An observational study in Heart Failure, Systolic, sponsored by Hanyang University. Status unknown at 1 site in South Korea. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2016-11-10.
Sponsored by Hanyang University · Observational
Background: Given that an experienced physician is not always available 24 hours a day, immediately and always available echocardiography is usually impossible in the emergency department (ED) and intensive care unit (ICU). To compensate this limitation, the investigators have investigated that offsite expert guided, inexperienced practitioner-performed ultrasonography could be effectively performed. In this study, the investigators aimed to investigate whether the offsite expert can effectively evaluate the visually estimated ejection fraction (EF) while watching and guiding the echocardiographic procedure of onsite novice examiner using the social network video calling chat.
Methods: sixty patients presenting to the ICU and requiring echocardiography will be included. Sixty novice practitioners without any previous experience of echocardiography will participate. Prior to their procedure, the onsite expert complete the echocardiography in advance and determine the EF using the modified Simpson's method (MSM, Reference value). Then, the novice physicians perform the echocardiography again with the offsite expert's guidance via video call. They obtain parasternal long and short axis view and EF is visually estimated to the nearest 5% (ex. 40%, 45% and etc) by the offsite expert while watching the ultrasound video on the smartphone display. The subjects requiring immediate management due to severe symptoms were excluded in this study. Interobserver variability between the calculated by onsite expert and visually estimated by offsite expert was assessed. The agreement of the visual estimated EF obtained by onsite expert and offsite expert via smartphone was evaluated by linear regression and Bland-Altman plots.
231 studies on the registry are indexed under Heart Failure, Systolic; 50 are open to participants now.
This study's planned enrollment of 60 is below the median of 200 across 56 observational studies indexed under Heart Failure, Systolic.
Browse Heart Failure, Systolic studies →Hanyang University is the lead sponsor of 52 studies on the registry; 3 are open to participants now.
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Sixty patients who admit to intensive care unit Sixty novice sonographers without any previous experience of echocardiography Two offsite experts who are certified as trained echocardiologist by the Korean Society of Echocardiography One onsite expert who is board certified cardiologist
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Exclusion Criteria:
The non-inferiority test is conducted to analyze that the visually estimated ejection fraction via telesonography is not inferior to the quantitative ejection fraction by modified Simpson's method.
Time frame: one day
Lineal regression is also conducted to show the correlation coefficient between visually estimated ejection fraction via telesonography and the quantitative ejection fraction by modified Simpson's method.
Time frame: one day
The image quality assessment for transmitted image via commercially available video calling chat is conducted by using single stimulus method and double stimulus impairment scale
Time frame: one day
The record gives a start of Nov 2016 and a primary completion of Nov 2016. It does not say whether these dates are actual or estimated.
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This study is status unknown, as verified in Nov 2016. You cannot join it, but the record below documents what was studied.
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Hanyang University