====== Microvascular angina ====== //Microvascular angina //( previously known as //Cardiac Syndrome X// ) is a form of angina (chest pain) associated with insufficient blood flow to the heart (and some other organs/regions) //but in patients who have normal coronary angiograms.// It's estimated that as many as 30% of patients with angina have this type, rather than 'standard' angina which is caused by narrowing of arteries - typically due to [[content:medicine:diseases:a-f:arterial_sclerosis]] (ref. [[https://www.tandfonline.com/doi/abs/10.3810/hp.2000.02.183|Hospital Practice Journal]] Volume 35, 2000 - Issue 2) There is currently no known specific cause of the condition. >__While numerous physiological mechanisms have been proposed, none have been proven. __\\ \\ Source : [[https://en.wikipedia.org/wiki/Microvascular_angina#Pathophysiology|Wikipedia]]