Key result
Echo posterior wall excursion time enables simultaneous measurement of LV diameters and ejection time.
Why the study?
Left ventricular ejection time is usually measured indirectly or with cumbersome methods, and a simpler echocardiographic technique is needed for dynamic studies.
Observational
Posterior wall excursion may estimate LV ejection time in select patients; leaves open validation against standard methods before clinical use.
Echocardiography has proven useful in determining systolic time intervals. Left ventricular mean velocity of circumferential fiber shortening has been calculated utilizing the left ventricular ejection time measured in several manners, usually from the echocardiographic aortic valve opening time or indirect carotid pulse tracing. Left ventricular ejection time is related to the time of posterior wall excursion in patients without conduction defects or segmental wall motion abnormalities. Thus, a single echocardiographic view can measure ventricular diameters and approximate ejection time simultaneously without other echocardiographic or phonocardiographic measurements which may be cumbersome to obtain, particularly during dynamic echocardiographic studies.
No takes yet. Share an insight, caveat, or question.
Osborn et al. (1983) conducted an observational in Patients without conduction defects or segmental wall motion abnormalities. Measurement of left ventricular ejection time from echocardiographic posterior wall excursion time vs. Traditional echocardiographic or phonocardiographic measurements was evaluated. Measuring left ventricular ejection time from echocardiographic posterior wall excursion time allows simultaneous assessment of ventricular diameters and ejection time.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: