Significance of a prominent Q wave in lead negative aVR (−aVR) in acute anterior myocardial infarction

Associations of positive T wave in lead aVR with hemodynamic, coronary, and left ventricular angiographic findings in anterior wall old myocardial infarction

“…Considering the spatial relations between the aVR lead and these leads, these results are reasonable. We recently demonstrated that in the healing stage of anterior wall MI, a prominent Q wave (≥20 ms in duration) in lead -aVR (that is, a prominent R wave in lead aVR) is associated with severe regional wall motion abnormality in the apical and inferior regions, with an LAD wrapping around the apex [17]. In the present study, the prevalence of a prominent R wave in lead aVR was significantly higher in group A than in group B (35% vs 8.8%, p = 0.002).…”

aVR: la derivada olvidada

“…El estudio realizado por Kotoku et al 23 concluyó que los pacientes que tuvieron infarto con compromiso de la arteria descendente anterior y que posteriormente en el ECG presentaron onda Q > 20 ms en -aVR presentaban menor contractilidad en las regiones apical e inferior.…”

Significance of lead aVR in acute coronary syndrome

“…We have noticed that a Q wave in lead -aVR (R wave in lead aVR) is sometimes observed in patients with anterior wall MI. Accordingly, we examined the association between a prominent Q wave (duration ≥ 20 ms) in lead -aVR and LV wall motion at predischarge in 87 patients with a first anterior wall STEMI [25] . In that study, 17 patients with a prominent Q wave in lead -aVR on the predischarge ECG was found to have a lower LV ejection fraction and more reduced regional wall motion in the apical and inferior regions than 70 patients without a Q wave in lead -aVR.…”