Heart Ultrasound by Emergency Medicine Residents as an Estimate of Heart Function

Study Overview
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Brief Summary
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The purpose of this research is to better understand the use of heart ultrasounds to estimate heart function.

Detailed Description
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This research involves ultrasounds of the heart by two different emergency medicine doctors who are residents in training. Results from the two doctors will be compared to see how similar they are. This research will help us understand if heart ultrasounds can be used to see how well the heart pumps blood and if similar results are obtained from different doctors. The doctors will use ultrasound of the heart to measure E-Point Septal Separation (EPSS). EPSS is the distance between two parts of the heart, the mitral valve and the ventricular septum. EPSS is measured in millimeters (mm). EPSS can estimate left ventricular ejection fraction (LVEF) as a measure of how well the heart pumps blood.

Official Title
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BES2T (Bedside E-point Septal Separation Test) for Emergency Medicine Residents

Conditions
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Stroke Volume, Cardiovascular Diseases

Intervention / Treatment
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* Diagnostic Test: Ultrasound


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Healthy volunteers, or patients who come to the emergency department who may have a heart echocardiogram scheduled as part of their routine clinical care Age 18 or over Willing and able to provide informed consent Exclusion Criteria: Pediatrics (age <18 years old). No cardiac-altering intervention performed between examiners. Unable to obtain a parasternal long view with mitral valve anterior leaflet, interventricular septum and aortic root. Transthoracic echocardiogram (TTE) more than the next day after EPSS is performed (for secondary outcome). Female with known pregnancy. Prisoner Prior cardiac surgery

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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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Diagnostic
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: Healthy Volunteer<br>Healthy volunteers over the age of 18 who consent to two ultrasounds. | Diagnostic Test: Ultrasound<br>* Participants will have ultrasounds of the heart by two different emergency medicine doctors.<br>|
| Experimental: ED patient with planned heart echocardiogram<br>Patients in emergency department (ED) who have a heart echocardiogram scheduled as part of their routine clinical care | Diagnostic Test: Ultrasound<br>* Participants will have ultrasounds of the heart by two different emergency medicine doctors.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Mean change in millimeters between E-Point Septal Separation (EPSS) measurements of the heart by two physicians | Two physicians will use the same ultrasound device to measure the E-Point Septal Separation (EPSS) on the same patients. EPSS is the distance between two parts of the heart, the mitral valve and the ventricular septum. The mean change in EPSS measurements in millimeter will be calculated. | During procedure | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Percent change in Left Ventricular Ejection Fraction (LVEF) estimated from ultrasound compared to a formal transthoracic echocardiogram. | Percent change in Left Ventricular Ejection Fraction (LVEF) estimated from ultrasound compared to a formal transthoracic echocardiogram. LVEF (in %) will be estimated from ultrasound using the formula = 75.5 - (2.5 x E-Point Septal Separation in millimeters) | During procedure |