"Normal left ventricular contraction occurs following electrical activation; after a brief lag period, simultaneous inward (in relation to the left ventricular cavity) excursion of the left ventricular anteroseptal and inferolateral walls occurs in conjunction with wall thickening. Relaxation, and outward excursion of the aforementioned walls, occurs after the electrocardiographic T wave in diastole.The septum, which often has a minute inscription of its M mode tracing at the peak of its inward excursion, may be observed to move outward slightly before the corresponding movement of the anterolateral wall."
"prolongation of QRS complex duration >0.12 seconds"
"broad, positive monophasic (or notched) R wave in the left sided leads (leads I, aVL, V5-6)associated with discordant ST depression and T wave inversion"
"negative (typically QS or rS) QRS polarity in the right precordiumprecordial leads V1-3"
"negative (typically QS or rS) QRS polarity in the right precordiumprecordial leads V1-3"
"a brief inward (posterior) excursion of the anteroseptal wall precedes the paradoxical anterior motion, producing the characteristic "beaking" of the M-mode tracingthis inward excursion is temporally related to the QRS complex on the ECG, occurring within 0.04 seconds of the R wave peak"
"Normal LV wall motion"
Expected headings
"ECG"
"Normal LV wall motion"
"Wall motion in LBBB"
"Normal left ventricular contraction occurs following electrical activation; after a brief lag period, simultaneous inward (in relation to the left ventricular cavity) excursion of the left ventricular anteroseptal and inferolateral walls occurs in conjunction with wall thickening. Relaxation, and outward excursion of the aforementioned walls, occurs after the electrocardiographic T wave in diastole.The septum, which often has a minute inscription of its M mode tracing at the peak of its inward excursion, may be observed to move outward slightly before the corresponding movement of the anterolateral wall."