TY - JOUR
T1 - Echocardiographic Systolic Time Intervals
T2 - Left Ventricular Performance in Coronary Artery Disease
AU - Chilton, Robert J.
AU - Oliveros, Rene A.
AU - Stutts, Baldwin S.
AU - Beckmann, Charles H.
AU - Boucher, Charles A.
PY - 1980/2
Y1 - 1980/2
N2 - The ratio of the preelection period to the left ventricular ejection time (PEP/LVET), obtained from the aortic root echocardiogram, was studied immediately before and after left ventricular (LV) cineangiography in 23 patients with documented coronary artery disease. The initial PEP/LVET ratio was inversely related to LV ejection fraction (r = —.78, P ≤.001). Repeat measurements taken 60 s after angiography showed a significant decrease from a mean value of.36 ±.13 to.27 ±.08 (P ≤.005). Furthermore, when patients were divided into those with an initial PEP/LVET value above and below 0.40, those with a higher value showed a significantly greater decrease following contrast left ventriculography (mean decrease, 0.16 vs 0.06, P ≤.01). This study indicates that systolic time intervals derived from echocardiography are a reliable noninvasive measure of LV function, and that ventricular function improves following left ventriculography, with the degree of improvement being inversely related to initial function.
AB - The ratio of the preelection period to the left ventricular ejection time (PEP/LVET), obtained from the aortic root echocardiogram, was studied immediately before and after left ventricular (LV) cineangiography in 23 patients with documented coronary artery disease. The initial PEP/LVET ratio was inversely related to LV ejection fraction (r = —.78, P ≤.001). Repeat measurements taken 60 s after angiography showed a significant decrease from a mean value of.36 ±.13 to.27 ±.08 (P ≤.005). Furthermore, when patients were divided into those with an initial PEP/LVET value above and below 0.40, those with a higher value showed a significantly greater decrease following contrast left ventriculography (mean decrease, 0.16 vs 0.06, P ≤.01). This study indicates that systolic time intervals derived from echocardiography are a reliable noninvasive measure of LV function, and that ventricular function improves following left ventriculography, with the degree of improvement being inversely related to initial function.
UR - http://www.scopus.com/inward/record.url?scp=84942561472&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84942561472&partnerID=8YFLogxK
U2 - 10.1001/archinte.1980.00330140098025
DO - 10.1001/archinte.1980.00330140098025
M3 - Article
C2 - 7352820
AN - SCOPUS:84942561472
SN - 0003-9926
VL - 140
SP - 240
EP - 243
JO - Archives of Internal Medicine
JF - Archives of Internal Medicine
IS - 2
ER -