post-, and between pre- and 8-week post-training were large. The students reported high satisfaction with the curriculum. The test scoring systems demonstrated excellent discriminatory ability between the 3 different performance levels.
Conclusions This pilot study confirmed the curriculum design as feasible with instructional design modifications including the hands-on training group size, content of the cardiac POCUS lecture, hands-on teaching instructions, and hand-held ultrasound usage. Based on the pilot study findings, we plan to conduct the definitive study with the primary outcome of long-term skill retention 8 weeks after initial training. The definitive study has been registered in ClinicalTrials.gov (Identifier: NCT04083924).
Keywords
Medical student, Medical education, Point-of-care ultrasound, POCUS, Handheld ultrasound, Echocardiography, Curriculum development
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CURRENT STATUS: Published
View the published article at Pilot and Feasibility Studies.
Version 1
Posted 20 Jul, 2020
No community comments so far
Editorial decision: Minor revision
On 23 Jun, 2021
Review #2 received
Received 21 Jun, 2021
Reviews received
Received 02 Jun, 2021
Reviewer #2 agreed
On 05 Mar, 2021
Reviewer #1 agreed
On 31 Dec, 2020
Review #1 received
Received 31 Dec, 2020
Reviewers invited
Invitations sent on 17 Jul, 2020
First submitted
On 14 Jul, 2020
Editor assigned
On 14 Jul, 2020
Submission checks complete
On 13 Jul, 2020
Editor invited
On 13 Jul, 2020
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A new preprint design is coming!
We have improved readability, clarity, accessibility, and opportunities for engagement.
See the published version of this preprint at Pilot and Feasibility Studies.
This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research
Satoshi Jujo
University of Hawai'i at Manoa John A Burns School of Medicine
Corresponding Author
ORCiD: https://orcid.org/0000-0003-1933-0782
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Published
View the published article at Pilot and Feasibility Studies.
Version 1
Posted 20 Jul, 2020
No community comments so far
Editorial decision: Minor revision
On 23 Jun, 2021
Review #2 received
Received 21 Jun, 2021
Reviews received
Received 02 Jun, 2021
Reviewer #2 agreed
On 05 Mar, 2021
Reviewer #1 agreed
On 31 Dec, 2020
Review #1 received
Received 31 Dec, 2020
Reviewers invited
Invitations sent on 17 Jul, 2020
First submitted
On 14 Jul, 2020
Editor assigned
On 14 Jul, 2020
Submission checks complete
On 13 Jul, 2020
Editor invited
On 13 Jul, 2020
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
View the published article at Pilot and Feasibility Studies.
Background Cardiac point-of-care ultrasound (POCUS) training has been integrated into medical school curricula. However, there is no standardized cardiac POCUS training method for medical students. To address this issue, the American Society of Echocardiography (ASE) proposed a framework for medical student cardiac POCUS training. The objective of this pilot study was to develop a medical student cardiac POCUS curriculum with test scoring systems and test the curriculum feasibility for a future definitive study.
Methods Based on the ASE-recommended framework, we developed a cardiac POCUS curriculum consisting of a pre-training online module and hands-on training with a hand-held ultrasound (Butterfly iQ). The curriculum learning effects were assessed with a 10-point maximum skill test and a 40-point maximum knowledge test at pre-, immediate post-, and 8-week post-training. To determine the curriculum feasibility, we planned to recruit 6 pre-clinical medical students. We semi-quantitatively evaluated the curriculum feasibility in terms of recruitment rate, follow-up rate 8 weeks after training, instructional design of the curriculum, the effect size (ES) of the test score improvements, and participant satisfaction. Discriminatory ability of the test scoring systems were assessed by comparing the scores of the medical students, medical interns, and experts.
Results Six pre-clinical medical students participated in the curriculum. The recruitment rate was 100% (6/6 students) and the follow-up rate 8 weeks after training was 100% (6/6). ESs of skill and knowledge test score differences between pre- and immediate post-, and between pre- and 8-week post-training were large. The students reported high satisfaction with the curriculum. The test scoring systems demonstrated excellent discriminatory ability between the 3 different performance levels.
Conclusions This pilot study confirmed the curriculum design as feasible with instructional design modifications including the hands-on training group size, content of the cardiac POCUS lecture, hands-on teaching instructions, and hand-held ultrasound usage. Based on the pilot study findings, we plan to conduct the definitive study with the primary outcome of long-term skill retention 8 weeks after initial training. The definitive study has been registered in ClinicalTrials.gov (Identifier: NCT04083924).
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
This is a list of supplementary files associated with this preprint. Click to download.
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