What is inferior lateral ischemia

Recent angina and some chest pressure tightness and occasional burning.  EKG negative, echocardiogram negative, stress test positive, nuclear cardiolite stress test positive and suggestive of inferior lateral ischemia.  Ejection fraction within normal range.  Will have heart cath next.  DR. doesn't seem to think there is a blockage, but wants to test to be certain.  What is the liklihood of blockage?  Have hypertension, overweight, sedentary lifestyle, and high cholesterol.

[kenkeith]

If you take a nitrate for chest pain, and there is relief the probability is good there is some blockage.  EKG and echo is not a very reliable source for vessel blockage, however, the echo is quite reliable for any heart wall damage and EF.  If there is ischemia, it hasn't advanced to cause any heart wall damage, and the stress test is good for identifying any blockage.  The probability is high for blockage as hypertension, etc. puts you in a high risk category as well as a postive stress test..