Fred Colen, Chief Executive Officer, Neovasc sheds light on the four classes of angina and how the quality of life deteriorates for patients suffering from symptoms. Looking for the fundamental reason for the chronic condition of refractory angina has led Neovasc to address the small blood vessels inside the myocardium, the muscle of the heart. With their interventional cardiology procedure, the implanted device increases the pressure inside these small arteries and  improves all symptoms.   @neovasc #RefractoryAngina #angina #heartdisease Neovasc.com Download the transcript here