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Coronary flow reserve (CFR) assessment by transthoracic ultrasound of the left anterior descending (LAD) artery during dipyridamole stress echocardiography has been shown to predict prognosis in large unselected populations. Low values of CFR are strongly correlated with significant stenosis of the LAD; aim of the present study was to assess the prognostic impact of CFR in patients recovering from an acute coronary syndrome (ACS) with proven absence of LAD disease.

Dipyridamole coronary flow reserve stratifies prognosis in acute coronary syndrome patients without left anterior descending disease