Hi, I know this is late. I am a psych nurse who underwent a:no: mitral valve repair in 02. Since I have had intermittent afib, a PE , PVCs and flash pulmonary edema. I take 120mg lasix. I just had a tumor removed under my left breast and they found I still have most of my pacing wires. It was a nurse that took them out. Could this be the reason for all my troubles???