"widening of the QRS complexes (> 0.12s) with tall, broad monophasic (or notched) R waves in the lateral leads (I, aVL, V4-6, lead II less commonly)associated with discordant ST segment deviation"
"associated with regional wall motion abnormalities which demonstrate reduced systolic wall thickening (< 40%)"
"widening of the QRS complexes (> 0.12s) with tall, broad monophasic (or notched) R waves in the lateral leads (I, aVL, V4-6, lead II less commonly)associated with discordant ST segment deviation"
"The finding is seen mainly in left bundle branch block and right ventricular pacing, due to early activation of the interventricular septal myocardium 1,2,3. The presence of either entity is best ascertained using electrocardiography."
"widening of the QRS complexes (> 0.12s) with tall, broad monophasic (or notched) R waves in the lateral leads (I, aVL, V4-6, lead II less commonly)associated with discordant ST segment deviation"
"widening of the QRS complexes (> 0.12s) with tall, broad monophasic (or notched) R waves in the lateral leads (I, aVL, V4-6, lead II less commonly)associated with discordant ST segment deviation"
"right-sided precordial leads (V1-3) will be predominantly negative (rS or QS complexes, PRWP common) with discordant ST segment deviation"
"right-sided precordial leads (V1-3) will be predominantly negative (rS or QS complexes, PRWP common) with discordant ST segment deviation"
"right-sided precordial leads (V1-3) will be predominantly negative (rS or QS complexes, PRWP common) with discordant ST segment deviation"
"sharp pacer "spike" may be present preceding the QRS"
"impulses originate from the right ventricle, with the depolarisation vector spreading through myocytes (prolonging the QRS duration) from right to left (thereby producing predominantly negative QS or rS complexes in the right precordium with large positive R waves in the leads I, aVL, V4-5)"
"impulses originate from the right ventricle, with the depolarisation vector spreading through myocytes (prolonging the QRS duration) from right to left (thereby producing predominantly negative QS or rS complexes in the right precordium with large positive R waves in the leads I, aVL, V4-5)"
"discordant ST segment deviation is also present"
"apical location of the pacer lead results in predominantly negative QRS complexes in the inferior leads and resultant left axis deviation (in the frontal plane)"
"The differentiation of the two rhythms may be difficult, and might be accomplished by looking at lead V6; the polarity of the QRS complex should be positive in a left bundle branch block and is often negative with a prominent S wave in a ventricular paced rhythm."
Expected headings
"ECG"
"The differentiation of the two rhythms may be difficult, and might be accomplished by looking at lead V6; the polarity of the QRS complex should be positive in a left bundle branch block and is often negative with a prominent S wave in a ventricular paced rhythm."