Quantitative Estimation of Left Ventricular Ejection Fraction from Mitral Valve E-Point to Septal Separation and Comparison to Magnetic Resonance Imaging

Silverstein, Jay R.; Laffely, Nicholas H.; Rifkin, Robert D.

doi:10.1016/j.amjcard.2005.07.118

Cited by 42 publications

(35 citation statements)

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“…We were not able to reproduce the high accuracy between E-point septal separation measurements and EF measurements reported using cardiac magnetic resonance imaging (MRI). The study by Silverstein et al 20 was a retrospective study of selected image files from a cardiac MRI database and excluded patients with coexisting conditions that are known to influence mitral leaflet proximity to the septal wall, including septal hypertrophy and moderate to severe aortic insufficiency. Our patient inclusion criteria were broader and less selective.…”

Section: Discussionmentioning

confidence: 99%

“…E-point septal separation measurements greater than 7 mm are reported to detect severely depressed LV systolic function (EF <30%). 18,19 Evidence from Silverstein et al 20 suggests that E-point septal separation has potential as a continuous variable in detecting the EF. That study was a retrospective review of selected cardiac magnetic resonance images from a database.…”

Section: Original Researchmentioning

confidence: 99%

“…That study was a retrospective review of selected cardiac magnetic resonance images from a database. 20 The spectrum of E-point septal separation measurements using echocardiography, however, has not been prospectively compared with other more established LV systolic function measurement methods in ED patients. For these reasons, we prospectively compared contemporaneous echocardiographic E-point septal separation and fractional shortening measurements in ED patients receiving clinically indicated bedside LV systolic function assessments.…”

Section: Original Researchmentioning

confidence: 99%

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E-Point Septal Separation Compared to Fractional Shortening Measurements of Systolic Function in Emergency Department Patients

Weekes

Reddy

Lewis

et al. 2012

Journal of Ultrasound in Medicine

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Prospective Randomized Study edside emergency cardiac sonography is ideally suited to rule in or rule out poor left ventricular (LV) systolic function. 1 Overall cardiac function is important in making more accurate diagnoses and clinical care decisions. [1][2][3][4][5][6] Visual estimates of LV systolic function can differentiate severely depressed from normal LV systolic function, but physicians often encounter disagreements in differentiating moderately depressed and normal LV systolic function. [7][8][9] Quantitative comprehensive echocardiographic measAnthony J. Weekes, MD, Abhiram Reddy, MD, Margaret R. Lewis, MD, H. James Norton, PhD Received April 19, 2012, ORIGINAL RESEARCHObjectives-Rapid bedside assessment of left ventricular (LV) function can aid in the evaluation of the critically ill patient and guide clinical management. Our primary hypothesis was that mitral valve E-point septal separation measurements would correlate with contemporaneous fractional shortening measurements of LV systolic function when performed by emergency physicians. Our secondary hypothesis was that E-point septal separation as a continuous variable would predict fractional shortening using a linear regression model.Methods-We studied a prospective convenience sample of patients undergoing a sequence of LV systolic function measurements during a 3-month period at a suburban academic emergency department with a census of 114,000 patients. The sample included adult emergency department patients who were determined by the treating emergency physician to have 1 or more clinical indications for bedside LV systolic function assessment. Investigators performed bedside M-mode cardiac sonographic measurements of fractional shortening and E-point septal separation using the parasternal long-axis window. The sequence of LV systolic function measurements was randomized.Results-A total of 103 patients were enrolled. The Pearson correlation coefficient for E-point septal separation and fractional shortening measurements was -0.59 (P < .0001). Linear regression analysis performed for E-point septal separation with fractional shortening as the dependent variable yielded an R 2 value of 0.35.Conclusions-E-point septal separation and fractional shortening measurements had a moderate negative correlation. E-point septal separation, when used as a continuous variable in a linear regression model, did not reliably predict fractional shortening.

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Section: Discussionmentioning

confidence: 99%

Section: Original Researchmentioning

confidence: 99%

Section: Original Researchmentioning

confidence: 99%

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E-Point Septal Separation Compared to Fractional Shortening Measurements of Systolic Function in Emergency Department Patients

Weekes

Reddy

Lewis

et al. 2012

Journal of Ultrasound in Medicine

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“…La estimación ecográfica de la fracción de eyección del ventrículo izquierdo también se puede evaluar basado en la estimación de la separación del tabique interventricular al punto E de la válvula mitral (Koenig et al, 1983, Silverstein et al, 2006. Esta medida corresponde a la distancia entre la abertura máxima de la válvula mitral y el tabique interventricular (Reef et al, 2005), evaluada en el modo M. Esta medida es un método sencillo y rápido que permite diferenciar entre funcionalidad normal o anormal (Silverstein et al, 2006) del ventrículo izquierdo y puede ser un predictor de insuficiencia cardiaca en pacientes con disfunción ventricular izquierda asintomática (Petti et al, 2008).…”

Section: Fe (%) = (Vdvi -Vsvi) X 100unclassified

“…Esta medida corresponde a la distancia entre la abertura máxima de la válvula mitral y el tabique interventricular (Reef et al, 2005), evaluada en el modo M. Esta medida es un método sencillo y rápido que permite diferenciar entre funcionalidad normal o anormal (Silverstein et al, 2006) del ventrículo izquierdo y puede ser un predictor de insuficiencia cardiaca en pacientes con disfunción ventricular izquierda asintomática (Petti et al, 2008). El valor normal en caballos es de 1.55 +-0.47 cm y no debe exceder los 2.1 cm.…”

Section: Fe (%) = (Vdvi -Vsvi) X 100unclassified

Diagnóstico ecocardiográfico en equinos fina sangre de carrera

Pidal

et al. 2012

Avances en Ciencias Veterinarias

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Echocardiographic examination is a fundamental part of cardiovascular exam if they want to evaluate the real connotation in the presentation of heart murmurs and / or arrhythmias and also where you want to evaluate the performance or the state in which it is related to process of adaptation of cardiovascular system to exercise. The horses are used right and left parasternal windows in which the transducer is moved between the 3rd and 5th intercostal space. In the right parasternal window is where you get more information and it can cut the heart in short axis and long-axis.In the long axis obtained from the right parasternal get the picture of four chambers Key words: Echocardiography, Thoroughbred Horses., Cardiovascular System RESUMEN El examen ecocardiográfico es una parte fundamental del examen cardiovascular si se quiere evaluar la real connotación que pudiesen tener murmullos cardiacos y/o arritmias como también en aquellos casos que se desea evaluar el rendimiento deportivo ó el estado en el cual se encuentra éste en relación al proceso de adaptación del sistema cardiovascular al ejercicio. En el equino se usan las ventanas paraesternales derecha e izquierda, en las cuales se mueve el transductor entre el 3º y 5º espacio intercostal. Por la ventana paraesternal derecha es por donde se obtiene mayor informacion y en ella se puede realizar el corte del corazón en el eje corto y también en el eje largo.En el eje largo obtenido desde la ventana paraesternal derecha se obtiene la imagen de cuatro cámaras (tracto de entrada biventricular), 5 cámaras y tracto de salida izquierdo.En la imagen de 4 cámaras se ven 2 válvulas atrioventriculares, es decir, la tricúspide y la mitral. En la imagen del tracto de salida del ventrículo izquierdo, vamos a ver ventrículo derecho, atrio derecha, tabique interventricular, ventrículo izquierdo, válvula sigmoidea aórtica y la aorta. En la imagen de 5 cámaras se aprecia ventrículo derecho, atrio derecho, atrio izquierdo, ventrículo izquierdo y también se puede observar la aorta.

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Noninvasive Monitoring in Critical Care

Easter

2024

Critical Care Obstetrics

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Quantitative Estimation of Left Ventricular Ejection Fraction from Mitral Valve E-Point to Septal Separation and Comparison to Magnetic Resonance Imaging

Cited by 42 publications

References 10 publications

E-Point Septal Separation Compared to Fractional Shortening Measurements of Systolic Function in Emergency Department Patients

E-Point Septal Separation Compared to Fractional Shortening Measurements of Systolic Function in Emergency Department Patients

Diagnóstico ecocardiográfico en equinos fina sangre de carrera

Noninvasive Monitoring in Critical Care

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