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2020, Number 4

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Rev Cubana Cardiol Cir Cardiovasc 2020; 26 (4)

ST elevation in lead aVR and its short-term prognostic value in Acute Myocardial Infarction

Martínez MY, Ravelo DR, Cruz RLO, Cárdenas FY, Gato RRM, Herrera GLE

Language: Spanish
References: 37
Page: 1-8
PDF size: 254.42 Kb.


ABSTRACT

Introduction: Numerous factors have been related to intrahospital complications in Acute Myocardial Infarction. The usefulness of the ST segment in aVR as a prognostic factor is currently controversial. Objective: To evaluate the short-term prognostic value of ST segment elevation in aVR in patients with acute myocardial infarction. Methods: An observational, analytical and transversal study was conducted with 112 patients at Dr. Carlos J. Finlay Central Military Hospital over a 2-year. Were defined as adverse events: Death, heart failure, angina post infarction, arrhythmias, shock and all combined. Study groups were created, using the ST in aVR and cut-off value <1 mm and ≥ 1 mm. Results: Male sex (60.7%), hypertension (87.5%), smoking (65.2%) and the inferior topography were the prevalent basal characteristics. The 33.0% submitted any mayor adverse cardiac event; with heart failure, being (37.8%) and post infarction angina (19.0%) were the most documented. Heart failure was associated with aVR ≥1mm (p. 0.000). The ST in aVR ≥1mm constituted an independent predictor of mayor cardiac adverse events (p-0.048; IC: 3,898-32,908). Conclusions: In patients with acute myocardial infarction, the elevation of ST in aVR ≥1mm is associated with worse intrahospital clinical evolution.


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