Submitted by Dr T on January 27, 2013 – 8:57am
If your symptoms are new since the pacemaker implant, it needs to be checked and I doubt the ER looked at all options. When the pacemaker leads were positioned inside your heart, one of them may have perforated your heart muscle and cause some blood to leak into your heart sack. If so, I am concerned you may have a pericardial effusion causing a condition called tamponade. You should see your doctor asap and ask for a cardiac echo to check this out.
I have written about this condition before as you will read here.
Hope this helps,