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Microvolt T-Wave Alternans In Patients Undergoing Elective Coronary Artery Bypass Grafting: A Pilot Study, G. Khoueiry, M. Abdallah, M. Shariff, M. Kowalski, J. Lafferty

Journal Articles

INTRODUCTION: We designed a prospective observational study targeting a selective population of patients undergoing elective coronary artery bypass grafting with normal systolic function. In this study we looked at the prevalence of pre-operative microvolt T-wave alternans and if it predicts atrial fibrillation after surgery. METHODS: The inclusion criteria included all patients referred to the cardiothoracic outpatient clinic for elective bypass, who can perform aerobic exercise, with a recent exercise stress test exercising at least to 85% of the maximal predicted heart rate (220 - age) and with non-limiting chest pain at maximal exercise. Twenty patients met the inclusion/exclusion criteria between …