a stress test will just show previous heart attacks or some sort of problem with the electrical pahtways in the heart. For preventing heart attacks, having a catheterization gives you an idea of the plaque buildup in the arteries leading to your heart. You had this, right bro? what was your doctors conclusion?
Ok...., sorry. I can't take any more. My friend, almost nothing you have written has any factual truth in the field of medicine. Some of your statements are so blatantly uneducated and generalized I refuse to even address them. I however cannot let this one slide because it would be quite unfortunate for someone to assume that a stress test "only shows previous heart attacks" and that a heart cath is the only way to determine plaque buildup.
For one..., a functional study of the human heart can be done with a nuclear stress test utilizing radiopharmaceuticals such as Cardiolite or Myoview. These tests are done with two phases. The resting phase and then the stress phase. Functional images are taken with a gamma camera during both phases which show distribution of the injected radio-tracer throughout the myocardium. These images are taken with a SPECT protocol which acquires projection views of the heart which are then recombined later into a sonogram. Horizontal Long Axis, Vertical Long Axis, and Short Axis views from both the resting and stress images are compared. Defects appearing on both the resting and stress images DO indicate a previous myocardial infarction, HOWEVER..., if a defect appears on the resting images, and DOES NOT appear on the stress images, then the patient is diagnosed with Ischemia. Can anyone guess what the main underlying cause of Ischemia is? Atherosclerosis. Build up of plaque. Therefore, the patient will more than likely be scheduled for heart catheterization if they meet certain screening issues, and the cardiologist will likely implant one or multiple stents.
This determination was MADE POSSIBLE due to the diagnosis of Ischemia based on data acquired UTILIZING A NUCLEAR STRESS TEST! The good news is the cardiologist will have a functional and morphological "road map" so to speak showing him exactly which area of the myocardium is being/has been affected. Again this is very important, and quite beneficial to the patient.
Furthermore, cardiologists are able to notice small deviations in the EKG during a normal stress test that can indicate previous MI and/or Ischemia.
There is a reason these tests are one of the most important, and frequently performed tests in the hospital setting. They are LESS INVASIVE TO THE PATIENT than a heart cath. To many potentially dangerous variables come into play during a heart cath procedure. Not that a cath isn't routine, it is just absolutely insane for one to suggest that a stress test is pointless. There
are certain patients who have OTHER underlying health problems that make them high risk for stress test complications. These patients will more than likely go straight to the heart cath floor. For the majority of us however a nuclear stress test is the least invasive, and most informative test one can have, and is usually a great starting point to determine if any further treatment is needed.
In closing..., if you believe that a catheterization is the only test that can show a blockage then you are either ignorant on the subject of cardiology, or at least ignorant on the current state of practice used in the discipline of cardiology. If your cardiologist believes this...., fire him, and/or move out of the sticks and go to a hospital that can afford a nuclear medicine department. I mean Jesus, even a CT of the heart will show the actual calcium deposits within the coronary arteries!