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2021, Number 2

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Rev Cubana Cardiol Cir Cardiovasc 2021; 27 (2)

Prognostic value of ST segment shift in lead aVR in non ST segment elevation acute coronary syndrome. Two years follow-up

García HRA, Rivero SL, Aroche AR, Aldama PLI, Hernández NM, Obregón SAG

Language: Spanish
References: 28
Page:
PDF size: 1009.83 Kb.


ABSTRACT

Introduction: ST segment lead aVR is frequently ignored during electrocardiogram analysis, although it could be an useful prognostic tool in patients with coronary acute syndrome.
Objective: To determinate the contribution of ST segment shift in lead aVR in patients withnon ST segment elevation acute coronary syndrome in the ocurrence of cardiovascular adverse events.
Method: Analytic longitudinal study in patients with non ST segment elevation acute coronary syndrome hospitalized in coronary care unit at Hospital Hermanos Ameijeiras and Hospital Enrique Cabrera from may 2011 to may 2017.
Results: Male patients (52,9 %) with a mean age 66,0 ± 8,0 and more than two risk factors (92,2 %) were predominant. Wide ST segment shift in lead aVR was associated to advanced Killip Kimbal class (36,7 %), higher troponine levels (95,6 %), complex coronary artery disease (100 %) and worse left ventricle ejection fraction (99,6 %), p<0,001. It also was related to cardiac adverse events ocurrence.
Conclusion: Wide ST segment shift in lead aVR was a sensible prognostic tool that improves prediction of cardiovascular adverse events.


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