Have any of you ever gotten this following your OH surgery and if so, what was done to treat it and was it successful? I currently have it and have another echocardiogram scheduled for Tuesday to see if the pericardial effusion has been reduced somewhat. I read on the Internet that bedrest is also indicated for this. So, this means no walking for me for awhile but I can continue my deep-breathing exercises and use my spirometer. I believe I got this right after surgery at Cleveland on 6/5 or possible from bleeding when my pacer wires were removed. I had night sweat the entire time after my surgery which is also a clue and had been running a lowgrade temp 101 and under. I believe if they had done an echocardiogram before I was dismissed, they would easily have picked this up.