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Abstract Objective To evaluate prognostic value of ST segment elevation in lead aVR in patients with acute coro-nary syndrome(ACS). Methods 68 patients with ACS were divided into elevation group(n=23) and non-elevation group (n=45) according to whether ST segment elevation in lead aVR ≥0.05mV or not and their coronary angiography results were analyzed. Results The cases with lesions in left main coronary artery and proximal left anterior descending coro-nary artery, multi-vessel lesions, and cardiac events were significantly more in elevation group (56.5%,39.1% and 30.4%)than in non-elevation group (2.2%,17.8% and 8.9%) (all P < 0.01). Conclusion ST segment elevation in lead aVR may be a predictor of left main coronary artery and proximal left anterior descending coronary artery lesion or multi-vessel le-sion.
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