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Fig. 5 | BMC Cardiovascular Disorders

Fig. 5

From: Why complicate an important task? An orderly display of the limb leads in the 12-lead electrocardiogram and its implications for recognition of acute coronary syndrome

Fig. 5

1. ECG from a patient with LAD occlusion. ECG shows ST elevation in V1 − V4 (c) and ST depression in II, III and aVF. In the standard format (a), slight ST elevation in aVR is present, displayed as ST depression in −aVR in the Cabrera sequence (b). 2. ECG from a patient with takotsubo cardiomyopathy. The ECG shows ST elevation in precordial leads (c) V3 − V6 and also ST elevation in II, III and aVF. In the standard format (a), ST depression in aVR is present, displayed as ST elevation in −aVR in the Cabrera sequence (c). ST depression in inferior leads and ST elevation in aVR (ST depression in −aVR) is more common in patients with LAD occlusion than in patients with takotsubo cardiomyopathy [37]. Kosuge et al. suggested that these differences were more easily visualized, and thus not as easily neglected, when −aVR was used and the leads were presented in contiguous order [37]

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