Abstract

We read with great interest the study of Rigo et al. 1 entitled ‘The prognostic impact of coronary flow reserve assessed by Doppler echocardiography in non-ischaemic dilated cardiomyopathy’. This intriguing echocardiographic study found that Doppler echocardiographic-derived reduced coronary flow reserve (CFR) during vasodilator stress is an independent prognostic marker of bad prognosis in dilated cardiomyopathy (DCM). However, we feel that a …

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