Objective:
@EN To compare the usefulness of the apical transducer approach with that of parasternal approach in two-dimensional echocardiography for detection of left ventricular(I.V) regional asynergy in ischemic heart disease, the 49 subjects(25 of acute
myocardial infarction, 7 of old myocardial infarction with angina, 16 of nustable angina pectoris) having good echocardiographic window with significant coronary lesion were studied.
@ES Methods:
@EN We assessed the LV regional asynergy by visual analysis and scoring of 16 LV wall segments(8 in proximal, 8 in distal) from video playback. We compared the above two approaches using the same scoring scale recommended by American Society of
Echocardiography.
@ES Results:
@EN 1)All 6 patients with old myocardial infarction, 20(80%) of 25 patients with acute myocardial infarction, 6(33%0 of 18 patients with unstable angina showed apparent LV asynergy on either approach. 2) There was a overall good agreement(89%),
131
of
147 segments) on either approach. 2) There was a overall good agreement(89%), 131 of 147 segments) between two approaches in detecting LV regional asynergy when dividing the LV into 3 regions(anterior, lateral, posterior). 3) Of the total 16
disagreed
regions, 13(81%) regions detected only by the apical approach were localized to apex of the LV, and 3(19%) regions detected only by the parasternal approach were mostly localized to base of the LV. 4) Of toal 19 dyskinetic segments, 3(16%)
segments
were
detected by the parasternal approach, while 16(84%)segments by the apical approach. 5) All 7 aneurysmal segments were detected only by the apical approach.
@ES Conclusion :
@EN Both the apical and the parasternal approaches are complementary each other, but the apical approach might be a simple, reliable method providing better images for detection of LV regional asynergy, which localized near the cardiac apex and
compares
favorably with the parasternal short axis approach.
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