RCX PLA1 >LAO  
   
RCX PLA1>RAO
       
     
 

At this rare Variant of a left Coronarartery completely arising from the right, the Strenose lain in a lateral branch is met in RAO position orthograd and not sufficiently recognizable.

 

Acute myocardial infarction generally forms in the presence of severe coronary artery stenosis or occlusion which, in about 40% of cases, is not necessarily preceded by severe stenosis but can also have developed acutely in the presence of plaque rupture with only slight prior narrowing of the lumen. Since function is maintained for only a short time, contraction disturbances have almost always already started even if only a very short period has elapsed between the onset of symptoms and the angiography. The only exception is in patients who already have a well-developed collateral blood supply to the region supplied by the stenosed or occluded coronary artery.