Figure 209-2

Main pathogenetic mechanisms of syndrome X. Syndrome X likely results from a variable combination of two components: a coronary microvascular dysfunction and an increased pain sensitivity, both of which may have a bell-shaped prevalence in the population. (From Maseri by permission.)

Maseri,A. and Others, Coronary Blood Flo w and Myocardial Ischemia ,THE HEART,Hurst's,Volume 1 10th edition ,pp.1124-1125.