pärgarterite ebapiisavast vereringest põhjus­tatud, südamelihase hapnikuvaegusest tulenev, lihaskoormuse ajal eriti vasakul tuntav ning sageli kaela ja vasakusse käsivarde kiirguv pigistav rinnavalu j, a substernal pain, or sense of constriction or oppression, often radiating into the neck or arms and sometimes into the back, produced by insufficient blood-supply to the myocardium, a disease marked by brief sudden attacks of chest pain or discomfort caused by deficient oxygenation of the heart muscles usually due to impaired blood flow to the heart