I am new here and hope someone can help clear up some confusion for me. 3 weeks ago I went to my PCP for a checkup and he was listening to my heart and said I had a heart murmur. He said they are normally innocent but wanted me to see a cardiologist to be sure. He also told me he was going to have an ecg done before I left. He left and the nurse did the ecg, I picked up my referral and left. about 20 minutes later the receptionist called and asked me to come back because the doctor needed me to pick something up. I went back and they gave me the results of the ecg and told me to take them to the cardiologist. He had written on the results prolonged QTC. The results were: Vent. Rate 54 bpm, P Duration 102 ms, QRS Duration 100ms, PR Interval 158 ms, QT interval 480 ms, QTc interval 468 ms, QT dispersion 38 ms, P-R-T Axis 41 67 56. When the cardiologist asked why I was referred I told him for a heart murmur. He listened to my heart and did another ecg and said he heard a slight murmur but wasn't too concerned, but he scheduled an echo for a week later (today). I told him I had the results from the ecg done at the PCP and asked if he wanted to see them. He said he didn't need to see it. I told him I was concerned because the PCP had written long QTc on the results, he looked at the ecg results he just did and said it was slightly long by fine. I went back to my PCP for a pelvic exam yesterday and he asked if I had seen the cardiologist. He told me what concerned him was the long QT interval, and said if I have a long QT we need to be really careful with medications I take which can prolong the QT. I told him about the cardiolgist exam and told him I didn't show him the results from the first ecg, and that he did his own and didn't say anything about the QT. The PCP seemed a bit concerned and said he would wait to see what the cardiologist sends back and will stay on him about the long QT. I had the echo done this morning and the cardiologist listened to my heart again. He said my heart was fine, there was a slight murmur and some leakage at some of the valves but no heart is perfect. I didn't ask about the QT again because I didn't want to seem annoying.
My question is, could the QT interval on the first ecg have been wrong? Why would it be so long on the first and not the second. Also, since I told the cardiologist I was there for a murmur, not for the long QT, I'm afraid he might not have paid attention to the QT. His English wasn't great so I was having a kind of hard time communicating with him. But, if the cardiologist said everything was okay, should I just let it go? Can you have a long QT interval once and never again?
Sorry this was so long, next time I'll ask more questions at the doctors office, but I was really nervous.